Hello, I have a GMC320 Plus V4 that I haven't used in like 5 years. I fully expected the 14500 battery to be dead, however I plugged in the USB and the unit started to infinitely restart. Why? Next I tried removing the battery and the unit started to scream/emit noise. Had to unplug from USB. Unit only makes noise without battery plugged in and with USB power. Unit continues to power cycle on USB power.
Any help please... |