[cvae]

Thanks a lot !
unfortunately, it's not possible to test two of them :
invalid firmware format error when reading with MP3 player firmware upgrade tool 5
the third one (G-18A Main V.03 Screen CS1813B2F2) have been already tested : it's ok for usb but the screen stay blank
have you any idea ?
:roll:
Anyway, thanks for all the time used to answer our questions !!
great guy :wink:
Chris