How to Update HTC Evo 4G LTE with Viper 4G Custom ROM Firmware

EVO 4G LTE LogoHTC EVO 4G LTE users can now benefit from the latest ICS firmware version of Viper 4G. Unfortunately, there is no estimated time on by when there will be an official firmware of Jellybean 4.1 for the device by HTC but as in when it comes you can update your phone with the custom ROM firmwares which are here to bring the seamless customization in your device. Over a period of this article we will be checking out on what are the features of this custom ROM firmware along with the detailed guide on how to apply this firmware update. Please note that this update should be strictly applied the devices which are having the model number as HTC Evo 4G LTE. It was the last time when we saw on how you can update with the latest version of ICS 4.0.4 firmware version, not official though. For your convenience we have also mentioned the screen captures on how this custom ROM firmware looks like.

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Features of Viper 4G Custom ROM Firmware:

  • Based on HTC_SPRINT_1.22.651.3 RUU
  • Deodexed & Zipaligned SDK r20
  • SuperSU v0.92 – credits Chainfire
  • Persistent ADB enabled
  • Init.d support
  • Busybox
  • Memory optimizations
  • Ramdisk Tweaks
  • Venom Tweaks – HUGE collection of customizable tweaks
  • Venom HUB! – download themes/read news/send feedbacks directly from your phone
  • Extended Quicksettings
  • Advanced Power Menu
  • CM statusbar brighntess mod
  • Added secure and blocklist folders to message app
  • All Market apps Updated to latest
  • Latest hosts file (Adaway)
  • Choose between Apex or Nova launcher in desense
  • Custom Venom Package Installer

Disclaimer: Follow all the instructions mentioned in this article as if there is any damage caused due to not following instructions then we shall not be held liable or responsible. Just in case if you face any issues then we will try our level best to address the same.

There is a probability that the data in your device may get lost or corrupted, so it’s better to back up all the data present in your device manually with the help of below mentioned instructions. Don’t use HTC Sync to back up the data.

SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log - Call Log and Restore
Images, Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names

From the path “Settings > Applications > Development > USB debugging”, enable USB Debugging Mode in your HTC Evo 4G LTE. Also, you need to ensure that the minimum battery charge left in your phone is not less than 40% or else the phone may get turned Off in the middle of firmware update.

Before you proceed to the instructions mentioned in the next page, you need to ensure that the device is rooted which you can check with the app “Root Checker” from Google PLAY Store.

So assuming that you have followed all the above mentioned instructions, you can now proceed to the next page where we have summed up a detailed tutorial on how to apply this firmware update.