Ulefone S1
Ulefone S1 is a Ulefone firmware file listed under Ulefone, distributed as Ulefone_S1_MT6580_DF1_V03_20191120.zip with a download size of 691 MB. It was published on June 16, 2026. It is available to download free of charge. Before flashing, verify the file matches your exact device model and back up your data.
About Ulefone S1
The Ulefone S1 runs on Ulefone's factory software, and sometimes you need to reinstall it from scratch. This page provides the genuine stock ROM so you can return the device to its original state. It can rescue a bricked handset, fix IMEI or baseband errors, and give the Ulefone S1 a fresh start without the clutter that builds up over time. File Name: Ulefone_S1_MT6580_DF1_V03_20191120.zip File Size: 691 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. Once installed, your Ulefone S1 should boot up like new. Use the right file for your exact model and don't interrupt the process.
File Details
| File name | Ulefone S1 |
|---|---|
| Package | Ulefone_S1_MT6580_DF1_V03_20191120.zip |
| Brand / Platform | Ulefone |
| Category | Ulefone |
| File size | 691 MB |
| Date added | June 16, 2026 |
| Price | Free |
How to use this file
- Confirm Ulefone S1 matches your exact device model and that it is intended for Ulefone hardware.
- Back up your personal data, as flashing firmware can erase the device.
- Download the file (691 MB) using the button above.
- Use the appropriate flashing tool for your platform and follow the on-screen steps.
- Keep the device charged and connected until the process completes.
Frequently asked questions
Is Ulefone S1 free to download?
Yes, Ulefone S1 can be downloaded free of charge from this page.
How large is the download?
The Ulefone S1 package is 691 MB.
Which devices is this firmware for?
This file is intended for Ulefone devices. Always confirm it matches your specific model before flashing.