Trying to install R4 kernel onto another cartridge

I have a sketchy 'Pandora-DS' DS cartridge (uploaded pic) that has a microSD card, and I've been trying to replace the software already on it with an R4 kernel to no avail. Is this because I need an actual R4 chip for the R4 kernel to work, or do I need to somehow configure the cartridge to accommodate the R4 kernel? When inserted into my DS lite, the cartridge is called 'Alex Rider Stormbreaker'. Just in case can you guys check if my root directory looks alright?

-moonmemo
-moonshl2...

Trying to install R4 kernel onto another cartridge