ZTE Nubia Red Magic 6S Pro

Nubia Red Magic 6S Pro (NX669J-S) Unbrick Firmware (QFIL)

The Nubia Red Magic 6S Pro (model NX669J-S) is a flagship-tier gaming smartphone from 2021, powered by the potent Qualcomm Snapdragon 888+ 5G chipset. This guide provides a low-level “unbrick” firmware, which is a specialized tool designed to revive a device from a hard brick (e.g., completely dead, no response, not booting to fastboot) by directly flashing its core partitions.

CRUCIAL WARNING: For Advanced Users Only!

This is not a standard software update. This is a high-risk, advanced unbrick procedure.

  • EDL Mode via Test Points: To use this file on a hard-bricked device, you must force it into Emergency Download (EDL) Mode. This will likely require you to open the phone’s back cover and short two specific test points on the motherboard.
  • Risk of Permanent Damage: Performing this process incorrectly can permanently damage your phone. Proceed at your own risk.
  • Regional Variants: Flashing this unbrick file on a different regional variant (e.g., a Chinese file on a Global phone) may revive the device but could cause network (IMEI/baseband) issues.

Important Note: This QFIL process is designed as a last resort for a completely unresponsive device. It will erase all data. If your phone can still boot to fastboot, you should use a standard fastboot ROM instead of this method.


📱 Quick Device Specifications

Device
Nubia Red Magic 6S Pro (NX669J-S)
Release Year
2021
Chipset
Qualcomm Snapdragon 888+ 5G
Display
6.8″ AMOLED, 165Hz
Battery
5050 mAh (Global) / 4500 mAh (China)
OS (Launch)
Android 11 (Redmagic OS 4.5)

🛠 Required Tools & Downloads

File / Tool Download Link
QPST (Contains QFIL) Download Tool
Qualcomm QDLoader Drivers Download Drivers

⬇️ Nubia Red Magic 6S Pro Unbrick Firmware

Model Type Chipset Download Size
NX669J-S QFIL Unbrick File Snapdragon 888+ Google Drive ~1.9 GB

⚡ Quick Flashing Guide

  1. Download and install the Qualcomm 9008 drivers. Extract the firmware (Redmagic_6S_Pro_Unbrick...QFIL.zip) and the QPST Tool.
  2. Force the device into EDL Mode. For a hard-bricked phone, this means opening the back panel and finding the two “test points” on the motherboard.
  3. Connect the USB cable to your PC. Then, while shorting the two test points with a pair of metal tweezers, plug the USB cable into your phone.
  4. Launch QFIL. The tool should now show “Qualcomm HS-USB QDLoader 9008” on a COM port.
  5. Select Flat Build. Browse for the “Programmer Path” and select the prog_firehose_...mbn file. Click “Load XML” and select the rawprogram...xml and then patch...xml files.
  6. Click the “Download” button to begin flashing. Disconnect the phone once it shows “Download Succeeded.”

For a more detailed walkthrough of the QFIL process, please refer to our full guide:
👉 Full Tutorial: How to Flash Qualcomm Firmware with QFIL


❓ Frequently Asked Questions (FAQs)

Q1. What are test points and how do I find them for my Red Magic 6S Pro?
Test points are two specific exposed metal contacts on the phone’s main circuit board. Briefly connecting them while plugging in the USB cable bypasses the bootloader and forces the chipset directly into the low-level EDL flashing mode. You will need to search online for “Red Magic 6S Pro test point location” to find images or diagrams showing exactly which two points to connect.
Q2. My phone is the Global version. Can I use this unbrick file?
It is impossible to tell from the filename which region this file is for. Using an unbrick file from a different region (e.g., Chinese firmware on a Global device) is extremely risky. While it may revive a dead phone, it can flash the wrong modem and baseband partitions, resulting in no network signal or Wi-Fi. This should only be attempted as a final resort.
Q3. After flashing, my phone only boots to Fastboot mode. Is it fixed?
Partially, yes! This is a common and positive outcome. It means the unbrick file has successfully restored the bootloader and the device is no longer hard-bricked. You now need to download a full official fastboot ROM for your specific model and region and flash it via the fastboot interface to install the complete operating system.

🔧 Device-Specific Troubleshooting

  • Device Not Detected in QFIL (No Port): On a hard-bricked Red Magic 6S Pro, this is the main challenge. You MUST use the test point method. If QFIL still doesn’t see the device, the issue is with the drivers on your PC. Uninstall all Qualcomm-related drivers and reinstall the correct QDLoader 9008 drivers, disabling Windows Driver Signature Enforcement if necessary.
  • QFIL “Sahara” or “Firehose” Errors: These are communication errors between the PC and the phone’s chipset. A “Sahara” error often points to a driver or USB port issue. A “Firehose” error can mean the programmer file is not correctly signed or accepted by the chipset’s security. Ensure you are using the exact firehose file included in this package.
  • Storage Type Mismatch Error: This error can occur if QFIL is not correctly configured for the phone’s UFS storage. The XML files in the firmware package should automatically handle this, but if an error occurs, check the “Storage Type” in QFIL’s configuration menu and ensure it is set to UFS.
  • Flashing Succeeds But Phone is Still Dead: If the flash completes but the phone shows no signs of life, it likely indicates a hardware failure beyond a software brick, such as a dead eMMC/UFS chip or a power management IC (PMIC) failure.

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