Hey, thanks for posting. Just to contribute…
Tested this on my MTK6577 Feiteng gt-I93000 android 4.1.1 but first time sadly it didn’t work.
Tried it a few times (using normal mode), second time the script looked like it ran without problems with only one error in the process “mount: permission denied (are you root?)”
[size=medium]3rd time successfully root and superuser installed.[/size]
***(my phone problem is signal dropping & Restricted Access Denied)***
Will keep an eye out for developments
Cheers