How To Tweak Your Stubborn Tecno Android Phones

How to tweak your tecno y3,y4,y6 which you are unable to tweak with the previous method posted here on cheatnaija. A friend of mine recently told me his new tecno y4 is saying command not in userbuild whenever he clicked send at command.
                     HERE COMES THE SOLUTION
JUST SCROLL BACK TO "AT AGMR=" AND PUT SPACE AT THE BACK OF PLUS( ) I MEAN YOU HAVE AT AGMR="" then type your imei and send at command and you are good to go!
This is the simplest method ever!