Download OnePlus 6T QCN and NVRAM backup from RomWala. Used for repairing null IMEI- unknown baseband- network issues- and RF calibration. Restore using QPST or MSM Download Tool. Direct link below. ...
| Description | Complete backup file for OnePlus 6T (fajita) including QCN and NVRAM data from RomWala. Used for repairing null IMEI- unknown baseband- network issues- Wi-Fi problems- and restoring RF calibration. Restore using QPST or MSM Download Tool in DIAG/EDL mode. |
| Device Name | OnePlus 6T |
| Brand | OnePlus |
| Model Numbers | A6010, A6013 |
| Codename | fajita |
| Chipset | Qualcomm SDM845 Snapdragon 845 |
| Chipset Manufacturing Process | 10nm |
| CPU | Octa-core (4x2.8GHz Kryo 385 Gold + 4x1.8GHz Kryo 385 Silver) |
| GPU | Adreno 630 |
| RAM Options | 6GB-8GB LPDDR4X |
| Storage Options | 128GB-256GB UFS 2.1 |
| Expandable Storage | No |
| Battery Capacity | 3700mAh non-removable |
| Charging Support | 20W fast charging |
| Display | 6.41 inches AMOLED |
| Display Resolution | 1080 x 2340 pixels |
| Display Refresh Rate | 60Hz |
| OS | OxygenOS 9-11 based on Android 9-11 |
| Rear Camera | 16MP + 20MP |
| Front Camera | 16MP |
| Fingerprint | In-display optical |
| Network | 4G LTE Dual SIM |
| What is Included | QCN: Qualcomm Calibration Network - contains RF calibration, IMEI, network parameters NVRAM: Non-Volatile RAM - stores device configuration, MAC addresses, Bluetooth address |
| Use Cases | Fix baseband unknown after flashing, Restore null IMEI, Repair network connectivity issues, Fix Wi-Fi and Bluetooth problems, Recover corrupted NV data, Resolve 'No Service' errors |
| Compatible Tools | QPST (Qualcomm Product Support Tools), QFIL, MSM Download Tool, Octoplus Box, Chimera Tool |
| How to Enable DIAG Mode on OnePlus 6T | Method 1 - Dialer Code: Dial *#*#717717#*#* or *#*#3646633#*#* Method 2 - ADB Command: adb shell setprop sys.usb.config diag,adb Method 3 - Root Method: Use root file manager to enable DIAG mode Method 4 - Fastboot: fastboot oem diag enable |
| How to Enter EDL Mode | Method 1 - Key Combo: Power off, press and hold Volume Up + Volume Down, connect USB cable Method 2 - ADB Reboot: adb reboot edl Method 3 - Fastboot: fastboot reboot edl Method 4 - Test Points: Short test points on motherboard |
| How to Restore Using QFIL | Step 1: Enable USB Debugging and DIAG mode or enter EDL mode Step 2: Open Device Manager - check Qualcomm HS-USB Diagnostics port (9091/9090) or EDL port (9008) Step 3: Launch QFIL as administrator Step 4: Click 'Select Port' and choose the COM port Step 5: Navigate to Tools > QCN Backup/Restore Step 6: Select 'Restore QCN' option Step 7: Browse and select the QCN file from backup Step 8: Click 'Restore' button Step 9: Wait for 'Programming Successful' message Step 10: Disconnect device and reboot |
| How to Restore Using MSM Download Tool | Step 1: Extract MSM Download Tool from backup package Step 2: Install Qualcomm drivers if not installed Step 3: Launch MSM Download Tool as administrator Step 4: Enter device in EDL mode Step 5: Click 'Start' or 'Enum' to detect device Step 6: Click 'Start All' button to begin flashing Step 7: Wait for completion - device will reboot Step 8: Set up device and check IMEI |
| How to Write IMEI After Restore (If Needed) | Method 1 - Tool: Use Octoplus/Chimera Tool to write IMEI Method 2 - ADB: Use writeimei tool via ADB (requires root) Method 3 - QXDM: Use QXDM professional tool for Qualcomm chipsets |
| PreRequisites | 70 percent battery, Original USB cable, Qualcomm USB drivers, QPST/QFIL/MSM Tool, Windows PC, Backup original data before restore |
| Advantages | Restore lost IMEI numbers, Fix baseband unknown after flashing, Repair network connectivity issues, Recover RF calibration data, Fix Wi-Fi and Bluetooth problems, Complete device backup |
| Requirements | Qualcomm drivers, QPST/QFIL/MSM Download Tool, Windows PC, USB cable, DIAG/EDL mode, Backup before restore |
| Warnings | Use on OnePlus 6T fajita only, Not for OnePlus 6 (enchilada), Restoring incorrect files can brick device, Backup original data first, IMEI numbers must match device, IMEI modification laws apply, All operations at your own risk |
| Troubleshooting | Device not detected - reinstall Qualcomm drivers, DIAG mode not working - try EDL mode, Restore fails - try different USB cable/port, QFIL error - use MSM Download Tool instead, IMEI still null - write IMEI manually using tool, Baseband unknown - reflash full firmware via MSM Tool |
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