1: will unlocking the boot loader prevent me from OTA? And let's say I do get an OTA in the future with a unlocked bootloader, will the boot loader "relock" itself ?
2: If I root, can I use OTA, and will it keep root.
Thanks !
Sent from my Nexus 4 using xda app-developers app
1. the state of the bootloader does not affect OTAs
2. don't know
I'd like to know this as well. I've rooted and am getting a nag to apply the update but it doesn't seem wise until I have the answer to your 2nd question
Sent from my Nexus 4 using Tapatalk 2
i believe neither matter. But often the phone will just get unrooted after the ota.
As long as the rom is still stock it should be fine.
*Someone confirm?
As long as you keep stock recovery you can update and keep root. Also its wise to keep a nandroid of stock ROM, that way when an OTA is released you can nandroid back and get ota. This works well if you like to run a custom ROM but be able to check out ota should you feel the need.
Also many people updated to 4.2.1 while using CWM but the rest of their system is stock including root. I nandroid back to stock, with root and cwm. I was prompted to download the ota. Then I applied it via cwm. It will ask you if you wanna keep root and cwm while going through the flash process. Pretty seamless actually
Muffin approved this message.....
worked perfectly with CWM Recovery 4.2 to 4.2.1
sincere thanks for your guidance
Related
Hi
First of all, this is don't habitual for me since I used to read related post (and more if an update has just arrived) but I just could not find an specific instructions (sorry if I am being too demanding) to go from custom 4.2.1(PA) to stock and finish with rooted 4.2.2, there are a lot of several procedures or recommendations to perform the update :S
well this is what I have planed
- return to stock 4.2.1 (using nexus toolkit)
- download and flash manually the update to 4.2.2 (first try to use the ota update option)
- get root... how??? lol
- restore my apps/data
Since I will return to stock I think I will lose root, that is ok but only if i can root the nexus again, Will I be able to get root on 4.2.2? or I have to root in 4.2.1 and keep it (in some way) at the time I update to 4.2.2
Srryforbad/basicenglish:silly:
Rooting every nexus is the same. Flash/boot a custom recovery and flash supersu.zip. it doesn't matter what OS version its on.
Sent from my Nexus 7 using Tapatalk HD
Pirateghost said:
Rooting every nexus is the same. Flash/boot a custom recovery and flash supersu.zip. it doesn't matter what OS version its on.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
ok, I think I have missing that simple thing...
I don't have to worry about get the bootloader locked again therefore I just have to flash a recovery and SU when I have my N7 on 4.2.2, but...flash from... bootloader I guess, well, I will check that.
Thanks!
Learn the manual way of doing it and don't rely on toolkits. There are many tutorials walking you through the entire process
Sent from my Nexus 7 using Tapatalk HD
SLver said:
ok, I think I have missing that simple thing...
I don't have to worry about get the bootloader locked again therefore I just have to flash a recovery and SU when I have my N7 on 4.2.2, but...flash from... bootloader I guess, well, I will check that.
Thanks!
Click to expand...
Click to collapse
To elaborate on Pirateghost's points...
After flashing the 4.2.2 update... you will lose your recovery (CWM or TWRP)... but getting your recovery back is also part of how you (re)gain root.
As I have posted elsewhere...
Rooting is really simple.
(You will need an unlocked bootloader for this).
Get a custom recovery .img for your device...
Either CWM - http://www.clockworkmod.com/rommanager
...or TWRP - http://www.teamw.in/project/twrp2/103,
...it matters little which...
-----------
fastboot flash it.
-----------
Get Chainfires SU .zip package here http://download.chainfire.eu/310/SuperSU/UPDATE-SuperSU-v1.04.zip
Flash it using the custom recovery you've just fastboot flashed..
Reboot... and you're rooted.
-----------
...and that's it basically... you have root, a custom recovery from which you can flash ROMs, perform nandroid backups, etc.
But fastboot is the key... learn how to use it, and you will never need to be reliant on anybodies toolkit.
Rgrds,
Ged.
I am currently unlocked (TWRP v2.4.4.0) and rooted running 4.1.2. I would to update to the latest version of JB. Is there a simply way to do that without having to unroot, relock, and return to factory specs. I am just really looking to be able to keep all my data and settings. I've installed the latest version of WugFresh NRT on my desktop. Thanks so much for any help that you can provide.
Download the deodexed 4.2.2 stock rom and flash it via recovery.
http://forum.xda-developers.com/showthread.php?t=2148337
Don't forget to download the bootloader on the second post of that thread. Flash it via recovery as well.
Sent from my Nexus 4 using Tapatalk 2
You must be using an HTC device if you have to relock which you have to do to get the OTA update you cannot flash it without relocking your bootloader. You would have to flash a custom 4.2.2 ROM to keep your phone unlocked and your phone allowing it to flash properly. Otherwise you must relock then flash the ota update then unlock and root again. You will have to wipe it and reset when you flash the custom rom. Just make a nandroid before you do anything.
Sent from my SGH-I747 using Tapatalk 2
AcquiredIntellect said:
You must be using an HTC device if you have to relock which you have to do to get the OTA update you cannot flash it without relocking your bootloader. You would have to flash a custom 4.2.2 ROM to keep your phone unlocked and your phone allowing it to flash properly. Otherwise you must relock then flash the ota update then unlock and root again. You will have to wipe it and reset when you flash the custom rom. Just make a nandroid before you do anything.
Sent from my SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
99% wrong for the Nexus 7. It might well be true for HTC devices, but is not germane to this device.
scream4cheese said:
Download the deodexed 4.2.2 stock rom and flash it via recovery.
http://forum.xda-developers.com/showthread.php?t=2148337
Don't forget to download the bootloader on the second post of that thread. Flash it via recovery as well.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Thanks! I was able to upgrade my Nexus 7 using the NRT and the stock rom from that link that you provided (and didn't have to relock my device or wipe it). However, I forgot to download and install the bootloader you mentioned. Do I still need to do this and/or is it too late to do it? Everything seems to be working fine (root included) so far. Thanks again!
Hey guys, got a problem here.
My nexus 4 is rooted running team win recovery. running 4.2.2
just got the notification about OTA update 4.3, really excited about it and clicked install.
phone rebooted, went to teamwin, and it looked to me trying to flash something. left it there and suddenly when back to the team win recovery home page. clicked reboot to system and don't know why i'm still in 4.2.2. checked for updates but says system is up to date.
can anyone help me with the solution?
thanks a lot
You need the stock recovery, as said in a thousand other threads. If u want 4.3 flash the system image and re-root
Sent from my Nexus 4 using xda premium
EddyOS said:
You need the stock recovery, as said in a thousand other threads. If u want 4.3 flash the system image and re-root
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Or he could just get any 4.3 ROM and flash it through TWRP.
Sent from my Nexus 4 using xda app-developers app
Aaaaand i am still waiting for my update :/
My two friends with Samsung GNex got the Update, but ME with the Latest Nexus 4 still using 4.2.2 and on stock how beautiful the feeling is haha
Thibaultvw said:
Or he could just get any 4.3 ROM and flash it through TWRP.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Or CWM
If you want it that bad. Just download the factory image from Google devs and flash it.
Then you also have stock ROM running.
Send from my Nexus 4
EddyOS said:
Or CWM
Click to expand...
Click to collapse
He uses TWRP.
Sent from my Nexus 4 using xda app-developers app
Is there any way to revert back to stock recovery in order to get the update?
Further more, is there an option to do so without re-flashing stock all together?
wizardwiz said:
Is there any way to revert back to stock recovery in order to get the update?
Further more, is there an option to do so without re-flashing stock all together?
Click to expand...
Click to collapse
You can extract the stock recovery from the factory image and flash through fastboot.
Hit thanks if I helped.
Sent from my Nexus 4 using xda app-developers app
You can get the stock 4.2.2 recovery from the 4.2.2 factory image. I did have it but as I only keep the current factory image I only have the 4.3 recovery to hand
EddyOS said:
You can get the stock 4.2.2 recovery from the 4.2.2 factory image. I did have it but as I only keep the current factory image I only have the 4.3 recovery to hand
Click to expand...
Click to collapse
OK, did some further investigations and here are my findings
1. If you have it, you can use Wugfresh's toolkit (V1.6.4 for now) and it has a utility that can simply restore stock recovery and if you want it, stock kernel as well.
2. The Toolkit will download all necessary files and prompted you before each step.
3. It will revert back permissions for the stock recovery as well
I'll give it a try later on at home.
Thanks guys
Ziv
I am a bit confused. According to the “Nexus OTA Help-Desk” thread, the way to do this is as follows:
Scenario #2
You are stock, with root. Custom Recovery without any modifications or deletions.
Continue to Section B
Section B: Flashing in a custom recovery
1) Download the OTA.zip and copy to your phone.
2) Boot into recovery
3) Flash the OTA
4) Flash Su.zip: (SU is being updated often so check Chainfire's G+ for the latest) https://plus.google.com/+Chainfire/posts
NOTE: Root on 4.3 is not stable. Your mileage may vary.
5) Reboot
So, what is different about using this method to install the OTA and just running the OTA from the notification, and is this the incorrect method?
Is returning to the stock recovery the preferred and more or less foolproof method?
I'm not sure why there's people saying otherwise, but from my experience you don't need stock recovery to take on an OTA...
I've updated my N7 several times now from when I first bought it to 4.3 currently, all the time with a custom recovery. Unless you've changed some other files which causes an error during the OTA update, I don't believe there is a need to re-flash stock recovery at all.
@mlj11, lots of people have the OTA failing on them, even if they are on rooted factory image 4.2.2.
Why the OTA fails on rooted 4.2.2 is still unclear.
My N4 with rooted factory image 4.2.2 also updated like it should without error.
Maybe the unlocked bootloader is the issue letting the 4.3 OTA fail.
Send from my Nexus 4
@DecypherT
I'm not saying that rooted users will have no problems updating. My post was in response to people on this thread saying that a custom recovery will stop the OTA. This is false.
It can't be the unlocked bootloader (and it has never been) causing the problem otherwise you or I wouldn't have been able to take the OTA, for example. More likely it's something else.
If any of a user's system files have been altered, there's a good chance the OTA will fail. In the past that happened to me because the Stickmount app changed one of the system files. Once I replaced it though, I could update without any problems.
Ok, good points you're proving here.
Still, it looks like the (OTA) android 4.3 is very unstable.
I'm on rooted 4.3 and experience no big bugs or flaws though.
I do see a very large decrease of battery life when using the phone (screen on) and a big increase when in deep sleep. When the phone is off I almost use no battery.
Send from my Nexus 4
Anyone tried and confirmed working the old adb backup method that doesn't require root?
http://forum.xda-developers.com/showthread.php?t=1420351
Was hoping to use this method to backup before unlocking. I got into the usual problem of not wanting to unlock right away (in case issues etc.) then once I was comfortable with the unit too lazy to want to set up all up again from scratch....
Use helium. Backup each app individually. There are some apps that will Bork restore.
Sent from my Nexus 7 using XDA Premium HD app
bummer screw that for a joke then LOL
it will be awhile before I unlock as I'm waiting for the next OTA to deal with the multitouch/gps etc. (hopefully!) I'm hoping it includes some firmware fixes too that we may not be able to flash like a normal ROM.
wintermute000 said:
it will be awhile before I unlock as I'm waiting for the next OTA to deal with the multitouch/gps etc. (hopefully!) I'm hoping it includes some firmware fixes too that we may not be able to flash like a normal ROM.
Click to expand...
Click to collapse
Unlocking doesn't prevent you from getting the OTAs.
If you want root to be compatible with OTAs, see this post:
http://forum.xda-developers.com/showthread.php?p=44597339#post44597339
yeah I know that, I know I can reflash stock recovery and unroot etc. just too lazy to be bothered setting up all my apps losing saves etc. at this point short of mucking around with carbon. TBH if the multitouch issue is fixed or at least toned down there's not a lot of incentive to root for me aside from adblock.
I've got a hunch that the next OTA will involve firmware etc. so just reluctant to tinker until the stock base is 100%. Its not directly applicable as its a Nexus but in the past some other components e.g. HTC hboot, Moto (forgot the name) would get in the way of OTA if you unlocked the BL early.
wintermute000 said:
yeah I know that, I know I can reflash stock recovery and unroot etc.
Click to expand...
Click to collapse
My point is you don't need to unroot nor flash stock recovery (though it is safest to flash stock recovery)
The JSS15J OTA update will flash fine with root and twrp with just the small fix I referenced.
wintermute000 said:
I've got a hunch that the next OTA will involve firmware etc. so just reluctant to tinker until the stock base is 100%. Its not directly applicable as its a Nexus but in the past some other components e.g. HTC hboot, Moto (forgot the name) would get in the way of OTA if you unlocked the BL early.
Click to expand...
Click to collapse
JSS15J already included firmware updates, it updated aboot, sbl, tz, and rpm. Bootloader went from 3.05 to 3.14 and it flashed ok with root and twrp (though again, personally I suggest using stock recovery)
Also you don't need to install twrp persistently to root. I just boot into twrp one-time by using fastboot boot twrp.img to install the root files and leave stock recovery on the tablet.
With the one simple fix referenced above, you can have stock recovery, root, and be totally compatible with future OTAs, no need to revert anything. Of course after the OTA is successful, just re-run the SuperSU zip and the fix to set yourself up with root and await the next OTA.
On this nexus, you need to unlock even to do the official factory restore google published. The official images don't come with signatures.
To answer the question re adb bu, yes it works just fine.
Sent from my Nexus 7 using Tapatalk 4
First let me apologise if this is in the wrong section. I could not decide if this was the best place for it or q a&a. As the title sais. If i flash twrp will it prevent me from receiving ota updates from Google. I have an HTC sensation XE and if i flash a custom recovery i know from past experience that it prevents ota updates. This nexus 7 however is my first "Google" device you could call it and as such i do not know that.
Can any one inform me on this issue. Also if it will an ota cause loss of root on this nexus like it did on my smartphone or will it stay? If it is gone i suppose it will simply be a matter of using chainfires root tool again when it gets updated for it.
Thanks in advance.
Sent from my Nexus 7 using Tapatalk 4
Q&A would be the best place for the post, but I can offer some insight. Any time you flash a custom rom you will forfeit the option of an ota update from your carrier or Google. This doesn't affect your play store apps as they will update when needed. The information that gets sent to your carrier identifies it as being non-official software so only a few custom ROMs that are well maintained will point the ota updates to its own servers. If you wish to receive official ota updates you should perform a nandroid backup of your stock rom to have a restore point for when a new release comes out. Aside from that, you would have to flash everything back to stock (probably stock recovery too) in order to be seen by the carrier as an eligible device.
Sent from my SGH-I727 using Tapatalk 2
Who said anything about flashing a custom rom. I know i didn't. Sorry but that reply is no insight at all. I asked if flashing twrp a custom recovery would prevent ota updates like on my phone. Nothing else. I did not say one word about custom recovery.
Sent from my Nexus 7 using Tapatalk 4
Ch3vr0n said:
Who said anything about flashing a custom rom. I know i didn't. Sorry but that reply is no insight at all. I asked if flashing twrp a custom recovery would prevent ota updates like on my phone. Nothing else. I did not say one word about custom recovery.
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
If you install a custom recovery like twrp, you wouldn't be able to install an OTA from Google. You need stock recovery for OTAs.
now that's more of an answer i was hoping to get, can some other users confirm this? I suppose i'll lose root aswell but i imagine that would simply be a case of waiting for an updated root tool then. Say i do flash a recovery, does google have a page where you can manually download the update files to flash? But that would probably cause a lose of root as well but the custom recovery would remain intact, correct?
Ch3vr0n said:
now that's more of an answer i was hoping to get, can some other users confirm this? I suppose i'll lose root aswell but i imagine that would simply be a case of waiting for an updated root tool then. Say i do flash a recovery, does google have a page where you can manually download the update files to flash? But that would probably cause a lose of root as well but the custom recovery would remain intact, correct?
Click to expand...
Click to collapse
This has already been brought up many times e.g.
http://forum.xda-developers.com/showthread.php?t=2404833
I thought as much. I'll stick with stock recovery then until i need a custom recovery for some specific reason. For now root access is enough. And if an ota comes out and i lose recovery well I'll just wait for chainfire to update his root tool
i received the jss15j -> jsl36c update on my razorg with twrp recovery installed.
after the update stock recovery was back.
you can boot every recovery or kernel image without flashing it using fastboot:
fastboot boot nameofrecovery.img
I think you can have your cake and eat it too.
Instead of "fastboot flash recovery recovery.img" to flash the custom recovery, you can "fastboot boot recovery.img".
Every time you want the custom recovery, use fastboot boot command on the pc. This way you can make nandroid backups and flash superSU to root. But, you will not be replacing the stock recovery.
I did this on my HTC phone, when I wanted to remain stock, rooted, yet able to receive OTA updates.
HowardZ said:
I think you can have your cake and eat it too.
Instead of "fastboot flash recovery recovery.img" to flash the custom recovery, you can "fastboot boot recovery.img".
Every time you want the custom recovery, use fastboot boot command on the pc. This way you can make nandroid backups and flash superSU to root. But, you will not be replacing the stock recovery.
I did this on my HTC phone, when I wanted to remain stock, rooted, yet able to receive OTA updates.
Click to expand...
Click to collapse
Good to know.
Sent from my Nexus 7 using Tapatalk 4
I've taken OTAs using custom recoveries before on any number of devices. If you're not careful you can lose your recovery and have to reflash again, but sometimes you don't even lose that.
Well, there might be complications installing an OTA with custom recovery if it comes with a newer bootloader version/radio. Sometimes it works, but there were also reported problems.
Well i just had an ota update to jss15r and lost root as kinda expected. Now ill just have to find out if rerunning the root tool will be enough. Since it is already OEM unlocked i suppose i can simply modify that bat file and remove that line and run it again?