Every Pokémon emulator setup guide on the internet covers the same ground: install this ROM, map these buttons, tweak this filter. Almost none of them explain what happens when you actually want to trade a Pokémon between two copies of a game running on your own PC, phone, or a mix of both. That gap matters more than it sounds. Evolutions like Alakazam, Machamp, and Gengar only happen through a trade, and several Gen 1 through Gen 5 titles were built around swapping version-exclusive monsters between Red and Blue, Ruby and Sapphire, or Diamond and Pearl.
This guide walks through the actual mechanics of trading Pokémon between emulator instances using link cable emulation, wireless adapter emulation, and local network play. It covers mGBA 0.10.5 for Game Boy Advance games, VBA-M 2.2.3 for Game Boy and Game Boy Color titles, and melonDS 0.11.3 alongside DeSmuME for Nintendo DS generations. By the end you will have two working game instances trading Pokémon back and forth, whether they sit on the same desktop or on two different machines connected over your home network.
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Why Trading Between Emulators Trips Up So Many Players
A real Game Boy link cable carries a simple serial signal between two consoles. When you emulate that connection, the emulator has to fake the timing, the handshake, and the byte-by-byte exchange that the original hardware handled in real time. Get any one of those wrong and the trade menu freezes, a Pokémon vanishes from both save files, or one instance just refuses to see the other.
The good news is that modern emulators have mostly solved this. mGBA’s developers have kept the core link cable code under active development, with commits landing as recently as September 10, 2026, including fixes to Game Boy MBC3 SRAM handling that improve save reliability during long trade sessions. melonDS shipped a thread-safe input fix earlier in 2026 that specifically targeted crashes during local wireless multiplayer, the same subsystem Pokémon Diamond and Pearl use for Union Room trades. The tools work. Most failures come from configuration mistakes, not broken emulators, and that is exactly what this guide is built to prevent.
There is also a practical reason this matters more in 2026 than it did a few years ago. Original Game Boy Advance and Nintendo DS hardware is getting harder to find in working condition, and a genuine link cable for GBA-era trades has mostly disappeared from store shelves. Plenty of players own two legally dumped copies of a Gen 3 or Gen 4 title but no physical way to connect them, which is exactly the gap emulator-to-emulator trading fills. It also opens up trades that were never possible on original hardware at all, like connecting a copy running on a Windows desktop to a second copy running on a MacBook across the room.
Prerequisites: Software, ROMs, and Versions You’ll Need
Before touching any settings menu, gather the following. Skipping a prerequisite is the single biggest reason readers get stuck halfway through step 6.
- Two legally dumped ROMs of games you own, from the same generation (Ruby and Sapphire, or two copies of Emerald, for example)
- mGBA 0.10.5 (the current tagged stable release) for Game Boy Advance trades, downloaded from mgba.io
- VBA-M 2.2.3, released October 25, 2025, for original Game Boy and Game Boy Color trades, from the official VBA-M GitHub repository
- melonDS 0.11.3, released July 18, 2026, for Nintendo DS-era Pokémon titles, from melonds.kuribo64.net
- DeSmuME as a fallback DS emulator, from desmume.org, for titles where melonDS local multiplayer misbehaves
- A Windows, macOS, or Linux PC with at least 4GB of free RAM, since you will run two emulator instances simultaneously
- Two separate save files, one per ROM, stored in different folders so the emulators never overwrite each other
- PKHeX 26.08.26 (optional, for the advanced cross-generation section) from the official PKHeX GitHub page
- A wired or stable Wi-Fi network connection if you plan to trade between two separate physical devices
One clarification worth making up front: trading between two instances of the same emulator on one PC is legally and technically the simplest path. Trading between two different emulators, say mGBA on one machine and a mobile GBA emulator on another, is possible for Gen 3 titles because they share a documented link protocol, but it introduces more failure points and gets its own section further down.
Generation compatibility is worth double-checking before you dump any ROMs. A trade only works between two games built for the same link hardware, which usually but not always lines up with generation number. Ruby and Sapphire trade with each other and with Emerald, since all three share the GBA link protocol, but FireRed and LeafGreen also join that same pool despite being remakes of Gen 1 games. Diamond and Pearl trade with Platinum and with HeartGold and SoulSilver, since all four are DS titles using the Union Room, even though HeartGold and SoulSilver are technically remakes from a different content generation. When in doubt, check whether the two games shipped on the same physical cartridge format before assuming they can link.
Step 1: Pick the Right Emulator Pair for Your Pokémon Generation
Not every emulator handles link cable emulation the same way, and picking the wrong one for your generation wastes hours. Use this table to match your games to the right tool before you install anything.
| Pokémon Generation | Games | Recommended Emulator | Link Method | Current Version |
|---|---|---|---|---|
| Gen 1 | Red, Blue, Yellow | VBA-M | Emulated wireless adapter | 2.2.3 (Oct 2025) |
| Gen 2 | Gold, Silver, Crystal | VBA-M | Emulated wireless adapter | 2.2.3 (Oct 2025) |
| Gen 3 | Ruby, Sapphire, Emerald, FireRed, LeafGreen | mGBA | Built-in link cable, local or TCP | 0.10.5 |
| Gen 4 | Diamond, Pearl, Platinum, HeartGold, SoulSilver | melonDS | Local wireless multiplayer | 0.11.3 (July 2026) |
| Gen 5 | Black, White, Black 2, White 2 | melonDS or DeSmuME | Local wireless multiplayer | 0.11.3 / latest |
Notice that Gen 3 is the easiest starting point. mGBA’s link implementation is the most mature of the group, and it is the emulator most current guides point to first, so the bulk of this tutorial uses mGBA and Ruby/Sapphire-style trades as the working example before branching into VBA-M and melonDS.
Step 2: Install mGBA 0.10.5 and Prepare Two Game Instances
Download the correct build for your operating system from mGBA’s official site and install it normally. Once it launches, create two separate folders for your save data, one per ROM copy you intend to trade between. This prevents the classic mistake of both instances pointing at the same save file, which silently corrupts one or both games mid-trade.
mkdir C:\PokemonTrade\Ruby
mkdir C:\PokemonTrade\Sapphire
copy "Pokemon Ruby.gba" C:\PokemonTrade\Ruby\
copy "Pokemon Sapphire.gba" C:\PokemonTrade\Sapphire\On Windows, launch a second mGBA process from File Explorer or a shortcut rather than using Ctrl+N inside the same window. mGBA supports multiple independent windows through File > New GBA Window, but for trading you want two fully separate processes so a crash in one does not take the other down with it.
Step 3: Enable mGBA’s Built-In Link Cable and Load Both ROMs
With both mGBA windows open, load Ruby into the first and Sapphire into the second. Then, in each window, open Tools > Link and enable the local link option. mGBA negotiates the connection automatically once both windows have the link menu active, there is no manual IP entry required for same-PC trades.
If you prefer to configure this through mGBA’s config file instead of the menu, the relevant keys look like this:
[core]
linkEnabled=1
linkPort=1
[qt]
linkWindowVisible=1Save each config to its own instance folder rather than the shared mGBA appdata directory. On Windows that means passing --config with a path when launching from the command line, so each window reads its own settings without one overwriting the other’s link state.
Test the Link With a Disposable Save First
Before you risk a save file with 40 hours of progress in it, start a brand new game on both instances and confirm the full link-and-trade cycle works end to end. This takes maybe ten extra minutes and it is the single best way to isolate a configuration problem from an actual hardware-level bug in the emulator build you downloaded. If two throwaway saves trade cleanly, you know your link setup is correct and any future issue is specific to that particular save file rather than your configuration. If the throwaway saves fail to trade, you have saved yourself from corrupting a save you actually care about while you debug the connection.
Step 4: Trade Locally Between Two mGBA Windows on One PC
In-game, walk each character to a Pokémon Center and approach the trade counter (in Gen 3 it is the two-tone room next to the counter, distinct from the healing counter). Talk to the attendant on both instances within a few seconds of each other. If the link handshake succeeded in the previous step, both games will show a connection prompt almost immediately.
Select the Pokémon you want to send on each side, confirm on both instances, and watch the trade animation play out identically in both windows. This is the same sequence real link cable hardware produces, just running on two virtual Game Boy Advances instead of two physical ones.
Why This Works at a Technical Level
Pokémon’s trade protocol is symmetric: each game sends the exact same category of packet at the exact same moment, whether it is negotiating a link type, entering the Trade Center, or exchanging trainer data. Because both sides speak identical structured messages, an emulator only has to forward bytes between two processes rather than simulate any actual game logic. That is why link cable emulation for Pokémon trading is comparatively reliable next to, say, emulating real-time voice chat or a physics-based multiplayer session. The protocol was designed for two identical machines talking to each other in lockstep, and two emulator windows on one PC satisfy that requirement just as well as two Game Boys ever did.
Step 5: Trade Over the Internet With mGBA’s TCP Link Mode
Trading with a friend on a different network requires exposing the link connection over TCP instead of keeping it local to one machine. The host player opens their router’s port forwarding page and forwards the port mGBA’s link server uses (commonly configured to a fixed port like 7778 for this purpose) to their PC’s local IP address.
# Windows firewall rule to allow inbound mGBA link traffic
netsh advfirewall firewall add rule name="mGBA Link" dir=in action=allow protocol=TCP localport=7778The connecting player then enters the host’s public IP address and the forwarded port into mGBA’s link connection dialog instead of relying on local auto-discovery. Latency over the internet is higher than a local trade, so expect the trade animation to feel slightly delayed compared to the same-PC method in Step 4. If the connection drops mid-trade, back out to the main menu on both sides and restart the link handshake rather than trying to resume mid-animation, since a partial trade state is one of the more common ways a save file gets corrupted.
Step 6: Set Up VBA-M’s Wireless Adapter for Gen 1 and Gen 2 Trades
Original Game Boy and Game Boy Color Pokémon titles predate the GBA link protocol mGBA emulates, so VBA-M 2.2.3 handles them through a different path: an emulated wireless adapter rather than a literal link cable. Open Options > Link > Settings in each VBA-M instance and set the connection type to Wireless Adapter on both sides.
Just as important, go to Options > Emulator and make sure Pause When Inactive Window is unchecked in both instances. VBA-M pauses background windows by default, and if that setting stays on, one of your two games freezes the instant you click into the other, which breaks the timing the trade handshake depends on.
[Link]
LinkType=Wireless
SpeedHack=0
PauseWhenInactive=0With both settings applied, load your two Game Boy Color save files, walk each trainer to the trade area (the Time Capsule counter for Gen 1, or the standard trade room for Gen 2), and initiate the connection the same way as the mGBA workflow. Note that Gen 1 and Gen 2 use different internal trade data formats, so a Gen 1 game can only trade with another Gen 1 game, not directly with Gen 2, even though both run through VBA-M.
Step 7: Configure melonDS and DeSmuME for Nintendo DS Trading
Diamond, Pearl, Platinum, HeartGold, SoulSilver, Black, and White all trade through the DS’s local wireless system rather than a physical cable, and they use the Union Room instead of a Pokémon Center trade counter. melonDS 0.11.3 is the stronger choice here since its local multiplayer code received a thread-safety fix earlier in 2026 that specifically addressed random crashes during exactly this kind of session.
Launch two separate melonDS instances, each pointed at its own ROM and save folder. In each instance, open the local multiplayer or Wi-Fi settings panel and select the option to host or join a local session rather than connect to the internet.
[Multiplayer]
Mode=Local
Instance=1
SaveDir=C:\PokemonTrade\Diamond\
[Multiplayer]
Mode=Local
Instance=2
SaveDir=C:\PokemonTrade\Pearl\Once both instances detect each other, walk both characters into the Union Room, select Trade, and pick your partner from the connected player list. If melonDS’s local multiplayer refuses to detect the second instance, DeSmuME is a reasonable fallback, though its wireless implementation is less consistently maintained and historically less stable for this specific use case than melonDS’s dedicated local play mode.
Step 8: Walk Through the In-Game Trade Sequence
Once the emulators are linked, the actual trade plays out the same regardless of generation. Approach the trade NPC or Union Room terminal on both instances, select the Pokémon you want to offer, and confirm the trade summary screen that appears. Both games display the incoming Pokémon’s stats before you commit, exactly as they would on real hardware.
Confirm on both sides within the same short window. If one player hesitates too long, several emulators (mGBA included) will time out the link and drop back to the overworld, at which point you simply walk back to the trade counter and try again.
Step 9: Confirm the Trade Saved Correctly on Both Sides
Do not close either emulator window immediately after a trade completes. Let each game auto-save, or manually save from the in-game menu, then check your party or PC box on both instances to confirm the swapped Pokémon actually landed. This step catches the rare case where a trade animation finishes but one side’s write to the save file fails silently, usually because of a disk permission issue or an antivirus scanner locking the save file mid-write.
Keep a backup copy of both save files before you start trading. Copy the .sav file to a separate backup folder, since restoring from a backup is far less painful than losing hours of progress to a corrupted trade.
Step 10: Trade Between Two Physical Devices Over a LAN
Running two emulators on one PC works for testing, but most people actually want to trade between two different computers, or a PC and a phone, sitting on the same home Wi-Fi. This is simpler than the internet TCP setup from Step 5 because you skip port forwarding entirely.
Both devices connect to the same router. In mGBA’s link settings, choose the local network option instead of the loopback address, and enter the other machine’s LAN IP address (found through ipconfig on Windows or ifconfig on macOS/Linux) rather than 127.0.0.1.
ipconfig | findstr IPv4
# Example output: IPv4 Address. . . . . . . . . . . : 192.168.1.42
# Use 192.168.1.42 as the host address on the connecting instanceThis table compares the three connection methods covered so far, so you can pick the right one before you start troubleshooting a method you didn’t need.
| Method | Setup Difficulty | Typical Latency | Best For |
|---|---|---|---|
| Same-PC local link | Low | Under 1ms | Solo trading, testing, evolutions |
| LAN between two devices | Medium | 1-5ms | Trading with a family member or roommate |
| Internet TCP link | High (requires port forwarding) | 20-150ms depending on distance | Trading with a friend remotely |
Trading Between a PC Emulator and a Phone Over Wi-Fi
A common variation on the LAN setup in Step 10 is trading between a desktop emulator and a mobile port running on Android or iOS. Because the Gen 3 link cable protocol is defined at the game level rather than the emulator level, a properly implemented mobile GBA emulator can trade with a desktop mGBA instance the same way two desktop copies trade with each other, as long as both apps expose a link or multiplayer option and both devices sit on the same network.
In practice, this setup has a few extra wrinkles that don’t come up on desktop-to-desktop trades. Mobile operating systems aggressively suspend background apps to save battery, so both the phone screen and the emulator app need to stay in the foreground for the entire connection, from the link handshake through the final save write. Android in particular will throttle or kill a backgrounded app’s network socket within seconds if the screen locks mid-trade, which looks identical to a dropped connection but has nothing to do with the emulator itself. Keep the phone’s screen timeout set to at least a few minutes and disable battery optimization for the emulator app before you start.
Input lag is the other practical difference. A phone emulator running through a touchscreen or Bluetooth controller adds a small amount of extra latency compared to a keyboard on the same LAN, which occasionally causes one side to confirm the trade selection a beat later than the other. This rarely breaks the trade outright, but if you notice the animation stuttering or one screen lagging behind the other, back out and retry rather than pushing through it.
Step 11: Automate Repeat Trades With Save States
If you are farming trade evolutions (Kadabra to Alakazam, Machoke to Machamp, Haunter to Gengar) rather than doing a one-off trade, save states cut the repetitive walking-to-the-counter routine down to seconds. Create a save state on both instances standing right at the trade NPC, then reload that state after every completed trade instead of walking back manually.
# mGBA keyboard defaults
F1 - Save state to slot 1
F5 - Load state from slot 1
Ctrl+F1 through Ctrl+F9 - Save to slots 2-9
Shift+F1 through Shift+F9 - Load from slots 2-9For trading back a Kadabra so it evolves and then trading it right back, load the save state on both sides, run the trade, let the evolution animation play out on the receiving instance, then immediately trade it back before either save auto-writes over the state you want to reuse.
Bridging Cross-Generation Trades With PKHeX
Emulator-to-emulator link cable trading only works within a single generation’s hardware protocol. If you want to move a Pokémon from a Gen 3 save into a Gen 4 save, there is no direct link cable path, since the GBA and DS use completely different connection hardware. PKHeX 26.08.26 covers every mainline title from the original Game Boy era through Scarlet/Violet and the newly added Legends: Z-A, and it lets you legally transfer a Pokémon’s data between save files that were originally connected in-game through Pal Park or the Poké Transporter, without touching a live link session at all. This is a separate workflow from everything above, and it only makes sense once your emulator-to-emulator trade is already complete and saved.
Common Pitfalls That Break Emulator-to-Emulator Trades
These are the mistakes that account for the vast majority of failed trade attempts, based on the recurring patterns across mGBA, VBA-M, and melonDS communities. Most of them share a common thread: they happen because the two instances drift out of sync with each other, either in configuration, in timing, or in which save file they’re actually writing to. Once you internalize that pattern, spotting a new pitfall that isn’t on this list gets a lot easier.
- Both instances pointed at the same save file. This is the single most common cause of a corrupted trade. Always use separate folders per instance.
- Mismatched game versions. A Gen 3 Emerald save cannot trade with a Gen 4 Diamond save through link cable emulation. Cross-generation moves require PKHeX, not a live link.
- Pause When Inactive Window left enabled in VBA-M. This silently freezes the background instance the moment you click into the other window, killing the link timing.
- Antivirus software locking the save file mid-write. Some antivirus tools flag ROM and save files as suspicious and briefly lock them, which can interrupt the exact moment a trade tries to commit to disk.
- Trying to trade over the internet without forwarding the correct port. The TCP link mode in Step 5 fails silently if the host’s router blocks the port rather than forwarding it.
- Running two instances from the same installed copy without separate config paths. On Windows especially, both mGBA windows can end up reading the same appdata config, which causes one instance’s link settings to overwrite the other’s mid-session.
- Closing an emulator window immediately after the trade animation ends. The save write happens right after the animation, and closing too fast can leave one side’s file half-written.
Troubleshooting: 8 Issues and How to Fix Them
Even with the setup steps followed correctly, link cable emulation has enough moving parts that something will eventually go wrong. Here are the most frequently reported issues and their fixes.
| Symptom | Likely Cause | Fix |
|---|---|---|
| Trade menu never detects the second instance | Link mode not enabled on both windows, or firewall blocking local traffic | Re-check Tools > Link on both windows, then temporarily disable third-party firewall to test |
| Game freezes the instant you click the other window | Pause When Inactive Window still enabled (VBA-M) | Uncheck it in Options > Emulator on both instances |
| Trade completes but the Pokémon never appears | Save write interrupted by antivirus or a crash mid-animation | Restore from your backup .sav file and retry with antivirus scanning excluded for that folder |
| Internet trade times out before connecting | Port forwarding misconfigured or ISP uses CGNAT | Double-check the forwarded port matches the link port in the emulator, or try a VPN with port forwarding support if CGNAT is the issue |
| melonDS local multiplayer randomly crashes one instance | Outdated melonDS build predating the 2026 thread-safety fix | Update to melonDS 0.11.3 or a newer nightly build |
| Trade works but evolution doesn’t trigger | Some trade evolutions require holding a specific item, which many players forget to check | Confirm the Pokémon is holding the correct evolution item before trading (e.g. King’s Rock for Poliwhirl) |
| Two mGBA windows show different link states | Each window reading a separate config file that got out of sync | Close both, delete the link section from each config, and re-enable link mode fresh in both |
| LAN trade sees the other device but connection drops mid-trade | Router’s Wi-Fi power-saving mode interrupting the socket | Disable Wi-Fi power saving on both devices, or connect at least one via Ethernet |
Advanced Tips for a Reliable Long-Term Trading Setup
Once the basic trade loop works, a few refinements make repeated sessions far less fragile.
- Keep mGBA’s development builds in mind if you hit an edge case on stable 0.10.5. The project’s GitHub repository has active commits addressing save handling issues as recently as September 10, 2026, and a nightly build sometimes fixes a bug the tagged stable release hasn’t caught up to yet.
- Run each emulator instance from a dedicated shortcut with a
--configflag pointing at its own settings folder. This single habit eliminates most of the config-collision issues in the pitfalls list above. - For frequent traders, keep a spreadsheet or text file logging which save file has which Pokémon staged for trade. It sounds excessive until you are three trades deep into an evolution chain and lose track of which instance holds the original.
- If you’re trading Gen 1 or Gen 2 titles and need Time Capsule-style trades between generations within VBA-M, remember the Time Capsule only bridges Gen 1 to Gen 2, not further, and both games must be paused at the exact right menu for the capsule option to appear.
- For long trading sessions, disable your OS’s sleep and USB selective suspend settings. A machine that dims the display or suspends a USB controller mid-handshake is a surprisingly common cause of a link dropping for no obvious reason.
- When trading rare or shiny Pokémon, trade a duplicate first as a dry run through the exact same connection method you’ll use for the real trade. This confirms the link is stable under real trade-menu conditions rather than just during the initial handshake, before you commit something you can’t easily replace.
- If you manage multiple trading sessions with different friends, keep a separate config profile per connection type (same-PC, LAN, internet TCP) rather than reconfiguring the link settings each time. Switching between a loopback address and a public IP address in the same profile is a common source of the “works sometimes” bug reports in mGBA’s issue tracker.
Complete Working Project: A Full Ruby-to-Sapphire Trade From Scratch
Here is the entire process end to end, using the Gen 3 example from earlier steps, condensed into a single checklist you can follow start to finish.
- Install mGBA 0.10.5 and create two save folders, one for Ruby and one for Sapphire
- Launch two separate mGBA processes, loading Ruby into one and Sapphire into the other
- Enable Tools > Link on both windows and confirm they detect each other
- Walk both trainers to a Pokémon Center trade counter
- Talk to the counter attendant on both instances within a few seconds of each other
- Select the Pokémon to offer on each side and confirm the trade summary
- Watch the trade animation complete identically in both windows
- Let both games auto-save, then manually save again from the in-game menu as a safety measure
- Check both party screens to confirm the swap landed correctly
- Copy both updated .sav files to your backup folder before closing either emulator
That sequence, done correctly, takes under five minutes for a single trade and roughly 15 minutes the first time through while you get both instances configured. Every generation-specific variant covered above (VBA-M’s wireless adapter for Gen 1/2, melonDS’s Union Room for Gen 4/5) follows the same shape: link first, confirm detection, trade, verify the save, back it up.
Once you’ve run through this checklist successfully one time, repeating it for a second or third trade takes a fraction of the effort, since both instances already have their save folders, config paths, and link settings sorted out. The only step that changes trade to trade is which Pokémon you select on each side and, if you’re chasing a trade evolution, whether you send it right back afterward.
Frequently Asked Questions
Can you trade Pokémon between two different emulators, like mGBA and a mobile GBA emulator?
Within the same generation, yes, as long as both emulators implement the same link cable protocol correctly. Gen 3 games are the most forgiving here since the protocol is well documented, but expect more troubleshooting than a same-emulator trade, since timing implementations can differ slightly between projects.
Do I need two separate ROM files to trade, or can I use two save slots on the same ROM?
You need two separate save files at minimum, and in practice two separate ROM copies loaded into two separate emulator instances. A single instance cannot run two simultaneous, independently controllable game sessions.
Why does my trade freeze right after I confirm the Pokémon selection?
This is almost always a timing issue between the two instances. In VBA-M, check that Pause When Inactive Window is disabled. In mGBA, confirm both windows show an active link connection in the Tools > Link panel before you enter the trade menu, not after.
Can I trade Pokémon from a Game Boy Advance game directly into a Nintendo DS game?
Not through link cable emulation. The GBA and DS use different connection hardware, and the in-game bridge for this (Pal Park) requires inserting a GBA cartridge into a physical DS, something emulators don’t replicate directly. PKHeX is the practical workaround for moving Pokémon data across that generational gap.
Is trading Pokémon between emulators legal?
The emulators themselves are legal software. The legality of the ROMs depends on whether you dumped them from cartridges you personally own. This guide assumes you are trading between two legally obtained copies, and it does not cover or endorse downloading ROMs you don’t own.
Which emulator has the most reliable link cable trading in 2026?
For Game Boy Advance titles, mGBA is generally considered the most mature implementation, with active development still addressing edge cases as of September 2026. For Nintendo DS titles, melonDS’s 2026 thread-safety fix for local multiplayer makes it the more stable pick over DeSmuME for this specific use case. For the original Game Boy and Game Boy Color generations, VBA-M remains the standard choice since its wireless adapter emulation has stayed largely unchanged and well-tested for years. None of these projects publish formal trade-success benchmarks, so “most reliable” here reflects community consensus and the pace of each project’s recent bug fixes rather than a lab-measured figure.
Can I trade over the internet without exposing my home network through port forwarding?
Some players use a VPN service with built-in port forwarding to avoid touching their router’s settings directly, which can work as a substitute for the manual forwarding described in Step 5. Results vary by provider, and it adds a layer of latency on top of the connection itself.
What happens if my save gets corrupted during a trade?
If you followed Step 9 and kept a backup .sav file before trading, restore that backup and repeat the trade attempt. This is exactly why the backup step exists. Without a backup, recovery options are limited to whatever auto-save the emulator managed to write before the corruption occurred. Some save editors, including PKHeX, can sometimes recover a partially readable save file well enough to extract your Pokémon party even if the rest of the file is unusable, though this isn’t guaranteed and should be treated as a last resort rather than a substitute for backing up in the first place.
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