Apple wifi machine into the card machine method is as follows:
one
Verify that Airplane Mode is off. Restart iOS device Update iOS device Tap Settings > General Purpose > Reduction > Restore Network Settings to restore network Settings. Restore your iOS device in iTunes. If you can't turn Wi-Fi or Bluetooth on or off after trying the steps above, contact Apple or your wireless carrier for additional assistance.
two
How to remove the SIM card when the device is powered off: Remove the SIM card and start the device. Under normal circumstances, the Wi-Fi option can successfully remove the gray limit, but some users have reflected that after this method is repaired, the wireless signal becomes very poor and extremely unstable.
three
By using a flashlight application and other methods, the LED flash behind the iPhone4S or iPhone4 is turned on for a long time, so that the back is hot, there is a certain chance to fix this problem.
Apple WIFI version can not be changed to card version Oh,
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The WiFi version only supports wireless Internet access, and the data WiFi supports mobile phone card Internet access and wireless Internet access.
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wifi version can only connect to WiFi, no card. When inserting a cellular card, use the card pin to eject the SIM card tray, insert the SIM card, and then insert the ipad.
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Apple WIFI version of course can not use the phone card, otherwise Apple would not need to distinguish between different versions. The next time you buy an electronic device, be sure to choose it according to your actual needs.
Some foreign operators of Apple will have a part of the shoe number machine, that is, there is no card slot on the hardware, in this case, the hardware does not support the function of the card, and can only use WiFi for networking.
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