[Q] unroot nexus 7 without PC? - Nexus 7 (2013) Q&A

My nexus7 (2013) has a non functioning USB and I need to send it in for warranty repair. I cannot connect it to a PC and the otg cable no longer works
I used towel root to root, and then lock the bootloader today (originally used wugfresh to root, but after updating to 4.4.4 I lost root access) but am having trouble unrooting
Using super su the software hangs at the "uninstalling, please wait" message when trying to unroot
Is there a way to unroot the nexus 7 without a PC or the USB cable?

You can use OTA Rootkeeper to unroot, but what you're talking about is relocking the bootloader, which is related but different.
You could try this. I never have and so can't tell you if it works, but it's supposed to on the second-gen N7s.
https://play.google.com/store/apps/details?id=net.segv11.bootunlocker

The bootloader is locked, so that's not what I'm trying to do
I downloaded the ota rootkeeper (thanks for that, haven't dl that one yet) and it shows the device isn't rooted, root permission IS granted and system supports root protection
When I run root checker it shows device is rooted
Any idea how I can unroot so I can send back to asus and but appear to have rooted already?

Strange, OTA Rootkeeper should do the job. You clicked the button to delete su backup, right?
But as long as the bootloader is locked, don't worry about it. Put on a password so any repair techs can't boot into full Android. Odds are they wouldn't need to boot fully anyway, and if they did, when confronted with a password they'd just flash back to stock. They might do it anyway to ensure no problems from software. For this reason it's always advised to make backups before sending devices in.

Related

random noob questions...

OK,
1st Hi all and thanks for not bashing my lack of knowledge. I have done many searches and am now more confused than before.
I am comming from a droid X, I did the z4 root on it to get wifi tether working, it was on 2.2.1 I believe. Well it went very good, but I never got a push for an update. Got the new GN on verizon and tried to restore it back to stock, didn't work, so instead of selling it I gave it to my mom. Also, did this on a friends and he did get the update push and lost the root and superuser access.
This story is just so you know I am a complete noob. Other than following someones set by set on using Z4 I have really not done anything and have some questions on my new phone.
1. why would I want to unlock the bootloader?
2. after reading about the wifi hotspot by svtp do I need to root?
3. If i root and/or unlock the bootloader will this stop the updates from google (main reason I bought the phone)?
4. I am not into overclocking or modding but I want to be able to have wifi if I ever need it. That is the only thing I want.
Basically I am looking to unlock the wifi and still get all the google updates, is this possible? As of right now I think buying the svtp app is my best bet, I just don't want an unexpected bill showing up.
ok, still not rooted or unlocked. cannot get svtp to work wifi
Follow this guide --> http://forum.xda-developers.com/showthread.php?t=1382163
re #1: you need to unlock the bootloader to do pretty much anything non standard with your phone.
Since unlocking the bootloader wipes all data on the phone it's a good idea to do it early. You can leave it otherwise stock while you think about it, you can even relock it if you need to return the phone for some reason.
Neither unlocking nor rooting the phone will stop you getting the OTAs, it's custom roms that will do that. However most OTAs will stop your root access because they reset the permissions on your su files.
hth
Clancy_s said:
Neither unlocking nor rooting the phone will stop you getting the OTAs, it's custom roms that will do that. However most OTAs will stop your root access because they reset the permissions on your su files.
Click to expand...
Click to collapse
Just to add further to this... not only will custom ROMs stop you from getting OTA updates, having custom recovery (ClockworkMod) will prevent them from applying, even with the stock ROM. If using a stock ROM with custom recovery, you'll need to do the update manually. If you wait until you get the update notification, your phone should have downloaded the update to /cache. You can then use the custom recovery to apply the update. Alternatively, you can look on these forums for someone to post the URL to the OTA update zip file, download it, and flash it manually (this way you don't need to wait until your phone gets the update, you can download it and have it sooner).
In either case, you'll usually need to re-root, as stated. This is easier with a custom recovery, because you should just have to flash superuser immediately after flashing the update, before rebooting.
Until CM9 is stable, I'm running the stock ROM with ClockworkMod recovery. I can download the OTA updates manually and flash them with ClockworkMod then flash superuser and I'm good to go. Custom recovery makes it nice and easy to retain root, as well as the ability to do nandroid backups, etc.

Towelroot question

I have a question about this whole Towelroot thing. If I use it on this new att G3, and an update comes from att, would the phone still be able to accept the ota update?
I'm thinking yes, but just want to confirm.
If you root, you lose OTA updates.
Is there a video showing Towelroot for the G3? And then I think you have to install Superuser somehow?
It is all new to me but I would have to decide about not getting updates afterwards but I may cave and try it anyway if it is straightforward.
Well since this method does not mess with boot loader or recovery I figured you still could.
I'm also new to rooting the G3, but if I understand correctly to be able to receive OTA updates you need to unroot, either via Superuser or the LG PC Suite, both methods will not wipe your device. After updating just reroot again.
Bus Driver said:
I'm also new to rooting the G3, but if I understand correctly to be able to receive OTA updates you need to unroot, either via Superuser or the LG PC Suite, both methods will not wipe your device. After updating just reroot again.
Click to expand...
Click to collapse
Assuming the root is not patched in the OTA

[Q] Root didnt work, want to unroot and lose custom status

Tried to root my Galaxy Note 2 following this site galaxynote2root.com/galaxy-note-2-root/how-to-root-galaxy-note-2-easiest-method. Everything went fine. But when the phone rebooted, I was immediately greeted with a security warning. "Unauthorized access to a secured area has been blocked" Also informed that SuperSU is missing its binary, and cannot be installed by SuperSU. So, I rooted it, but I don't have root access. Everything I've found to try and fix this requires root access, that I don't have. I've given up on trying to root this phone, but I can't unroot it without root access. I would like to unroot it so I can try to update the software. How can I fix my SuperSU binary issue? Please, explain this to me like I'm a retarded noob, since I am in fact a retarded noob
thechu said:
Tried to root my Galaxy Note 2 following this site galaxynote2root.com/galaxy-note-2-root/how-to-root-galaxy-note-2-easiest-method. Everything went fine. But when the phone rebooted, I was immediately greeted with a security warning. "Unauthorized access to a secured area has been blocked" Also informed that SuperSU is missing its binary, and cannot be installed by SuperSU. So, I rooted it, but I don't have root access. Everything I've found to try and fix this requires root access, that I don't have. I've given up on trying to root this phone, but I can't unroot it without root access. I would like to unroot it so I can try to update the software. How can I fix my SuperSU binary issue? Please, explain this to me like I'm a retarded noob, since I am in fact a retarded noob
Click to expand...
Click to collapse
Download Odin. Download the factory image from sammobile.com. Odin the stock image. Problem solved
Or if you still want root, download the Mr robinson T-Mobile prerooted Odin image and flash that.
Fyi i accidently hit the thanks button. I guess you got a free one on me

Any way to secure a rooted phone? Does root break things?

I am considering this phone as a replacement for Note 7, so I have some questions about root.
Does it break Android Pay, and if so, is it permanent? Like does it fry "secure element?" Or can one root, install adblock .hosts, but then reverse the effect?
Also, if the phone is rooted, can it still be secured? So, if I lose my phone, can someone plug it into usb and flash/wipe data? Or can it be secured, so that it could only be tampered by the owner?
Thanks.
nabbed said:
I am considering this phone as a replacement for Note 7, so I have some questions about root.
Does it break Android Pay, and if so, is it permanent? Like does it fry "secure element?" Or can one root, install adblock .hosts, but then reverse the effect?
Also, if the phone is rooted, can it still be secured? So, if I lose my phone, can someone plug it into usb and flash/wipe data? Or can it be secured, so that it could only be tampered by the owner?
Thanks.
Click to expand...
Click to collapse
Gentle bump.
At the current moment there's currently no root yet (although Chainfire did got seamless root working with boot image mods but is still working on getting everything done) and there's currently no custom recovery.
Also, Google hasn't used SE for the longest time since Verizon and other carriers has been locking out that chip on the SIM card for a long time. Instead they do some sort of emulation of sort which is stored in the data encrypted so if you ever wipe your phone you don't have to worry about the SE being all jacked up without unregistering it first.
In terms of being able to use Android Pay, it does check to see if the bootloader is unlocked but there's already a kernel out that bypasses that check and I'm able to use it just fine so even if you are rooted I'm sure you could just use that kernel and it'll still work (I'm not able to test with root since the root isn't publicly available yet but usually you can go into SuperSU and tell it to hide su and android pay should still work if it does check to see if su is installed on top of the bootloader being unlocked). So there's always ways around it.

How to root without unlocking and wiping data

Hi, I would like to root my Moto Z2 Play but I don't want to unlock bootloader, because all of my data will be actually formatted and I don't really want to set up things again.
With that, I would like to ask if there is any option to root my phone straight from Android UI.
So I don't have to use any PC to root this phone.
Edit:
Actually with rooting come on place one important question.
This question is about: Is the phone able to receive updates released by manufacturer to moto Z2 play?
I'm asking because when I was rooting my Samsung phones on every single of them when they are rooted they are unable to receive updates by manufacturer so I literally had to plug the phone into my PC and Force updated it via Samsung provided program (Kies).
This was really painful so I am asking just before I will actually root it because I want the stock ROM and all of its official updates.
So I'll be really thankful with any answer on that question.
To root you must unlock the bootloader.
And you will receive OTA's, but if you install those, the phone will most probably brick. So, don't even try to install them.
As long as there is no vulnerability found in Android 8 that could actually be used to root, there is no other way than to open the bootloader which enforces a factory reset.
But if rooted properly with Magisk and as long as you only boot TWRP but never install it, OTAs should work. At least the only reason for bricking I know is when you try to upgrade after a downgrade since the updater seems to not check the bootloader. And with a downgrade to a version with an older bootloader something goes haywire which bricks the device on next update and you'll need a blankflash to fix that

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