This is GENERAL flashable zip to restore your IMEI!! YOU STILL NEED YOUR IMEI FILES.
-Should work on any device mediatek like UMI, XIAOMI, ZINGZONE, BQ, DODGEE, JIAYU,ETC..
NOTE: YOU MUST HAVE A ROOTED MTK SMARTHONE BEFORE COPY THE IMEI FILES, IF NOT THIS METHOD DONT WORK.
1-Before flashing a custom rom or other, backup your IMEI files from folder in :
data/nvram/md/NVRAM/NVD_IMEI --»COPY ALL FILES to computer.
2-step, click on right button in your mouse and open with winrar. click on data folder until this folder below.
3-click on your IMEI files and drag to inside this folder. it should look like (B) image.
4-close the folder and put in your micro SD card.
5-flash with recovery and reboot.