PMU failure after some time

Xinyuan-LilyGO / LilyGo-T-SIM7080G

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PMU failure after some time #32

Closed gfilippi closed 5 months ago

gfilippi commented 8 months ago

I have n.5 units that I was testing in 24/7 mode and one unit failed today.

it was charging the battery (which is now full) but when I checked the board it was "warm" and it is not powering up anymore. even if I press the power-on button I do not see the 3.3v coming up ... and I do have now 5v from USB (I removed the battery)

how to debug this? how to check if the pmu is dead?

thanks

lewisxhe commented 7 months ago

Run this MinimalPowersExampleto see if it works properly and outputs

lewisxhe commented 5 months ago

If you have any other questions, please reopen