Returning to stock version question - Desire 820 Q&A, Help & Troubleshooting

Is there anyway to know which part of the system is modified? If not, does removing root and returning the parts of the firmware make it stock and remove the modified status to be able to receive ota updates?

only stock

If you’re looking to get back to stock for ota updates. I would wipe the filesystem and re-image with official stock firmware

Related

[Q] Rooted at Jellybean, no KitKat update from AT&T. How to get KitKat

My galaxy siii was rooted before kitkat was out, and I have been using it until now and have not yet update to KitKat yet because AT&T is not part of it any more.
How do I get KitKat on my phone? Do I have to unroot the phone and put it back into AT&T mode to download or what should I do?
this might help.
remember:READREADREAD
BACKUPBACKUPBACKUP
http://forum.xda-developers.com/showthread.php?t=1802160
good luck
err on the side of kindness
You will need to unroot your phone and have the stock recovery.
Thank you for both replies gentleman
audit13 said:
You will need to unroot your phone and have the stock recovery.
Click to expand...
Click to collapse
I might add to this...if you removed any stock carrier or vendor apps from 4.3 while being rooted...you'll have to restore them via a Titamium Backup or some other way or the OTA update will not install properly. (I realized that the OTA update from 4.3 to 4.4.2 will patch these apps to update them to 4.4.2 compatibility)
If you can't do that or if its unreasonable to do that based on the way the phone was modified while rooted...I suggest flashing the stock 4.3 rom via Odin and then take the OTA.
Id recommend flashing the 4.3 firmware via Odin to begin with. Its starting to seem like a lot of people who even just have to unroot are having problems with the ota. I think Odin flashing stock 4.3 will give the best chance of a successful update.
mwrobe1 said:
I might add to this...if you removed any stock carrier or vendor apps from 4.3 while being rooted...you'll have to restore them via a Titamium Backup or some other way or the OTA update will not install properly. (I realized that the OTA update from 4.3 to 4.4.2 will patch these apps to update them to 4.4.2 compatibility)
If you can't do that or if its unreasonable to do that based on the way the phone was modified while rooted...I suggest flashing the stock 4.3 rom via Odin and then take the OTA.
Click to expand...
Click to collapse
I am having this issue. I rooted on 4.3 and removed Google books and newsstand. I then uprooted and did a factory reset , so everything in download mode says "official" but the apps were still missing so I downloaded them from the play store. My question is will this let me get the OTA now or do I have to push the apps to the /system directory somehow? Also if I flash the 4.3 ODIN tar file, will it trip my warranty bit? It's at 0 right now and want to keep it that way until my warranty is up.
The firmware shouldn't trip the bit, but I can't promise that. Im sure its confirmed one way or the other in its thread though.
As for those apps, they'd have to be system apps, so just installing normally won't help. More importantly though, they would also need to be the same version that was originally built into the firmware. The apps you mentioned have seen many updates and using the current versions will not work.
I got the phone 2 weeks ago and it came with 4.3 installed on it. Would I be able to use the current version and just push them to /system/app with titanium backup? I am trying to get the OTA without tripping any warranty or security measures.

Reverting to stock for lollipop?

Do we have to revert to stock Rom to upgrade to lollipop? Was wondering if it's the same with the htc eye update wherein you have to go back to stock and update manually before flashing the custom rom. I am having an extremely difficult time going back to stock for some weird reason.
For every major update on this device so far (AFAIK) HTC has updated the firmware. So yes, my guess will be that you will need to update firmware to run Sense Lollipop custom ROMs And unless you s-off and therefore able to update the firmware manually; your alternative will be to return to stock ROM and recovery and OTA to Lollipop.
Ohhh, Been trying to revert to stock but it just doesnt work. thanks
If I'm just rooted and not s off stock Rom and all that anything I need to do to get the lollipop update or just wait for it to hit my ota on my phone?
SOEBOMB said:
If I'm just rooted and not s off stock Rom and all that anything I need to do to get the lollipop update or just wait for it to hit my ota on my phone?
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Click to collapse
Just wait for it. If you're stock then you shouldn't have a problem. The only real headache will be how long you have to wait to get the OTA.
Stock: Stock ROM, Stock Recovery, No changes to system i.e no xposed framework. No deleted pre-installed apps(Facebook etc) no changes to files like platform.xml, build.prop etc.
Being rooted on the other hand shouldn't cause any problems.

[Q] OTA update to GPE 5.1, I have 1 question in need of answering

I just got an OTA notification for 5.1 too. I'm running GPE RUU rooted 5.0.1 with the latest TWRP recovery.
I got the firmware off of the link below
http://graffixnyc.com/m8.php
It has the stock recovery listed as version 3.11.1700.5. Should i flash this version or a more recent one?
Thanks in advanced for the help!
To flash the OTA you HAVE to bee 100% stock, not even root. OTA updates changed in Lollipop and if anything is different from the original system image it'll fail
EddyOS said:
To flash the OTA you HAVE to bee 100% stock, not even root. OTA updates changed in Lollipop and if anything is different from the original system image it'll fail
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Click to collapse
I don't think that is the case regarding root. I think installing the update will mean I will loose root but as long as I have a stock recovery and system it should install. I'm just not sure about which version recovery to use..
bentez2003 said:
I don't think that is the case regarding root. I think installing the update will mean I will loose root but as long as I have a stock recovery and system it should install. I'm just not sure about which version recovery to use..
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Click to collapse
Nope, it's ALL changed. In Lollipop if you're rooted, it'll fail. You HAVE to be 100% stock. It wasn't an issue pre-Lollipop, though
EddyOS said:
Nope, it's ALL changed. In Lollipop if you're rooted, it'll fail. You HAVE to be 100% stock. It wasn't an issue pre-Lollipop, though
Click to expand...
Click to collapse
Does that mean that the only way to upgrade now for people who use root, Xposed, etc. is to do a Titanium Backup and then run a full RUU upgrade to the new image?
Backup your data, restore your stock backup (which you all made, of course), restore stock recovery and then apply the update and restore your data/re-root

TWRP=No OTA for you

This is a public service announcement to save people headaches. RTFM. You cannot ever now, or in the past, take an OTA with a custom recovery. You must always have a stock recovery and system to do so. Period. If you do install a custom recovery, freeze the update center with Titanium, Rom Toolbox, or the like, so that you will remember you have a custom recovery and not accidentally take an update.
I hope this helps someone out there
So what is the simplest way to update to the OTA firmware with a phone that is rooted with twrp, and a custom ROM? Is there a way to disable twrp without having to un-root? That way it might be possible to update to the OTA firmware. Please correct me if I'm wrong.
Grizzie said:
So what is the simplest way to update to the OTA firmware with a phone that is rooted with twrp, and a custom ROM? Is there a way to disable twrp without having to un-root? That way it might be possible to update to the OTA firmware. Please correct me if I'm wrong.
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Click to collapse
.this is referring to stock software updates, unless it's updates of the rom, which you won't even receive if you're on a custom rom...to update a custom rom, you just download the updated version, or the OTA if the rom is so capable, and flash it in twrp like the first version you downloaded
Grizzie said:
So what is the simplest way to update to the OTA firmware with a phone that is rooted with twrp, and a custom ROM? Is there a way to disable twrp without having to un-root? That way it might be possible to update to the OTA firmware. Please correct me if I'm wrong.
Click to expand...
Click to collapse
Wait for a flashable zip for TWRP. You can revert to stock to take an OTA. Being rooted is not a problem per se, it's the custom recovery and having non stock roms. In theory you could flash the stock recovery and bootloader and then take an OTA. However, not having stock system/apps could likely create havoc
In case you do happen to try and install it, here's a fix for your bootloops: http://forum.xda-developers.com/showthread.php?p=60117595

OTA Update

I have rooted my Nexus 7 wifi 2012 tablet with TWRP
I don't want to keep un-rooting, applying ota updates then re-rooting my tablet. Is there an easy way. Maybe modified images i can use on a rooted tablet which i can install via the install option in twrp recovery loader.
I also notice that Nexus root tool kit has a ota sideload update option in the advanced menue.
So my question is where are the modifies ota update files if they exist as I don't want to keep un-rooting, rerooting each time to apply official ota updates. I have searched the net and can't find modifies ota updates?
My OTA failed due to root and modifications so I extracted system.img and boot.img from the 5.1 tarball and flashed them using Nexus Root Toolkit. Works well.
I'm going through the same issue - I want to keep running stock, but every time an OTA update comes in, it bugs me for an update until I go through the whole process of finding the files elsewhere, using the Toolkit to flash them etc etc.
Is there a better way to do this automatically? Can I find the downloaded OTA package on the Nexus and just flash it from there?
Since Lollipop, you can't take an OTA in any way (official or sideload) if you've modified your system. Rooting, custom recovery or kernel. Unrooting does not help since the system already has been modified.
Easiest way to upgrade and still keep your data is to flash the factory image but leave out userdata.img. This can be easily done through NRT (No wipe mode) if command prompt is scary. Yes you'll have to reroot... But hey, this is a Nexus, it's easy.
I assume that means waiting for someone to post the update?
If you want to wait for someone to make a prerooted image, then yes. Otherwise just download the official factory image (Google it) and go for it.
Google doesn't always release OTAs and factory images at the same time, so some waiting will probably always be involved...
Drives me crazy. TWRP used to be able to intercept a OTA flash, flash the needed images, detect you lost root and ask to restore root.
Somewhere that disappeared.
I just flashed a very old stock and took every OTA to 5.0.2, rooted, setup... now getting bombarded with 5.1.1 update notification. Ugh
Didgeridoohan said:
Since Lollipop, you can't take an OTA in any way (official or sideload) if you've modified your system. Rooting, custom recovery or kernel. Unrooting does not help since the system already has been modified.
Easiest way to upgrade and still keep your data is to flash the factory image but leave out userdata.img. This can be easily done through NRT (No wipe mode) if command prompt is scary. Yes you'll have to reroot... But hey, this is a Nexus, it's easy.
Click to expand...
Click to collapse
I need to flash the latest lollipop image to my rooted nexus with TWRP. I know where to find the images but don't remember how to flash it. What exactly are the steps and how do I leave out userdata.img ?
And what are the steps to reroot lollipop?
Thanks
i keep getting the offer to download the 5.1 update but when i do it dloads it then tries to reboot into recovery to flash it but it obviously boots into TWRP recovery which is no good.
So the question is when it dloads the update where does it dload to?
and could i flash it from TWRP if i find it?

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