Find Gen 3 SID

If you're using an emulator or GBA flashcart

If you're playing Ruby or Sapphire

Open PokeFinder and click the "IDs" button in the "Gen 3" tab.
Select the "RS" tab in the new window that appears.
Check "Dead Battery" if you have a dead battery (likely), otherwise fill in the time and date you started the save.
Enter your TID in PokeFinder's filters.
Click "Generate" to get a list of possible SIDs.
If you have multiple possible SIDs, save your game before choosing your starter.
Attempt to RNG your starter for each SID. If you get a shiny, you found your SID.

Go to Lincoln's SID Finder.
Enter your TID and click the "TID" circle.
Enter 5a0 as the "Initial Seed".
Click "Generate" to get a list of possible SIDs.
If you have multiple possible SIDs, save your game before choosing your starter.
Attempt to RNG your starter for each SID. If you get a shiny, you found your SID.

If you already have a shiny

Use EV-reducing berries if the Pokémon has battled to reset EVs.
Open PokeFinder and go to "Gen 3 Tools" > "IV Calculator".
Input the Pokémon's info to determine its IVs.
Open "Gen 3 Tools" > "IVs to PID".
Enter the Pokémon’s IVs, nature, and your Trainer ID.
Search for results and determine the correct method:
- Wild Pokémon: Methods 1-4.
- Legendaries: Method 1.
If multiple SIDs appear, attempt to RNG a shiny using each until you find the correct one.

If you play Emerald, didn't alter Dewford Trends, and have a dead battery

If you play Emerald, didn't alter Dewford Trends, and have a save under a day old

If you have a hacked Wii or Gamecube and a GBA-GC cable

If you have an NDS and NDS flashcart

If you can transfer Pokemon to a hacked DSI, 3DS, or Switch

If you have an NDS connected to WiFi and a Gen 4 game

Join the Pokemon RNG Discord.
Ask if someone is willing to check the SID of your Pokemon using the PokeClassic Network GTS.
Transfer a Pokemon up to a Gen 4 NDS game.
Put a Pokemon on the PokeClassic Network GTS.
Tell the other person which Pokemon is yours.

If you can transfer Pokemon to Pokemon Home

If you're okay using ACE and play Emerald

Set up ACE with this guide.
Use the "Read SID from Pokémon in box 9 slot 27" code in this pastebin, which sets your TID to be your SID.
View your Trainer Card, which will now show your SID instead of TID.
Soft reset to avoid saving the changes.

If you're okay starting a new save in Emerald

If you're okay starting a new save in Fire Red or Leaf Green

Start a new save
Start a stopwatch when you press A to accept your name on the "YOUR NAME?" screen.
Stop the stopwatch when your character shrinks and turns white, just before the character is in the moving truck.
Open PokeFinder and click the "IDs" button in the "Gen 3" tab.
Select the "FRLGE" tab in the new window that appears.
Enter your TID in the TID field.
Multiply the number of seconds on your stopwatch by 59.7275, and round down to get your likely advance.
Subtract 50 from your likely adance and enter the result in the Initial Advances field.
Add 50 from your likely adance and enter the result in the Max Advances field.
Click "Generate" to get a list of possible SIDs.
If you have multiple possible SIDs, save your game before choosing your starter.
Attempt to RNG your starter for each SID. If you get a shiny, you found your SID.

If nothing above applies to you (last resort option)

Are we missing a method? Join the Pokemon RNG Discord and let us know!

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