The Nubia Z17 Mini (model NX569J) is a compact and powerful mid-range smartphone from 2017. It was praised for its premium metal unibody design and its versatile dual 13MP rear camera system, which paired a standard color sensor with a dedicated monochrome sensor for enhanced detail. The device delivered excellent performance for its class, powered by the capable Qualcomm Snapdragon 652/653 processor. This guide provides an official stock ROM, a low-level QFIL / EDL package, designed to unbrick a hard-bricked phone or perform a complete factory restore.
Important: This is an advanced unbricking procedure. This firmware is specifically for the Nubia Z17 Mini (NX569J). The flashing process requires your phone to be in EDL Mode (9008), and the process will erase all data. Please read the troubleshooting section regarding a potential chipset mismatch in the filename.
Quick Device Specs
- Device: Nubia Z17 Mini (NX569J)
- Release year: 2017
- Chipset: Qualcomm Snapdragon 652 / 653
- Display: 5.2″ LTPS IPS LCD, Full HD
- Battery: 2950 mAh
- Original OS: Android 6.0.1 (Marshmallow), Nubia UI 4
Required Downloads
To flash a Qualcomm device in EDL mode, you will need the specific QPST suite and drivers. You can find the downloads for these in our main guide linked below.
- QPST & QFIL Flash Tool
- Qualcomm QDLoader USB Drivers
Unbrick Firmware (QFIL)
| Region / Carrier | Build Date | Type | Download | Chipset |
|---|---|---|---|---|
| Generic / Unspecified | 05-05-2017 | QFIL EDL Unbrick ROM | Download | Qualcomm |
How to Flash the Stock Firmware
Restoring a bricked Nubia Z17 Mini requires a Windows PC and the QFIL tool. The process involves installing the correct Qualcomm drivers, forcing your phone into EDL Mode by holding Volume Up + Down and connecting the USB cable, loading the firehose programmer and XML files from the firmware, and then starting the download.
For a detailed, step-by-step guide with screenshots and tool download links, please follow our comprehensive pillar guide: How to Use QFIL to Flash Qualcomm Devices.
Device-Specific Troubleshooting for Nubia Z17 Mini
- CRITICAL WARNING – Chipset Mismatch in Filename: The provided firmware filename mentions
MSM8952(the code for a Snapdragon 617 processor). However, the Nubia Z17 Mini was commercially released with a much more powerful Snapdragon 652/653 processor. This file may be for a rare regional variant or a prototype. Flashing firmware with the wrong chipset information is extremely risky and can cause a permanent hard brick. Proceed with extreme caution and only if you are absolutely certain this file matches your specific device’s hardware. - “No Port Available” / Driver Issues: If QFIL doesn’t see the “Qualcomm HS-USB QDLoader 9008” port, your drivers are not installed correctly. You must disable Driver Signature Enforcement in Windows before running the driver installer. Reboot your PC after installation and try again.
- Entering EDL Mode: Ensure the phone is completely powered off. Press and hold both Volume Up and Volume Down buttons simultaneously. While holding them, plug the USB cable into the phone. The screen will stay black, but your PC should make a sound, and the port will appear in QFIL. For a completely dead device, hardware test points may be required.
- QFIL “Sahara” or “Firehose” Error: This error points to a communication failure. Use a high-quality USB-C cable, connect directly to a reliable USB 2.0 port on your computer, and ensure no other conflicting mobile drivers are installed.
FAQs
Q1. What is a QFIL / EDL firmware?
QFIL (Qualcomm Flash Image Loader) is a tool used to flash firmware in EDL (Emergency Download) mode. This is a very low-level mode, a step below fastboot, designed to recover Qualcomm devices from a “hard brick” state where they are otherwise unresponsive.
Q2. What was the main appeal of the Z17 Mini’s camera?
It featured a dual-camera system that paired a standard RGB (color) sensor with a dedicated monochrome (black and white) sensor. This allowed the phone to capture more light and detail, resulting in sharper and cleaner photos, especially in black and white mode.
Q3. Will this process erase my data?
Yes. A QFIL flash is a complete factory restore that erases all user data from the phone’s internal storage.
Q4. Do I need an unlocked bootloader to use this method?
No. EDL mode is a low-level engineering mode that bypasses the bootloader. It can be used to restore a phone regardless of whether its bootloader is locked or unlocked.
