iphone4S wireless display gray 5

1. In Settings -->Wireless LAN--> switch can be placed in green. Then you can select the network -- dot other, etc. Ask if you want to join the network placed in green.

2. If it is invalid, turn it off and turn it on, if it still doesn't work, remove the 2 cross nails at the bottom, and push the back cover up to open the phone case. Then look at the lower left corner of the battery There is a Phillips screw, after removing, the metal piece next to it is the battery plug, you can pull out the plug when you get up smoothly, the phone is powered off at this time, after 1-2 minutes, restore and install, it is generally OK.

1.Freeze in the refrigerator.

Most netizens introduced this method, after shutting down, seal your iPhone with a sealed plastic bag to prevent water from entering during freezing, and take it out after 15 minutes to turn it on, and it can be used normally.

2.Pull out the SIM card and reboot.

After shutting down, pull out the SIM card, turn it on after a period of time, and you can successfully lift the wifi limit.

3.Hair dryer method.

Disassemble the back of the iPhone, aim at the upper camera position, and blow it on the high wind and heat with a hair dryer for 10-15 minutes to solve this problem.

This method can basically solve the graying out fault of the iPhone4S wireless connection of the vast majority of customers, and it can be effective for a long time.

If this failure occurs again, you can still use this method to continue to solve it).

4.Press and hold the flash.

Turn on the program flashlight to turn on the LED flash for a long time, so that the back is hot, and there is a certain chance to fix this problem.

Note: If the above methods cannot be solved, please send it to the maintenance department for repair in time.

This can be solved in several ways:

Method 1: Reset settings five times in a row, Settings - General - Cellular Network - Cellular Data Network - Reset Settings *5 - Restart.

Method 2: Shut down - connect the charger to restart automatically - check that the wifi repair is complete.

Method 3: Use iTunes to restore the firmware, i.e. reflash the firmware.

Method 4: Turn on the hot air of the hair dryer and blow it towards the right 1-2 cm of the back camera for 2-3 minutes - check the wifi or restart to check the wifi.

Method 5: Shut down - wrap the whole body with plastic wrap - wrap the newspaper (moisture-proof) - put it in the refrigerator and freeze it for 10-15 minutes - open the newspaper and turn it on through the plastic wrap - look at the wifi module.

PS: If it doesn't work after using all the methods, it may be a virtual soldering of wifi hardware, please find your local Apple repair point for testing and repair.