How To Create From Your Backup

I Have Today In One Of The Most Popular Post How To create Backup Your Rom

This tutorial only works with the Primo j3 device. Create backups for all the files that you have currently stored on your Walton Primo C1 device.
Also, make sure that the device’s battery has enough power left before it completely discharges.

1. Enable the USB Debugging for you device from Developer Options menu.
If Developer Options doesn’t appear in the Settings list, then you need to un-hide this menu first: open About Phone and tap seven times on the Build Number section until you’re told that you’re a developer.

2. Download the Stock ROM for Primo C1 from its link at the end of the post.

3. Extract the Stock ROM zip contents and save them all on your PC.

4. Download the Spreadtrum Upgrade Tool from here . Extract its contents.

5. Power off your device.

6. Next, launch the UpgradeDownload.exe app.
7. After the applications is opened you should use the USB Cable and connect your device to your PC.
Wait for the Primo C1 to be detected by your computer and then continue to the next step.

8. After the device is connected you can click on the ‘Load Packed’ option of Spreadtrum tool.

9. Find the ‘.pac’ firmware file and load it in the app.

10. After that you can click the ‘Start Downloading’ icon and wait until the new stock ROM installation is complete.
11. When all files are installed you will see a confirmation message. Close the app and then reboot your device in normal mode.

These were all the steps that you had to take in order to install stock ROMs for Wlaton Primo devices.
If your device is not listed under any guide above and, it is one of the following models: Primo, PrimoG2, Primo H1, Primo S2, Primo ZX, then you should follow the info listed in their ‘instructions.txt’ file in order to install the stock ROM. The instructions text file can be found in the Stock ROM download package of each device.

I hope that you’ve managed to successfully complete the stock ROM installation for your Walton Primo devices. Remember to restore your backups after the ROM is flashed.