How To Manual Update HTC Evo 4G LTE to Android 4.1.1 Jelly Bean Rooted Official Stock Firmware

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Great news to all the HTC Evo 4G LTE users. The official OTA Jelly Bean android 4.1.1 updates has been rolling out. We are pleased that HTC Evo 4G eventually tasted Jelly Bean  together with Sense 4+. Google Now, improved notification menu bar and faster smoother performance should right now running on your Evo 4G.

In case you have not receive the OTA update and eagerly wanted to try the latest official Jelly Bean update on HTC Evo 4G, we have prepared a detail flash procedure for you. If you have updated to OTA update, you might check out how do we root the official JB firmware on this stock firmware. Let’s started with the benefit of rooting before we start to flash the ROM. Enjoy!

Benefit of Rooting

By rooting your phone/tablet, you can actually perform better management of your phone. However, many are afraid of rooting since bricking of your devices will still occur if you are not follow the guide exactly. To swap away your fear of rooting, we will listed down the benefits of rooting your Android devices:

1. Full Control of Android
With root access, you can alter any system files (developer level), delete annoying pre-installed stock apps (come with carrier perhaps), change Samsung boot animation (or others brand) and much more. As you can tells, you can actually alter with full access to your phone via root.

2. Backup and Restore Your Android Devices
It is not a unique condition whereby your phone will getting slower and buggy after long period of usage. No matter how well you keep your phone (not installing any stuff which is not possible), it seem like the phone will still getting degraded in performance or error keep popping up. Backup the entire system to an SD card is a must so that you can restore back to the state where no errors are found. Rooting allows you to do so as with Backup App like Titanium Backup or Nandroid Backup.

3. Most Important – Install Custom Rom
The ultimate goal of rooting your Android devices is to flash custom rom. Many has complaint of the bad of stock rom and one of the best solution is to flash highly-customized rom. With the installation of custom rom, you are expecting: better battery, butter-smooth performance (Jelly Bean’s slogan perhaps), customizable menu bar, customizable applications and more  (all good stuffs).

Disclaimer

It’s always risky to root your device and be warned that a failure may brick your device. In order to keep your device safe, please read carefully every single line of the tutorial and follows the steps exactly. We are not responsible for any damage to your device.

Compatibility

The tutorial and guide below is only compatible to Sprint HTC Evo 4G LTE model. It will not compatible to other devices.
Check phone model – Goto Settings -> About Device -> Model Number.

Requirements

  1. Windows-based PC
  2. Sprint HTC Evo 4G LTE
  3. Download and install USB drivers on PC. Download HTC USB Driver for Windows
  4. Enable USB Debugging on your device. How to Enable USB Debugging Mode on Android Device.
  5. Backup your personal data on phone to PC to ensure you keep a copy of your personal data (SMS, MMS, Contacts, Internet Settings, Photos and etc).How to Backup Personal Data On Android Device.
  6. Make sure your phone is charged to 50% to avoid interruption during flashing. How to Check Battery Level On Android Device.

Download

  1. Deodex or Odex Rooted HTC Evo 4G official firmware (Stock_3.15.651.16_Deodex.zip, 611.6MB or  Stock_3.15.651.16_Odex.zip, 616.22MB )Development page

Instructions: (From Custom ROM)

  1. Make sure you have follow steps above and enable all the necessary features before start.
  2. Do a Nandroid backup in CWM/TWRP recovery in case you need for restoration. (Optional)
  3. Connect your device to the computer via micro USB cable.
  4. Copy and paste the downloaded zip files to your phone’s internal SD card.
  5. Turn off your phone and disconnect from USB cable.
  6. Press and hold the Power + Volume Down Button to enter CWM/TWRP Recovery.
  7. In Recovery menu, you are always recommended to perform a full Wipe Data/Factory Reset to avoid crashing and ROM compatibility issue. You may skip this step if you upgrade your previous ROM version. (Use Volume key to navigate in Recovery Mode)
  8. Do Wipe Cache Partition – Select from the menu and select Yes to confirm.
  9. Go to advanced and do Wipe Dalvik Cache — Select from the menu and select Yes to confirm.
  10. From the main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the downloaded zip and click Yes to install.
  11. After the installation completes, go back to recovery’s main menu.
  12. Select reboot system now to reboot the phone.
  13. For first boot up, it normally takes longer time. Please wait patiently.

Instructions: (From Stock ROM)

  1. Unlock HTC Evo 4G bootloader. How To Unlock HTC Evo 4G Bootloader
  2. Root and install CWM/TWRP recovery. How To Root HTC Evo 4G and Install Touch Recovery On HTC Evo 4G
  3. Download root checker from Google Play to check your root status.
  4. Press Power + Volume Down button to enter recovery mode. Check whether CWM/TWRP recovery is successfully installed. Select Reboot system to reboot your device.
  5. Connect your device to the computer via micro USB cable.
  6. Copy and paste the downloaded zip files to your phone’s internal SD card.
  7. Turn off your phone and disconnect from USB cable.
  8. Press and hold the Power + Volume Down Button to enter CWM/TWRP Recovery.
  9. In Recovery menu, you are always recommended to perform a full Wipe Data/Factory Reset to avoid crashing and ROM compatibility issue. You may skip this step if you upgrade your previous ROM version. (Use Volume key to navigate in Recovery Mode)
  10. Do Wipe Cache Partition – Select from the menu and select Yes to confirm.
  11. Go to advanced and do Wipe Dalvik Cache — Select from the menu and select Yes to confirm.
  12. From the main menu in Recovery, select the install zip from sdcard, then select choose zip from internal sdcard, browse to folder location and select the downloaded zip and click Yes to install.
  13. After the installation completes, go back to recovery’s main menu.
  14. Select reboot system now to reboot the phone.
  15. For first boot up, it normally takes longer time. Please wait patiently.

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