The HTC Droid DNA was initially launched with an unlocked bootloader, but Verizon later forced HTC to pull the plug from the HTCdev website. Few days later XDA Elite recognized developer jcase, who has been responsible for a number of exploits across several devices in the past, released an unofficial hack that tricked HTCDev’s unlock tool and allowed users to unlock the bootloader on the HTC Droid DNA device. But his method was very complex and was recommended for experienced users only.
Now, a much simpler method has just been posted on XDA-Developers which just require installing an app. The process is semi-risky since you may not be able to re-lock your device, meaning your warranty is lost. If you’re interested in unlocking the bootloader on your HTC Droid DNA, follow the instructions in the article below. After following the steps, you must go to HTCDev.com and unlock your bootloader. The method does have the potential to brick your phone if done improperly.
Step 1: Install Android SDK on your PC.
Step 2: Download cid.apk on your Droid DNA (cid.apk can be downloaded from here.)
Step 3: Run it (in your app drawer titled HTC DNA SuperCID
Step 4: Reboot to bootloader, plug the phone into your PC and confirm you have SuperCID by opening a command window from your android-sdk/platform-tools folder and typing “fastboot oem readcid”
If you see 11111111, you are safe to proceed to next step. Just open htcdev unlock tool to complete the process. If you see something else (e.g. VZW__001) then reboot your phone again and repeat the process.