I trying all of testmodes: 104bytes, 164bytes, 132bytes - the same resault.
Cards was 2Gb, 4Gb and 16Gb, formatetd with fat32 and fat - the same.
Device unplugged, and stay alone on the table
So, I have full backup previosly state of device - NAND& NAND2, but how I can go to filemanager...
Pressing to buttons (Home+ then 3xback-forvard) - not working.
After upgrade all will be Ok, and testmodes was worked, but may be I delete same files from NAND...
Here little video of curren state http://sendfile.su/757813
May be you know another methods, such as formating flash, or have another