Thanks for clarifying.U need to rename , those files and remove the _E1FF_F. then copy all files as per the folder.
yes you need to copy all files. For second sim , u need to edit and replace the 'subscription 1' file, under /data. And finally yes its long process, but it is worth the effort, since volte, wifi calling and 5g(depending on region and coverage) can be activated via this method, be used for what the price we pay for this phone.
"For second sim , u need to edit and replace the 'subscription 1' file, under /data", do I need to rename that file on laptop with this name i found in the phone and then upload it there after deleting it in phone? Sorry, I didn't fully understand what I need to do for this. Could you please elaborate a bit more?
Additionally, when I rename the files and remove the suffix on laptop before uploading, won't the files in the 2 respective mcfg folders have same names for quite a few of the files and keep overriding each other when I indeed upload? Will this still make it work for both the SIMs?
1. Had to reflash the whole firmware and repeat this whole process as the networks weren't getting registered for some reason. Renamed the files and uploaded just Reliance and VoLTE only is working (no VoWifi).
2. For Airtel to work (haven't added these files to the phone yet as I am not sure how to add given the same filenames and it being getting replace by one another), what exactly do I need to do so that Reliance also keeps working? @johndaniel)