I own a fairphone 5 and flash to 1.16 (not sure) then was able to update via ota to 1.18.
I am slowly moving my apps and data from my old phone to this device and discover that my fairphone does not charge when plugged with my huawei p30 pro charger or when directly connected to a laptop.
I have the following info when looking at the battery settings (in french, but can be translated to : connected, but not charging)
Yes, but theoretical it could be that the FP5 now on 1.18 is consuming half a percent more energy than earlier and that this is the reason why the charger now says, no, I can’t anymore. Not likely but possible.
Test: switch your FP5 completely off and then try to charge. This should subtract the energy consumption of the device from the power the charger must provide.
The charger has probably not enough electrical power. Understand this right: the voltage will be OK but the charger can’t provide enough current for your FP5. When this is detected by the charging control on the device a charging process doesn’t even start.
But this doesn’t mean that this charger is broken. It’s probably still usable for other (less demanding) purposes.