The ZTE Blade Q Lux was an entry-level smartphone from 2015 that came in two distinct hardware versions: a more capable 4G LTE model (MT6752) and an ultra-budget 3G model (MT6572). It is absolutely critical to identify your specific version before flashing, as their firmwares are incompatible. This guide provides the official stock ROMs for both variants, which are essential for unbricking a device, fixing software errors, or performing a complete factory restore.
Important: The two versions of this phone are not compatible. Flashing the wrong firmware will hard brick your device. As MediaTek devices, both require the SP Flash Tool for flashing, and the process will erase all data.
How to Identify Your Device Variant
Before you download anything, you must determine if your phone has the 4G (MT6752) or 3G (MT6572) processor.
- Check Settings: If your phone can turn on, go to Settings > About phone and look for the CPU/Processor information.
- CPU-Z App: If possible, install an app like CPU-Z from the Play Store. It will clearly state “MT6752” or “MT6572”.
- Network Speed: The most obvious difference is that one model supports 4G LTE, and the other is limited to 3G.
Quick Device Specs
ZTE Blade Q Lux (4G)
- Chipset: MediaTek MT6752
- Display: 4.5″ IPS LCD
- OS: Android 4.4.4 (KitKat)
- RAM/Storage: 1GB / 8GB
ZTE Blade Q Lux (3G)
- Chipset: MediaTek MT6572
- Display: 4.5″ IPS LCD
- OS: Android 4.4.2 (KitKat)
- RAM/Storage: 512MB / 4GB
Required Downloads
To flash a MediaTek device, you will need the specific drivers and flashing tool. You can find the downloads for these in our main guide linked below.
- SP Flash Tool
- MediaTek VCOM USB Drivers
Stock ROM (Firmware)
| Variant / Chipset | Android | Type | Download |
|---|---|---|---|
| 4G LTE (MT6752) | 4.4.4 | SP Flash Tool Firmware | Download |
| 3G (MT6572) | 4.4.2 | SP Flash Tool Firmware | Download |
How to Flash the Stock Firmware
Flashing the stock ROM onto your ZTE Blade Q Lux requires a Windows PC and the SP Flash Tool. You must first identify your phone’s exact chipset and download the corresponding firmware. The process involves installing MediaTek drivers and loading the correct scatter.txt file for your variant into the tool before connecting your powered-off phone.
For detailed, step-by-step instructions with screenshots and tool download links, please follow our comprehensive pillar guide: How to Flash Firmware with SP Flash Tool.
Device-Specific Troubleshooting for ZTE Blade Q Lux
- CRITICAL – Flash the Correct Variant ONLY: The 4G (MT6752) and 3G (MT6572) versions are completely different internally. Their scatter files and partitions are incompatible. Flashing the wrong firmware will hard brick your device. Double-check your chipset before you begin.
- Correct Driver Installation: The most common failure point is incorrect drivers. If the tool doesn’t see your phone, you must install the MediaTek VCOM drivers, which often requires you to disable ‘Driver Signature Enforcement’ in Windows first.
- Using the “Boot Key”: To initiate the flash, power the phone off completely. Press and hold the Volume Down button, and while holding it, connect the phone to your PC. The tool should then detect it. If that fails, try the Volume Up button.
- Safer Flashing (Uncheck Preloader): For a safer flashing process, it is recommended to uncheck the `preloader` partition in SP Flash Tool before clicking Download. Flashing an incorrect preloader is the most common cause of a permanently dead phone.
FAQs
Q1. How can I be 100% sure which version of the Blade Q Lux I have?
If the phone works, install the app CPU-Z. It will tell you the exact processor model (MT6752 or MT6572). If the phone is bricked, you may have to check the original box or documentation that came with it.
Q2. What happens if I flash the 4G ROM on my 3G phone?
It will hard brick the device. The partition map (scatter file) and the drivers for the processor are completely different. The phone will likely become totally unresponsive and will be very difficult to recover.
Q3. Will this process erase my data?
Yes. Flashing the stock ROM with SP Flash Tool will perform a full factory reset and completely wipe all personal data, apps, and settings from your device.
Q4. What is a “scatter file”?
The scatter file is a crucial map for MediaTek firmware. It’s a text file that tells SP Flash Tool the name, size, and location of every partition on the device’s storage, ensuring each part of the software is flashed to the correct place.
