I had a mostly-stock Nexus 7 running 4.1.1 - unlocked, rooted, TWRP installed, but no major /system changes. When the update came in, I figured "what the heck, I'll just see if it applies - worst case I lose root and my recovery console, but it's a nexus, it's easy to get those back". I applied the update, and it worked! It applied and rebooted, worked fine - but it did lose root and recovery as I expected.
So I tried to get recovery back. It won't come back. Here are the ways I tried:
Hold down VolUp+VolDown+Power to get to fastboot mode. Ran
Code:
fastboot boot recovery.img
(using a number of different copies of both clockwork and TWRP recovery). Each time, the screen went black, google logo came up, but then it booted to AndroidOS
Tried to do
Code:
fastboot flash recovery recovery.img
The flash seemed to look like it did fine, but when I selected "Boot Recovery", it didn't. It booted Android OS
I can get into STOCK recovery using the normal method of selecting it from the menu just fine.
Stock recovery doesn't have ADB running. Fastboot mode doesn't have adb running. Fastboot doesn't have any command for rebooting into recovery apart from the method I mentioned (fastboot boot recovery.img). Booting into AndroidOS reflashes the recovery console with the stock console (I tried to race it running adb reboot recovery, but lost).
I tore my hair out for hours. Nothing I tried would let me boot into a custom recovery. I eventually backed everything up as best as I could using adb (Since luckily Android OS still worked), and reflashed to stock everything. PROBLEM IS STILL HERE! Then I decide to revert the bootloader from 3.41 to 3.34. SUCCESS. 3.34 booted to recovery without any problems at all.
Any idea what the heck is going on here? Anybody else seen this? All the threads I've seen with people having problems booting into recovery end with somebody suggesting "Just get app xyz that will reboot into recovery" - but that is NOT an option if A). you cannot get it to boot or B). you are not rooted/are running stock, because you can't be in AndroidOS and still have the custom recovery flashed UNTIL you are able to get into recovery to actually fix it.
Here's a video of me trying to flash recovery, since nobody will believe me that it doesn't work. Turn off the audio, the bell noise is obnoxious, sorry.
http://www.youtube.com/watch?v=zhHWiu7pO34
I brought up the same concerns when I did a manual flash to 4.1.2 and went through a mess eventually reverting to 4.1.1, using OTA rootkeeper than updating again because on bootloader 3.41 *NO* custom recoveries successfully boot.
how do you flash the old bootloader? if you don't mind me asking.
I have been on boot loader 3.41 for a few days and no issues with twrp. I have flashed a few things since and all is good? Sorry not sure why its not working for some.
ls3c6 said:
I brought up the same concerns when I did a manual flash to 4.1.2 and went through a mess eventually reverting to 4.1.1, using OTA rootkeeper than updating again because on bootloader 3.41 *NO* custom recoveries successfully boot.
Click to expand...
Click to collapse
Huh? I have 3.41 and can go from bootloader to recovery with no problems. Even got a video of it if you don't believe me
Sent from my Galaxy Nexus
You are not alone in this issue, me too, and others more, http://forum.xda-developers.com/showthread.php?t=1932063
I update to 4.1.2 using CWM, didn't lose root. Then changed back to TWRP 2.2.2.0 with bootloader 3.41, now I just updated to TWRP 2.2.3. Everything went smooth even though I'm android noobie.
anotherxyz said:
how do you flash the old bootloader? if you don't mind me asking.
Click to expand...
Click to collapse
Code:
fastboot flash bootloader bootloader-3.34-grouper.img
(or whatever the actual filename is). Then you do:
Code:
fastboot reboot-bootloader
You should at that point see the correct version listed in fastboot
masully84 said:
Huh? I have 3.41 and can go from bootloader to recovery with no problems. Even got a video of it if you don't believe me
Click to expand...
Click to collapse
I think the issue comes from going back to stock recovery without a rooted AndroidOS. Either one by itself seems to be fine. If you still have the CWR or TWRP recovery already flashed, 3.41 can boot to that. If you have root in AndroidOS, you can always re-flash recovery from ROM Manager or something, and that will work fine. And you can boot to recovery from Android OS (so long as you have root).
If you have stock recovery and no root, your only option is fastboot. And that fastboot flash and boot commands do not work. They look like they work - but they don't. So if you already HAVE a custom recovery, it probably won't even break it.
If you really want to do a proper test / prove this, go back to stock recovery with 3.41. Turn the tablet off completely. Boot up holding the three buttons and go into recovery to see that it can go into the stock recovery console. Then reboot with the three buttons again (don't boot AndroidOS), and run the fastboot boot command to run a custom recovery. If that works, I'll eat my hat.
(well, really all that means is that the problem isn't occurring on all systems. Doesn't mean it's not happening to me and many others)
The problem might not be that 3.41 can't boot to recovery -it might just be that 3.41 can't FLASH or BOOT a recovery console through fastboot. Many people will never notice that because:
A). They already have a recovery console flashed, so it still works
B). They flash their recovery from ROM Manager, GooManager, or whatever
If you lose root, you no longer have B as an option. If you also lose your recovery console, you can't get root access back without fastboot, so you have to use fastboot.
Se7enLC said:
Code:
I think the issue comes from going back to stock recovery without a rooted AndroidOS. Either one by itself seems to be fine. If you still have the CWR or TWRP recovery already flashed, 3.41 can boot to that. If you have root in AndroidOS, you can always re-flash recovery from ROM Manager or something, and that will work fine. And you can boot to recovery from Android OS (so long as you have root)[...]
[/QUOTE]
Not sure you've got it right. At least on my N7. My first try was flashing the update.zip in another thread without updating my ROM at all. Running Paranoid Android (2.1799 then) and TWRP. Not sure when in the mix I updated TWRP though.
Thought it might have been a problem with the update.zip, so downloaded the full update.zip from google and tried installing bootloader*.img from that via fastboot.
No change. Reverted to 3.34 without any playing around with deleting files and all is good.
Click to expand...
Click to collapse
Se7enLC said:
I had a mostly-stock Nexus 7 running 4.1.1 - unlocked, rooted, TWRP installed, but no major /system changes. When the update came in, I figured "what the heck, I'll just see if it applies - worst case I lose root and my recovery console, but it's a nexus, it's easy to get those back". I applied the update, and it worked! It applied and rebooted, worked fine - but it did lose root and recovery as I expected.
So I tried to get recovery back. It won't come back. Here are the ways I tried:
Hold down VolUp+VolDown+Power to get to fastboot mode. Ran
Code:
fastboot boot recovery.img
(using a number of different copies of both clockwork and TWRP recovery). Each time, the screen went black, google logo came up, but then it booted to AndroidOS
Tried to do
Code:
fastboot flash recovery recovery.img
The flash seemed to look like it did fine, but when I selected "Boot Recovery", it didn't. It booted Android OS
I can get into STOCK recovery using the normal method of selecting it from the menu just fine.
Stock recovery doesn't have ADB running. Fastboot mode doesn't have adb running. Fastboot doesn't have any command for rebooting into recovery apart from the method I mentioned (fastboot boot recovery.img). Booting into AndroidOS reflashes the recovery console with the stock console (I tried to race it running adb reboot recovery, but lost).
I tore my hair out for hours. Nothing I tried would let me boot into a custom recovery. I eventually backed everything up as best as I could using adb (Since luckily Android OS still worked), and reflashed to stock everything. PROBLEM IS STILL HERE! Then I decide to revert the bootloader from 3.41 to 3.34. SUCCESS. 3.34 booted to recovery without any problems at all.
Any idea what the heck is going on here? Anybody else seen this? All the threads I've seen with people having problems booting into recovery end with somebody suggesting "Just get app xyz that will reboot into recovery" - but that is NOT an option if A). you cannot get it to boot or B). you are not rooted/are running stock, because you can't be in AndroidOS and still have the custom recovery flashed UNTIL you are able to get into recovery to actually fix it.
Here's a video of me trying to flash recovery, since nobody will believe me that it doesn't work. Turn off the audio, the bell noise is obnoxious, sorry.
http://www.youtube.com/watch?v=zhHWiu7pO34
Click to expand...
Click to collapse
Found the solution to the the issue (sorta), I too went through all this trouble as you did in your OP.
I did not have to do anything other then straight up flash this version "recovery-clockwork-touch-6.0.1.5.b8147-grouper.img" via fastboot and bam! recovery works. Link - http://forum.xda-developers.com/showpost.php?p=32810167&postcount=228
Problem is with previous versions of 6.0.1.0 (Official) and TWRP 2.3.1
I still prefer TWRP, but hey This is better then the alternative (No recovery at all)
Now we need to figure out what changed between CWM 6.0.1.0 and 6.0.1.5 and get the other guys (TWRP) to fix their **** for us poor saps that seem to be a minority in the Nexus 7 world having this issue.
I would love to know what actually the fix is and why only some have these issues with older versions of CWM and TWRP.
Like an idiot I wiped my System inside TWRP. Using TWRP 2.6.0.2
Earlier tonight my phone starting rebooting. I was inside GooManager and tapped reboot to recovery. When I did that, for some reason my phone lost root. Meaning when I went to reboot inside TWRP it stated that it looks as if my phone is not rooted. I rebooted anyway without installing SuperSU through TWRP. I was already rooted. Afterwards, it would boot up fine but kept constantly rebooting only after a minute or two.
I went back into TWRP and clicked through dalvik wipe and cache wipe. Still got reboots. I was planning on flashing CyanogenMod anyways so I thought I'd go on and wipe everything. I went in to advance wipe and check everything. As I swiped the slider to wipe I realized I checked System too, but it was too late.
Now my phone won't boot past the HTC logo with the red text underneath. I can boot into TWRP however so I hope all is not lost. I am currently at work so I have no way to try anything on the phone at the moment but was hoping for some advice on what to try later when I get home.
I'm thinking maybe I'll be able to use the "Mount" tab in TWRP to load a ROM on and flash and everything will be well again. Would I mistaken to think that? If not, I'll purchase an USB OTG cable and use a USB stick but I really need this up an running as quickly as possible.
Also, does anyone think it would be best just to go back to stock at this point (if I can) and start from scratch?
Much thanks for your help and advice,
dgb1891
So, oddly enough I did the same thing, How I managed to recover it so you can adb sideload a rom from TWRP and have access to a "working" phone again was to find your stock recovery.img, then flash it via fastboot, and then from the hboot menu, choose factory reset and let the stock recovery do it's thing, then reflash TWRP (I honestly like CWM doe) and adb sideload a rom (presumably what you were using before). It SHOULD fix your problem and you'll be able to mount files again.
hayame said:
So, oddly enough I did the same thing, How I managed to recover it so you can adb sideload a rom from TWRP and have access to a "working" phone again was to find your stock recovery.img, then flash it via fastboot, and then from the hboot menu, choose factory reset and let the stock recovery do it's thing, then reflash TWRP (I honestly like CWM doe) and adb sideload a rom (presumably what you were using before). It SHOULD fix your problem and you'll be able to mount files again.
Click to expand...
Click to collapse
By stock recovery.img you mean a stock HTC image? - or do you mean a recovery like TWRP or CWM?
dgb1891 said:
By stock recovery.img you mean a stock HTC image? - or do you mean a recovery like TWRP or CWM?
Click to expand...
Click to collapse
Literally stock recovery.img, not TWRP or CWM.
hayame said:
Literally stock recovery.img, not TWRP or CWM.
Click to expand...
Click to collapse
K. Thanks. I have a feeling this is going to be a bit more complicated than I first thought...
I followed what you suggested and got the phone back up and working. Thanks again.
Hi Nexus 6 Community
Im new to own a Nexus 6 but Im an "enthusiastic flasher" per say. I've being looking around with no luck so I was hopping someone will point me to the right direction:
Usually whenever I flash anything on my previous phones I like to flash TWRP again in case of boot loops or something flashing bad that could delete or corrupt my custom recovery. I'm rooted and installed the latest TWRP through fastboot, but as I previously said, I would like to have a flashable zip to ensure my recovery will be installed and have a higher chance of not being locked out of my phone.
Or I'd notice you can flash images through TWRP, will this re-install my recovery using the TWRP .img file?
I really appreciate all for your help, thanks
Once you boot into twrp for the first time it patches /system to prevent the stock rom from replacing it unless you choose the "keep system mounted as read-only." This option is only offered to you if you boot into twrp with an untouched /system. And as for worrying about being locked out of your phone, as long as you have an unlocked bootloader you can always use a google factory image to get back to stock w/o a custom recovery.
I'd assume no one's made a flashable zip for twrp because reflashing it wouldn't accomplish much of anything if you already have twrp to flash it in.
I tried to boot into recovery to make a backup but TWRP has disappeared - no recovery whatsoever. Phone boots to system only. How can this have happened? I've been using Omni for the past month or so with no problems and updating every Sunday.
To recap, I have not done any modifications since the last opdate.Tried to boot into recovery and it is gone. Since only using Omini ROM I thought it was a ROM issue but no one in the Omni thread as been able to help so posting it here.
I can probably flash it again but am puzzled why is should just vanish.
The recovery might have got updated and the last update has overwritten TWRP, so it may be the cause of disappearance, but I'm not sure. You should've got standard recovery bundled with ROM.
And yes, just flash TWRP and it should work again. No need to flash Magisk or custom kernel, since you're on custom ROM.
Recovery partitions may have been corrupted. Try fastboot erase cache, and then fastboot flash recovery (TWRP). See if it boots into TWRP then.
TRWP installed again
Many thanks to all.
Recovery back! Still don't know why it disappeared.
Rooting this moto x4 is a whole new learning curve. I've noticed that this is the only phone that doesn't let twrp recover stick. I can flash a rom and everything is fine phone works perfectly. But later on if I need to flash something else when I boot back into recovery I'm back at the stock recover. Never had this happen before. So what I do for now is flash the ROM gapps then reflash twrp installer till I find a more permanent solution
jmcandrews83 said:
Rooting this moto x4 is a whole new learning curve. I've noticed that this is the only phone that doesn't let twrp recover stick. I can flash a rom and everything is fine phone works perfectly. But later on if I need to flash something else when I boot back into recovery I'm back at the stock recover. Never had this happen before. So what I do for now is flash the ROM gapps then reflash twrp installer till I find a more permanent solution
Click to expand...
Click to collapse
Yes, that is what you have to do.
As recovery is no longer a separate partition, it gets replaced when the boot partition gets updated.
I believe this is the way it will be with any device with a/b partition.