my MX4 PRO suddenly stopped being recognized by any computer (linux, windows or mac) whatever the transfer mode I choose (mtp, ptp, virtual cd-rom…). Even the debug mode don’t solve this. OTG don’t work anymore also. I don’t have any error message. Nothing just happens.
USB charging is ok if I plug the phone to a computer usb port or to the wall charger.
I tried several cables, wiped user data, formated sd-card and even reflashed the rom (Flyme 4.5.7I and Flyme 18.104.22.168G), removed and replaced the battery…
Did someone encountered the same issue?
I’m thinking about a hardware failure. I found a replacement USB board for about $5 US. Do I have any chance to recover the usb data transfer functionality if I replace that board?