Every individual smartphone must retain its original, unique International Mobile Equipment Identity (IMEI) number to legally register on cellular towers. Overwriting your phone with someone else's raw QCN data will duplicate their hardware identity, causing permanent cellular blockages.
Fixes issues where the phone stays on "Emergency Calls Only" or cannot switch between 2G, 3G, and LTE. How to Use a OnePlus 7T Pro QCN File
. For the OnePlus 7T Pro, this file is essential for repairing "No Service" issues or restoring lost network connectivity after a corrupted flash. Key Technical Aspects of OnePlus 7T Pro QCN