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[ANSWERED / CLOSED] OnePlus 5 dead, won't turn on, no charging LED Nov 28, 2020

Heatman87 , Nov 28, 2020 :

Hello everyone,

Recently my OnePlus 5 was on low battery at night, so I plugged it into the charger. When I woke up in the morning, the phone was dead and I could not turn it on anymore. This has been the state since then, I have not been able to turn it on and the phone also does not show a LED when plugged in to the charger etc.

I have already tried a few things mentioned on the forum, such as different combinations of the volume and power buttons, but nothing worked so far.

Mainly I am trying to figure out now how determine whether either the charging port is dead, or the battery, or the motherboard:
- If simply the battery was dead (and nothing else), would the phone then show an LED when plugging it into the charger, or not?
- If the charging port was dead (and nothing else), such that it did not charge and just shut down on its own, would I be able to power it on at least for a second or so before it dies again?

Just trying to figure out if the motherboard is actually dead, or if there is still some hope for me. Thank you very much!