Troubleshooting a Thinkpad T570. It shuts off after roughly 10 seconds if the AC power is connected. However, if only running off internal battery it works fine, at least for now while the battery still has some charge left. If AC is plugged in and it shuts off it somes won't turn back on until the battery reset button is pushed on the motherboard. It does not charge. Unit had been charged with a generic Targus AC adapter so I'm assuming it may have a dodgy mosfet? Photos attached.
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