This is a tutorial on how to bypass iCloud on iPad 3 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 3 since this is a hardware method.
Video made by ETrade Supply
Warning! Be careful. If you are unsure of your skills, entrust this work to professionals.
On the iPad 3 3G Model A1430 (GSM) you must remove the resistor r1204, and for the Model iPad 3 3G A1403 (CDMA) remove resistor r1204 and r1205.
Connect your iPad to itunes.
iPad will automatically enter in DFU mode.
You must restore your iPad using iPad 3 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 3 with 3G module, Model A1430 – GSM. Model A1403 – CDMA.