Edited by viki4vikram at 2016-11-06 10:21

Hi,

1) MX6 and some meizu phones CDS Information option is not active. Active link below to download and install the application.

https://drive.google.com/file/d/0B-LbCrrz8H_CQTQwV3M2Y2x6UGs/view

2)Open dialer and dial *#*#3646633#*#* (MTK Engineer Mode)
3)Now go Connectivity-> CDS Information->Radio Information
4)Phone 1 Select and At "AT+" type in

AT+EGMR= 1,7,"your_IMEI" ( put spaces between = and 1 )

Click on "SEND AT COMMAND" button below

5)For the secondary SIM tap Phone 2 and type this commnad

AT+EGMR= 1,10,"your_IMEI" ( put spaces between = and 1 )

Click on "SEND AT COMMAND" button below a second time Reboot Phone

P.S : Proceed with caution. It is recomended to backup / save your IMEI before trying this.