hi everyone, i just bought a therion 166 with dna 250
but the device had a empty battery indicator, i've tried restore to default the device, but i had a problem that the device wont turn on unless it had an usb power, so i put the battery setting to power supply mode, and the device can firing but the battery indicator still empty, what should i do next, is this sign of a dead chip or somthin else, some of my friend from therion dna indonesia said that this happend bcause my battery IC is dead, and i notice on device manager, the number 1 battery voltage is low not like the second 2, ive tried swap and still the same that the number 1 battery low voltage