I have a problem with my device Wiko Lenny. First of all the device it's just stuck on logo and nothing happened even afer format it.
I tried to upgrade the device with stock firmware with V20 and first i get the error S_CHKSUM_ERROR (0x411) and the device it was only black screen. I tried to flash again without tick of DA DL Checksum and the proces was suces but the device it is just with black screen.
Finally i found another one firmware from another source and i tried to flash the device, the problem still continue but with a small change now the error is S_CHKSUM_ERROR (1041). And my device is again in black screen!
