ZTE Libero 5G (A003ZT) Firmware Flash File Download [Stock Rom]
The ZTE Libero 5G (model A003ZT) is a 5G-capable smartphone released for Japan’s Y!mobile carrier. It stands out by offering the MediaTek Dimensity 720 5G chipset in a budget-friendly package. For users needing to unbrick a dead device, fix critical software errors, or revert to the original factory software, flashing the official stock firmware is the ultimate solution.
Important Note: The filename for this package incorrectly contains “QPST.” This device is powered by a MediaTek Dimensity 720 5G chipset (MT6853), not a Qualcomm chip. Therefore, the restoration process requires SP Flash Tool. Furthermore, the Dimensity chipset has Secure Boot, which means a special authentication bypass tool is necessary to allow flashing.
Quick Device Specs
- Device: ZTE Libero 5G (A003ZT)
- Release year: 2021
- Chipset: MediaTek Dimensity 720 5G (MT6853)
- Display: 6.5″ TFT LCD, 2340×1080
- Battery: 3900 mAh (Non-removable)
- Memory: 4GB RAM + 64GB storage
- Camera: 16MP + 8MP + 2MP triple rear, 8MP front
- OS: Android 11
- Carrier: Y!mobile (Japan)
Required Downloads
| File / Tool | Download Link |
|---|---|
| SP Flash Tool | Download Tool |
| MediaTek USB VCOM Drivers | Download Drivers |
| MTK Auth Bypass Tool | Download Bypass Tool |
Stock ROM & Firmware
| Version | Android | Carrier | Type | Download | Size |
|---|---|---|---|---|---|
| (22/02/21) | 11 | Y!mobile (Japan) | SP Flash Tool | Download | ~2.2 GB |
Quick Flashing Guide (Auth Bypass Required)
- Download and install the MediaTek VCOM drivers, SP Flash Tool, and the MTK Auth Bypass Tool.
- Extract the firmware ZIP file to find the MT6853_Android_scatter.txt file.
- Run the Auth Bypass Tool and click “Disable Auth.” Power off your phone, hold Volume Up + Volume Down, and connect it to the PC. Wait for the success message in the bypass tool.
- Keeping the phone connected, launch SP Flash Tool, load the scatter file, select “Download Only,” and click “Download” to begin flashing.
For a complete tutorial on using SP Flash Tool (after the bypass step), please refer to our definitive guide:
How to Flash Stock Firmware on MediaTek (MTK) Smartphones
FAQs
Q1. Will this firmware remove the Y!mobile network lock?
No. This is the official Y!mobile carrier firmware. It will restore the original software, but the device will remain locked to the Y!mobile network in Japan.
Q2. Does this firmware include Google Play Store?
Yes. Unlike mainland China ROMs, firmware for Japanese carriers like Y!mobile typically includes full Google Mobile Services (GMS), including the Google Play Store.
Q3. Why is an “Auth Bypass Tool” necessary for this phone?
Modern MediaTek Dimensity chipsets have a security feature called Secure Boot that prevents unauthorized software flashing via SP Flash Tool. The Auth Bypass Tool temporarily disables this protection, allowing the flashing process to proceed.
Q4. The filename says “QPST” but the guide says “SP Flash Tool”. Why?
The original uploader mislabeled the file. The ZTE Libero 5G (A003ZT) is confirmed to have a MediaTek Dimensity 720 chipset, which exclusively uses SP Flash Tool. Using QFIL would not work and could be harmful. We have provided the correct instructions for the device’s actual hardware.
Troubleshooting (ZTE Libero 5G)
- SP Flash Tool gives a red error bar or authentication error: This is the expected error if you do not use the Auth Bypass tool first. You must successfully disable auth before attempting to use SP Flash Tool.
- Auth Bypass tool doesn’t detect the phone: This is a driver issue. Ensure VCOM drivers are correctly installed. The phone must be fully off, and you must hold both volume buttons before connecting the USB cable.
- Phone boots into the Japanese language: During the initial setup wizard, look for the language selection option (usually marked with a globe icon or the word 言語) to switch to English.
- “Invalid SIM” or “No Service”: This will occur if you use a SIM card from a carrier other than Y!mobile in Japan. The phone is network-locked.
