The most common reason is poor contact, when the oppo phone does not charge, try to re-plug the charger and the phone connection.
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In addition, reconnect still can not charge, please change another mobile phone charger to try, you can also try to connect oppo mobile phone to the computer to try, if the problem is solved, then it should be the charger problem, if not solved, then the problem may be in oppo, it is recommended to contact oppo official customer service or after-sales!
Can't you charge your phone?
First of all, see if your charger is the original charger, the charger is not connected to the right, again, because the mobile phone battery has been damaged, resulting in normal charging and discharging, this time it is necessary to check whether the battery needs to be replaced with a new battery.