It looks like Sprint is still working on the Android 6.0 M update for Its LG G3 LS9990 phone.
The build number of Sprint G3’s next software Update, namely LS990ZVd, was spotted in the latest UA Profile on Sprint official website. We also noticed that the ZVD RDF was posted On Sprint website, and it is accessible now.
Remember the ZVC Update that brings Android 5.0 OS to the Sprint G3 LS990? The ZVC Was posted around Oct 20, and then about several weeks later, Sprint released the ZVC Update.
By the way, We did not found the ZVD Source code at LG Open Source code website.
It is possible that the LS990ZVD is the Android 6.0 M Update for Sprint G3.
As already reported on Sprint’s own site, The Update in the works and it is coming.
I’m hoping that Sprint can release the Android 6.0 M Update by the end of this month.