How to Unroot your HTC Evo 4G!

Here’s an updated way to unroot your HTC Evo 4G by using RUU. RUU basically can return your HTC Evo 4G back to completely stock just in case you need to return your Evo to Sprint for some reason. E.g. You broke your Evo 4G and you bought Sprint warranty.

How to unroot your HTC Evo 4G:

1. Reboot your HTC Evo 4G into bootloader mode by turning the phone off then pressing the power button while holding down the volume down button.

2. Select “Fastboot” and hit power button.

3. Connect your Evo 4G to your computer and make sure “Fastboot USB” comes on the Evo 4G.

4. Just download the RUU file and run.

5. That’s it!

Download HTC Drivers

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Download Windows 32-bit drivers here

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Download Windows 64-bit drivers here

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131 Responses to How to Unroot your HTC Evo 4G!

  1. Hector says:

    Hi i am trying to unroot my evo 4g LTE. i have installed the RUU and the correct drivers, but everytime its in the process of unrooting the Drivers revert back to Android 1.0 and the RUU shuts down. Does anyone know how to solve this problem or has fixed it so i can please just unroot my evo already.

  2. Jessica says:

    I keep getting “ERROR [155]: UNKNOWN ERROR..The ROM update utility cannot update your Android phone. Please get the correct ROM update utility and try again.”

    How do I find the correct update utility?? Please help, thank you!!!

  3. Dennis Wheeler says:

    Hope you can help. My evo 4g is on revolutionary s-off but it will not load roms. I am trying to unroot as I did for the phone i just returned. RUU runs and says it was completed but it is still revolutionary s-off.

  4. Br0ski says:

    So is the bootloader locked just by running the RUU?

    • Br0ski says:

      To answer my own question the bootloader is still unlocked (example: S-off)
      To lock the bootloader (S-on) you need to find another file out there on the interwebs.
      If someone finds it I would like you to link it here.
      Many attempts I was unsuccessful in finding a working S-on file.

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