Hacking My EZ 3 in 1 flash cart cant save

[Valmanway]

Um i think it ran out of batteries.. but then in my micro sd, i see save file folder.. how can i make it work again?

 

[redact]

i had the same problem bc dealextreme shipped me one with flat batteries, as long as you know how to solder you will be ok, if not you're SOL

all you have to do is go to your local watch repair shop and look for any 3v battery that will fit in your 3in1, buy it and then just solder it on (make sure to make a note of which contact is positive and which negative before de-soldering the flat battery)