hello guys,
i fixed an asus ux305ca which was not turning on at all. gate-vcc was missing on the first fet (check picture), i removed it and bridged source and drain with a wire (finding the gate-regulator is a rabbit hole...). the battery of the device was completely dead and i think it fried the mainboard. i just bought a new battery (aftermarket, but ok) and this would not charge at all. if the battery is not plugged in, i can measure around 0.845 v on the coil (check picture with mark). i think the battery ic is bad or/and there is more missing than the first gate-vcc of the first fet after the charging port. if the battery is plugged, the laptop ist starting, but the charger voltage would not pass through the dcdc-step down for the right battery charging voltage. laptop is otherwise totally fine. thanks in advance! any ideas?
i fixed an asus ux305ca which was not turning on at all. gate-vcc was missing on the first fet (check picture), i removed it and bridged source and drain with a wire (finding the gate-regulator is a rabbit hole...). the battery of the device was completely dead and i think it fried the mainboard. i just bought a new battery (aftermarket, but ok) and this would not charge at all. if the battery is not plugged in, i can measure around 0.845 v on the coil (check picture with mark). i think the battery ic is bad or/and there is more missing than the first gate-vcc of the first fet after the charging port. if the battery is plugged, the laptop ist starting, but the charger voltage would not pass through the dcdc-step down for the right battery charging voltage. laptop is otherwise totally fine. thanks in advance! any ideas?
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