The ZTE Libero 5G (model A003ZT) is an affordable 5G smartphone released for the Japanese market, typically on the Y!mobile carrier network. It offers a large 6.5-inch display and a triple-camera system, all powered by the capable MediaTek Dimensity 700 5G chipset. This guide provides the official stock ROM, which is essential for unbricking a device, resolving persistent software errors, or bypassing a Google FRP lock.
Crucial Warning: This is a MediaTek device and requires SP Flash Tool. Some firmware files for this model are incorrectly named online with “QPST”. Using the wrong tool (like QFIL) will not work and will fail. Flashing this Japan-specific ROM on a different regional variant can cause a hard brick.
Quick Device Specs
- Device: ZTE Libero 5G (A003ZT)
- Release year: 2020
- Chipset: MediaTek Dimensity 700 5G
- Display: 6.5″ TFT, HD+
- Battery: 3900 mAh
- Original OS: Android 11
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)
| Region / Carrier | Build | Android | Type | Download | Chipset |
|---|---|---|---|---|---|
| Japan (Y!mobile) | V1.0.0B25 | 11 | SP Flash Tool Firmware | Download | MediaTek |
How to Flash the Stock Firmware
Flashing the stock ROM onto your ZTE Libero 5G requires a Windows PC and the SP Flash Tool. The process involves installing the MediaTek VCOM drivers, loading the MTXXXX_Android_scatter.txt file from the firmware into the tool, and then connecting your powered-off phone while holding the Volume Down key to start the flash. Due to the modern Dimensity chipset, this process may require a special Download Agent (DA) file.
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 Libero 5G (A003ZT)
- IGNORE “QPST” in Filenames: Some firmware files for this model are incorrectly named with ‘QPST’. The ZTE Libero 5G uses a MediaTek Dimensity 700 chipset and MUST be flashed with SP Flash Tool. Using QFIL will not work.
- Authentication & Download Agent (DA) Errors: Modern MediaTek chipsets like the Dimensity 700 have enhanced security (Secure Boot). If you encounter a security or authentication error in SP Flash Tool, it means the standard tool cannot communicate with the phone. You may need to find a specific, custom “Download Agent” (DA) file for the Dimensity 700 and load it into the dedicated field in SP Flash Tool before loading the scatter file.
- Using the “Boot Key” or Test Point: To get the tool to recognize your phone, power it off, then press and hold the Volume Down button (or both Volume buttons) and connect the USB cable. If this fails due to security, you may need to force a connection via Test Point Mode, which requires opening the device.
- Japan Carrier ROM: This is official firmware for the Japanese Y!mobile carrier. It will restore all carrier-specific applications and settings. It will not remove the SIM lock.
FAQs
Q1. What is a “scatter file”?
The scatter file (e.g., MT6853_Android_scatter.txt) is a crucial map for MediaTek firmware. It 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.
Q2. Why am I getting a security or authentication error in SP Flash Tool?
Modern MediaTek Dimensity chipsets have Secure Boot protection. This often requires a special “Download Agent” (DA) file to be loaded into SP Flash Tool to bypass the security before flashing can begin. These files are device or chipset-specific and are often found on developer forums.
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.
