I found an ARM7 FIX file that has a bat file to make life easier for people that want to patch their games with the ARM7 FIX, but are too noobish to do it manually. It requires that you put a working ROM (suggested ROMs to use are in the readme) in one folder (called "doner") and the one that needs fixed in another (called "patient"), double-click the .bat file, follow the instructions and it creates the fixed file as "fixed.nds" which you just rename and start playing.
I confirmed that it works for Worms 2 and Simple DS Series 21 on the R4 using this and the SimCity (J) ROM as the doner.
Here's the credits in the readme:
arm7 injection (M3 patch) - By Bad_Ad84
Original credit to CougRAWR and Go185 from Gbatemp for the method.
Special thanks to Rashef for bringing this to my attention and DarkFader for NDSTool
The file is only 48k zipped
Currently uploading it to the "ROM patchers & header Info" section.
For the time being, you can get it here:
arm7_fix.zip (48k)