I've problems with my mp4 player:
memory HY27UH088G2M
chip ATJ2091N
non standard mini-usb
After turning on shows only clepsydra. windows see him as USB 2.0 (HS) ADFU Device but in explorer theres any removable discs.
When run MP3 Player Upgrade tool (ver 4.18 and 5.09) nothing happens, device firmware information is blank
what shall I do to fix this??
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ok on MP3 P U T 3.68 i can run in recovery mode but....
Downloading the restorable main program
and freeze, progress bar stands still