Fix an Android device that won't charge or turn on - Google Help
Connect your phone to your computer's USB or USB-C port with a cable that works. Wait about 10–15 minutes. Disconnect the cable from your phone, then reconnect it within 10 seconds. If you see a battery icon within one minute, your phone is powered off and charging. Charge your phone for at least 30 minutes.
Fix an Android device that's restarting or crashing
Restarting in safe mode varies by phone. To learn how to restart your phone in safe mode, visit your manufacturer’s support site. Step 2: Check if the problem goes away. Check if the problem goes away. If it does, an app is likely causing your problem. Go to the next step. If the problem does not go away, skip to Advanced troubleshooting.
Why won't my UMX U693CL charge? - Android Community
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My umx model no. U683CL went dead, won't charge, red LED light …
2020年2月27日 · This help content & information General Help Center experience. Search. Clear search
I have a umx phone u673c and it comes on for second cuts off on …
2020年2月13日 · This help content & information General Help Center experience. Search. Clear search
Fix a screen that isn't working right on Android - Google Help
On most phones, press your phone's power button for about 30 seconds, or until your phone restarts. On the screen, you might need to tap Restart . Tip: After you restart, if your touchscreen is still completely unresponsive, learn how to reset your phone to factory settings (below).
Fix an Android device that freezes or won't respond
If your phone doesn't respond or stays blank, you can use the your phone's buttons to trigger a factory data reset. If an app that you downloaded caused the issue and you reinstall that app, the problem could come back.
Find problem apps by rebooting to safe mode on Android
Tip: To help identify which apps are causing problems, make a list of the apps you force stop. Related resources. Fix an Android app that isn't working; Speed up a slow phone; Troubleshoot a phone that restarts on its own; Troubleshoot a phone that freezes
Fix problems sending, receiving, or connecting to Google Messages
Fix problems sending or receiving messages from specific contacts. Delete the contact and add it again. Check if you blocked them. Verify that their phone number is correct. Check if you need to specify a country code (e.g. +1 for US numbers). Fix problems sending MMS messages. Ensure that you have a data connection.
Android Help - Google Help
Official Android Help Center where you can find tips and tutorials on using Android and other answers to frequently asked questions.