In This Video I will Show you how to fix Samsung j730f j7 pro screen sleep mode dead screen after screen lock.. No Light after screen lock.. Back Option Keys, Home Keys and Option Buttons. Charging Not Showing.
If your Samsung J7 Pro (J730F) screen is black after locking the screen, it could be due to several reasons, including software issues or hardware problems. Here are some steps you can try to troubleshoot and potentially resolve the issue:
1. **Force Restart**: Sometimes, a force restart can help if the phone's software is frozen. To force restart the Samsung J7 Pro, press and hold the Volume Down button and the Power button simultaneously for about 10 seconds until the phone restarts.
2. **Charge Your Phone**: It's possible that your phone's battery is completely drained. Connect it to a charger and leave it for a while to ensure it has enough power to turn on.
3. **Check for Display Issues**:
- Make sure there is no physical damage to the screen or the phone.
- Inspect for any liquid damage. If your phone has been exposed to moisture, it may cause screen issues.
- Test the screen in different lighting conditions. It's possible that the screen brightness is set to the lowest level.
4. **Safe Mode**: Boot your phone into Safe Mode to check if a third-party app is causing the issue. If the screen works in Safe Mode, uninstall recently installed apps one by one to identify the problematic app.
5. **Wipe Cache Partition**:
- Turn off the phone.
- Press and hold the Volume Up button, the Bixby button (if available), and the Power button simultaneously.
- Release the buttons when the Android logo appears.
- Use the volume buttons to navigate to "Wipe Cache Partition" and use the Power button to select it.
- After the process is complete, select "Reboot System Now."
6. **Factory Reset**: If none of the above steps work, you may need to perform a factory reset. This will erase all data on your phone, so make sure to back up your data if possible.
- Turn off the phone.
- Press and hold the Volume Up button, the Bixby button (if available), and the Power button simultaneously.
- Release the buttons when the Android logo appears.
- Use the volume buttons to navigate to "Wipe Data/Factory Reset" and use the Power button to select it.
- Confirm the action and wait for the process to complete.
- Select "Reboot System Now."
7. **Visit a Service Center**: If the screen remains black after trying all these steps, there may be a hardware issue with your device. In this case, it's best to take your Samsung J7 Pro to an authorized Samsung service center for professional diagnosis and repair.
Please be aware that attempting to repair hardware issues on your own can lead to further damage and void warranties, so it's advisable to seek professional assistance if the problem persists.
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