I Will explain how to change imei on some andorid
china sets only using your fingers.. No Box No cable
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
