You could try: - booting into recovery -- find out which key combo might trigger that at power-on - booting into an OEM download mode -- "" - probably a cable

You could try: - booting into recovery -- find out which key combo might trigger that at power-on - booting into an OEM download mode -- "" - probably a cable insert + key combo - triggering the Qualcomm download mode -- "" That would load a different boot setup (maybe kernel, or just ramdisk, and whatever tools they added on top from that particular OEM), and that may allow you to charge. That can work sometimes.