The problem of mobile phone not charging can be caused by a variety of reasons, here are some possible reasons and corresponding solutions::
Check that the charger and data cable are connected correctly: Make sure that the charger's socket and data cable plug are plugged in tightly and there is no loosening. If the plug is loose, it may cause charging interruption or failure to charge.
Check if the output power of the charger matches the phone: Different brands and models of phones may require different output power. If you use a charger that doesn't match, it may cause charging issues. Please check your phone's manual to make sure you are using the correct charger.
Check if your phone is charging: During charging, your phone should stay on with a charge percentage. If your phone is turned off, it may not be able to charge. Try long pressing the power button on your phone to turn it on before charging.
Check if your phone's battery has aged: Your phone's battery life will gradually decrease over time. If the battery is aging, it may affect the charging performance. Try using your phone's built-in battery optimization tool or replace it with a new one.
Check your phone for software or hardware issues: If your phone has a software issue or hardware malfunction, it may not charge. Please try to restart the phone or restore the factory settings, if the problem persists, it is recommended to contact the phone manufacturer or professional repairers for inspection and repair.
Summary: The problem of mobile phones not charging can be caused by a variety of reasons, which need to be analyzed and dealt with on a case-by-case basis. When dealing with charging issues, it is recommended to start with simple aspects, such as checking whether the charger and data cable are connected correctly, whether the phone is in a charging state, etc. If the problem persists, it may be necessary to further check for issues with aspects such as your phone's battery, software, or hardware, and seek help from a professional.