The release of android 6.0 marshmallow brought about a new and stronger security patch by google, changing of IMEI on MTK Tecno devices running android 6.0 Marshmallow has become a very hard thing to do. before reading my post today, i know you must have tried the old ways which includes the old MTK engineering mode apk and the mobile uncle apk, well, I am glad to tell you that you have come to the right place because an upgrade on googles security patch has led to an upgrade on our software's as well, so changing of IMEI on android 6.0 marshmallow is only possible with the MTK Engineering Mode Plus. This works on the new Tecno phantom 6 and 6+, Tecno C9, Tecno C7 and every other MTK device running android 6.0 marshmallow.
how to Change IMEI number on MTK Tecno devices running android 6.0 marshmallow
1. First before we begin, Download MTK Engineer Mode Plus from this link
2. If download is successful, install and launch the application, as shown on the screenshot below select phone information.
3. you will be taken to the next phase, where you have to select the SIM you would be changing IMEI for, if it is for SIM1 then choose Phone 1 and if it is for SIM2 then choose Phone 2
4. lets say you are changing the IMEI of SIM1, then all you have to do is tap on phone 1 and you will see an empty space where you can make your input after the "+" sign type any alphabet like "E" and you will see something like one in the screenshot below.
5. If you are changing the one for sim1 select the first one with AT+EGMR=1,7,"PUT YOUR IMEI IN HERE " after entering your IMEI within ("") give a space after AT(SPACE)+EGMR...
6. after which tap on send at command and reboot your device OR toggle off and on the airplane mode while on the same screen.