Never flash a raw donor QCN file without changing the IMEIs first, as this will clone someone else's hardware identifiers to your phone, resulting in network blocks.
Your OnePlus 7T Pro must have an unlocked bootloader.
Settings required to connect to 2G, 3G, and 4G LTE networks. oneplus 7t pro qcn file
Disconnect the USB cable. Force reboot the OnePlus 7T Pro (hold Power + Volume Down for 15 seconds). Dial *#06# . Your original IMEI numbers should appear. Network bars should return within 30 seconds.
The baseband version is missing in the "About Phone" settings menu. Never flash a raw donor QCN file without
Check the box for (if applicable). Click Start and wait for the progress bar to reach 100%. Step 5: Final Reboot and Verification
What is the of your OnePlus 7T Pro? (e.g., HD1910, HD1913) Disconnect the USB cable
Prevention is better than cure. If your OnePlus 7T Pro is currently working fine, stop reading and back up your QCN immediately.
Reboot your device. The baseband will temporarily show as unknown, and the IMEI will be blank. This is expected. Step 4: Flash the Repaired QCN via QPST