Then continue to install the Super Snow LTE Activator (National Bank Beta) in the Super Snow Source. After successful installation, the operator version is 15.7, and then you can wait patiently for a while. Under the right conditions, 4G will appear now. After 4G appears, enter Cydia to uninstall the Super Snow LTE Activator (Bank of China beta). After uninstalling the Super Snow LTE Activator (Bank of China beta), the operator version should be 6544.
Step 2: Go to the directory of System/Library/Carrier Bundles/iPhone and delete all the sub-files in Cmcc_cn.bundle (actually, there is no need to back up here, because after you use the Super Snow LTE activator, there are only four things in it, and I will upload the original file later).
Step 3: Go into the directory of System/Library/Carrier Bundles/iPhone and copy the files under Carrierlab.bundle to Cmcc_cn.bundle Many people will make mistakes in this step. The correct way is to export all the files in the Carrierlab.bundle folder to the desktop. Then open Cmcc_cn.bundle, and drag all the files in the Carrierlab.bundle folder on the desktop directly into CMCC _ cn.bundle..
Step 4: Restore the network settings. After recovery and restart, the operator will use English. At this time, go to Settings-General-about this machine, and update the operator to 16. 1 (if you can't update, just click this machine several times and go back and forth, understand? It will be normal after the update. ) 4G will appear automatically after the update. If it does not appear, see below.
After the update, enter the search signal directly, and then 4G appears. I believe many friends in front are like me. If it doesn't appear, it may be that your base station is not deployed, or there may be a problem with the replacement file. You'd better change your mobile phone after brushing it. Of course, it's up to you. You can also use the flowmeter (how to install the flowmeter, please search for it yourself) to quickly restore 4G. . . . After 4G appears, make a phone call to see how the call quality is! The call quality here is much better than that with super snow, and there is basically no noise.