[STEF71]

Hello everybody,
hope you can help me to resuscitate this beauty (but annoying) device;
The reader is on switch off mode. Means, black screen, switch off written at the left bottom corner;
Apparently there is no way to make it start. I tried the factory reset, but no way to make it work; No error messages; just decided to do not start anymore; I have decided to disassembly it; All seems ok inside; the adhesive of the battery doesn't hold anymore but that's not an issue;
I read it may be an issue with the IMAGE of the internal 4gb SD card..
I am quite desperate because to buy a new one want to make sure to try all possible best to recover it;
Hope you can help me;
PS I am new here, so I apologies if the thread I opened is not correctly allocated.
Many thanks in advance to all of you
stef