This is a tutorial on how to bypass iCloud on iPad Air 2 4G, after following this guide your iPad cellular shouldn’t work but wifi, bluethoot and gps will remain working.
First thing is to disassemble your locked iPad Air 2 since this is a hardware method.
Video made by Fixez.com
Disconnect the battery and take out the motherboard.
On the iPad Air 2 4G A1566 & A1567 you must make jumper on position 1.
Connect your iPad to itunes
iPad will automatically enter in DFU mode.
You must restore your iPad using iPad Air 2 wifi model firmware and follow the steps to activate it.
When successfully done, turn off the automatic firmware update.
Enabling Wifi and Bluetooth on iOS 9
Download this file and extract it : ipad_air_2_LTE_bypass
Install iOS 9 on your iPad Air 2
Jailbreak it and install cydia
Connect iPad to internet trough Bluetooth on phone
Download and install iFile & Afc2add from cydia
Open iFile for your iPad
Go to “user/share/firmware/wifi/c-4350__s-C2/”
Backup all files on this directory and replace them by files from archive.
Reload your iPad Air 2
As mentioned before this instructions are only for iPad Air 2 4G model A1566 & A1567 .