fastboot boot question - Shield Q&A

Note: This is not related directory to the Shield, it's about HP Slate 21 (they both use Tergra 4)
I would like to try the root_tn7 image on the Slate, I'm booting into bootloader mode, I see my device in the fastboot devices command.
But when I try to boot the root_tn7 (using: fastboot.exe boot root_tn7.img) it gives me:
downloading 'boot.img'...
OKAY [ 0.849s]
booting...
OKAY [ 0.071s]
finished. total time: 0.926s
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Which means it's totally ignores the root_tn7.img
I heard that there is a kernel parameter (with -c) which needs to be passed.
Any suggestion to which parameters?

:\ It should work... "fastboot boot root_tn7.img". Have you tried removing the boot.img from the folder?

There is no boot.img in the directory I'm in....

It seems it just uses "boot.img" as what it's doing...
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The TF 701 is also tegra 4 based. Yesterday I was able to use a TF 701 Clockwork disk in fastboot boot mode to root the slate 8.
Even if the root script doesn't work, if that image will boot your system you ought to be able to push su to /system/bin and chmod it, then install SuperSU by hand if need be.
Try the one from this thread:
http://forum.xda-developers.com/showthread.php?t=2524401
That specifically targets Tegra 4 systems running Android 4.2. There's a second TF701 clockwork tool, but it targets a specific bootloader and would not boot my Slate 8.
Good luck!

Related

Boot loop needed some help

So I used Rumrunner to get S-off but for some reason I got into a boot loop. I searched the forums and it seemed if I flashed a rom it would help fix it. I flashed Magio rom but here my problem. I can get to twrp I can mount my phone as well and adb recognizes it when its mounted I can push files and can flash roms but I cant seem to get fastboot working to flash boot.img in the bootloader it says fastboot usb but when I do adb devices it only shoes list of devices attached
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is there any rom or ruu i can flash through recovery to get my phone up and running? i have windows 8 and windows 7 64 but neight seems to worrk in getting fastboot going
trying to supply all the info i can when I put my ohine into fastboot mode and do adb devices it dosent show my phone id, but when i do fastboot getvar all it brings up all my phones info
my question s is there a file i can flash from recovery that I can get my phone back up?
if you haven't solved this. remove the file /system/bin/hcheck
jmz said:
if you haven't solved this. remove the file /system/bin/hcheck
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hey hey thanks for the reply, I fixed it, I just locked the bootloder after I flashed a rom and it was all good. but hey thanks for the reply man

[Q] Moto G bricked on M of the Mororola

Hi
After doing a hard reset on my phone, he fought on the screen with the logo of Motorola and will not start.
I've tried reinstalling the stock rom , but I could not because the mfastboot shows the following error ...
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JONAS D. said:
Hi
After doing a hard reset on my phone, he fought on the screen with the logo of Motorola and will not start.
I've tried reinstalling the stock rom , but I could not because the mfastboot shows the following error ...
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As your bootloader was locked i don't think them partitions can be flashed how ever you should be able to still flash the system sparse images as if you have done a hard reset on your phone the partitions your trying to flash wouldn't be effected anyway.
Just go into bootloader they and flash just the system sparse images then boot into recovery if you can and erase the cache.
The bootloader was never unlocked. The problem may be that I'm trying to install the ROM 4.4.4 first? Think if I try 4.3 or other older versions it stops to present such errors?
Did you update via OTA to 4.4.4 if so then you must use a 4.4.4 image. Bare in mind you'll need to use the Right CID numbered frimware.
Have you tried to flash the System partition i.e the system system.img_sparsechunk.0 - system.img_sparsechunk.3 , give that a go.
I tried to install the images of the system and it still fails.
I do not know what to do.

FAILED (remote : variable not found) when flashing stock images

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I get that error message when flashing the stock images on my unlocked google pixel 3. I now have no OS on my phone I don't believe as booting it up shows "unknown command".
Anyone know what to do?
https://imgur.com/0IjGoic if the image doesn't load
HueBearSong said:
I get that error message when flashing the stock images on my unlocked google pixel 3. I now have no OS on my phone I don't believe as booting it up shows "unknown command".
Anyone know what to do?
https://imgur.com/0IjGoic if the image doesn't load
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Try flashing the system.img to both slots.
Sent from my [device_name] using XDA-Developers Legacy app
I had the same problem but managed to resolve it.
the way to do it is to do the followings:
1) Install the updated adb tool files from google official framework website here (Very very very important)
https://developer.android.com/studio/releases/platform-tools
2) download the factory image file and unzip it inside a folder. For example "A"
3) after unzipping the rom file, you will find another rom file, unzip it also to the same folder "A"
4) unzip the adb tool downloaded from step 1 and put them in the same folder "A"
5) Double click on "Flash all" to execute the command.
6) Enjoy

Question Block in boot after fresh install with LMSA

Hi,
I am fairly new to flashing and rooting android devices. I managed to root my tablet a few months ago using the following sc00ter98 procedure:
Pad 11 (TB-J606F) Unlock! Magisk! RoooooT !!!
https://4pda.to/forum/index.php?showtopic=1014576&view=findpost&p=107199725 Translator from Russian: https://www.deepl.com/translator 😁🙃(y)
forum.xda-developers.com
But after that I noticed that my tablet no longer received Android updates, I wanted to manually update Android using the LMSA utility. I made a backup of my data before that so I could afford to lose everything. But once the process was finished my system won't boot anymore. In fact I am stuck on a menu at startup not knowing what to do.
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This is the only menu I have access to. I can change the "START" with volume buttons and there are :
Restart bootloader
Recovery Mode
Power off
Boot to FFBM
Boot to QMMI
But watherver I choose, this only reboot the tablet and then go back to this menu.
I would then very much need your know-how if you please!
Thans by advance,
Jiddu
Run this command:
fastboot set_active a
It worked very well !! Big Thanks !
What was the point after my "Rescue" action with LMSA ?
AndroPlus said:
Run this command:
fastboot set_active a
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Failed : Slot change is not allowed in Lock State. Help me

[Help] Fastboot mode.

I am unable to get into fastboot mode on my At&t Motivate 2. I do have OEM unlock, but when I use adb reboot fastboot, or hold the power key + up vol. It get's stuck on the screen saying => FASTBOOT mode... I am not sure what I am doing wrong (if I am). It's model number is EA211002. It stays on this screen no matter how long i leave it.
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Be happy, you sucessfully entered Fastboot mode. Now direct Fastboot on PC per Windows CMD and/or PowerShell what action(s) to perform.
Fastboot Commands List and Cheat Sheet with Explanation
Fastboot is a command-line tool for Android. You can execute Fastboot commands to flash and boot factory and TWRP recovery images.
technastic.com
I have the same phone does anyone have the stock firmware ?
also where did you get the fastboot drivers for it? can you sent them to me ? please @jwoegerbauer @Synaronel
@IXDevoXI
Latest ADB and Fastboot drivers you can obtain here:
SDK Platform Tools release notes | Android Studio | Android Developers
Android SDK Platform-Tools is a component for the Android SDK.
developer.android.com
I finally figured out the whole fastboot thing with this phone lol and which one you need to be in and so forth it is the most confusing phone I’ve ever tried to root but now I’m left with that stupid dm-verity corrupt issue

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