Hello, guys today I’m back with an amazing method for Le 1s users as their mobile doesn’t support the VoLTE feature. So today I’ll tell you all an unofficial method to enable VoLTE in Letv Le 1s by installing the custom ROM. So here is a very easy and a safe tutorial.

What is VoLTE

VoLTE (Voice over Long-Term Evolution) it a standard for high-speed data transfer with wireless communication for mobile phones. Basically, it is based on IMS ( IP  Multimedia Subsystem) network.

Preparation to enable VoLTE in Letv Le 1s

Below are the few points you should keep in mind for a successful session.

1. Take a backup of your phone.
2. Your phone battery should charge 80% minimum.
3. Your device must have Custom Recovery like TWRP Recovery.

Download ROM for Letv Le 1S

File Name Download link
Letv Le 1S EUI 5.8.419D Dev Rom Download
Letv Le 1s TWRP Flash Guide Download
Letv Le 1s USB driver Download


How to install EUI 5.8.419D Dev Rom in Letv Le 1s

Step 1: Download EUI 5.8.419D Dev Rom. Then connect your phone to PC and copy the downloaded EUI 5.8.419D Dev Rom.zip into your Phone’s Internal Storage. Do not copy downloaded.zip into any folder or SD card!!

Step 2: Now switch off your device and long press volume UP and power button to enter into recovery mode.

Step 3: Your phone is now booted up with recovery mode. Now click on the wipe and go to Advanced Wipe. Then Select Wipe cache, Dalvik cache, System, data and swipe to confirm it.

Step 4: Now, Go to the main menu and click on Install option, then locate the downloaded EUI 5.8.419D Dev Rom.zip and select downloaded file and swipe to confirm flash. Then the installing process will start. Don’t interrupt this process, it might take 4-6 minutes to fully install it.

Step 5: After the Flashing process is completed, then wipe cache and Dalvik cache again and Reboot your device.

How to enable VoLTE in Letv Le 1s

After installing EUI 5.8.419D Dev Rom in your Letv Le 1s, Now you are ready to enable in Letv Le 1s.

Step 1: Now your Letv Le 1s is on EUI 5.8.419D Dev Rom. This rom is almost same as EUI 5.8.019S Stable rom, so no need to worry much about that!!

Step 2: Go to setting menu and click on Dual SIM & mobile networks. Now, select your 4G Sim like IND-JIO, then click on Access point name(APN).

Step 3: Now create New APN

Name: Jio

APN: jionet

APN type: default

APN Protocol: IPv4/IPv6

APN roaming protocol: IPv4/IPv6

Then click on Done and after create a new APN create one more

Name: ims

APN: ims

APN type: ims

APN Protocol: IPv4/IPv6

APN roaming protocol: IPv4/IPv6

Then click on Done. See in below image.

Step 4: Now, Go to setting menu and click on Dual SIM & mobile networks and Enable Enhance 4G LTE Mode. then go to call option and dial *#*#3646633#*#*. Now, you are in engineering mode.

Step 5: Then select IMS, click on the Common option. Now, select mncmmc check, then you will see mncmmc check option is On. You select mncmmc checkoff and you will see set successful pop-up. wait some time and you can see HD option for VoLTE.

Now your mobile is purely VoLTE and now you can easily use jio sim to make calls without Jio 4G Voice App, this procedure only works when your device is on, if you have rebooted or powered off your device then you have to follow the step4 and step 5 again.

I hope you liked this post and if you feel that this post helped you then please like and share this and be with us. If you feel any problem or want to ask a question just leave that below in the comment box.



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