Hi all,
same issue here :/.
Got the message and tried to clean the USB port. I noticed some kind of copper corrosion at one of the USB lanes, so I figured it would be best to replace the USB port.
After doing that today, there was no change in behavior. Still got the message and now found this thread. The symptoms seem to be the same. Doesn’t charge when turned on and extremely slow charging when turned off.
For everybody who really depends on his/her phone.
One possibility to charge your battery until you are able to send it in for repairs is to charge the battery with a universal Li-Ion battery charger. There is a thread in this forum where you can find more information about which chargers are suitable.
But do this at your own risk I only know the basics of electronics so I would just assume a charger with to much power directly connected to your battery would burn your house down. As far as I understand it, it should be safe as long as the charger is for Li-Ion and has a maximum output voltage that is equal to or lower than your peak battery voltage.
Here the thread: