Hi everyone I was just wondering if its possible to downgrade my nexus from 4.2.1 to 4.1.2 if I'm not rooted. I'm currently not interested in rooting my device so is there a way to do it without rooting/unlocking?
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Follow this http://m.pocketnow.com/2013/01/29/how-to-flash-nexus-to-stock
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desiresiscool said:
Follow this http://m.pocketnow.com/2013/01/29/how-to-flash-nexus-to-stock
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I can't flash things because I'm unrooted. So I don't think this method will work. Correct me if I'm wrong.
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Anyone know?
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I do not know for sure but I quite doubt it.
I am curious as to why you want to though. Not that there's anything wrong with wanting to downgrade, of course.
Have you tried one the took kits available? Check around in the Nexus 7 original development section. Look for Wuggs.
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Droid117 said:
Have you tried one the took kits available? Check around in the Nexus 7 original development section. Look for Wuggs.
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I looked at his toolkit but it basically says that I have to root in order to even use the toolkit so is there a way to downgrade without having to go through that rooting process? For now, I don't want to root my nexus
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Don't try to root it you'll only manage unlocking the boot loader then when you try and root it it will get stuck in fast boot mode I tried about every rooting program but it could be because my Comp is running windows xp lol
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served24 said:
I looked at his toolkit but it basically says that I have to root in order to even use the toolkit so is there a way to downgrade without having to go through that rooting process? For now, I don't want to root my nexus
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It's so easy to just reflash stock and relock the bootloader that you really have nothing to worry about. If you want unrooted stock 4.1.2 just unlock the bootloader, then flash the stock image of 4.1.2, then relock the bootloader after. It's a really simple process.
dstryrwiz said:
It's so easy to just reflash stock and relock the bootloader that you really have nothing to worry about. If you want unrooted stock 4.1.2 just unlock the bootloader, then flash the stock image of 4.1.2, then relock the bootloader after. It's a really simple process.
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Doesn't this void the warranty though? I know it did when i rooted my phone.
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Is this even possible or should I stop furthering this question?
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served24 said:
Doesn't this void the warranty though? I know it did when i rooted my phone.
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If i'm not mistaken, as long as you flash back to 4.2.1(which is the os it came with when u got it out of the box), and then re-lock the bootloader, unroot, then your warranty wont be voided mate. hope I helped.
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JohnMacky said:
If i'm not mistaken, as long as you flash back to 4.2.1(which is the os it came with when u got it out of the box), and then re-lock the bootloader, unroot, then your warranty wont be voided mate. hope I helped.
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Yeah, I've done this plenty of times with my Nexus 7 and even the Verizon Galaxy Nexus. As long as you're on a stock image with a locked bootloader, they won't give you any trouble or claim you voided your warranty, as there's really no way to tell. I've gotten into the habit of unlocking and rooting my device as soon as I get it, and if I find a problem I just revert back to a stock image, relock the bootloader, then send it back in. I have yet to have a single issue.
dstryrwiz said:
Yeah, I've done this plenty of times with my Nexus 7 and even the Verizon Galaxy Nexus. As long as you're on a stock image with a locked bootloader, they won't give you any trouble or claim you voided your warranty, as there's really no way to tell. I've gotten into the habit of unlocking and rooting my device as soon as I get it, and if I find a problem I just revert back to a stock image, relock the bootloader, then send it back in. I have yet to have a single issue.
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How do you save your stock image?
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served24 said:
How do you save your stock image?
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You don't need to worry about saving your stock image. The person above you is talking about saving the stock image to return to after flashing a custom ROM.
There is no way to revert back to 4.1.2 without root access. Doing a factory reset, about the only thing you can do without root, will only return you back to stock 4.2.1
My advice just stay on 4.2.1 whatever your issue is with it.
Otherwise use a toolkit. You will need a PC and the 4.1.2 image. Wugfresh has a website. I would start there.
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ezas said:
You don't need to worry about saving your stock image. The person above you is talking about saving the stock image to return to after flashing a custom ROM.
There is no way to revert back to 4.1.2 without root access. Doing a factory reset, about the only thing you can do without root, will only return you back to stock 4.2.1
My advice just stay on 4.2.1 whatever your issue is with it.
Otherwise use a toolkit. You will need a PC and the 4.1.2 image. Wugfresh has a website. I would start there.
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I actually was just referring to the stock images you can get directly from Google or from goo.im. It's easy enough to just use the 4.2.1 stock image from Google to just restore back to how it shipped, and then relock the bootloader.
served24 said:
Hi everyone I was just wondering if its possible to downgrade my nexus from 4.2.1 to 4.1.2 if I'm not rooted. I'm currently not interested in rooting my device so is there a way to do it without rooting/unlocking?
Sent from my Nexus 7 using xda app-developers app
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dstryrwiz said:
It's so easy to just reflash stock and relock the bootloader that you really have nothing to worry about. If you want unrooted stock 4.1.2 just unlock the bootloader, then flash the stock image of 4.1.2, then relock the bootloader after. It's a really simple process.
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Completely agree with this... I have, on several occasions, reflashed stock, switching between 4.1.2 and 4.2.1 - (for me, it was more of an exercise in learning about fastboot and adb... and making sure I had TRIED AND TESTED factory images on my laptop as contingencies should anything go wrong when I came to start flashing custom ROMs).
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You don't need root to flash a factory image... everything is done with fastboot; with the Nexus 7 in FASTBOOT/BOOTLOADER mode (from complete shutdown, press and hold Volume Down button... whilst holding, press the Power Button).
(Root is meaningless anyway, here in FASTBOOT/BOOTLOADER mode, since /dev/block/mmcblk0p3, the SYSTEM partition, hasn't even been mounted yet - so no SU binary available... whether or not it exists, it's sort of irrelevant).
- here, for example, is the flash-all script from 4.1.2 (nakasi-jzo54k)... (Nexus 7, WiFi model only).
Code:
fastboot erase boot
fastboot erase cache
fastboot erase recovery
fastboot erase system
fastboot erase userdata
fastboot flash bootloader bootloader-grouper-3.41.img
fastboot reboot bootloader
sleep 10
fastboot -w update image-nakasi-jzo54k.zip
After running this script (flash-all.bat if in Windows, or flash-all.sh if an Apple user) you can optionally choose to lock the bootloader with... (if you're concerned about warranty issues).
Code:
fastboot oem lock
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If it was the case you needed root to run...
Code:
fastboot flash [partition to be flashed] [IMG file to flash]
...you wouldn't be able to flash a CUSTOM RECOVERY like CWM or TWRP... and thus, you wouldn't be able to flash Chainfire's UPDATE-SuperSU-v1.00.zip (http://download.chainfire.eu/310/SuperSU/UPDATE-SuperSU-v1.04.zip) in order to gain root in the first place!... (you see the paradox!).
Rgrds,
Ged.
My N4 is coming Wednesday, I want to root it and flash the Xylon rom to it... only, last time I rooted was with the Droid 1 and I stayed stock...
My question is do I need to do an initial setup backup then root and flash the rom or can I backup then root then flash the rom and use that as my first setup?
You cannot backup without having root first. So you will lose everything. When you unlock the bootloader, everything gets deleted. That's why when you first get the phone you should root it. Then if you like you can backup the ROM in case that you ever want to go back to stock.
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Eddy130306 said:
You cannot backup without having root first. So you will lose everything. When you unlock the bootloader, everything gets deleted. That's why when you first get the phone you should root it. Then if you like you can backup the ROM in case that you ever want to go back to stock.
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I would like to correct you there. You can backup app data using Koush's Carbon app, which you can find on Google Play. Made by the same guy behind CWM. A very simple app that uses some sort of loophole to make backups even on non-rooted devices.
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Hey guys,
I just bought the nexus 4 from a guy and its working awesome. The only "problem" I have is that the guy before me was playing around with the nexus. And now I have a locked bootloader, no SU binaries/root but CWM?? Is it possible to have CWM with a locked bootloader?
Anyways, i dont want to play around with it because the original store that sold this nexus will blame me for playing around with it if something actually happens.
So can i update it to key lime pie when it comes out without any problems?? Or can i remove CWM without unlocking the bootloader(i have alot of apps)?
Thanks
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You can flash a ROM and then relock the bootloader. Just unlock it and start again
Nevermind
EddyOS said:
You can flash a ROM and then relock the bootloader. Just unlock it and start again
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Can i update it without removing the nonfunctional recovery?
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It's better to go back to 100% stock so you know exactly what's been done
You can always use this if you're rooted. https://play.google.com/store/apps/details?id=net.segv11.bootunlocker
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I want to take my phone back to sprint and have them give me a new one. Something is wrong with my speaker. So I wanted to uninstall the custom recovery and uninstall the superuser. How do I do that? Is there an RUU I can flash?
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aFoodStampBaby said:
I want to take my phone back to sprint and have them give me a new one. Something is wrong with my speaker. So I wanted to uninstall the custom recovery and uninstall the superuser. How do I do that? Is there an RUU I can flash?
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I did it this morning to confirm it was working, LIKE A CHARM
http://forum.xda-developers.com/showthread.php?t=2259513
Just began the RMA process with Google Play by ordering the replacement device. Now when I send back my faulty unit when the replacement arrives, in what state should I leave the software of the phone so that the RMA process finishes smoothly?
I'd imagine I'd have to flash stock rom+kernel, stock recovery, relock the boot loader, unroot, and possibly reset the flash counter (have no idea how to go about this last one). Anything I'm missing/feedback?
This is my first time going through Google's RMA process and I want it to happen as smoothly as possible. Thank you.
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Nexus phones dont have flash counters. All you need to do is flash the stock images and relock the bootloader.
A guide can be found here: http://forum.xda-developers.com/showthread.php?t=2010312
I've never heard about a flash counter on a nexus
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Chromium_ said:
Nexus phones dont have flash counters. All you need to do is flash the stock images and relock the bootloader.
A guide can be found here: http://forum.xda-developers.com/showthread.php?t=2010312
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You learn something new everyday. Thanks guys!
Lord Yurij said:
I've never heard about a flash counter on a nexus
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