Walton MM20
Walton MM20 is a Walton firmware file listed under Walton, distributed as Walton_MM20_SC6531_MIRA.zip with a download size of 4 MB. It is built for the Unisoc (Spreadtrum) SC6531 chipset. It is flashed with SPD ResearchDownload (or UpgradeDownload). It was published on June 16, 2026. This page has been viewed 12 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 Walton MM20
The Walton MM20 runs on Walton'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 fixes random reboots, crashing apps, a phone stuck on the splash screen, or a botched OTA update, and removes leftover bloat by returning the Walton MM20 to factory condition. File Name: Walton_MM20_SC6531_MIRA.zip File Size: 4 MB Back up your files, charge the Walton MM20 past 50 percent, install the matching drivers, and only then begin. When it finishes, the Walton MM20 restarts with clean factory software. Match the firmware to your variant and follow each step in order.
File Details
| File name | Walton MM20 |
|---|---|
| Package | Walton_MM20_SC6531_MIRA.zip |
| Brand / Platform | Walton |
| Category | Walton |
| Chipset | Unisoc (Spreadtrum) SC6531 |
| Flash tool | SPD ResearchDownload (or UpgradeDownload) |
| Package format | ZIP archive |
| File size | 4 MB |
| Date added | June 16, 2026 |
| Price | Free |
How to flash Walton MM20 with SPD ResearchDownload
- Confirm Walton MM20 matches your exact device model and that the phone uses the SC6531 chipset.
- Back up your personal data, as flashing firmware can erase the device. Charge the battery above 50%.
- Download the file (4 MB) using the button above and extract it on a Windows PC.
- Install the SPD / Unisoc USB drivers, then open SPD ResearchDownload (or UpgradeDownload).
- In the tool, load the .pac firmware file from the extracted folder.
- Start the flash, then press Start in the tool, then connect the powered-off phone while holding Volume Down (boot key).
- Wait for the success message before disconnecting. Leave "Erase NV" unticked unless you intend to wipe IMEI and calibration data.
Guides for this firmware
- Flashing .pac Files with SPD ResearchDownload GuideSPD ResearchDownload (also known as UpgradeDownload) is a specialized flashing tool used to install stock firmware on devices powered by Unisoc (Spreadtrum) chipsets. It is primarily used to unbrick…
- How to Use SPD ResearchDownload: Firmware Flashing GuideSPD ResearchDownload (also known as UpgradeDownload) is a specialized flashing tool used to install stock firmware on devices powered by Unisoc (Spreadtrum) chipsets. It allows technicians and users…
Frequently asked questions
Is Walton MM20 free to download?
Yes, Walton MM20 can be downloaded free of charge from this page.
How large is the download?
The Walton MM20 package is 4 MB.
Which tool do I need to flash Walton MM20?
Walton MM20 is Unisoc (Spreadtrum) SC6531 firmware, so it is flashed with SPD ResearchDownload (or UpgradeDownload) using the .pac firmware file.
Which devices is this firmware for?
This file is intended for Walton devices. Always confirm it matches your specific model before flashing.