XBO U3
XBO U3 is a XBO firmware file listed under XBO, distributed as XBO_U3_MT6580_20180421_5.1.zip with a download size of 706 MB. It was published on April 28, 2026. This page has been viewed 8 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 XBO U3
XBO U3 Stock Firmware (Flash File) The Flash File will help you Upgrade, Downgrade, or re-install the Stock Firmware (OS) on your Mobile Device. In addition, the Flash File (ROM) also enables you to repair the Mobile device if facing any Software Issue, Bootloop Issue, IMEI Issue, or Dead Issue. File Name: XBO_U3_MT6580_20180421_5.1.zip File Size: 706 MB Flash Tool: SP Flash Tool for Windows | SP Flash Tool for Linux How to Flash (install): Follow Tutorial (Mediafire)
File Details
| File name | XBO U3 |
|---|---|
| Package | XBO_U3_MT6580_20180421_5.1.zip |
| Brand / Platform | XBO |
| Category | XBO |
| File size | 706 MB |
| Date added | April 28, 2026 |
| Price | Free |
How to use this file
- Confirm XBO U3 matches your exact device model and that it is intended for XBO hardware.
- Back up your personal data, as flashing firmware can erase the device.
- Download the file (706 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 XBO U3 free to download?
Yes, XBO U3 can be downloaded free of charge from this page.
How large is the download?
The XBO U3 package is 706 MB.
Which devices is this firmware for?
This file is intended for XBO devices. Always confirm it matches your specific model before flashing.