How to enable VOLTE easily in LeEco Le1S(Both TWRP and ROOT)


LeEco fooled us a lot, right? And they still won’t accept that LeEco Le1s supports VOLTE but Thanks to Devs , we have the VOLTE working on our Le1s. You will need some stuff before you actually start enabling VOLTE. We will be sharing the TWRP method here-


  • A Le1S with TWRP FLASHED
  • Stock Rom installed, either 17S or 19S version
  • A flashable zip file that you can get from here. (Download according to your version!)


  1. Reboot to your TWRP from the software update App.

  1. Click on INSTALL>and then move to the directory  or Folder where you have downloaded the ZIP file.
  2. Select the file and swipe to install. Reboot after installing.
  3. Now when your phone reboots, Go to settings> Dual Sim and settings> Click on JIO > APN> and click on Reset.
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  1. Now after resetting APN settings, open the phone or dialer app and type *#*#3646633#*#* and Go To  IMS > Call > UA_call_amr_fmt_variant —- Untick (Remove) 1st and 3rd option — Click on SET


2.Now press back key twice and you will be back in IMS tab then click on COMMON tab. Then            click on  operator_code — Select VoLTE_Operator_RJIL —Click on SET (scroll to                  bottom)

  1. Come back once and Click on mnsmcc check — select Off — Click on SET

  1.  HD icon should now appear in your status bar. You have successfully activated VoLTE.
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Here are some Cons-

  • After reboot you need to repeat engineering mode steps i.e Step 5,6,7.
  • Flashing wrong zip may brick your phone (We will not be responsible). Make sure you flash the correct zip file.
  • Some people are facing soft reboot bug, so i would suggest you to Go with ROOT method.(The creator of this zip is trying to figure out the problem)

Link to Video tutorial by a friend-



  • SetEdit app, get from here.
  • Terminal Emulator, get from here.
  • X-plore app, get from here.


  • Open terminal emulator, type these commands as they are-

su (press enter and grant access)

pm grant by4a.setedit android.permission.WRITE_SECURE_SETTINGS (press enter)

  • Now, open setedit and in globval change, “value of volte_vt_enabled” to 1 from 0 and save.
  • Now open build.prop using Xplore app and change value of “persist.mtk.volte.enabled” to 1 and save it.
  • Now, head over to settings> Dual sim and mobile network> Jio>APN> reset.
  • And then again ENGINEER MODE SETTINGS which are given above^.
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  • Some users who flashed TWRP zip file are facing restart issue, not all. The creator of that zip file is working on a universal zip. Till then its your call to choose whichever method you feel good.

So, guys that was pretty much it. Now enjoy that free calling without that annoying JIO4Gvoice App  untill Airtel or TRAI doesn’t screw it up. Share with your friends and do comment below what would you like to see in our next post.


  1. Hello brother,

    I have done whatever u said in this video but prior to that using recovery mode I have installed the Le 1S EUI 5.8.419D Dev Rom .

    Now Iam suffering with the issues like
    chinese apps, No playstore, some options show in chinese language,
    Fast charging option missing,

    Managed to installed playstore.

    I just able to see a option enhanced 4g LTE mode and nothing else with which u will have unticked 1st and 3rd option but everything u shown in the video has to be done and as like everybody the settings will go when restarted.

    Even for the development version also has to suffer this issues? If YES

    Then whats the use in installing this ROM? and what are the side effects of using this? I cannot see my imei also instead some bido imei it shows.

    Can u help me please, what shud be done?

  2. Hello
    I am getting some problem in this while changing the value of volte_vt_enabled” to 1 from 0 this message is flashing on my screen “You do not have permission to edit this table try executing this command from advertisement shell”
    Help me out in this

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