Hey, there's a problem !!! Apparatus 4100nex. During firmware died flash drive, which is sewn. Firmware is not completely gone. Radio hung. I tried to throw up a working USB flash drive with the same firmware - without success. After rebooting, the radio black screen with the recommendation to contact your dealer or service. Question: Is it possible to revive the machine with their own hands without going to service? (Just the radio ordered from the United States and send its guarantee quite expensive ...

Maybe someone have to dump the internal SD Card?