Is anyone updating their bootloader? - Nexus 7 Q&A, Help & Troubleshooting

I've seen some people say its a good idea to update it and others say its not needed, and doesn't offer any improvements. I'm currently stock, rooted, and unlocked and trying to decide if I should revert to stock, take the ota and have everything update or just flash one of the 4.3 stock zip. I saw you can fastboot the updated bootloader but I have like no experience with fastboot and wouldn't want to screw anything up.
So its either revert to stock and accept the ota and gain the updated bootloader, or just leave the old one there and flash 4.3. I could try fastboot but weary of that method.
Sent from my SCH-I535 using xda app-developers app

Do not be afraid of using fastboot so long as the commands you typed are correct.

Leonhan said:
Do not be afraid of using fastboot so long as the commands you typed are correct.
Click to expand...
Click to collapse
Okay thanks...I'm actually in the middle of flashing clean ROM. First ROM on my nexus. I can still go back later and update the bootloader right?
Sent from my SCH-I535 using xda app-developers app

Great. So I flashed clean ROM 4, reboot system and now it keeps automatically booting up into recovery. It shows thr google splash screen, flashes and it shows again. Then boots into recovery. What's going on here?
Sent from my SCH-I535 using xda app-developers app

Related

weird soft brick... help please

I flashed the clockworkmod touch zip from my recovery.
It didn't give me the touch recovery, I thought "whatever" and booted back into my rom.
It wouldn't boot.
I went back into recovery and flashed PA rom and gapps.
They weren't booting, I decided to give them a few minutes.
It finally booted.
It no longer connects to wifi or tmobile.
I can't transfer files over usb.
Wugfresh's toolkit couldnt return it to stock.
I thought the recovery might have gotten messed up when I tried to flash CWM touch, so I flashed TWRP from Wugfresh's toolkit.
I used adb sideload to flash a stock rooted rom.
It still took forever to boot, and is still not connecting to wifi/network.
TL;DR I can boot into fastboot and recovery and even the rom but I have no network connection... help guys :'(
It says BASEBAND VERSION - N/A... could that be the problem? If so, how do I fix it?
This is why we don't use toolkits. Return to stock using ADB and do it again...
Sent from my Nexus 4 using xda premium
When I try to fastboot flash the stock image it says "does not contain recovery.sig" "does not contain boot.sig" and only updates the bootloader.
Did you dl the image right from Google?
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ethan.r.besbris said:
Did you dl the image right from Google?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Yup.. this one https://developers.google.com/android/nexus/images#occam
So I just flashed the radio by itself and its working fine now thanks for your help man.
No problem. Glad you're up and working.
Sent from my Nexus 4 using xda premium
*****

[Q] Recovery issues after OTA update to 4.3

I was on stock 4.2.2 with TWRP installed and I took the OTA to 4.3. Now whenever I try and access my recovery it dispays the Android mascot lying on its back, chest open with a red triangle with an exclamation mark above. I tried flashing TWRP 2.6 via fastboot twice but I still get the same error. How can I fix this? Thank you!
What Fastboot command did you do?, toolkits can't help on 4.3.
The android getting operated on is a security feature so criminals cannot get your data, it is Volume up and power to access the stock recovery on that screen.
Sent from my Nexus 4 using Tapatalk 4
Same exact situation. Stock 4.2.2 with TWRP installed (version 2.6) and then did the OTA. Losing TWRP and root in this situation is normal. I also could not reinstall TWRP the normal fastboot way, and then I saw the following on several forums, and it installed jut fine:
fastboot-windows -c "lge.kcal=0|0|0|x" flash recovery recovery.img
pjc123 said:
Same exact situation. Stock 4.2.2 with TWRP installed (version 2.6) and then did the OTA. Losing TWRP and root in this situation is normal. I also could not reinstall TWRP the normal fastboot way, and then I saw the following on several forums, and it installed jut fine:
fastboot-windows -c "lge.kcal=0|0|0|x" flash recovery recovery.img
Click to expand...
Click to collapse
I managed to fix this after trying a variety of things. All I had to do was rename the downloaded TWRP file and flash using "fastboot flash recovery twrp.img" and it worked flawlessly.
andyabc said:
What Fastboot command did you do?, toolkits can't help on 4.3.
The android getting operated on is a security feature so criminals cannot get your data, it is Volume up and power to access the stock recovery on that screen.
Sent from my Nexus 4 using Tapatalk 4
Click to expand...
Click to collapse
What do you mean by toolkits cant help?!
I still can root my 4.3 JB via toolkits like wugfresh etc?! Right?!
And i too got the same problem couple of days back while rooting manually, so finally had to flash stock.
Sent from my Nexus 4 using xda premium
ssbnasa said:
What do you mean by toolkits cant help?!
I still can root my 4.3 JB via toolkits like wugfresh etc?! Right?!
And i too got the same problem couple of days back while rooting manually, so finally had to flash stock.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Rooting your device running 4.3 by booting a unsecure 4.2.2 kernel?, not really what I had in mind and not really recommended what so ever...
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andyabc said:
Rooting your device running 4.3 by booting a unsecure 4.2.2 kernel?, not really what I had in mind and not really recommended what so ever...
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Click to expand...
Click to collapse
No not about booting an unsecure kernel, i'm talking about using toolkits for rooting 4.3 via toolkit :|
They're goog to go right?!
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ssbnasa said:
No not about booting an unsecure kernel, i'm talking about using toolkits for rooting 4.3 via toolkit :|
They're goog to go right?!
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
Well the kernel may contain something which allows support and causes no damage so yes.
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Flash issues

I'm on twrp 2.6.3.0 and anytime I try and flash a new 4.4 ROM the install fails.
Sent from my Nexus 4 using xda app-developers app
wrong advice, my mistake... thanks for the reminding simms22.
But I wanna stay rooted
Sent from my Nexus 4 using xda app-developers app
You don't have to unroot. Just download and flash TWRP 2.6.3.2. On that build, they fixed the issues of 4.4 ROMS incorrectly flashing. Using it myself with no problems. Its in Original Android Development if I'm not mistaken
Flashing 4.4 Factory Image issues
Currently on my Nexus 4.
Android 4.3 Unlocked and Rooted
Kernel Version: 3.4.0-perf-gf43c3d9
Build: JWR66Y
Baseband: M9614A-CEFWMAZM-2.0.1700.84
Using ClockWorkMod Recovery v6.0.4.3, when trying to flash the 4.4 factory image .zip file on the SD Card I keep getting an "Installation Aborted" error after "Installing update..." step and the red Triangle on the android figure.
When attempting to sideload using stock recovery, getting a "Signature Verification Failed"
Any Suggestions? Thanks
darkfire2040 said:
I'm on twrp 2.6.3.0 and anytime I try and flash a new 4.4 ROM the install fails.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
If you haven't already tried it, under Mount uncheck system, that solved the problem for me.
Yeah I wanna stay in twrp so I will try flashing the latest. The error I'm getting is. Error while trying to update binarys
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will_chrome said:
you've got to unroot and back to stock rwcovery 1st if I'm not mistake. the guide to flash stock rom can be found in http://forum.xda-developers.com/showthread.php?t=2010312
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Click to collapse
wtf??? never ever give advice on android ever again!
op, all you have to do is update your recovery to twrp latest(v.2.6.3.3). flash your rom, flash your 4.4 gapps, and flash the latest supersu then reboot.
simms22 said:
all you have to do is update your recovery to twrp latest(v.2.6.3.3). flash your rom, flash your 4.4 gapps, and flash the latest supersu then reboot.
Click to expand...
Click to collapse
I will chime in on this one. I too have had constant failures with TWRP trying to flash ROMs lately. I'm running 2.6.3.3 and everything results in failure. I've tried the unchecking of system mount, multiple downloads with verified MD5s, sideloads, etc. Nothing is working.
Sent from my Nexus 4 using Tapatalk
ph37rd said:
I will chime in on this one. I too have had constant failures with TWRP trying to flash ROMs lately. I'm running 2.6.3.3 and everything results in failure. I've tried the unchecking of system mount, multiple downloads with verified MD5s, sideloads, etc. Nothing is working.
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
next time you flash, after it fails, boot into the bootloader from the recovery. then, from the bootloader, go into the recovery again and flash.
simms22 said:
next time you flash, after it fails, boot into the bootloader from the recovery. then, from the bootloader, go into the recovery again and flash.
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Click to collapse
Recognizing your knowledge and experience so asking you to explain why that works. Does something in the internals get reset?
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ph37rd said:
Recognizing your knowledge and experience so asking you to explain why that works. Does something in the internals get reset?
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
ill be honest, i dont know why. but i do know that it has worked for many. the alternative, which works 100% of the time, would be to delete your recovery, then flash it again. btw, did it work for you?
simms22 said:
ill be honest, i dont know why. but i do know that it has worked for many. the alternative, which works 100% of the time, would be to delete your recovery, then flash it again. btw, did it work for you?
Click to expand...
Click to collapse
I won't be able to experiment for a couple of weeks. I do know that I've wiped my phone four times or more in the last week with the 4.3 and 4.4 factory images and either manually or using one of the tool kits have added TWRP custom recovery and rooted the phone. Each time trying to flash a ROM it would result in a failure.
Next time I get the chance, I'll give your suggestion a shot and let you know. Are there logs I can capture that might prove useful?
Sent from my Nexus 4 using Tapatalk
ph37rd said:
I won't be able to experiment for a couple of weeks. I do know that I've wiped my phone four times or more in the last week with the 4.3 and 4.4 factory images and either manually or using one of the tool kits have added TWRP custom recovery and rooted the phone. Each time trying to flash a ROM it would result in a failure.
Next time I get the chance, I'll give your suggestion a shot and let you know. Are there logs I can capture that might prove useful?
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
na. really the only 100% working fix is to delete the recovery, then reflash.
simms22 said:
na. really the only 100% working fix is to delete the recovery, then reflash.
Click to expand...
Click to collapse
So essentially I've done that with each factory image installed, correct? I'll have to read up on ADB and Fastboot to get the commands to remove the existing recovery. Will be a good way to kill some time (such the life I lead, being envious is not good for your soul)...
Sent from my Nexus 4 using Tapatalk
ph37rd said:
So essentially I've done that with each factory image installed, correct? I'll have to read up on ADB and Fastboot to get the commands to remove the existing recovery. Will be a good way to kill some time (such the life I lead, being envious is not good for your soul)...
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
no, you just flashed the next version of the recovery over the last. occasionally, something doesnt want to update in the partition, so clearing the previous recovery before flashing the new one will take car of it.
simms22 said:
no, you just flashed the next version of the recovery over the last. occasionally, something doesnt want to update in the partition, so clearing the previous recovery before flashing the new one will take car of it.
Click to expand...
Click to collapse
OK that confuses me. If using fastboot to place a new boot loader, radio, recovery and ROM are onto the phone and I have to 'fastboot flash recovery recovery.img' to replace the stock recovery that doesn't wipe out the stock recovery? Fabulous sentence structure.
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Going from 4.2.2 to 4.4.2

Hi there, I'm currently rooted with 4.2.2 and I want to upgrade to the latest which I believe is 4.4.2, after a brief check I don't see the toolkits supporting this so can someone give me a clue on what to do? Is it upgrade to 4.3 then 4.4 and finally 4.4.2 or can I just jump from my current to 4.4.2?
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TomAshcroft said:
Hi there, I'm currently rooted with 4.2.2 and I want to upgrade to the latest which I believe is 4.4.2, after a brief check I don't see the toolkits supporting this so can someone give me a clue on what to do? Is it upgrade to 4.3 then 4.4 and finally 4.4.2 or can I just jump from my current to 4.4.2?
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
If your on stock ROM and kernel and recovery just check for updates under about tablet system updates. If your running a custom ROM or kernel then you'll want to get to stock first. Also you can just download the factory image and adb flash it. Just search how to install 4.4,2 factory image with adb on nexus 10. There's plenty of guides.
Sent from my white LG Nexus 5
abdel12345 said:
If your on stock ROM and kernel and recovery just check for updates under about tablet system updates. If your running a custom ROM or kernel then you'll want to get to stock first. Also you can just download the factory image and adb flash it. Just search how to install 4.4,2 factory image with adb on nexus 10. There's plenty of guides.
Sent from my white LG Nexus 5
Click to expand...
Click to collapse
Adb? I think you mean fastboot ?
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mrgnex said:
Adb? I think you mean fastboot ?
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Click to expand...
Click to collapse
Yes fastboot my bad. I meant use adb commands to flash like fastboot flash ...
My brain was dead from stuyding lol
Sent from my white LG Nexus 5
I want to remain rooted though, also I'm trying to use the system update but it says restarting in 10, counts down then doesn't restart.
Since I want to remain rooted but just upgrade to 4.4.2 what can I do? I can't find an appropriate video.
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Well attaining root again only takes about 1 minute....
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TomAshcroft said:
I want to remain rooted though, also I'm trying to use the system update but it says restarting in 10, counts down then doesn't restart.
Since I want to remain rooted but just upgrade to 4.4.2 what can I do? I can't find an appropriate video.
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
Just update and root again. It takes a minute using one of the toolkits. Or you can just flash the super su zip which is even quicker if you have a custom recovery. Either way it's easy and quick
Sent from my white LG Nexus 5
I can't use system updates, it won't restart after counting down from 10 it just hangs there. I also don't think the toolkits have 4.4.2, I'm pretty sure I downloaded the right files, I just don't know the commands to use in CMD.
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TomAshcroft said:
I can't use system updates, it won't restart after counting down from 10 it just hangs there. I also don't think the toolkits have 4.4.2, I'm pretty sure I downloaded the right files, I just don't know the commands to use in CMD.
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
Wugs toolkit has it.
Extract it and put it in the correct folder with Fastboot capabilities and use the commands
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img (this'll give you stock recovery)
fastboot flash userdata userdata.img (only do this one if you want to completely reset and delete everything on your internal SD card. Don't do this step of you want to keep your files like pictures and music on SD card)
Sent from my white LG Nexus 5
Okay, going to try Wugs. Ah, I'm mistaken then, I just have the factory image and update superSU zip files.
See this is what I don't get, it asks me my build, which is 4.2.2. And then asks to download the image, but I want 4.4.2 so do o just change it to that?
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TomAshcroft said:
Okay, going to try Wugs. Ah, I'm mistaken then, I just have the factory image and update superSU zip files.
See this is what I don't get, it asks me my build, which is 4.2.2. And then asks to download the image, but I want 4.4.2 so do o just change it to that?
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Click to expand...
Click to collapse
Yeah. Choose 4.4.2. Asking your build is just so when you flash kernnel and recoveries it flashes a compatible one. But since your just flashing stock images. Just do that. But again remember it'll wipe everything so backup your SD card to a computer first
Sent from my white LG Nexus 5
Okay trying this now, which option would I choose as my boot loader is already unlocked and I'm already rooted
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I managed to get to the point where it boots TWRP and then just had "waiting for device"
Edit: got to this same point 3 times now, tried rebooting but I'm still on 4.2.2, could you tell me what files I need to go ahead and flash it using cmd?
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If you use Wigs toolkit you can flash the new update if you do a complete restore with in root. Then you can re root. Just go to flash stock + unroot then click the images drop down down box. Pick the mantaray-manta : android 4.4.4- build KOT49H then click the button that shows automatically download. After install re root and restore. Backup everything first it makes a quicker restore.
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TomAshcroft said:
I managed to get to the point where it boots TWRP and then just had "waiting for device"
Edit: got to this same point 3 times now, tried rebooting but I'm still on 4.2.2, could you tell me what files I need to go ahead and flash it using cmd?
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
Gimme a sec ill type this up for ya, I just want to make sure its good and detailed.
Sent from my Nexus 10 using XDA Premium 4 mobile app
---------- Post added at 06:33 AM ---------- Previous post was at 05:43 AM ----------
First, go download the image:
https://developers.google.com/android/nexus/images
While that is downloading, make a new folder on the desktop and name it FLASH, also for extracting the file once it is downloaded I reccomend total commander:
http://www.ghisler.com/download.htm
Also head over to here to download adb and fastboot without the android sdk:
https://docs.google.com/file/d/0B1MWexkzYR_bV2VlaF9UcHVBU00/edit?usp=docslist_api
Once the zip file with adb and fastboot is downloaded extract the files into the FLASH folder. Now that we've done all this the image should be downloaded, extract the contents to the FLASH folder. Now open up command prompt. In command prompt type the following(excluding the quotation marks):
"cd C:\Users\*username*\Desktop\FLASH"
*username* Is the name of the user. Now turn off your device then boot your device into fastboot mode(hold the power+volume up+volume down buttons) once your device is in fastboot mode connect it to your computer. In command prompt type(again excluding quotations):
"fastboot devices"
After that you should see your nexus device in fastboot mode, if you have no important data and don't care about losing everything(me) you can just type this in command prompt(no quotations):
"flash-all"
But if that does not work or you do have important things, type:
"fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img”
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Hi guys thanks for all the help, I decided to go with Wugs toolkit, unrooted, then re rooted with 4.4.2. All worked fine just need to restore my data now
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[Q] stuck in a boot loop

So i manage to remover the boot failure on from fastboot mode since it has been there everytime it boots up and it didnt boot up fully but after using droid utility to downgrade to 4.1.2 it no more goes to fastboot but now its stuck on a bootloop and my device is unlocked. So my question is. Can i install a rom to get out of this bootloop or is there any other way to get of the boot loop? Please i really need help!!!!
You should follow this to go back to 4.1.2 I would try to rsd back to whatever firmware you were on or just kk... Do you have a custom recovery on there to try and flash the ROM... What update were you on prior to doing what you did
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ezknives said:
You should follow this to go back to 4.1.2 I would try to rsd back to whatever firmware you were on or just kk... Do you have a custom recovery on there to try and flash the ROM... What update were you on prior to doing what you did
Sent from my XT907 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I was running 4.4.2 kk but after ive tried to flash a image by using flasify to remove the boot loader unlocked message but it failed and it would start up on fastboot and thats it but after using droid utility to try to go back to 4.1.2 but after the reboot it stays in the bootloader message. but i do have a custom recovery im using twrp
I'm guessing you didn't make a backup before trying to flash the image... Or at all... I would say just restore your back up... If you want you could try to flash a ROM it would have to be comparable with whatever kernel you have and it may not work as you tried to use (I'm guessing) matt's utility... I would rsd the 4.4.2 firmware or use house of moto... If you want rid of the warning boot logo ATTACK just released some.... Always make a backup before attempting anything of that nature...and if you want to go back to 4.1.2 after the restore follow the method linked above
Sent from my XT907 using XDA Premium 4 mobile app
ezknives said:
I'm guessing you didn't make a backup before trying to flash the image... Or at all... I would say just restore your back up... If you want you could try to flash a ROM it would have to be comparable with whatever kernel you have and it may not work as you tried to use (I'm guessing) matt's utility... I would rsd the 4.4.2 firmware or use house of moto... If you want rid of the warning boot logo ATTACK just released some.... Always make a backup before attempting anything of that nature...and if you want to go back to 4.1.2 after the restore follow the method linked above
Sent from my XT907 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yeah well for now on ill try to make a backups more often but is there any stock roms availible for my device
Not recovery flashable....you should also search around for yourself more...
Sent from my XT907 using XDA Premium 4 mobile app
LIKEABEAST said:
Yeah well for now on ill try to make a backups more often but is there any stock roms availible for my device
Click to expand...
Click to collapse
I've managed to fix my phone with house of moto and its really useful also I want to thank you by trying to help me

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