Alcatel 1 U3A Plus
Alcatel 1 U3A Plus is a Alcatel firmware file listed under Alcatel, distributed as Alcatel_1_U3A_Plus_MT6739_050620_8.1.0.zip with a download size of 784 MB. It is built for the MediaTek MT6739 chipset and runs Android 8.1 (Oreo). It is flashed with SP Flash Tool. It was published on June 16, 2026. This page has been viewed 24 times. It is available to download free of charge. Before flashing, verify the file matches your exact device model and back up your data.
About Alcatel 1 U3A Plus
If your Alcatel 1 U3A Plus has been giving you trouble, reinstalling the stock firmware is often the cleanest fix. Here you'll find the full Alcatel flash package along with the details to check before you begin. Whether an update corrupted the system or a root attempt went wrong, the factory ROM puts the Alcatel 1 U3A Plus back to square one. File Name: Alcatel_1_U3A_Plus_MT6739_050620_8.1.0.zip File Size: 784 MB Copy your data somewhere safe, top up the battery, grab a working USB cable, and confirm the proper drivers are set up before you start. When it finishes, the Alcatel 1 U3A Plus restarts with clean factory software. Match the firmware to your variant and follow each step in order.
File Details
| File name | Alcatel 1 U3A Plus |
|---|---|
| Package | Alcatel_1_U3A_Plus_MT6739_050620_8.1.0.zip |
| Brand / Platform | Alcatel |
| Category | Alcatel |
| Chipset | MediaTek MT6739 |
| Android version | Android 8.1 (Oreo) |
| Flash tool | SP Flash Tool |
| Package format | ZIP archive |
| File size | 784 MB |
| Date added | June 16, 2026 |
| Price | Free |
How to flash Alcatel 1 U3A Plus with SP Flash Tool
- Confirm Alcatel 1 U3A Plus matches your exact device model and that the phone uses the MT6739 chipset.
- Back up your personal data, as flashing firmware can erase the device. Charge the battery above 50%.
- Download the file (784 MB) using the button above and extract it on a Windows PC.
- Install the MediaTek VCOM / USB drivers, then open SP Flash Tool.
- In the tool, load the scatter file (MTxxxx_Android_scatter.txt) from the extracted folder.
- Start the flash, then power the phone off, then connect it (hold Volume Up or Down if it is not detected).
- Wait for the success message before disconnecting. Use "Download Only" — "Format All + Download" erases IMEI/NVRAM calibration.
Guides for this firmware
- MT6739 Firmware Guide: Flashing Tools and InstructionsThe MT6739 is a MediaTek chipset used in a wide variety of budget Android smartphones and tablets. To reflash or unbrick a device using this chipset, you will need the correct firmware for your…
- Installing MediaTek VCOM Drivers for SP Flash ToolTo flash firmware on a MediaTek-based device, you must use the SP Flash Tool in conjunction with MediaTek VCOM USB drivers. These drivers allow your computer to communicate with the device's chipset…
- What is a Scatter File? Loading MediaTek Firmware in SP Flash ToolA scatter file is a text document, typically named MTxxxx_Android_scatter.txt , that acts as a map for the SP Flash Tool. It tells the software exactly where each partition of the firmware should be…
Frequently asked questions
Is Alcatel 1 U3A Plus free to download?
Yes, Alcatel 1 U3A Plus can be downloaded free of charge from this page.
How large is the download?
The Alcatel 1 U3A Plus package is 784 MB.
Which tool do I need to flash Alcatel 1 U3A Plus?
Alcatel 1 U3A Plus is MediaTek MT6739 firmware, so it is flashed with SP Flash Tool using the scatter file (MTxxxx_Android_scatter.txt).
What Android version is Alcatel 1 U3A Plus?
This firmware is Android 8.1 (Oreo).
Which devices is this firmware for?
This file is intended for Alcatel devices. Always confirm it matches your specific model before flashing.