ZTE Blade A452 / Blade X3 Firmware Flash File Download [Stock Rom]
The ZTE Blade A452, also widely known as the ZTE Blade X3, is a budget smartphone from 2015 that was highly sought after for its main selling point: a massive 4000 mAh battery. For owners of this classic endurance phone, flashing the official stock firmware is the best way to resolve software-related battery issues, fix a device stuck in a bootloop, or restore it to its original factory condition.
Important Note: This device is powered by a MediaTek MT6735P chipset. The restoration process requires the use of SP Flash Tool. This guide will help you restore the original Android 5.1 Lollipop software.
Quick Device Specs
- Device
- ZTE Blade A452 / Blade X3
- Model
- P635F33
- Release year
- 2015
- Chipset
- MediaTek MT6735P
- Display
- 5.0″ HD IPS LCD (1280×720)
- Battery
- 4000 mAh (Removable)
- Memory
- 1GB RAM + 8GB storage
- Camera
- 8MP rear, 5MP front
- OS
- Android 5.1 (Lollipop)
Required Downloads
| File / Tool | Download Link |
|---|---|
| SP Flash Tool | Download Tool |
| MediaTek USB VCOM Drivers | Download Drivers |
Stock ROM & Firmware
Multiple builds are available for this device. The 2017 version is the newest and likely most stable. If you have issues with one, try another.
| Build Date | Android | Region | Type | Download | Size |
|---|---|---|---|---|---|
| 2017-07-03 | 5.1 (Lollipop) | Global | SP Flash Tool | Download | ~950 MB |
| 2016-01-19 | 5.1 (Lollipop) | Global | SP Flash Tool | Download | ~950 MB |
Quick Flashing Guide
- Download and install the MediaTek VCOM drivers and the SP Flash Tool on your computer.
- Extract your chosen firmware ZIP file to find the `MT6735_Android_scatter.txt` file.
- Launch SP Flash Tool, load the scatter file, and ensure the flashing mode is set to “Download Only.”
- Power off your phone, remove the battery, click the “Download” button in the tool, and then connect the phone to your PC via USB to begin.
For a complete, step-by-step tutorial with screenshots, please refer to our definitive guide:
How to Flash Stock Firmware on MediaTek (MTK) Smartphones
FAQs
Q1. What’s the difference between the Blade A452 and the Blade X3?
There is no significant difference. They are simply different marketing names used for the same phone in different regions. The firmware should be cross-compatible.
Q2. My 4000 mAh battery percentage drops suddenly. Will this fix it?
Yes, this is a classic software calibration issue. A full firmware flash will reset the battery stats. For best results after flashing, fully charge to 100% and then use it until it turns off to help the system re-learn the battery capacity.
Q3. Can I update this phone from Android 5.1 Lollipop?
No. This was the only major OS version officially released for this model. This firmware will restore the original Lollipop system.
Device-Specific Troubleshooting
- Overheating While Charging: While it’s normal for a large 4000 mAh battery to get warm, excessive heat can indicate a problem. A firmware flash can fix software bugs causing the phone to draw too much power. If it still gets very hot after a clean flash, you may be using a non-original or faulty charger.
- “Insufficient Storage” Error: The 8GB of internal storage is the biggest bottleneck of this phone. It is essential to use a microSD card for all photos and media. Go to `Settings > Apps` to disable any pre-installed bloatware to free up precious system space for essential app updates.
- SP Flash Tool Doesn’t Detect the Phone: This is a driver issue. Reinstall the VCOM drivers (disabling driver signature enforcement in Windows first). The removable battery is your best tool: remove it, click “Download” in SP Flash Tool, then connect the phone without the battery. Once the red bar appears, you can re-insert it.
- “Invalid IMEI” after Flashing: This critical error occurs if you use the “Format All + Download” option in SP Flash Tool. It erases the phone’s unique identifier. To prevent this, always use the “Download Only” mode. Restoring a lost IMEI is a very complex process.
