Most people root their devices to customize the settings, apply tweaks and install custom ROMs. There are hundreds of custom ROMs available for the HTC devices and if you have rooted your device, you must have tried at least one custom ROM on it. Sometimes, when you brick your device doing such things, you need to take your device to the company shop. First you have to unroot your device to reinstate the warranty and only then you can have your device repaired at the shop. Here’s how you can unroot the HTC EVO 3D (CDMA) smartphone.
1. You should have rooted your device using the procedure given here.
2. You must have a custom recovery on your device. If you have rooted your device using our guide, you already have a custom recovery.
1. CDMA RUU (Download the appropriate RUU for your device) (Only works for Sprint variant)
If you’ve links to other RUUs for this device, please submit them using the contact form.
1. Download and place both the files onto your Desktop.
2. Extract files from the Fastboot archive to your Desktop. Make sure you have adb.exe and fastboot.exe on your Desktop.
3. Rename the CDMA RUU file you just downloaded to PG86IMG.zip.
4. Connect your smartphone to the PC using the USB cable.
5. Transfer the CDMA RUU file to the root folder of your smartphone’s SD card storage.
6. Open a Command Prompt Window on the Desktop of your PC. Press and hold the Shift key on your keyboard and right-click on any empty area on the screen and choose Open command window here.
7. Issue the following command using the Command Prompt Window:
adb reboot recovery
8. Your device should reboot into the recovery mode.
9. Using the options given in the Recovery menu, wipe Dalvik, cache, data, system and factory reset.
10. Reboot your device.
11. Now, issue the following command using the same Command Prompt Window:
adb reboot bootloader
12. Your smartphone should automatically detect the RUU file and ask you if you want to flash it. Hit the Yes option.
13. After the file has been flashed on your device, choose the Fastboot mode from the bootloader menu.
14. Type in the following command into the Command Prompt Window:
fastboot oem lock
15. It should relock the bootloader of your device. Enter the following command to reboot your device.
16. You are good to go !
Your smartphone has been successfully unrooted and the bootloader is also relocked.
If this procedure helped you please thank/donate to the original developers here.
If you need help with this procedure, please ask in the comments below or in the forum.
This is part of our Android How To’s. We have how to’s on rooting, loading ROMs, and tons of other tips and tricks for your specific device or for Android devices in general! For all of our Android How To’s, head here.