The ZTE V5 Pro (model N939SC) is a well-equipped mid-range smartphone from 2015 that was sold under several names, including the ZTE Blade A711 and Blade X9. It offered a premium look and feel with its durable metal body, a fast rear-mounted fingerprint scanner, and a large 5.5-inch Full HD display. The device was powered by the octa-core Qualcomm Snapdragon 615 processor. This guide provides the official China 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 ZTE V5 Pro (N939SC) China variant and does not contain Google Play Services. The process will erase all data and requires your phone to be in EDL Mode (9008).
Quick Device Specs
- Device: ZTE V5 Pro / Blade A711 (N939SC)
- Release year: 2015
- Chipset: Qualcomm Snapdragon 615
- Display: 5.5″ IPS LCD, Full HD
- Battery: 3000 mAh
- Original OS: Android 5.1 (Lollipop)
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 | Type | Download | Chipset |
|---|---|---|---|---|
| China | V1.10 | QFIL EDL Unbrick ROM | Download | Qualcomm |
How to Flash the Stock Firmware
Restoring a bricked ZTE V5 Pro 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 ZTE V5 Pro (N939SC)
- CRITICAL – China ROM / No Google Services: This is an official ROM for the Chinese market. It does not include Google Play Services or the Google Play Store and will have Chinese apps and services. This ROM is best suited for restoring a Chinese-variant device to its original state, and you will need to install Google apps manually.
- “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.
- Snapdragon 615 Overheating: The Snapdragon 615 chipset is well-known for running hot. It is normal for the phone’s metal body to become very warm during heavy tasks like gaming. A clean flash can resolve software-related heat issues, but be aware that this is a hardware characteristic of this processor.
- 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.
FAQs
Q1. Is the ZTE V5 Pro the same as the Blade A711 and Blade X9?
Yes. For marketing purposes, ZTE sold this device (model N939SC) under all three names in different regions. They share the same hardware and this firmware is compatible with all of them.
Q2. Will this ROM install Google Play Store on my phone?
No. This is an official China ROM and does not contain any Google apps or services. They would need to be installed manually after flashing, which can be a complex process on this version of Android.
Q3. My phone gets very hot. Will flashing this ROM fix it?
Flashing the stock ROM can help if rogue software or apps are causing the overheating. However, the Snapdragon 615 processor is naturally prone to running hot, so a clean flash may not completely solve the issue if you are performing demanding tasks.
Q4. 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 designed to recover Qualcomm devices from a “hard brick” state where they are otherwise unresponsive.
