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Changelog here:Is the newer 1.51 better with bug fixes?
edited: found the link, but not sure if I should wait for more errors to be fixed or get it now?
[2013.07.29] SuperSU v1.51 - xda-developers
I'm using 1.51 w/o issues.
Not a typo. adb push will copy the SuperSU update.zip install file onto the virtual sdcard on your tablet. Otherwise when you try to install SuperSU from TWRP recovery, it won't be able to find the file to install. Alternatively, instead of doing the adb push, you can turn on MTP mode in your tablet and drag and drop onto the Nexus 7 MTP folder. Somehow you need to get the SuperSU update.zip onto the tablet. I just suggested one way of doing it.I don't quite get the first part " adb push UPDATE-SuperSU-v1.51.zip /sdcard/ " since I don't remember seeing this step when unlocking the bootloader (do you mean click install on TWRP, but that don't sound right as that step it listed at the latter step below), so I presume, boot in bootloader mode, then how do I push UPDATE-SuperSU-v1.51.zip /sdcard/ ? Or was that an typo?
Assuming you *flashed* TWRP onto your tablet's recovery partition (ie fastboot flash recovery twrp.img) You can take your TWRP backup (of your original tablet software) and restore it. That will give you stock everything, except for recovery, which TWRP doesn't have an option to restore (even though it has one to back up). To get full stock, you'd then have to use fastboot to flash the stock recovery image you backed up with TWRP in the first place. You can do this withyou mentioned to restore back to stock android I need to reflash it with a clean stock image since you said my way of backing up the stock image won't let me restore it like that with TWRP restore. So don't that kind of defeat the purpose. Scond thought, well it let me save an stock image that I can transfer to computer in case I need it but to restore it, I need to reflash it. Much more trouble some than to run a Custom Recovery right? Oh well.
Code:
adb reboot bootloader
fastboot flash recovery stock-recovery.img
Now if instead, you left stock recovery on your tablet and just temporarily ran TWRP to make your backup and install root (ie fastboot boot twrp.img), then your stock recovery is still on the tablet, untouched. If you get an OTA (and assuming you haven't removed or modified any of the OS files) then the OTA will install correctly. If you want to make another backup or do the restore, then you need to connect to a PC and type
Code:
adb reboot bootloader
fastboot boot twrp.img
It really just depends on what you are doing more often. If you are making full nandroid backups all the time, put recovery on the tablet. If you just wanted TWRP to make that initial nandroid backup and install root and don't really have a need to run it all the time, then I'd suggest you don't flash it onto the tablet, just run it from the PC when you need it. This will allow you to get the OTAs when they come w/o needing to restore stock recovery.
Personally I only use TWRP to make the initial backup of my stock software. After that I probably only make full image backups once every 3-6 months. In the interim, I'm mostly backing up my data on a per app basis using Titanium.
If you flash twrp.img onto the recovery partition, I would suggest you flash the stock recovery back onto the tablet before accepting any OTAs. You don't need to flash the whole stock ROM onto the tablet to have the OTA install successfully. You just need to make sure you don't modify or delete any of the original OS files (you can add files w/o issue for the OTA, like adding root files)When enabled custom recovery doing it the other way (with TRWP flashed), if I need to restore back to stock do I also too need to reflash it with a clean stock image? If yes too, then I don't feel too bad doing it the other way. =)
It probably works fine. I always do my installs by hand so I know what is going underneath the hoods. If it is a complex install prone to errors, I might run or write some tool, but Nexus is extremely easy to work with, so doing it by hand is perfectly reasonable and much more educational.Also what you think of the new Nexus Root Kit http://forums.androidcentral.com/go...hacks/303574-nexus-root-toolkit-v1-6-8-a.html