Things to Remember
o This guide is only for the HTC DESIRE SV. Do not attempt the following steps on any other device.
o The warranty will be voided after the unlock.
o Make sure your battery is charged to at least 80%.
o If you are unsure about any step, ask us in the comment section before proceeding further.
Thing to be Done
o All the files will be wiped after the unlock so take backup of all your important data.
o Enable USB debugging from the Developer options.
o Download and install the HTC Sync Manager from this link.
o Download Fastboot zip file from this link and extract the contents into a folder namedFastboot.
o Disable antivirus software on your system to avoid unnecessary interference.
Step-by-step Guide to Unlock HTC DESIRE SV Bootloader
o Go to the website www.htcdev.com
and register yourself. Make sure to verify the email to complete the registration process.
o Login to the htcdev website and then go to the Unlock Bootloader page.
o Click the drop down devices list Under supported devices and select the option ‘All Other Supported Models‘. (select htc desire because htc desire sv will be not in the list)
o Click on ‘Begin Unlock Bootloader’ and select Yes on the confirmation screen.
o Acknowledge messages on the Legal Terms and click on ‘Proceed to Unlock Instructions’.
o The next page with unlocking bootloader instructions will give you 4 steps to follow: Disconnect mobile from the PC if connected and then switch off the device. Then pressVolume Down button and Power button to start the device in Bootloader mode. Once it’s in Bootloader screen, highlight Fastboot option and press the Power button. Then connect your HTC DESIRE SV to PC via USB cable.
o Click on Proceed to step 5. But it’s not required to follow the steps mentioned in the second page of htcdev site. Instead you go to the Fastboot folder which we have extracted earlier and hold the Shift key and at the same time right click on the free space. Select the option ‘Open command window here’.
o Windows command window will appear like ‘..\Fastboot>’. Now you need to enter the following command in the command line fastboot devices (This command will tell you whether your device is detected by your computer or not. If your device shows you can go ahead with the next step. If the device is not detected the command screen will not show any information and in this case you have to re-install the HTC Sync Manager and reboot your PC. Then redo the tutorial from the beginning.
o Keep open the command window. Then go to the third page of instruction in htcdev by clicking on ‘Proceed to Step 8‘ button.
o Follow the steps mentioned in the third page of htcdev site (from step 8 to step 10). When all the steps are done, click on Submit button.
o If all the steps are done properly you will get a message ‘Token Submitted Successfully!’ and the Unlock Key information is emailed to you.
o Open the email from HTC and download the attached file named ‘Unlock_code.bin’.
o Once the download is done copy the ‘Unlock_code.bin’ file to Fastboot folder.
o Now go back to the command window and the following command: fasboot flash unlocktoken Unlock_code.bin
o Now the HTC DESIRE SV will get a message to Unlock bootloader. Press Volume up and select YES, then press Power button to confirm the action.
o Your HTC DESIRE SV will now restart and ask to complete the factory reset process. You can now disconnect your device from the PC.
That’s all! You have successfully Unlocked the Bootloader of your HTC DESIRE SV. Now you can root and install Custom ROMs on your device without any issues.
ROOTING HTC DESIRE SV:
1.)Dowload android.rar from link
2.)download superuser.zip from link
*switch off your mobile
*click volume down and power button simultaneously to enter boot menu
*connect your device to pc via usb
*it will be appearing fastboot usb in the mobile
*extract downloaded file to c:\
*copy super user.zip to your external sd card
*click winkey+r and type cmd to enter command prompt
*type cd android to enter into c:\android where the files are present
*type fastboot flash recovery recovery.img
*you will get success notification in command prompt
*type fastboot reboot-bootloader
*wait for few minutes it wil show entering recovery... and it wil enter black screen after 2 minutes it wil enter recovery
*click install zip via sd card
*select zip file from external sd
*click yes to install
*congratulation your HTC DESIRE SV mobile is rooted now