If you encounter problems with Apple 8pwifi gray, you can try the following solutions:
1. Restart the power supply: Press and hold the power button, select Shutdown or restart, and then restart the power supply.
2. Update software: Go to Settings - General - Software Update to update the latest version of iOS.
3. Reset network Settings: Go to Settings - General - Reset - reset network Settings, enter the password and confirm.
4. Restore factory Settings: Go to Settings - General - reset - restore factory Settings, enter the password and confirm, pay attention to backup data.
5. Check the hardware: If the above steps still do not solve the problem, it is recommended to go to the Apple Store or authorized repair center for check and repair.
This can only repair the motherboard, this is caused by the damage of the wifi module on the motherboard, so if you want to solve it thoroughly, you can only go to the official after-sales replacement of the motherboard, or go to the repair shop to replace the wifi module.