Warning: We gammerson.com is not responsible, if you damage or brick your device. Do it at your own risk and follow the instructions properly.Make sure to doing backup before doing anything.
Now download and flash Android M 6.0 Marshmallow Custom rom for Micromax Unite (A106) InspiredSix rom by XDA dev Shiva sai.If you are running on android lollipop or kitkat you can upgrade it to latest android Marshmallow rom By downloading Android M 6.0 rom and flash it in your micromax Unite 2 (A106) through any custom recovery for e.g. TWRP or CWM.
This is the themed Android Lollipop 5.0 rom to Marshmallow 6.0 and yes it looks very similar to android m.But is this rom features are not there like Tap Search and other features present in android m.Follow below guide to flash android M in Micromax unite 2.Note that you must be rooted and have a custom recovery install in it.
1.Download Android M 6.0 Rom for Unite 2 (A106) and keyboard Fix from below link given in download Section.
2.Now place the Android M 6.0.zip The rom and zip file in sd card.
3.Now reboot to Recovery mode and flash InspiredSix.zip rom in your device.
4.Then flash Keyboard fix.zip from recovery in it.
5.Now Clear cache and Clear Data.
6.Reboot your device.Done! you just flash Android m theme rom in your Micromax Unite 2.
Note: First boot will take a Little time to boot so be patient.