Hardware GBA Save problem on M3 Real

[Sasha77]

Hi,

I have M3 real + expansion pack for GBA games.
When I play GBA games on my M3 , I can Save the games, but after a few plays, my Saves have disappeared when I want to load them.
I did not check on my SD card , but I guess the Saves have not been erased, it is just the M3 which does not recognize the Save files anymore.
It is the same problem for all my GBA games, for instance Fire Emblem, Super Robot Wars ...

Could someone please help to resolve this problem ?

Thanks a lot

 

[how_do_i_do_that]

your battery is about to die. you need to replace it or get a new gba expansion pack. The bundle packs have been probably sitting on a shelf for a while so the battery life is shorter for you.

you can use the battery replacement guide:
http://gbatemp.net/index.php?showtopic=132872


either that or you have the saving bug, where you will have to manually back up the save 2 or more times before it transfers. there is no fix for this known bug.