JuopunutBear S-OFF Public Beta

JuopunutBear is the first release from team Unlimited.IO. It is a tool for gaining (radio) S-OFF and flashing a custom bootloader that supports full write/erase fastboot commands on a number of HTC phones.

JuopunutBear does not provide root access, however with S-OFF this is a simple process of flashing superuser from recovery.

JuopunutBear comes with NO WARRANTY (express or implied), and NO GUARANTEE OF FITNESS for any particular task. We have made every effort we can to make this a safe process for users however the authors disclaim any liability for damage to your phone or other materials or devices used during this process. The entire risk of running JuopunutBear lies with you, the user. By downloading and/or using any software, video file or text from this website you acknowledge and accept that the authors are not liable for any loss, material or otherwise howsoever caused.

Supported Devices

JuopunutBear currently supports the following Android phones running GingerBread and Ice Cream Sandwich:

  • HTC Amaze (ruby)
  • HTC Vivid/Raider/Velocity (holiday)
  • HTC Rezound (vigor)
  • HTC Sensation (pyramid)
  • HTC myTouch 4G Slide (doubleshot)
  • HTC EVO 3D cdma (shooter)
  • HTC EVO 3D GSM (shooteru)
  • HTC Jetsteam (verdilte)

No HTC Dev Unlock Devices supported (click the link for instructions):

JuopunutBear will permanently unlock NAND flash write protection on all supported devices.

Read all of the instructions on this page AT LEAST once through - gathering your supplies, downloads, and opening the image for the wire trick - BEFORE following the directions step-by-step. Failure to do so may cause problems.


Step 1 | Pre-requisites:

  1. Supported Operating Systems:

    We only support Ubuntu 12.04 (and newer) 32bit, you may use a LiveCD if you have the wrong OS installed natively. LiveUSB will NOT work!

    Ubuntu 64bit, Ubuntu versions lower than 12.04, other Linux distros, Virtual Machines and Mac's will NOT work - we will not help you if you break your device!

  2. Be on the Stock RUU. No other ROMs are supported, Fresh ROM will not work regardless of what you have read elsewhere.

  3. Ensure that your battery is fully charged.

  4. External SD card (2GB - 16GB) in your device.

  5. The original HTC USB cable for your device.

  6. Perform a full backup or replace your SDcard with one that you are willing to wipe - it is possible that during these steps all data may be lost.

  7. You must be directly connected to a USB 2.0 port on your computer - USB 3.0 and USB hubs will NOT work!


Step 2 | ControlBear:

  1. Verify - You are on Stock RUU (not FreshROM, Stock Rooted, HarmonyROM - none of these will work!)

  2. Verify - You are HTC Dev Unlocked

  3. Turn ON USB Debugging on your device (Settings > Developer Options)

  4. Verify fast boot is turned OFF (Usually found under Power Settings)

  5. Connect your device and set to "Charge Only"

  6. Download the correct version of the tool for your HBOOT and OS:

    HTC myTouch 4G Slide (doubleshot)

    HTC Vivid/Raider/Velocity (holiday) HTC Sensation (pyramid) HTC Amaze (ruby) HTC EVO 3D cdma (shooter) HTC EVO 3D GSM (shooteru) HTC Jetsteam (verdilte) HTC Rezound (vigor)
  7. Untar ALL files from the download into a new folder

  8. cd into the folder where you extracted and run the following cmd:
    Note: This cmd returns a blank new line if you have done it correctly.

    • chmod 755 ControlBear adb fastboot
  9. Run ControlBear from terminal - sudo ./ControlBear

  10. Follow the on-screen instructions from ControlBear.

  11. Do not press any of the buttons on the phone during the process.


Step 3 | Wire Trick:

The "wire trick" is an essential part of the JuopunutBear S-OFF procedure.

  1. Obtain an insulated wire of appropriate length and gauge. Suitable wires are: a SINGLE core (strand) from an ethernet cable or a core from a coaxial cable.

  2. Pick our your device from the link below and click on it. This will open a new window with the image for the PIN and GND points needed for completing the wire trick.

  3. When instructed to do so by the program you must perform the "wire trick" as follows:

    • Hold one end of the wire into the hole where PIN is indicated in the picture below, ensuring that a firm contact is made with the metal contact at the bottom of the hole.

    • Briefly touch to other end of the wire to the contact marked GND in the picture.

    • Wait approximately 1.5 seconds and then again touch the wire to the marked GND.
      * If that timing does not work the first time try: TAP (pause 1.25 seconds) TAP

    • Allow the program to continue.

    IMPORTANT: If you get the error Still Sober all you need to do is re-run ControlBear after you have verified that you meet all of the pre-requirements.


If you're having problems check these troubleshooting steps.

Troubleshooting Steps

Don't know if your HBOOT is GB or ICS?

HBOOT Version List



Support for JuopunutBear is on IRC channel #unlimited on freenode. If you do not have an IRC client you can use the link below.


Sensation, Evo3D and MT4GS:

While it is possible to gain S-OFF on using any current version of android on the HTC Sensation Evo3D and MT4GS, we encourage you to use the revolutionary tool if your device is on a supported HBOOT. The revolutionary tool is a simpler process for the end user than JuopunutBear.