Root Possibility of a Custom Update?

[biledigger]

Ok. I have seen just about everyone getting the b12 update and not being able to root.

Is it possible to take the 192 Mb update package out of the system cache folder and customize it with supersu and twrp hidden inside of it to force the system to be rooted and have the custom backup?

 

[9h0s7]

That's a pretty good idea, you should give it a shot. Let us know how it goes.

 

[biledigger]

It was a suggestion lol. I'm not capable of any of it ATM. I sold my laptop just so I could pay rent and provide a ceiling over the heads of my children.

Family first priorities.

 

[scary alien]

Guys,

I've moved your thread over here to the root area for the ZTE Zmax.

Is it possible to take the 192 Mb update package out of the system cache folder and customize it with supersu and twrp hidden inside of it to force the system to be rooted and have the custom backup?

Yes...but...

...that assumes, however, that you're using a custom recovery to install/flash it, otherwise, a modified flashable .zip file will/can not be installed by the stock recovery (signature checks prevent this).

"Merging" the functionality and files from the UPDATE-SuperSU-v#.##.zip file with your OTA's .zip file is possible, but the more straightforward and less error-prone way would be to flash the flashable .zip files separately (i.e., first the OTA (that you'd surely have to modify anyway to get it to pass some of the initial assert checks for ro.build.fingerprint, etc.) and then the SuperSU .zip file.

 

[Masterchief87]

I know how to make an updater-script for ROMs and flashable mod zips(stuff like copying files & directories, deleting files & directories, and setting permissions), but I have looked inside the updater-script for this update zip and it is infinitely more complex than a ROM updater-script. There must be a thousand commands or more inside. Instead of just replacing files it patches files after verifying the checksum for every file it patches. This stuff is way beyond the skill level of your average independent developer who builds ROMs and recoveries. I'm guessing that they could have made a more simple update zip that just deletes old stuff extracts new stuff and sets permissions but it would be a lot bigger file so they did it the hard(really really hard) way in order to cut down on the size of the update and save bandwidth. Also, all that the update does is block root, prevent the APN tweak for tethering from working, and make some of the popups like the low battery warning look like a throwback to the days of gingerbread. This update is more of a downgrade than an upgrade. I also noticed that my phone ran slower on b12 than it did on b06.