For some of the ROMS that don't have init.d support follow this guide.
http://forum.xda-developers.com/showthread.php?t=2711680
And after you've created the init.d folder,
You repeat the process just add another code that will now be
busybox run-parts /system/etc/init.d2/
Make init.d2 folder ---> system/etc/init.d2
Set permissions to 755/rwxr-xr-x
And if you wish, you can add the powernap script (Originally for the Zte Warp)
and watch how long the battery will last.
Just keep in mind always have a backup just in case
Here to help if anything c:
http://forum.xda-developers.com/showthread.php?t=2711680
And after you've created the init.d folder,
You repeat the process just add another code that will now be
busybox run-parts /system/etc/init.d2/
Make init.d2 folder ---> system/etc/init.d2
Set permissions to 755/rwxr-xr-x
And if you wish, you can add the powernap script (Originally for the Zte Warp)
and watch how long the battery will last.
Just keep in mind always have a backup just in case
Here to help if anything c: