1. Go to play store and install Mobileuncle MTK tool if you don’t have it
2. Open the mobile uncle tool and scroll to Engineering mode (MTK) and click it.
3. Click on CDS information
4. Click the Radio information and you will get phone 1 and phone 2. Depending on the sim imei you wish to change, phone 1 is sim 1 and phone 2 is sim 2
5. To change sim 1 imei number to blackberry, touch phone 1 and in the popup, touch the AT+
6. Once you touch the Key board will pop up. In the key board you type any single letter and cancel only the letter you have type. Immediately you can notice the scribes that is required for you It looks like AT+EGMR=1,7""
7. Click the first row and after 7 you can notice the simple "" delete the last inverted comma and type the Blackberry imei number you generated
8. Verify the typed blackberry imei numbers, then close the inverted commas "
9. Click the SEND AT COMMAND
10. Once the pop up display indicates AT command successfully send.
11. Reboot your phone and enjoy.
12. IF YOU WANT TO CHANGE BACK YOUR IMEI TO THE ORIGINAL ONE, JUST REPEAT THE PROCEDURE USING YOUR REAL IMEI