Walton Primo EF7
Walton Primo EF7 is a Walton firmware file listed under Walton, distributed as Walton_Primo_EF7_V01_20171204_7.0_SPD.zip with a download size of 1 GB. It is built for Unisoc (Spreadtrum)-based devices and runs Android 7.0 (Nougat), with a firmware build date of December 04, 2017. It is flashed with SPD ResearchDownload (or UpgradeDownload). It was published on June 16, 2026. This page has been viewed 22 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 Primo EF7
Sometimes a clean firmware install is the best fix for a misbehaving phone. For Walton Primo EF7 owners, this page hosts the original Walton stock ROM and the key file details. It can rescue a bricked handset, fix IMEI or baseband errors, and give the Walton Primo EF7 a fresh start without the clutter that builds up over time. File Name: Walton_Primo_EF7_V01_20171204_7.0_SPD.zip File Size: 1 GB Back up everything important first, keep the battery above the halfway mark, use a cable you trust, and make sure the right drivers are installed. With the stock ROM back in place, the Walton Primo EF7 returns to factory state. If something fails, verify the file matches your model and retry.
File Details
| File name | Walton Primo EF7 |
|---|---|
| Package | Walton_Primo_EF7_V01_20171204_7.0_SPD.zip |
| Brand / Platform | Walton |
| Category | Walton |
| Platform | Unisoc (Spreadtrum) |
| Android version | Android 7.0 (Nougat) |
| Build date | December 04, 2017 |
| Flash tool | SPD ResearchDownload (or UpgradeDownload) |
| Package format | ZIP archive |
| File size | 1 GB |
| Date added | June 16, 2026 |
| Price | Free |
How to flash Walton Primo EF7 with SPD ResearchDownload
- Confirm Walton Primo EF7 matches your exact device model and that it is intended for Walton hardware.
- Back up your personal data, as flashing firmware can erase the device. Charge the battery above 50%.
- Download the file (1 GB) 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 Primo EF7 free to download?
Yes, Walton Primo EF7 can be downloaded free of charge from this page.
How large is the download?
The Walton Primo EF7 package is 1 GB.
Which tool do I need to flash Walton Primo EF7?
Walton Primo EF7 is Unisoc (Spreadtrum) firmware, so it is flashed with SPD ResearchDownload (or UpgradeDownload) using the .pac firmware file.
What Android version is Walton Primo EF7?
This firmware is Android 7.0 (Nougat), built on December 04, 2017.
Which devices is this firmware for?
This file is intended for Walton devices. Always confirm it matches your specific model before flashing.