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.
Hey guys, I'm in need of some help....
I was flashing an update to my ROM on my unlocked HTC One using CWM touch recovery. The aroma update process appeared to complete correctly and i rebooted the phone however, it failed to get past the bootloader screen trying to boot the rom. When it bootlooped back into recovery I discovered I have a pretty major problem, the bootloader attempted to boot into recovery, flashed up the CWM recovery screen, but then that bootlooped too. I can reboot into HBOOT/fastboot but nothing else. I have tried fastboot flash recovery to TWRP and CWM but they are still flashing up and then rebooting. Any ideas on what I can do to dry and rectify this? I don't really fancy a £600 paperweight a couple of weeks after getting it...
Cheers
Whenever my recovery is TWRP I am not able to boot into any type of ROM. Every time I reboot my phone it will be past the "your bootloader is unlock" and always boots straight into TWRP. When I flash stock recovery I am stuck at a image of a Android and it just stays at "erasing..." till it reboots itself. I have attempted to flash different types of roms by sideloading through TWRP and also attempted to flash stock recovery through fastboot with no luck at all.
The issue started whenever I was on stock 6.0 and flashed TWRP. Once I was in TWRP at the end when I was rebooting my phone I said yes to install supersu, which I know now was a mistake. Afterwards I was stuck in a bootloop were I finally attempted to do a factory reset which seemed to have made things worse. That was when I was stuck at the "erasing..." whenever I attempted to boot through stock recovery. Not sure what else to try at this point.
Any help would be great at this point.
I'm in the same boat. Exact same problem with no idea how to fix. I can get into fastboot screen, but that's it. Suggestions? Thanks in advance.
EDIT : I got rid of the problem and managed to root my phone.
I'm having trouble rooting the K3 note flashed with VIBE UI 3.0. I'm using Lenovo K50a40, Indian Version and I flashed the Dev version of Vibe UI ROM (v 3.0 from hackerpower's signature) . The flashing went all fine. Then I tried to reroot the phone but I noticed that the recovery was the stock one. So I proceeded to reflash the recovery using fastboot but it showed that the file had been downloaded but could not be flashed to the recovery partition. I thought of using SP Flash Tool to flash the recovery. I flashed AthlonX's material TWRP recovery and it flashed okay. Then on rebooting the phone I find it remains stuck on the boot logo with Lenovo written on white backdrop. There's also text written in a small black strip on the bottom left which says "=>Tool DL Image Fail" . The phone stays on that screen for a minute or two and then goes out. Earlier I couldn't boot into the phone due to the above mentioned problem. Then I waited for the battery to drain and then powered the phone on normally (without pressing the button combination for recovery mode) and the phone booted up just fine but the recovery was the stock one .
From all this, there's one thing I've concluded- that this phone has some kind of defense mechanism that protects against installing a custom recovery. This occurred even when I tried rooting on Stock 2.5 VIBE UI. That time I overcame the problem by flashing recovery using fastboot and then booting directly into the recovery instead of system. Now, however, fastboot isn't able to flash the recovery (the transfer of the image is successful but the flashing fails) .
Finally, I request anyone who can help me in any way to Root the phone or to get a recovery installed to please reply.
Thanks.
how were you able to root it
Lord AJ said:
EDIT : I got rid of the problem and managed to root my phone.
I'm having trouble rooting the K3 note flashed with VIBE UI 3.0. I'm using Lenovo K50a40, Indian Version and I flashed the Dev version of Vibe UI ROM (v 3.0 from hackerpower's signature) . The flashing went all fine. Then I tried to reroot the phone but I noticed that the recovery was the stock one. So I proceeded to reflash the recovery using fastboot but it showed that the file had been downloaded but could not be flashed to the recovery partition. I thought of using SP Flash Tool to flash the recovery. I flashed AthlonX's material TWRP recovery and it flashed okay. Then on rebooting the phone I find it remains stuck on the boot logo with Lenovo written on white backdrop. There's also text written in a small black strip on the bottom left which says "=>Tool DL Image Fail" . The phone stays on that screen for a minute or two and then goes out. Earlier I couldn't boot into the phone due to the above mentioned problem. Then I waited for the battery to drain and then powered the phone on normally (without pressing the button combination for recovery mode) and the phone booted up just fine but the recovery was the stock one .
From all this, there's one thing I've concluded- that this phone has some kind of defense mechanism that protects against installing a custom recovery. This occurred even when I tried rooting on Stock 2.5 VIBE UI. That time I overcame the problem by flashing recovery using fastboot and then booting directly into the recovery instead of system. Now, however, fastboot isn't able to flash the recovery (the transfer of the image is successful but the flashing fails) .
Finally, I request anyone who can help me in any way to Root the phone or to get a recovery installed to please reply.
Thanks.
Click to expand...
Click to collapse
i have been using the sp flash tool to download the recovery i want and every time goes back to the stock one
obviously i lost my gapps with the update
but i dont have the google play services issue since i had to re install stock rom and never update google services and just when ahead and applied the updates 2.8 and 3.0,
do you have any ideas
daniiaroxyo said:
i have been using the sp flash tool to download the recovery i want and every time goes back to the stock one
obviously i lost my gapps with the update
but i dont have the google play services issue since i had to re install stock rom and never update google services and just when ahead and applied the updates 2.8 and 3.0,
do you have any ideas
Click to expand...
Click to collapse
If the recovery goes back to stock then you should probably try to boot into the recovery before rebooting to system after SP Flash Tool has done it's job.
Hi so I down loaded one more time the recovery thru sp tool
But this time I took the battery out for few seconds instead of rebooting right away
And it worked
Once I rooted back the phone I tried flashing the gapps but it didn't work
I tried changing the permission s thru root explorer for the google base app as I so on a post and nothing
Any ideas
I rooted and flashed CM14 ROM for the H811 G4. had to use fastboot boot recovery command because flashing recovery didn't work. ROM loaded/worked totally fine, went to flash Super SU in recovery, phone flashed it, rebooted and then didnt boot up again. Stuck on the CM14 logo, tried flashing stock KDZ, kept getting errors like unable to connect. Any ideas on how to get this thing back up and running?