On some models, dialing *#*#717717#*#* or ##3424# opens the diagnostic port. Step 2: Backup the EFS
Select the assigned to your phone (check Device Manager). Enter your original IMEI into the provided fields. Click Start or Write . qualcomm imei repair tool without box
This is perhaps the most reliable method for modern Snapdragon devices. It involves backing up, editing, and restoring a .qcn file. On some models, dialing *#*#717717#*#* or ##3424# opens
