iPhone4swifi is broken, how to solve it if it can t be opened?

iPhone4swi-fi switch gray five solutions.

Guess the cause of the failure:

Due to the failure of the Wi-Fi switch to gray, it currently only occurs on the two devices of iphone4s and iphone4, and the system version is. However, devices such as iPhone5 and iPhone3GS using the same system have no fault reports, so the preliminary judgment is due to the change of Wi-Fi wireless settings after the iOS6 upgrade.

The main manifestation of this fault is that the Wi-Fi switch is grayed out and the Wi-Fi signal cannot be turned on, even if the Wi-Fi switch is restored after the phone is left for a while, the Wi-Fi wireless signal becomes very poor.

Solution: 1. Tap Settings > General >> Restore > Restore Network Settings to restore network settings.

2. In the shutdown state, pull out the SIM card and turn it on. In general, the Wi-Fi option can successfully remove the gray restriction.

3. Throw the iphone4s or iphone4 into the refrigerator and freeze for 10 to 15 minutes, which can solve this problem.

4. Turn on the LED flash on the back of the iphone4s or iphone4 for a long time to make the back hot, and there is a certain chance to fix this problem.

5. Disassemble the back of the iPhone4 4S, aim at the reverse position of the upper camera, and use a hair dryer to blow on high wind and high heat for 10-15 minutes to solve this problem.

First of all, you have to decide whether the wifi module is damaged, if there is nothing you can do, you can only change the motherboard, if you are not sure, flash the latest ios system to solve it.

If your iPhone can't connect to the previously set wifi network, it may be that the wifi network has been changed to password, so you can't log in anymore.

If the password of this wifi network has not been changed, but it just can't be connected, we can enter this wifi network:

That is, when opening "Settings", we click on "Wi-Fi".

Then you will enter the wireless LAN management window.

In the Wi-Fi management window, we click on the wifi where we want to change the password, click on it.

After clicking, in the new window we click on "Ignore this network".

Ignore this network.

After clicking "Ignore this network", a prompt pops up, here we choose "Ignore".

After clicking on Ignore, we go back to the WiFi management window, find the WiFi account that we just ignored, and click on it.

Then, you will enter a new window to enter the password, here we enter the password, that is, change the password.

This can be repaired, because if you can't open it with wifi, because there is a problem with the wifi module or the motherboard, you can take it for repair, and this is a very easy problem.