Hardware Supercard SD (micro SD) GBA - sdram error

[TheGuyUpstairs]

I fixed the SDRAM error by reinstalling the SD card firmware... and Changing the battery... Installed a CR2032 Holder.. Ok its outside the gba cartridge... but whatever works... make sure you put in a good battery.. like energizer.. or Duracell.. i tried with thoses cheap ones and they dont last long... resulting in a SDRam error...

 

[TheGuyUpstairs]

i went with a CR2032 double cell holder.. Because it's what i had laying around the house.. But there is only one Battery in it... Dont put two in it if you get the same holder... now as for me.. my next step is installing a real time clock in it... if possible anyone can help on this ??