Jun
27
2009
Unroot and Restore your Android G1 to Factory Settings
Posted by Abolfazl in Other, tags: Android
This will completely restore your G1 software to what it was like out of the box. We recommend doing this whenever you will be giving physical possession of your phone away for long periods of time, such as when you sell, replace, and/or send it in for repair. Not only will this hide any software modifications you have done which basically “unvoids” your warranty but also clear out your personal data.
If you have custom splash2:
- You will need to erase it before you start this tutorial
- On your computer extract this to your desktop
- Turn off your phone
- Plug it into your computer by USB
- Load into fastboot (Hold Camera & Power button)
- If you see “serial0″ hit the “back” key and it should say “FASTBOOT” now
- On your computer go to Start>Run. Type in “cmd” and push enter
- type in “cd desktop” then enter
- Then type “fasboot erase splash2″ then push enter
Once your custom splash(if had) is gone:
- Ensure your phone is connected and you can write to /SDCard
- Download the Original G1 SPL and rename it to “update.zip”
- Copy update.zip to /SDCard
- Go into your phones recovery (Hold the home & power button)
- Push Alt+S on your G1 to flash it with update.zip
- Download the RC29 NBH and place it in the root of your SDCard
- Load your phones bootloader (Hold the Camera & Power button)
- Press the Power button to start the update (Do NOT interrupt this process)
- Hit the action key (Trackball down) and your phone will reboot.
- At this point your phone will be unrooted but it will have the out-of-date RC29. Your phone should download updates OTA(Over The Air) soon but you can also force this by going to Settings>About phone>System Updates
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