The failure to operate a mobile phone may be caused by a number of factors, including the following common solutions and steps:
1. Examination of battery capacity:
Use original chargers and data lines to insert power chargers for at least 30 minutes。
To confirm whether chargers and data lines are working, attempts can be made to replace other chargers and data lines。
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2. Forced restart:
For iphone: hold down the power key and the lower volume key (iphone 7 and above) or the power key and the home key (iphone 6 and below) for more than 10 seconds at the same time until the apple sign is seen。
For android mobile phones: hold down power and volume down for more than 10 seconds at the same time until you see a brand sign。
3. Check screen questions:
To confirm whether the screen is damaged, you can try to connect to an external monitor (if supported)。
Watch if there is a light on the back, if possible on the screen。
4. Access to recovery:
For iphone: connect to the computer, open the itunes, hold down the power key and the lower volume key (iphone 7 and above) or the power key and the home key (iphone 6 and below) until you see the recovery mode interface。
For android mobile phones: hold down the power and volume keys, and hold down until you enter recovery mode, choosing " wipe cache part " or " fact reset " 。
5. Examination of hardware issues:
Checking for physical damage such as water and fall。
If there is experience with dismantling, the back covers can be opened to check whether the battery connection is loose and the main plate is clearly damaged。
6. Software issues:
Attempts are made to use official tools such as itunes (iphone) or odin (samsung)。
Identification of problems caused by failed or incompatible applications for system updating。
7. Professional maintenance:
If none of the above methods are valid, it is recommended that they be sent to a professional maintenance shop for further testing and maintenance。
Note: ensure that critical data are backed up before any operation is undertaken to prevent data loss。
