connection error invalid mmi code

[donniedoomsday3]

So I've been trying to enter the hidden menu to unlock my verion s4 and it does not work and I keep getting the error connection error or invalid mmi code. Is there anyway around this? Any input would be greatly appreciated

Posted via Android Central App

 

[mhinc]

So I've been trying to enter the hidden menu to unlock my verion s4 and it does not work and I keep getting the error connection error or invalid mmi code. Is there anyway around this? Any input would be greatly appreciated

Posted via Android Central App

Your provider can give you an unlock code, as long as they agree to it, sometimes for a price, or free if you are no longer under contract.