Android China Phone IMEI Change !!
[ No Box , No Computer]

Method 1:

Step 1 > Put double sim in phone on the set.

Step 2 > After phone power on dial *#*#3646633#*#*.

Step 3 > A menu will apper on screen , then select GPRS.

Step 4 > To change imei 1 select 1ST PDP and input new imei and select ok.

Step 5 > After this action order first select "Attached" second
select "Reattached" and all will be done.

P.s.if need to change second imei just follow the same steps , only the
difference is on step 4 select 2ND PDP and that's it

Method 2:
Step 1.Power on the set.

Step 2.Open Playstore and download Mobile Uncle.

Step 3.After install open the app And click on
Engineer mode
Engineer mode(MTK)
CDS Information
Radio Information
Phone 1
SEND AT Comand
Restart phone.
thats it.