YU Yuphoria

Unlocking the device

1. Make sure your computer has working fastboot and adb.
2. Enable USB debugging on the device.
3. Connect the device to the computer through USB.
4. From a terminal on a computer, type the following to boot the device into fastboot mode:

   adb reboot bootloader

5. Once the device is in fastboot mode, verify your PC sees the device by typing fastboot devices
   • If you don't see your device serial number, and instead see "<waiting for device>", fastboot is not configured properly on your machine.
   • If you see "no permissions fastboot", try running fastboot as root.
6. From the same terminal, type the following command to unlock the bootloader:

   fastboot -i 0x1ebf oem unlock

7. A disclaimer will display on the device that must be accepted. Use the volume keys to cycle through the options. Pressing the power button should confirm your selection.
8. If the device doesn't automatically reboot, reboot it from the menu. It should now be unlocked.
9. Since the device resets completely, you will need to re-enable USB debugging on the device to continue.

Installing recovery using fastboot

1. Make sure your computer has working fastboot and adb.
2. Download recovery -- visit clockworkmod.com/rommanager to check for the latest version of ClockworkMod recovery for your device (if your device can be found there).
3. Connect the yuphoria to the computer via USB.
4. Make sure the fastboot binary is in your PATH or that you place the recovery image in the same directory as fastboot.
5. Open a terminal on your PC and reboot the device into fastboot mode by typing

   adb reboot bootloader

   or by using the hardware key combination for your device while it is powered off.

6. Once the device is in fastboot mode, verify your PC sees the device by typing

   fastboot devices

   • If you don't see your device serial number, and instead see "<waiting for device>", fastboot is not configured properly on your machine.
   • If you see "no permissions fastboot", make sure your UDEV rules are setup correctly.
7. Flash recovery onto your device by entering the following command:

   fastboot flash recovery your_recovery_image.img

   where the latter part is the filename of the recovery image.

8. Once the flash completes successfully, reboot the device into recovery to verify the installation. Boot to recovery instructions: With the device powered down, hold the Volume Down and Power buttons.
   • Note: Some ROMs overwrite recovery at boot time so if you do not plan to immediately boot into recovery to install Tesla OS, please be aware that this may overwrite your custom recovery with the stock one.

Installing Tesla OS from recovery

1. Make sure your computer has working adb.
2. Download the Tesla OS package for your device that you'd like to install to your computer.

   Optional: Download 3rd party applications packages, like Google Apps which are necessary to download apps from Google Play.

3. Boot to recovery mode, and connect the phone to your computer through USB.
   • With the device powered down, hold the Volume Down and Power buttons.
4. In ClockworkMod Recovery, use the physical volume buttons to move up and down. On most devices, the power button is used to confirm a menu selection, but for some devices a physical home key acts as a selector. Some devices have touch enabled ClockworkMod Recovery, in which case you may be able to swipe to, or touch, menu selections.
5. Optional (Recommended): Select backup and restore to create a backup of your current ROM.
6. Select wipe data/factory reset.
7. You have two options for transferring and installing the installation packages. The sideload method is more universal across devices, whereas the push and install method is more commonly used:
   • Sideload method: select install zip > install zip from sideload. Follow the on-screen notices to install the package. The installer does not necessarily display an "Install complete." message. You can tell the install is complete if there were no fatal error messages and you have regained control over the menu.
   • Push and install method: Open a command prompt (or Terminal on Mac and Linux) and navigate to the directory holding the package(s) you would like to install. On the device, navigate to the mounts and storage menu. If you see /storage/sdcard0 or /sdcard as a mountable volume, go ahead and mount it. If you do not see one of these partitions, then instead mount the /data partition. Take note of which volume you mounted. Now, push the package(s) to your device (also, see tip below):

   - If you mounted /storage/sdcard0, then: adb push update.zip /storage/sdcard0/

   - If you mounted /sdcard or /data, then: adb push update.zip /sdcard/

   where update.zip should be replaced with the package filename. Go back to the main menu and select install zip. Choose to install from the same directory where you pushed the package(s). If you are installing multiple packages, install Tesla OS first and then install any subsequent packages on top of it.

8. Once installation has finished, return to the main menu and select reboot system now. The device will now boot into Tesla OS.

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