Serial S/N a912
when I flash this firmware 708NO AP6255 box stop on logo
I try few firmware 109, 111, 707NO AP6255, 708NO AP6255, SUPERCELERON, ALVATECH, TvStock Nexus, Nano Nexus
and box freez on logo each rom I try stock and custom
I flash a few firmware and no positive effect
I was contacted service email but no solution
I use 2 different cable, but box stay on logo
No booting to the android system only logo is showing on start up
Can someone help me solve problem ???
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