This is a tutorial on how to bypass iCloud on iPad 4 3G, 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 2 since this is a hardware method.
Video made by How2Tech
Disconnect the battery and take out the motherboard.
On the iPad 4 3G Model A1459 (GSM) you must remove the resistor r1205 and for the Model iPad 4 3G A1460 (CDMA) remove resistor r1204.
Connect your iPad to itunes
iPad will automatically enter in DFU mode.
You must restore your iPad using iPad 4 wifi model firmware and follow the steps to activate it.
When successfully done, turn off the automatic firmware update.
As mentioned before this instructions are only for iPad 4 with 3G module, Model A1459 – GSM. Model A1460 – CDMA.