Answer to "My doogee s60 turns off and on randonmly"It happens with mine every 3 days up to 3 times a day. That’s a ‘normal behavior’ of that phone. Additionally to the self-restart the exposed phone keys can also lead to ‘pocket restarts’ caused by unintended ‘holding’ of the power button. Maybe updating to Oreo will help, but there will not be an official update so update on your own risk.
Answer to "Doogee S60 not charging"I had the same issue. Probably an issue with the USB connector of the mobile phone. I replaced the loading PCB with a new 7USD one. Works perfectly except that the microphone doesn’t work in handsfree mode anymore. For rework you need to solder the speaker from old PCB to new one. And you will need suitable sealing material, since the sealing of the original PCB can’t be removed.