Flashcart Widescreen Guide

This guide will teach you how to setup widescreen with any nds flashcart running the WoodR4 kernel

What you need

Method 1: Patching TwlBg.cxi manually

  1. Download this and put it in /gm9/scripts on your 3ds's SD
  2. Insert your SD into your 3ds and power it on while holding start
  3. In the GodMode9 main menu press the home button and navigate to Scripts > section0_dumper and run it
  4. When it's done running power off your 3ds and insert your SD into your pc
  5. Navigate to /gm9/out and copy the file section0.bin located there to somewhere on your pc
  6. Download mkpatch_b from here and extract it to the same folder as section0.bin
  7. Download this and place it in the same folder as the two other files
  8. Double-click the wide.bat script and let it run (it should generate a file called TwlBg.cxi)
  9. Make a sysmodules folder in the luma folder on your SD
  10. Copy the TwlBg.cxi file to the sysmodules folder

Method 2: Using Sono's TWPatch to patch TwlBg.cxi

  1. Download and install TWPatch on your 3ds
  2. Launch TWPatch from the home menu, it looks like this:
    TWPatch Home Menu
  3. Select Nintendo Default (or whichever one you'd like) and press Start
  4. Wait for it to finish compressing
  5. Press Select to exit
  6. Power off your console

Enabling and Disabling widescreen

To enable NDS mode widescreen simply enable the Enable loading external FIRMs and modules option in luma config, and disable that option if you don't want it. If you would like to get rid of NDS mode widescreen completely, delete TwlBg.cxi located in /luma/sysmodules on your SD Card.

(Optional) [Advanced] 16:10 Widescreen Patches

  1. Download r4cce from here
  2. Insert your flashcart's SD into your pc
  3. Copy the file usrcheat.dat located in /_rpg/cheats on your flashcart's SD to somewhere on your pc
    (if your flashcart's SD is empty download this and extract it to your flashcart's SD root)
  4. Open r4cce
  5. In r4cce press Ctrl + O and select the usrcheat.dat file that you copied to your pc
  6. Open this gbatemp post in your web browser to check if your game has a 16:10 code written for it
    (if it doesn't you're stuck with normal streched)
  7. In r4cce, find your game in the list, if it isn't there select Add Game and then select Dup?. It should bring up a file selection, from there select your nds rom
  8. Right click on the game title and select Add Code
  9. Name the code 16:10 Widescreen or something similar
  10. Paste the code from the gbatemp thread into r4cce like this:
    r4cce HG code
  11. Do this with all of the titles you want 16:10 widescreen for
  12. Once you're done save the usrcheat.dat by pressing Ctrl + S and copy the file to /_rpg/cheats on your flashcart's SD, replace the existing one when prompted to
  13. Insert your flashcart's SD into your flashcart
  14. Power on your 3ds and launch your flashcart from the home menu
  15. Navigate to your nds game and press ybutton on it
  16. Press xbutton to open the cheat menu and select the widescreen code
  17. Press xbutton again to save
  18. Launch the game and it should be widescreen 16:10