[ROM][7.1.2][Santoni][OMS] ViperOS For Xiaomi Redmi 4X/4 [UNOFFICIAL]

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Senior Member
Sep 27, 2011
Ramakrishnan [emoji41 said:
;75181710]using the latest rom with anonymous kernel v2 always getting 1.8 Gb ram free . . awsome rom
Great kernel! I cannot find it here on XDA? And one problem: After flashing this kernel, I cannot access recent apps screen anymore. Instead, the hardware key opens the menu in any app - no matter how I adjust the settings. Any way to fix that? Thanks in advance.


Senior Member
Nov 1, 2016
i wanna using this ROM on My Redmi 4x, I'm using viper OS on Redmi 3S by Impulsar Build. our device detected as certified device on that ?

would you look up Viper OS by Impulsar, he can create custom ROM that can't detected as custom ROM by WhatsApp and Commerce App and get certified status on play store.
could build that ?

needs commerce app/wallet app/banking app working
we can hide root status using magisk manager but can't hide custom ROM status from that apps
maybe you can take his formula

regards, thanks before
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Inactive Recognized Contributor
Oct 21, 2012


May 1, 2012
I can't unlock my phone after resorte backup with twrp. Fingerprint is not working, code also not work. What to to?

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    This is ViperOS

    We are not responsible for anything that may happen to your phone as a result of installing custom roms and/or kernels. you do so at your own risk and take the responsibility upon yourself.

    "This is a user friendly thread. All feature requests will be heard and considered. I am not against anything that doesn't stray too far away from the original idea of the ROM! Helping one another is also encouraged! Please be respectful and you will always be treated the same way, we are all here for a good experience."

    We are a Brazilian team, ViperOS aims to bring stability and useful features. If you are looking for a stable ROM with true tested features, minimal bugs and no Lineage bloatwares, then this is the place to be.

    What is working:

    you tell me



    * Traffic indicators
    * Statusbar items
    * Clock & date
    * Battery icon settings
    * Carrier label
    * Quick settings personalization
    * Other statusbar settings
    * VPN icon toggle
    * Data saver icon toggle
    * VoLTE icon
    * Viper statusbar logo
    * Option to Display Data Disabled indicator Icons
    * Ticker
    * Heads up toogle, timeout and snooze function

    * Custom lockscreen settings
    * Lockscreen weather
    * Option to hide lockscreen clock, date & alarm text
    * Hide status bar on lockscreen
    * Hide power menu on secure lockscreen
    * Hide quick settings on secure lockscreen
    * Lockscreen flashlight, double tap anywhere to sleep and disable media image

    Multi tasking
    * Round button on recents
    * Recents style toggle: cards and grid
    * Recents membar

    * Beautiful black theme
    * Navbar enable/disable
    * Pixel navbar (with animation) toggle
    * Dynamic navbar
    * Navbar dimensions
    * Navbar button layout
    * Hardware keys binding
    * Hardware keys enable/disable
    * Kill app with back button
    * Power menu customization
    * Heads up toggle, timeout and snooze function
    * Reset battery stats
    * Wired headset: make ringtone audio focus customizable
    * Live volume steps
    * Hide arrows in network traffic indicators
    * Fingerprint authentication vibration
    * Toast icon switch
    * Advanced Bluetooth, Data, Wifi Toggles
    * Disable/enable screenshot sound
    * QS header icon settings
    * Header date and time positions
    * Unlock keystore with fingerprint
    * Ability to toggle vibration when double tapping power button for camera
    * Double tap to sleep on navigation bar
    * Drop Lineage LockClock, use OmniJaws
    * Drop AOSP Clock app, use from Google
    - Custom ambient display settings

    Many other customizations, install and take a look

    Installation Instructions:

    Download the Rom zip
    Wipe data, dalvik, cache, system
    Flash the Rom zip
    Flash the gapps
    Flash the fix for recent key button given in download
    Flash the Magisk or SuperSu for get root access


    ROM: ViperOS-3.1.1-Santoni_Unofficial
    Nano/Micro Gapps recommended

    Credits & Thanks:

    All ViperOS Team
    LineageOS team
    ResurrectionRemix team
    crDroid team
    And all other open source Devs/Teams I may have missed!

    Thanks to few of my friends who helped me to build my very first Custom ROM
    @ataberkozen without him it was not possible
    @wzedlare the man who gave us aprrox stable tree
    @hackslash for helping me out
    @nitin.chobhe for his awesome guide for Gcloud
    @jackeagle for his awesome rom cooking guide
    And google for helping me out also a TG group, if I forgot someone just pm me.

    Other links

    Telegram channel
    Google+ community
    ROM source
    Tree of all official devices

    XDA:DevDB Information
    ViperOS , ROM for the Xiaomi Redmi 4x/4

    Source Code: https://github.com/ViperOS-Project

    ROM OS Version: 7.x Nougat
    ROM Kernel: Linux 3.10.x
    ROM Firmware Required: Unlocked bootloader, TWRP
    Based On: LineageOS

    Version Information
    Status: Beta

    Created 2017-08-01
    Last Updated 2017-08-01
    Old builds


    Download ready, volte fix and most probably all, just flash the root method you want as magisk or supersu, and flsh recent fix. Clean wipe is recommended.
    He guys I am here with new update of viper update includes not many changes but minor and necessary
    1: Custom kernel included named Eximious
    2: IR blaster fixed for everyone

    https://www.androidfilehost.com/?fid=817906626617953190 download link is here

    Help me with whatever donation you can help me. It will help me to buy the server and continue on the development and maybe O soon for Santoni too. :)