Qualcomm IMEI Tool
How You Can Easily Fix Your imei And MEID In Your Redmi 4X(Or May Be in Any Other Qualcomm Powered Android Phone) Dial *#*#13491#*#* To Enable Usb Diag Mode in Your Redmi 4X If You Installed Your Drivers Properly You See The Ports Under Device Manager Than Download And Open The Following Tool And Select Your Port Number And Write Your Imei And MEID Number And Click Write1 If Everything Goes ok Than You Will See A Green Colored "Pass" after That Just Reboot Your Mobile To Repair Your Imei 2 And MEID You Must Modify The Setting Of The Tool for That Click Setting And Than Uncheck *Imei2 Same As Imei1* And Check *Write MEID/ESN
Password to open Settings: ustest
Note: This Is Only For imei Repair Please Don't Change Your Imei Number Because in Some Countries Changing imei Number Is illegal