Solved Letv Le 1s (X509/X507) Convert LTE to VOLTE With Root (Tested Solution)

[Mohd Saqib]

Letv Le 1s (X509/X507) Convert LTE to VOLTE With Root


Read Carefully And Follow


Step. 1 First Root Root & TWRP (X509)



Passward Download From Attachment

Step. 2 after rooting your device you should first install these 3 apps below from the play store
*Terminal emulator for Android
*Setting database editor
* ES file explorer

Step.3 open terminal app and grant root permissions if asked and type su and click enter
Then type
( pm grant by4a.setedit Android.permission.WRITE_SECURE_SETTINGS)
After writing this click on enter button.
Remember don't use brackets

Step.4 after clicking on enter you will see this
Root@x3_HX:/ # . Now open settings database editor

Step.5 after going to settings databade editor app you will see 3 option 1 system 2 secure 3 global. click on global

Step.6 after opening Global click on the top right side you will find edit option click on it then.
you have to scroll down the page and find _vt_enable=0
Change it to=1 and it will ask you to save it
Click on save it

Step.7 Now open ES file explorer then click on the top left side of ES file explorer a menu will opened. In this menu enable root explorer
After enabling it. Again tab on left side of ES file explorer then open device storage

Step.8 after opening device storage click on system .After opening it you have to open build.prop via ES note editor

Step.9 after opening build.prop click on top right side you will find edit option click on it
Now scroll down and find
ro.mtk_volte.support=1
And
Persist.mtk..enable=1
Make sure that both these are having =1 and if not change it to =1

Step.10 save this and close it.
After this open APN settings and click on reset after this reboot your phone
Step.11 after rebooting done .
Open the normal dialler and type
##3646633##

Step.12 after this the engineering mood will be open click on IMS
then click on call
Then click on the 2 option in the list
Then untick the first and third option
Then click on set


Step.13 after click on set click on back button and then click on common
Then click on mncmcc check
After clicking on it switched off this from on then
Click on set
After this you will see the HD sign opposite to 4G sign