yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Android Development] mariolouis:
I guess they paid for Rom Manager and got the latest version of CWM? I don't know. I'll back read a bit to see if these folks did use 6.0.1. :)
[Nexus 7 Android Development] smirkis:
rom manager would always flash the latest. paying customers get touch, I always downloaded the newest off his site and manually flashed it for free. but some users had the issue with twrp. I always flashed the latest twrp from goo.im and never had this issue (thank god).
[Nexus 7 Android Development] blackt5:
Flashing CWM 6.0.1.5 worked for me. Flashed both bootloader-3.41 and this version of CWM at the same time
[Nexus 7 Android Development] GreenXSniper:
Okay I used the mediafire link. That might be the problem.

I would advise anyone flashing this against using the mediafire link until we get confirmation that it is safe.
[Nexus 7 Android Development] winner00:
Added the MD5 in the OP.
[Nexus 7 Android Development] justen7723:
Anyone got an image if what it says under boot loader version??? Like this one.

I've flashed 3 times now hasn't changed the version. I'm guessing since I just bought my n7 it might have already had it?
[Nexus 7 Android Development] s1l3nt:
it should be 3.41
[Nexus 7 Android Development] justen7723:
Wtf to that! Don't know tried and tried both links. Even says successful. But I look and its the same?
[Nexus 7 Android Development] clusterchuck:
I got stuck in a boot loop attempting to install a custom kernel on top of it but worked again once I went back to fully unrooted stock.
[Nexus 7 Android Development] barrmulio:
Worked for me on PA 2.16 (goo version)
[Nexus 7 Android Development] evonc:
Finally it has been fixed. Thanks!

Sent from my Nexus 7
[Nexus 7 Android Development] B4 I FU RU 18:
Flashed it a few minutes ago and it worked fine. At first it seemed like it was going to loop but it dodmt.
[Nexus 7 Android Development] vladthedog:
thanks for posting. just what i needed.
[Nexus 7 Android Development] ricardowec:
Thanks for posting. Worked for me on EOS 3. Bootloader reboots fine into TWRP.

Cheers

Sent using The Beast via Tapatalk 2
[Nexus 7 Android Development] Niksko:
Worked fine and fixed the issues booting to recovery. Flashed rooted 4.1.2 immediately afterwards and everything is working fine. Thanks.
[Nexus 7 Android Development] woshiweili:
I lost root after flashing the 4.1.2 zip. Will this help? If so how do I flash this if I can't get into recovery? Thanks. :)
[Nexus 7 Android Development] satur9ine:
If I have an unlocked boot loader will flashing this newer one lock it again?
[Nexus 7 Android Development] syzkk:
same stuck at google LOGO, i can get into bootloader and see the ver 3.41 but recovery doesnt work any more. had to revert to ver. 3.34 to boot normally

running Smooth rom 3.1
[Nexus 7 Android Development] guih:
Nope

Also, just flashed this and had 0 issues whatsoever running PA. Thanks OP!
[Nexus 7 Android Development] deltantor:
just flashed, was on PA 2.1799 and franco's r20 kernel, bootlooping. Downloading the 3.34 bootloader from the factory image now, hoping it will fix it if i flash it from . Downloaded from goo.im. Also tried flashing the 3.41 bootloader from inside of fastboot, gives an unknown error. Although since I flashed it in recovery the bootloader shows as 3.41

---------- Post added at 12:40 AM ---------- Previous post was at 12:20 AM ----------

Alright, flashed over the 3.34 bootloader from the factory image at https://developers.google.com/android/nexus/images and then immediately booted into recovery, flashed over my rom and gapps just incase and now its booting just fine. going to hold off on messing with it more until we figure out what is going on.

Again, what I did to get back to booting fine:

Booted into fastboot using voldown + power

fastboot flash bootloader bootloader-grouper-3.34.img from a terminal

reboot into fastboot again, usb cable still plugged in, boot into recovery, and then flashed back over my rom and gapps
[Nexus 7 Android Development] climo:
Just flashed the new bootloader over PA 2.16 worked great! No boot loops and can now access TWRP recovery via the manual method. All seems well running the 3.41 bootloader with the 4.1.1 rom. Thanks OP!! Now to wait for CM to merge the new 4.1.2 base!! :good:
[Nexus 7 Android Development] dago:
With he OTA update my bootloader version is 3.41 and before it was 3.34, CWM in bootloader works fine :)
[Nexus 7 Android Development] Sultanxda:
Downloaded it from goo.im and flashed from TWRP. When I hit reboot it had the usual Google boot screen when turning on, rebooted, and then booted the ROM normally. I can now get into TWRP from the bootloader without a USB cable :D
[Nexus 7 Android Development] Elting:
So, 50% get a bootloop and 50% have no problems? Where is the error?
[Nexus 7 Android Development] gapone:
Can you just flash bootloader.raw with fastboot or does it has to be in .img format?
[Nexus 7 Android Development] slimshady24113:
Thanx it's work fine no errors
[Nexus 7 Android Development] lippa:
Bootlooped here... Had to re-install stock!

Downloaded via goo... PA 2.17 stock kernel
[Nexus 7 Android Development] thirtynation:
No errors over here. Was looking to switch from AOKP to PA anyway. Fully wiped/formated /data, /cache, /system individually. Then flashed newest CWM 6.0.1.0, then JZO64K bootloader, then PA rom, then gapps, and no errors with any of it.

Thanks!
[Nexus 7 Android Development] peter1989212:
you can try flashing stock bootloader using an terminal. I flashed jro03d bootloader using Google Nexus 7 ToolKit v2.0.0 and its working again. All my data are still there.
[Nexus 7 Android Development] lippa:
Regardless what i do i keep getting bootloops... Both versions! Can someone supply this in a .img format? reverting back to the old bootloader fixed the issue!
[Nexus 7 Android Development] peter1989212:
I think third party kernels might be the problem! I was using PA2.1799 rom and faux kernel,flashing this bootloader lead to bootloops.Then I restored to stock kernel and tried this bootloader again, it worked this time.Hope it would work for you too.
[Nexus 7 Android Development] John_Q:
Thank you.... No problems here.

Smooth ROM v3.1

Franco Kernel r20
[Nexus 7 Android Development] El Nino1977:
Well i was sceptical at first as I didnt want to go through the hassle of fixing any bootloop issues.

But I am on PA and Faux Kernel and all flashed fine through TWRP recovery. No issues...
[Nexus 7 Android Development] lippa:
Flashing this method (using a custom recovery) has worked. Updated Android and bootloader!

http://www.androidpolice.com/2012/1...d-4-1-2-jzo54k-with-stock-or-custom-recovery/
[Nexus 7 Android Development] Cor-master:
Just flashed over PA, no issues!
[Nexus 7 Android Development] 57op:
Flashed it and works correctly, i think.

Which is new bootloader version? I didn't remember my previous version and i want to be sure that it has been updated successfully.
[Nexus 7 Android Development] Jordanooo:
Old one was .3 new ones .4
[Nexus 7 Android Development] wweasel:
Old is 3.34, and new, 3.41
[Nexus 7 Android Development] redundant409:
works for me!

i plugged my n7 in to my computer, flashed the 4.1.2 update via cwm, and then flashed this boot.oader. i then rebooted, my n7 showed the google logo for a split second, and then promptly shut off. so i waited a bit, and then my computer started installing the apx driver.

commence freaking out on my part because at this time there is no way for the nexus 7 to get out of apx mode if it gets stuck in it.

i then held power vol up and vol down after freaking out a bit, and it rebooted into the bootloader. relief. just thought id let you guys know how it went, and how i thought i almost bricked my n7!
[Nexus 7 Android Development] eagle06:
Flashed it in Cwm touch(running cm10).Everything working fine.

Sent from my Nexus 7
[Nexus 7 Android Development] airmaxx23:
I just flashed this with TWRP running PA 2.1799 and Francos r20 kernel without any issues.
[Nexus 7 Android Development] GreenXSniper:
Would everyone who had boot loops post what rom they were running, what recovery they used, and and which link they downloaded from so we can figure out what is causing some people to boot loop?

I had:

Rom: BAMF paradigm 2.3.5

Recovery: TWRP (newest on goo.im)

Link: Mediafire
[Nexus 7 Android Development] pettigrew95:
So I flashed the bootloader after flashing your 4.1.2 release. Booted into Android but I cannot get into recovery no matter what I do whether it be adb from my PC or using the Nexus 7 Toolkit. Also can not power off the tablet it just hangs and also when I restart by holding vol down+power it reboots and builds the cache again then boots into android. Also noticing I cannot uninstall anything. Can anyone please help me to try to get this thing back into recovery!? Thanks in advance!!
[Nexus 7 Android Development] docfreed:
Flashed With TWRP, Lost Root...

but regained root with no issues (had previously saved root with OTA Rootkeeper). Updated both bootloader to 3.41 and Android to 4.1.2.
[Nexus 7 Android Development] Jeff_in_LA:
Thanks - it flashed fine for me with TWRP.
[Nexus 7 Android Development] dreamcwli:
The new bootloader image can be found in the AOSP source tree, and I upload it so anyone can get it without checking out the source tree.

Use fastboot to flash this image.

File

bootloader-grouper-3.41.img

Checksum

MD5: f5f8c0dd160ef92c601311a0c9054118

SHA1: 973409294eba85479f0c8112b4d66fa7792dcb9e
[Nexus 7 Android Development] Roll3r:
What happens if you type "reboot recovery" or "reboot bootloader" from terminal emulator (or from ADB for that matter)? Does it hang when shutting off, does it reboot but just go back to Android, or does it do nothing? This can definitely be fixed, just need more info.
[Nexus 7 Android Development] docfreed:
Same problem here - I'm rooted, etc... but cannot either get into recovery or even flash recovery - all I get from trying to get into recovery is the little android man with the red triangle
[Nexus 7 Android Development] gapone:
I have the same problem that I can't get into recovery at all when using 3.41 bootloader. It tries to boot into recovery but it seems like it can't find it or something and then reboots again back to OS. I have renamed recovery... from /system and flashed the recovery with rom manager and fastboot. I also flashed the bootloader from cwm and fastboot and the same thing happens. Flashing back to 3.34 bootloader solves it. One thing I noticed when I tried to flash bootloader with twrp recovery... When I enabled the integrity check for the zip file, It caused error saying partition miss match and couldn't install (MD5 matches so zip is ok). Maybe the file is too big to fit into bootloader partition or something?
[Nexus 7 Android Development] :
I flashed the same file and i think i have a brick. I can't get it to boot into bootloader or recovery fml. Help
[Nexus 7 Android Development] docfreed:
How did you flash back to the 3.34 bootloader without recovery?

---------- Post added at 01:08 PM ---------- Previous post was at 01:01 PM ----------

I'm able to connect to the Nexus 7 Toolkit - I made a nandroid backup yesterday (would be a downgrade to 4.1.1) so I'm going to try to restore it - will report back a little later.
[Nexus 7 Android Development] hhwong:
ok i ****ed up, i flashed the boot loader before i flash the 4.1.2, now i am in a bootloop, i managed to get into the fastboot mode but i am not able to enter CWM anymore, tried to flash stock recovery via toolkit and it doesnt work still

please advise :(

EDIT: Finally managed to use the toolkit and wiped everything with factory reset image from google.

Gonna try to flash it again now that i know i wont brick the device...>:D
[Nexus 7 Android Development] gapone:
1. Download nexus7 stock image from here https://developers.google.com/android/nexus/images#nakasi

2. Extract the file "bootloader-grouper-3.34.img"

3. reboot to bootloader

4. fastboot flash bootloader bootloader-grouper-3.34.img

5. fastboot reboot-bootloader (so you can check that bootloader version has changed)

6. fastboot reboot
[Nexus 7 Android Development] docfreed:
OK Folks - A Solution (You Might Not Like)...

I decided, WTF and went to the following link:http://xdaforums.com/showthread.php?t=1781250 this is the "Returning to Stock" link - followed the instructions (I've had the android SDK on my PC for years) and viola! I am back to stock, unlocked bootloader, Android 4.1.1.

Now I think I will go back to the Nexus 7 Toolkit, redo all of the initial stuff (installing recoveries...) and NOT update until I know what happened.

AFAIK, my beautiful tablet is back to virgin OOB condition. I will report back in a few when I have successfully rerooted, etc.

---------- Post added at 01:50 PM ---------- Previous post was at 01:38 PM ----------

Phew! I did as per the immediately above post so I am back to square one with TWRP recovery installed and able to boot in and out of it (at least from the bootloader screen.

Royal PITA but at least the tablet isn't damaged.

NOW, a word of CAUTION. I had been using the Nexus 7 Toolkit 2.0 for all of this stuff - I noticed some weird stuff as follows:

Was able to root, install busy box, flash TWRP but when I went to item 20 - "reboot options" and tried anything it kept saying "device not found" - so I just pulled the plug and went back to using adb commands and all is well.:laugh:
[Nexus 7 Android Development] h.debnath:
just flashed goo.im link

boot loader is 3.41

Able to access twrp from fastboot, thanks!
[Nexus 7 Android Development] GreenXSniper:
Are you able to boot into recovery?
[Nexus 7 Android Development] pettigrew95:
Mine does absolutely nothing, I can still use Android like usual, open apps etc.
[Nexus 7 Android Development] brando56894:
Does this update fix anything other than the "frozen menu" bug? I had it for the first week I had my Nexus but it has seemingly disappeared after that. Since this causes some people to boot loop and others are fine, I'm not going to update right now if it doesn't fix anything else.
[Nexus 7 Android Development] mslatter:
PA 2.1799 - booted into Recovery, flashed the zip just like I would a ROM, rebooted and all good. Now like others, can access Recovery with out having to be plugged into a computer. Thanks!!

Edit: fyi, using cwm
[Nexus 7 Android Development] .torrented:
ok so i flashed the goo.im link download but my HBOOT is still the 3.34 version? I can access the recovery from bootloader but it does not say that its 3.41

Now after a while its not working Idk what happened
[Nexus 7 Android Development] budde2:
I can't boot in to recovery at all I am stock as hell. Both my N7 can't boot in to recovery from boot loader like when I hit power volume +- together and than go to recovery it just stays on the Google screen. Anyone know if this will fix that
[Nexus 7 Android Development] TKruzze:
Easy peasy for me. Flashed the zip and I'm on 3.41 and booting into Recovery from Bootloader with no problems.

I'm using TWRP and PA 2.15.

Sent from my Nexus 7 Tablet
[Nexus 7 Android Development] xandr115:
I'm running a stock 4.1.2 rom stock kernel rooted and bootloader unlocked with CWM. I've tried both the CWM zip from the OP, and the 3.41 bootloader image from fastboot. After a couple of tries, and some frantic, "oh $4!7" moments... I've relegated myself to understanding, this probably doesn't work on my nexus 7. Maybe there's some hardware inconsistencies? I've flashed back to 3.34 and i'm back to "working" for now without the ability to boot into the recovery from the bootloader.
[Nexus 7 Android Development] Roll3r:
To those who can't boot into recovery: A) Are you renaming /system/recovery-from-boot.p after flashing TWRP? B) Have you tried booting into recovery while USB is attached?
[Nexus 7 Android Development] docfreed:
Yes and Yes but a question. A few posts noted two files, the "recovery-from-boot.p" in system and an install....sh in etc. I renamed both with .bak extensions but no joy there (tried to get into recovery both connected/unconnected and from Quick Boot and Titanium backup - nada also.

1. I guess the 4.1.2 build installs these files because I do not see them in my currently running rooted stock 4.1.1.

Now I wonder if all those reporting success flashing 4.1.2 (either via recovery or sideloading w/adb) are actually checking to see if they have recovery afterward?

Seems to be a host of issues with updating - perhaps caused by not everyone coming from the same baseline.
[Nexus 7 Android Development] Vektor67:
I flashed this update via Cwm and after flashing CWM asked if I wished to retain my current recovery, as it was possible the update I just flashed would rewrite the stock recovery upon reboot... I answered "yes" and have had no problems. CWM handled the issue quite nicely, unfortunately I didn't notice what had been done.
[Nexus 7 Android Development] docfreed:
OK, thanks for the info - I have been using TWRP - maybe I will switch back to CWM and give it a try.
[Nexus 7 Android Development] killer23d:
I flash this with EOS and running CWM touch. Now I can boot recovery via bootloader.

Thanks

Sent from my SGH-I897
[Nexus 7 Android Development] xray49er:
Will this wipe my data

Sent from my wife's nexus 7
[Nexus 7 Android Development] diomark:
I've tried everything at this point; no luck:(

is there a way to sideload this bootloader?

-mark
[Nexus 7 Android Development] BarberAE:
anybody with hardware varient ER3 able to get this to work with a custom rom or rooted stock. I can flash the stock 4.1.2 image and bootloader and be fine but cannot get root. Cannot flash a custom recovery or boot into a temporary recovery to flash superuser. Sticking to 3.34 for now.
[Nexus 7 Android Development] gunz.jones:
Er3 revision. Boot loader loads 3.41 and goes to recovery when selected ^_^

Edit: I am still running 4.1.1. That should not make a difference though.
[Nexus 7 Android Development] brizey:
I have an Er3 as well and was able to flash with TWRP without issue. I can reboot into recovery just fine.

Running Eos 32 and faux 12beta4
[Nexus 7 Android Development] osm0sis:
Typo fellas.. this is JZO54K.
[Nexus 7 Android Development] caanda45:
Worked like a charm, can cold boot now...thanks!!!! Used the goo download and on TWRP recovery...
[Nexus 7 Android Development] Evo_Shift:
First time i have ever been reluctant to update a nexus device with all the bootlooping and not being able to enter recovery going on. Seems like a sloppy update or something and reminds me of carrier controlled devices.
[Nexus 7 Android Development] styckx:
There is absolutely nothing wrong with anything. It's a ton of new people who are used to point and click updating (Odin etc) who have screwed around with the 5,001 rootkits and homemade tool kits for a device that doesn't even need them doing god knows what with them and now in a situation in order to do what they want (update) they have to use big boy command line tools from an SDK on a device with god knows what already flashed on it.
[Nexus 7 Android Development] hhwong:
Yup, i wasted some time trying this, yes, lol@me......DO NOT FLASH BOOTLOADER BEFORE YOU FLASH 4.1.2!!!!!

I am not sure about your device, but on mine, if you flash the bootloader before flashing the 4.1.2, then welcome to bootloop!

If you flashed 4.1.2 THEN flash the bootloader everything will work as promised.
[Nexus 7 Android Development] caanda45:
Not true, not on 4.1.2 and it flashed fine and now I can cold boot no boot loops what so ever......still on 4.1.1.
[Nexus 7 Android Development] mercado79:
on stock rooted JRO03D. twrp recovery version 2.2.2.0.

flashed the new bootloader first (goo.im), rebooted, flashed the update zip posted by andrew2511 here:

http://xdaforums.com/showthread.php?t=1929270

no problems at all accessing recovery via bootloader or otherwise.
[Nexus 7 Android Development] GreenXSniper:
It's not just "noobs" who this is happening to. But I do agree with you about not being afraid to flash this. If you get stuck in a boot loop just flash back to stock.
[Nexus 7 Android Development] Elting:
The new Factory Image is online, so you can flash the new Bootloader via Fastboot, too.

Maybe it's a little more safety.
[Nexus 7 Android Development] android88:
Just flash it in recovery.

---------- Post added at 01:32 AM ---------- Previous post was at 01:26 AM ----------

I have been waiting for this. Thanks!
[Nexus 7 Android Development] :
I tried flashing the bootloader image with fastboot first, but then my recovery failed to load.

After using the zip in OP it worked though. :)

Running the rooted JZO54K ROM from XDA, with CWM 6.0.1.0.

Device is C9OK if that matters.
[Nexus 7 Android Development] icytrey:
Flashed Andrew's 4.1.2 stock ROM..flashed updated bootloader through goo...flashed franco's r21..everything updated and confirmed..using cwm...like butter:D
[Nexus 7 Android Development] Elting:
That I can not comprehend. The fastboot method should be safe and working... :confused:
[Nexus 7 Android Development] ced-rick:
work fine! thanks:D
[Nexus 7 Android Development] :
Must have been a corrupt download on my end.
[Nexus 7 Android Development] gapone:
I did a complete factory reset installing factory image with fastboot and I still can't even boot the recovery with the fastboot boot command. This is using the newest 3.41 bootloader. Something strange is going with this update...
[Nexus 7 Android Development] SaintyUK:
Strangely, I have the same on my friends N7. I did a full reset like youself using the new 4.1.2 factory image. I can't get it to boot any custom recovery - either flashing or booting. The stock recovery works though. But obviously no way to root :(

Maybe its something in the 4.1.2 factory image?!

Edit: I ended up going back to the JRO03D factory image, it CWM seemed to work fine then. But after a few reboots stopped working again. Seems very intermittent - very strange!
[Nexus 7 Android Development] Reginald476:
Thank you for this, like others have said this allows me to boot into TWRP without using a USB cable. I downloaded from MediaFire and had no issues with bootloops or the like.
[Nexus 7 Android Development] mejobloggs:
How do you check what version of bootloader is installed?
[Nexus 7 Android Development] buttie:
It's written in bootloader screen.

Swyped from Nexus 7 via Tapatalk
[Nexus 7 Android Development] sizanx:
Thanks. Flashed it via TWRP using the goo link (Rooted Stock 4.1.1 JRO03S) :)
[Nexus 7 Android Development] BarberAE:
Same here. I was thinking it must be something hardware related but others have the same varient as me and it works. For me I can only boot with the 3.41 bootloader and stock recovery. Anybody that it is not working for still have the box and can tell what build varient they have? C6O, C7O, C8O, or C9O?
[Nexus 7 Android Development] bucketachicken:
Thanks to OP for this, I know PA 2.2 says the new bootloader isn't needed, but I thought I'd go ahead and update since the recovery-from-bootloader bug was annoying. Happy to report success. Was running PA 2.1799, whatever kernel it comes with, CWR Touch 6.0.1.0, though I flashed the zip on this via WugFresh's ToolKit 1.5.3 just cause. Up and running, about to move on to PA 2.2!

(and flashing this made me scared, too -- I bought my N7 after what seems like a perma-bricked Tab 10.1 from a routine "flash zip in recovery" process -- anyone good with nvflash, lol? Can load up a bootloader.img via nvflash and have unlocked bootloader, but can't get anything else to work...I'd totally pay someone if they could help me actually fix it, PM me if anyone knows how :p )
[Nexus 7 Android Development] GreenXSniper:
Can you boot into recovery?
[Nexus 7 Android Development] kzakhar:
I flashed the new bootloader and confirm that both stock 4.1.2 and the new PA 2.2 successfully boot into custom recovery (CWM 6.0.1.0).
[Nexus 7 Android Development] Pithism:
So originally had trouble was able to fix my bootloop but im not sure why it happened. Does it matter that i am on a rom thats 4.1.1 with twrp as a recovery.

Im assuming this new bootloader will work with 4.1.1 roms and 4.1.2 roms
[Nexus 7 Android Development] demandarin:
I just flashed new 4.1.2 jb version. Should thwt have installed this new bootloader or I need to do it separately?