Database Users

[Q] Bricked/Stuck in Fastboot (How to Remove TWRP?)

So, I've been up all night after buying this Fire trying to fix it, and I've decided to go along with my original decision to just return it. I'll rewind a bit to give you guys a play by play to show how I got to what I've determined is a FUBAR situation, and hopefully you guys can help me at least remove TWRP so I can return it without much issue.
If it's tl;dr, I bolded the main errors I got from the console and TWRP
1. I purchased my Kindle Fire from Best Buy with a 1 Year Protection plan, so in all reality, I could just break it in half and get a replacement, but I don't necessarily want a replacement.
2. I initially purchased it for my mom, but when I found out that the stock Fire OS didn't have Korean input or the option to have a Korean interface, I did a bit of research and started reading up on how to root, how to install the market, things like that. My mom's not a native English speaker, so this was an important thing for her, etc etc.
3. I read multiple guides on this forum and others, and rooted using the guide found here , since a few of the threads I was reading through seemed to point in that direction, and I had a bad experience with SOCR on my Droid X.
4. The root was successful, so I moved on and used KFU .3 to do the rest of the important bits; android market, etc etc.
5. Everything was working fine, but, after looking through it, I realized that it wouldn't work for what I needed it to, and I would have to return it, so, I attempted to unroot the tablet using TWRP's interface.
6. I cleared the cache, the devlak cache, and system wiped, then restored using the system restore point in the TWRP folder, figuring after that, the Kindle would boot up with stock OS and then I would just system restore the default way. This method got me stuck in a recovery-loop, and no matter what I did, the Fire always booted to recovery mode.
7. I figured I had bricked it, so I followed the steps in this guide, but always seemed to have problems at the step where I have to chmod 755 of the zergRush. I get "Not a directory" error, which after doing some research, I believe is on account of me no longer having rw privilege?
8. I looked around some more, ignoring that guide, and found a method to force-push the amazon update, but TWRP would no longer run the update, saying it could not Mount the SD Card due to an Invalid Argument, and I have yet to determine what that means.
9. After manually changing it to fastboot in an attempt to at least get it out of recovery mode, I have the Fire recognizable as a device in my ADB, but it is now stuck in a fastboot loop, and when I attempt to re-root it in order to give myself rw privileges again, it stalls on "waiting for device" and never gets past that point.
Update
I tried to reroot while the Fire was stuck in the Kindle Fire splash screen using the KFU tool, and used zergRush, but the error message I got was - exec '/system/bin/sh' failed: No such file or directory (2) - 4 times over.
What I think the problem is, is that when I wiped the cache/devlak cache/ and system reformatted, it wiped my SU privileges, and as a result, no longer allowed me to write the backup to the Fire, therefore leaving me in a perpetual state of limbo?
What I'm asking for from you is;
What can I do to fix this?
Is there any more information you need/want from me?
And finally,
Is there an easy way for me to remove TWRP from the system?
Thank you.

Hi!
There are a lot of great tips regarding TWRP and fastboot over at RootzWiki.
Some users are reporting the same fastboot loop that you currently experience. I suggest you read the thread and follow the suggestions. One suggestion which you may want to try first is the one in this post.

Thank you for the reply. I did as you suggested and followed the links and the post on the guide, and although that did change the nature of my fastboot loop, I'm still stuck in a fastboot loop.
I was initially stuck in a fastboot loop on the Kindle Fire logo, which I determined by running fastboot devices, while it was stuck on that logo, and it showed the device as being fastboot. After following that guide, and using the hard reset, then using the "How to Unbrick" in order to change back to a normal boot, I'm stuck in a fastboot loop on the TWRP splash screen of a triangle with a fire in it. I'll continue looking through the guides to see if I can solve the problem, but thank you once again, and sorry for not clarifying which type of fastboot loop I was in.

Sorry it didn't work out! However...
isjonamon said:
I'm stuck in a fastboot loop on the TWRP splash screen of a triangle with a fire in it.
Click to expand...
Click to collapse
I really though the solution posted over at RootzWizi would solve this problem. Getting stuck at the yellow triangle is 'common'. I really though adding
%SingleAdbInterface% = USB_Install, USB\VID_18D1&PID_0100
%CompositeAdbInterface% = USB_Install, USB\VID_18D1&PID_0100&MI_01
Click to expand...
Click to collapse
to android_winusb.inf would solve it. But if you are able to recognize your Fire in fastboot mode via your PC, I guess that's not where your problem is.
Is this tip to any help?
And lastly... the great Kindle Fire Utility thread is worth checking out, in case you haven't already
I hope you'll find a solution to this problem!

I've tried the tip you linked me to, and sadly it didn't do anything for me.
Moving on, though, I'm reading through the KFU thread again to see if there was anything I missed, and decided I might as well try re-flashing to CM7 to see if I can at least get it working up to a rooted/rom standpoint. I figure from there, I can at least have a working platform to factory reset from. If I can't do that... well...
Does anyone know a way to just return everything to factory settings? To just wipe everything and make it so it turns on like it's out of the box? Either through adb commands, or TWRP or anything?

Sorry for the double post, but I managed to get CM7 back up on my Fire, and managed to regain SU access. Can anyone point me to a guide to restoring it back to its former "glory" so I can return it?
Fixed it!!
For anyone interested, this is what worked for me;
From where I ended up with the problem, I followed hachiueno's advice and read through the KFU's thread as well as the TWRP thread on Rootzwiki, that led me to adding those lines to the device firmware, which I think was the first step in the solution, so...
Step 1. Add
%SingleAdbInterface% = USB_Install, USB\VID_18D1&PID_0100
%CompositeAdbInterface% = USB_Install, USB\VID_18D1&PID_0100&MI_01
to android_winusb.inf , then restart your computer with your Fire unplugged.
After that, I was inspired, through reading the KFU thread, to attempt to manually install CM7 since I wasn't having much luck zergRushing on my own, so, I went to the CM7 thread and pushed the Update.zip there, and used my TWRP to install that, effectively rebuilding my filestructure, since it seems the Kindle Fire doesn't have so much as a SH folder in it.
Step 2. MANUALLY (maybe) install CM7 if you can.
Once I got CM7 up and working, using the USB mounting option, I replaced the update.zip in the sdcard folder with the Amazon 6.2 firmware downloaded from their website, renamed to update.zip, and then unmounted my fire from my laptop.
Step 3. Download the Amazon 6.2 Firmware from amazon's website (I can't post...), rename it to update.zip, and replace the CM7 mod update.zip in your /sdcard directory with it.
Then, I figured if I ran TWRP like it was supposed to run, and just ran the update.zip like any other ROM, it should fill in the blanks in the filesstructure, bypassing Amazon's own lack of certain folders, and various other things, filling in the gaps as they were. The next step might be entirely redundant, since I'm a bit clueless, and it might have been entirely luck on my part, but I initially forgot to wipe my cache, devlak cache, and system restore, so I did all that and did it again, and my wishful thinking leads me to believe that doing that saved my ass from having a crapton of errors....
Step 4. Using the install function on TWRP, install the renamed Amazon update.zip, reboot, clear your cache, devlak cache, system reformat, then reinstall the update.zip. Reboot one more time, and you should come up to the Kindle Fire splash screen. Leave it for a few minutes, and it'll be like it just came out of the box.
Thanks for all your help. I love you. Seriously. No homo. Maybe a little. I love you.

Good to hear that you managed to boot it again!
isjonamon said:
Sorry for the double post, but I managed to get CM7 back up on my Fire, and managed to regain SU access. Can anyone point me to a guide to restoring it back to its former "glory" so I can return it?
Click to expand...
Click to collapse
This guide seems to be an easy solution to this. However, no one has replied any success or failure, so not sure if it's 100% bulletproof for everyone... if I were you, I would follow JackpotClavin's guide here. He's a known developer here and knows what he's doing, and many successful replies from users having used this method... so yeah, just to be 'sure' (can you ever be...?) that you won't experience any further problems, I recommend the last one.

I actually used the first guide in order to get the Amazon update, but couldn't post a reply since I'm still a noob. I had to do a few things differently, and ultimately got a few different results, but posted up my own version of the steps.
Once again, thanks for all your help!

It seems to me that the majority of problems people are having are driver related. When I was using KFU to install TWRP it stalled half way through and just said waiting for device. Just had to install drivers again and it happily completed the install.
Sent from my Kindle Fire using xda premium

all u needed do initially was change bootmode it seemed. thrn u went and did all kinds of stuff that wasnt necessary.
sent from my kindle fire

smirkis said:
all u needed do initially was change bootmode it seemed. thrn u went and did all kinds of stuff that wasnt necessary.
sent from my kindle fire
Click to expand...
Click to collapse
I actually changed bootmodes quite frequently, following multiple threads and guides, changing from recovery, to normal, to fastboot, and back and forth when called for. Changing to fastboot stuck me in an eternal fastboot loop, changing to normal reverted me to a recovery loop, and recovery was the only bootmode I could access adb from.
Sheolrock said:
It seems to me that the majority of problems people are having are driver related. When I was using KFU to install TWRP it stalled half way through and just said waiting for device. Just had to install drivers again and it happily completed the install.
Sent from my Kindle Fire using xda premium
Click to expand...
Click to collapse
Driver issues seemed to be part of the problem for me, but just updating the drivers didn't fix the issue entirely. I'm jealous that you got it to work with just a driver update...

Hey i believe im in the same problem but i keep reading the posts and im still stuck and i have no idea what to do im worried that i cant fix it.... Some please help me ASAP
Thanks in advance

wrong boot mode ?
with adb:
adb shell su -c "idme bootmode 4000"
adb reboot
with fastboot:
fastboot -i 0x1949 oem idme bootmode 4000
fastboot reboot
bad drivers ?
http://forum.xda-developers.com/showpost.php?p=20855280&postcount=54

I have had the looping problem and none of these would fix it. I got it to work by adding those lines to android_winusb and running the run.bat, trying to make it switch to normal mode as the kindle was turning on. Somewhere along the yellow triangle when it was loading it accepted the command from KFU. Hope this helps, only thing that worked for me.

the drivers i included contain all the necessary entries in adb_usb.ini and android_winusb.inf

Please can someone help me!?
I did idme bootmode 4002 and now my fire won't boot up or show up in android adb. Any solution?

awidawad said:
I did idme bootmode 4002 and now my fire won't boot up or show up in android adb. Any solution?
Click to expand...
Click to collapse
you switched it to fastboot (4002) - adb commands are not working in fastboot mode !
little guide:
driver (under android phone):
normal & recovery boot: -> android composite adb interface
fastboot: -> android adb interface
here all the possible commands to change bootmode:
with adb (secure kernel):
adb shell su -c "idme bootmode 4000"
adb reboot
or (twrp or unsecure kernel):
adb shell idme bootmode 4000
adb reboot
with fastboot:
fastboot -i 0x1949 oem idme bootmode 4000
fastboot -i 0x1949 reboot
or:
fastboot -i 0x18d1 oem idme bootmode 4000
fastboot -i 0x18d1 reboot
or:
fastboot oem idme bootmode 4000
fastboot reboot
the number is the bootmode you want to switch to:
normal boot -> 4000
fastboot -> 4002
boot to recovery -> 5001
and if you know:
normal boot -> adb commands YES -> fastboot commands NO
fastboot -> adb commands NO -> fastboot commands YES
recovery -> adb commands YES -> fastboot commands NO
then you only have to count 1 and 1 together and can master nearly each hanging situation !
Click to expand...
Click to collapse

Not sure if this is totally helpful to anyone but originally I thought the thread was started with a posting of being stuck bootlooping into twrp in recovery mode with a complete loss of file structure. I had this same issue my Kindle would not start in anything but straight to twrp and if I tried to flash my CM9 ICS rom it was not there and only the twrp folder empty was. So I went to mount and mounted usb storage and moved the stock update zip file from amazon to the twrp folder and flashed that. Worked like a charm now I appear to be straight stock. I am no developer of this stuff I just am a bit of a tinkerer so don't understand all the code stuff but it starts like a normal kindle and appears totally stock. So hopefuly that helps you return your deice to stock for return or to continue wahtever modifications you intend.
2992

ADB shell not reconizing it.

I rooted it and installed CM7 on it, CM7 was getting a boot loop so I did a factory reset, I read online that I should reinstall CM7 to help get rid o the boot loop, i turned off the kindle, putting it into recovery mod (like a t**t). Stuck in FFF boot loop, windows reconizses its an ADB device but nether the KF utility, nor ADB thinks its plugged in. I can mount it as a mass storage device. Any help is appreciated.
Edit: This picture better explains what is going on, but as i am a new user, i cannot post a link so I'm sorry but you will have to copy and paste this : i.imgur.com/3Lcsh.png

Did you try this?
adb shell
idme bootmode 4000
reboot

Droidanian said:
Did you try this?
adb shell
idme bootmode 4000
reboot
Click to expand...
Click to collapse
As i was trying to explain adb shell keeps telling me the device isn't found
And before you ask, yes i have installed the drivers and yes i have reinstalled them and yes i have rebooted the device and my computer

Did you try using the command prompt instead of the KFU? I had success doing it manually.

yup, no luck

Remove the KF, uninstall the drivers, restart Windows, and install them manually.
That should work.

no luck, still stuck

Did you edit the "adb_usb" and "android_winusb" files?

HOLY **** after ~ 4 hours of tinkering i got it!!!
Within the KFU i installed the TWRP recovery and while it said waiting for device, I restarted it. I had done this before but it didn't take.
I LOVE THE KFU, IF I HAD ANY MONEY I WOULD GIVE IT TO THEM.
If anyone in the future has this problem and has any questions, PM me and I will try to help you as best as I can.

Unbricking Kindle stuck at Boot Logo/Recovery loop

Before you get all mad at me, I know there is another thread for this. This is a method that has worked for me when all other methods have failed.
I found out about this after looking around the interwebs for a while when my Kindle was stuck in a recovery loop, or stuck at the boot logo.
Your Kindle is stuck at the boot logo? I think I can help! Follow these steps!
This is WINDOWS ONLY for the time being!
1. Download and extract Kindle Fire Utility. You should be able to easily find it on the xda forums.
2. Reboot your PC.
2.5. If you have FIREFIREFIRE, go into the drivers folder in the Kindle Fire Utility and open up adb_usb.ini. Add the following line:
Code:
0x18d1
Do not delete the other lines.
3. After the reboot, connect your Kindle via USB. Go into where you unzipped Kindle Fire Utility, and run install_drivers.bat
4. Once that's done, open up a command prompt and navigate to the "tools" folder of the Kindle Fire Utility.
You do this by using this command:
Code:
cd (File path to tools folder)
Or in my case:
Code:
cd C:\Users\ZombiePiratez\Desktop\KFire Utility\Kindle Fire Utility\tools
5. After that, run the following commands:
If you DO NOT have FIREFIREFIRE, then use these commands:
Code:
fastboot -i 0x1949 oem idme bootmode 4000
fastboot -i 0x1949 reboot
If you DO have FIREFIREFIRE
Code:
fastboot -i 0x18d1 oem idme bootmode 4000
fastboot -i 0x18d1 reboot
If all else fails, try these commands:
Code:
fastboot oem idme bootmode 4000
fastboot reboot
6. Hopefully by this point, your Kindle will be rebooting. THIS WILL NOT WORK FOR EVERYONE. Only people stuck at the bootlogo, or in a recovery loop.
Now, go have fun with your newly awesome and unbricked Kindle Fire!

What is firefirefire? Have yet to see a formal definition of that

androidcues said:
What is firefirefire? Have yet to see a formal definition of that
Click to expand...
Click to collapse
Its a bootloader
Sent from my Kindle Fire using xda premium

Thanks Man, I was messing around with CM7 and I rebooted into recovery not knowing that it would keep me in a recovery boot loop and KFU wasn't helping trying to help me.

Tierehl said:
Thanks Man, I was messing around with CM7 and I rebooted into recovery not knowing that it would keep me in a recovery boot loop and KFU wasn't helping trying to help me.
Click to expand...
Click to collapse
Happy to help

Zombiepiratez said:
Before you get all mad at me, I know there is another thread for this. This is a method that has worked for me when all other methods have failed.
I found out about this after looking around the interwebs for a while when my Kindle was stuck in a recovery loop, or stuck at the boot logo.
Your Kindle is stuck at the boot logo? I think I can help! Follow these steps!
This is WINDOWS ONLY for the time being!
1. Download and extract Kindle Fire Utility. You should be able to easily find it on the xda forums.
2. Reboot your PC.
2.5. If you have FIREFIREFIRE, go into the drivers folder in the Kindle Fire Utility and open up adb_usb.ini. Add the following line:
Code:
0x18d1
Do not delete the other lines.
3. After the reboot, connect your Kindle via USB. Go into where you unzipped Kindle Fire Utility, and run install_drivers.bat
4. Once that's done, open up a command prompt and navigate to the "tools" folder of the Kindle Fire Utility.
You do this by using this command:
Code:
cd (File path to tools folder)
Or in my case:
Code:
cd C:\Users\ZombiePiratez\Desktop\KFire Utility\Kindle Fire Utility\tools
5. After that, run the following commands:
If you DO NOT have FIREFIREFIRE, then use these commands:
Code:
fastboot -i 0x1949 oem idme bootmode 4000
fastboot -i 0x1949 reboot
If you DO have FIREFIREFIRE
Code:
fastboot -i 0x18d1 oem idme bootmode 4000
fastboot -i 0x18d1 reboot
If all else fails, try these commands:
Code:
fastboot oem idme bootmode 4000
fastboot reboot
6. Hopefully by this point, your Kindle will be rebooting. THIS WILL NOT WORK FOR EVERYONE. Only people stuck at the bootlogo, or in a recovery loop.
Now, go have fun with your newly awesome and unbricked Kindle Fire!
Click to expand...
Click to collapse
Unfortunately this will only work if your windows based computer even recognizes the kindle, which mine doesn't. Thanks tho. I've given mine to my tech geek who has access to linux based system, so hopefully he will be able to recover my brick.
Sent from my MB860 using XDA App

Sorry about that. I wish I could help.

I am a newbie. I recover my kf using the recovery boot with kfu and it works fine now. how could
I know if it is in the recovery boot loop? Many thanks.
Sent from my GT-I9100 using XDA App

Zombiepiratez said:
Sorry about that. I wish I could help.
Click to expand...
Click to collapse
Its ok. I read everywhere its impossible to brick a kindle so im hoping that's true.
Sent from my MB860 using XDA App

My Windows PC wouldn't recognize my KF stuck in recovery mode, either. I think it reported in as an "unknown USB device" or something. I had to shut down the Kindle and then plug the USB in, which for whatever reason got my computer to recognize it. I think it might be similar to the effect of a battery drain?

*Snip*
Double post, fail.

CiggyPipe said:
My Windows PC wouldn't recognize my KF stuck in recovery mode, either. I think it reported in as an "unknown USB device" or something. I had to shut down the Kindle and then plug the USB in, which for whatever reason got my computer to recognize it. I think it might be similar to the effect of a battery drain?
Click to expand...
Click to collapse
Did it just immediately recognize it, or did you have to re-install drivers? And i'm not sure about the battery drain thing...

CiggyPipe said:
My Windows PC wouldn't recognize my KF stuck in recovery mode, either. I think it reported in as an "unknown USB device" or something. I had to shut down the Kindle and then plug the USB in, which for whatever reason got my computer to recognize it. I think it might be similar to the effect of a battery drain?
Click to expand...
Click to collapse
Tried that to no avail as well.
Sent from my MB860 using XDA App

Zombiepiratez said:
Did it just immediately recognize it, or did you have to re-install drivers? And i'm not sure about the battery drain thing...
Click to expand...
Click to collapse
I guess I should make note that by this point I'd uninstalled the driver I used. It was recognized as "kindle" once after I plugged it in while off, so then I went ahead and manually reinstalled the driver (from Jayce Ooi's site), which allowed the fastboot commands to work. Otherwise, the command would hang at <waiting for device>.

Thanks! My kindle fire was stuck at the firefirefire logo. My computer couldn't even recognize my kindle but I uninstalled the Android ADB composite interface and plugged it back in, when the kindle was off. Then I used your commands to get fastboot. I installed TWRP, now I'm stuck in TWRP and can't mount my sd... to flash any rom.

Thanks
Thanks for the info. i thought i'd bricked it and the info worked a treat. that will teach me to keep my mouth shut "of course i can root your kindle"

try fixing permissions under advanced, and then make sure only the sdcard box is marked in mount option.
Sent from my Amazon Kindle Fire using xda premium

Zombiepiratez said:
Before you get all mad at me, I know there is another thread for this. This is a method that has worked for me when all other methods have failed.
I found out about this after looking around the interwebs for a while when my Kindle was stuck in a recovery loop, or stuck at the boot logo.
Your Kindle is stuck at the boot logo? I think I can help! Follow these steps!
This is WINDOWS ONLY for the time being!
1. Download and extract Kindle Fire Utility. You should be able to easily find it on the xda forums.
2. Reboot your PC.
2.5. If you have FIREFIREFIRE, go into the drivers folder in the Kindle Fire Utility and open up adb_usb.ini. Add the following line:
Code:
0x18d1
Do not delete the other lines.
3. After the reboot, connect your Kindle via USB. Go into where you unzipped Kindle Fire Utility, and run install_drivers.bat
4. Once that's done, open up a command prompt and navigate to the "tools" folder of the Kindle Fire Utility.
You do this by using this command:
Code:
cd (File path to tools folder)
Or in my case:
Code:
cd C:\Users\ZombiePiratez\Desktop\KFire Utility\Kindle Fire Utility\tools
5. After that, run the following commands:
If you DO NOT have FIREFIREFIRE, then use these commands:
Code:
fastboot -i 0x1949 oem idme bootmode 4000
fastboot -i 0x1949 reboot
If you DO have FIREFIREFIRE
Code:
fastboot -i 0x18d1 oem idme bootmode 4000
fastboot -i 0x18d1 reboot
If all else fails, try these commands:
Code:
fastboot oem idme bootmode 4000
fastboot reboot
6. Hopefully by this point, your Kindle will be rebooting. THIS WILL NOT WORK FOR EVERYONE. Only people stuck at the bootlogo, or in a recovery loop.
Now, go have fun with your newly awesome and unbricked Kindle Fire!
Click to expand...
Click to collapse
I'm sorry but I tried all the steps above but KF's still stuck at boot logo. I flashed CM9 stock kernel 3.0 with FFF 1.4a and CWR, wiped everything and factory reset, then install...but it just hangs at the blue skating droid logo... any idea?

jamesphan said:
I'm sorry but I tried all the steps above but KF's still stuck at boot logo. I flashed CM9 stock kernel 3.0 with FFF 1.4a and CWR, wiped everything and factory reset, then install...but it just hangs at the blue skating droid logo... any idea?
Click to expand...
Click to collapse
The Unbrick utility won't help in your case. When the device hangs at the boot animation or goes to a blank screen afterwards, the problem is usually one of three things.
* the rom installed is corrupted
* you didn't wipe the necessary data before installing
* you tried flashing a rom that's incompatible with the recovery you are using (I'm betting this is most likely the case)
Try installing a different rom (preferably non-ICS) to see if that fixes the problem. Of so, check to see if you're using the latest version of CWM by Hashcode or install TWRP to run ICS based roms.
Any further questions regarding this matter should be redirected to the Q&A section.
[Edit:] For some reason I thought this was the thread for the Unbrick Utility. Regardless, the solution is still the same.

You are a GENIOUS!!!
Thanks a LOT!!!!!!!!!!

[HOW TO] Recover Kindle Fire from corrupted read/write permissions in /system (6.2.1)

Link to original thread: http://forum.xda-developers.com/showthread.php?t=1452651
This is a specific guide to restoring your Kindle Fire from boot loop caused by changes in the /system/ directory permissions.
The problem:
After rooting my Kindle Fire, I tried to install the Android Market app and while doing so, messed up my read/write permissions of /system/app/
After rebooting my Kindle, the logo animation started looping endlessly, indicating there was a serious issue taking place.
The specs:
Device: Kindle Fire
Firmware: 6.2.1
Desktop: Mac Mini
OS: OS X Lion
The tools:
You will need,
1. The KindleFireRoot Kit from here (It has tools for all OSs)
2. TWRP 2.0 from here
3. The fbmode file found here to be able to stock fastboot in 6.2.1
The steps:
1. Move all the contents from both the downloaded KindleFireRoot Kit and TWRP into a single directory for convenience.
2. Assuming you were able to root your Kindle in the first place, it's likely you already have drivers installed (Windows). Check by opening a Terminal, navigating to the dir with all the tools and doing this on Windows:
Code:
adb kill-server
adb devices
on Mac:
Code:
sudo ./adb kill-server
./adb devices
Your device should be listed. If it is skip to the next step.
If it's not, install the drivers found in the usb_driver directory (Win only). In this directory you can find the adb_usb.ini file which you need to move to the .android directory that's inside /Users/[your_name]/
3. We will now use the fbmode to fastboot to stock 6.2.1 as explained in this thread.
Code:
adb push fbmode /data/local/tmp
adb shell chmod 755 /data/local/tmp/fbmode
adb shell /data/local/tmp/fbmode
adb reboot
4. Now that we can fastboot, we will install TWRP 2.0.
Just run this command:
Code:
fastboot -i 0x1949 boot twrp-blaze-2.0.0RC0.img
...and reboot. The Kindle should boot into a screen with a yellow triangle and TRWP will install itself.
5. What you need to do now is tap the reboot button onscreen. As it reboots, hold down the Power Button until the light turns orange. You will then boot into TWRP. You will see a Menu with a bunch of Buttons.
6. Now it's time to boot up your Kindle as a USB Drive to repair the permissions.
Touch the Mount button and select the checkbox that says System. After that tap on Mount USB
All you have to do after that is type this in the Terminal and voila:
Code:
adb shell chmod 755 /systme/app
7. Reboot your device and enjoy.
Thanks to everyone who helped me figure that out in the original thread and the threads that I've linked. I might be missing a step. PM if you get stuck or just Reply on this thread.

/system/app kindle fire
Hi,
Thanks for the instructions. I got to the point where the yellow triangle shows up on my kindle fire after doing the fastboot command and touching the reboot button on the kindle screen. However, it just locks up after that and I never get to the subsequent menu. All I see is the yellow triangle on the screen with the instructions to press the power button for recovery. I have reset the power many times and all I get is the yellow fire triangle now. Any ideas how to get out of this loop? Thanks.

fastboot -i 0x1949 oem idme bootmode 5001
fastboot -i 0x1949 reboot
if you'r done you may have to reset the boot mode to normal (when you are in twrp):
adb shell idme bootmode 4000
adb reboot

Windows doesn't seem to be recognizing my device anymore. I get an unknown usb device when I plug it in. When I run the fastboot commands I get a <waiting for device> from which it never returns. I tried to reinstall my android_winusb.ini file to the kindle, but windows says it is up to date. Windows gives me this error in the device manager: " Windows has stopped this device because it has reported problems. (Code 43)" Help!

you have to update the driver manually:
http://forum.xda-developers.com/showpost.php?p=21720811&postcount=41

Thanks, that did it! I also had plugged it into another computer that recognized it as a kindle. I'm not sure if that mattered or not.

This seems to be great. Unfortunately I've got to a different thread and I think I totally bricked my Kindle. I was able to install and run TRWP. However I tried to do a recovery from Amazon Stock img. Then rebooted the kindle. After that the kindle rebooted and got stuck again. I tried to re-run TRWP but this time I got a different error message when tried to run adb shell to go into fastboot. The error message said the system shell could not be found. Adb shell is not accessible and if I do a fastboot command it says waiting for device.
If I do adb devices I can see the actual device # not anymore in recover mode but listed as device. But not able to run the adb shell. I am really frustrated!

that happend many others by trying to flash the original amazon rom
the original rom deletes fff, twrp and root
with a messed up system shell you have no possibility to get to fastboot mode
the only solution is to use a factory cable - you can build or buy one:
http://forum.xda-developers.com/showthread.php?t=1392693
the factory cable forces the kf to fastboot mode
restore with factory cable:
http://forum.xda-developers.com/showpost.php?p=21391952&postcount=38
handling:
http://forum.xda-developers.com/showpost.php?p=21708081&postcount=157
or in short:
You must insert cable, then switch off kindle by pressing button about 20sec and press once again, kindle will be in fastboot.
test with "fastboot getvar product"
After kindle will be in fastboot, with Kindle Fire Utility install TWRP recovery and with recovery install prerooted stock or CM7 firmware.

[Q] Kindle Fire 6.3 in FFF Recovery Loop, Not Detected -- Need Help [Linux]

Hey guys,
I'm sorry I couldn't figure out what to do next simply by searching your forum, so I will try to be both as brief and as descriptive as possible.
I started here (http://forum.xda-developers.com/showthread.php?t=1568340) trying to root my fiancee's KF 6.3. I didn't feel comfortable using KFU or similar because those programs are built for Windows and I am using Linux. The Kindle Fire seems to be stuck in a recovery loop. When plugged into USB (using the cable that's actually for my LG Optimus phone), it boots to FireFireFire (yellow triangle) then reboots constantly. At no point is it accessible via adb devices or fastboot, and it doesn't show up under lsusb, which would be the equivalent to not showing up in Device Manager in Windows. (The driver should be fine because all of this was working fine originally when I started the process.)
So I guess my question is what now? I've read a few things about needing a "factory cable" which may set it back into fastboot mode, and I'm pretty sure I could get going again from there. Is that what I need to do? TIA for any help.
PS - I've successfully rooted my LG Optimus S and flashed custom ROMs, so I'm not totally inexperienced. I use Arch Linux and I'm comfortable on the command line. If you have a solution for Windows, I *might* be able to translate it into Linux speak, so don't hold back. Same goes for Ubuntu/Debian - those are totally different than Arch Linux, but I might "get it" enough to translate it.
PPS - I have intentionally omitted information relating to what I was doing when I caused this for brevity, but I would be happy to discuss what steps I took in following the above linked thread if some guru believes it's relevant or someone wants to know.

A factory cable is a last resort kind of thing so I wouldn't jump the gun quite yet, although it doesn't hurt to have one in the first place.
It would be helpful to know which step in the rooting process things went awry. The constant rebooting/restarting isn't typical. Did you make sure you had enough battery before trying to root?
FIREFIREFIRE loads in a temporary fastboot and with the version you are using it lasts for about ten seconds (before the green light goes dim). You can issue fastboot commands during this time without the need of a factory cable.
See if you can get...
fastboot devices
...to be recognized during this time.
Sent from my Amazon Kindle Fire using xda premium

If you get stuck at a screen with a yellow triangle, run: fastboot -i 0x1949 oem idme bootmode 4000 If your device is always booting TWRP run: adb shell "idme bootmode 4000" If you still can't get out of booting TWRP, first run: adb shell "idme bootmode 4002" reboot your device, then run: adb shell "idme bootmode 4000" reboot again and you should be out of your bootloop.
Sent from my LG-VM670 using Tapatalk

It would be helpful to know which step in the rooting process things went awry.
Click to expand...
Click to collapse
OK, let's start with that.
From the thread I linked in the first post:
Your device will now boot into twrp recovery, and flash the firefirefire bootlaoder. When done it will prompt you to reboot. Upon reboot you will get stuck on the "yellow triangle" screen of firefire fire.
Click to expand...
Click to collapse
That was not my experience. My device loaded TWRP but just sat there on its home screen without prompting me to reboot. I used adb reboot recovery to see if it had indeed flashed FFF but was simply not prompting me to reboot, and it had not. So I used instructions from elsewhere (http://forum.xda-developers.com/showthread.php?t=1369405) to flash FFF at this point myself:
Howto flash by hand
Get into fastboot mode somehow. Having and older FFF from the TWRP installer is a good start. Currently KFU or fbmode is the easiest
flash with "fastboot -i 0x1949 flash bootloader u-boot.bin" (take out "-i 0x1949" if FFF is already installed)
disable fastboot: "fastboot -i 0x1949 oem idme bootmode 4000"
reboot: "fastboot -i 0x1949 reboot"
Click to expand...
Click to collapse
There were a couple of weird issues with this but the process seemed to go smoothly. However, when I rebooted (the last command) is when I discovered I was stuck in a recovery loop, and the last time I was able to see the device normally via adb devices/lsusb/dmesg.
I guess it may have been the battery because I've since let it fully charge (this is the first time I've looked at it in days) and now it's not in a recovery loop but stably sitting at the "yellow triangle". There is also now an entry for it in lsusb:
Code:
Bus 002 Device 008: ID 18d1:0100 Google Inc.
fastboot devices gives me something like "no permissions fastboot" but I have no idea what that means because I've never seen its normal output.
EDIT: I should note that I do notice the device ID now seems to register as 0x18d1 rather than 0x1949, but I'm not entirely sure what to do about that. I copied my udev rules but changed '1949' to '18d1' and 'Lab126' to 'Google Inc' but I don't even know if that was a sensible move because I've never really done much with udev rules.

pbailey212 said:
If you get stuck at a screen with a yellow triangle, run: fastboot -i 0x1949 oem idme bootmode 4000 If your device is always booting TWRP run: adb shell "idme bootmode 4000" If you still can't get out of booting TWRP, first run: adb shell "idme bootmode 4002" reboot your device, then run: adb shell "idme bootmode 4000" reboot again and you should be out of your bootloop.
Sent from my LG-VM670 using Tapatalk
Click to expand...
Click to collapse
I think the problem here is the he can't get past the bootloader and stuck in an ACTUAL bootloop. In which case, adb commands are useless.
One thing that could be causing problems is the USB cable being used. If the device only experiences these symptoms when plugged in then I would say that's most likely the case.
Sent from my Amazon Kindle Fire using xda premium

I suggest you build a firekit USB for Linux. Search for firekit for Linux thread in the development section.
Sent from my Amazon Kindle Fire using Tapatalk 2

palintropos said:
OK, let's start with that.
From the thread I linked in the first post:
That was not my experience. My device loaded TWRP but just sat there on its home screen without prompting me to reboot. I used adb reboot recovery to see if it had indeed flashed FFF but was simply not prompting me to reboot, and it had not. So I used instructions from elsewhere (http://forum.xda-developers.com/showthread.php?t=1369405) to flash FFF at this point myself:
There were a couple of weird issues with this but the process seemed to go smoothly. However, when I rebooted (the last command) is when I discovered I was stuck in a recovery loop, and the last time I was able to see the device normally via adb devices/lsusb/dmesg.
I guess it may have been the battery because I've since let it fully charge (this is the first time I've looked at it in days) and now it's not in a recovery loop but stably sitting at the "yellow triangle". There is also now an entry for it in lsusb:
Code:
Bus 002 Device 008: ID 18d1:0100 Google Inc.
fastboot devices gives me something like "no permissions fastboot" but I have no idea what that means because I've never seen its normal output.
EDIT: I should note that I do notice the device ID now seems to register as 0x18d1 rather than 0x1949, but I'm not entirely sure what to do about that. I copied my udev rules but changed '1949' to '18d1' and 'Lab126' to 'Google Inc' but I don't even know if that was a sensible move because I've never really done much with udev rules.
Click to expand...
Click to collapse
Make sure your linux environment is set up correctly.
http://forum.xda-developers.com/showthread.php?t=1475740
Installing TWRP 2.0.0 is different than installing TWRP 2.1.0. I think the instructions on the TWRP site is for the old version, but they link the new one.
http://forum.xda-developers.com/showpost.php?p=24732291&postcount=1298
Your OP sounds suspiciously like a dead battery, but you say you've corrected that. You might want to connect to your OEM charger for a while anyway and see if that helps
Also, in my experience, fastboot on linux required elevated privileges. Try running it as root.

Make sure your linux environment is set up correctly.
http://forum.xda-developers.com/show....php?t=1475740
Click to expand...
Click to collapse
I've done the Arch Linux equivalents of all of that, and I'm set up with udev rules per our wiki here: https://wiki.archlinux.org/index.php/Android#Adding_udev_Rules
I'm pretty sure the USB cable I'm using might actually be the issue because it was fine straight off the OEM charger, and I even momentarily got a correct reading with fastboot devices (as root), but now I'm back to almost like earlier. The yellow triangle screen is still "stuck"/stable, but I can't find it on adb/fastboot devices or lsusb.

palintropos said:
EDIT: I should note that I do notice the device ID now seems to register as 0x18d1 rather than 0x1949, but I'm not entirely sure what to do about that. I copied my udev rules but changed '1949' to '18d1' and 'Lab126' to 'Google Inc' but I don't even know if that was a sensible move because I've never really done much with udev rules.
Click to expand...
Click to collapse
This is fine. It just indicates you are running the FFF bootloader... pokey9000 changed the VID to a value fastboot recognizes by default instead of the custom vendor ID (1949) that Amazon uses in the stock bootloader. With the FFF bootloader, you can drop the "-i 0x1949" part of the fastboot command.
---------- Post added at 12:30 PM ---------- Previous post was at 12:27 PM ----------
palintropos said:
I've done the Arch Linux equivalents of all of that, and I'm set up with udev rules per our wiki here: https://wiki.archlinux.org/index.php/Android#Adding_udev_Rules
I'm pretty sure the USB cable I'm using might actually be the issue because it was fine straight off the OEM charger, and I even momentarily got a correct reading with fastboot devices (as root), but now I'm back to almost like earlier. The yellow triangle screen is still "stuck"/stable, but I can't find it on adb/fastboot devices or lsusb.
Click to expand...
Click to collapse
Have you tried setting the bootmode to normal and rebooting?
fastboot oem idme bootmode 4000
fastboot reboot
Like I said before, it would probably be best for you to try this as root.
EDIT: It's also possible your system is broken and the KF can't complete its boot process. When you start up the device, the boot logo will first come up. Does the display go black after that and come back with a dimmer yellow triangle logo? Because if it's doing that, it's not in fastboot any more.

kinfauns said:
This is fine. It just indicates you are running the FFF bootloader... pokey9000 changed the VID to a value fastboot recognizes by default instead of the custom vendor ID (1949) that Amazon uses in the stock bootloader. With the FFF bootloader, you can drop the "-i 0x1949" part of the fastboot command.
Click to expand...
Click to collapse
Ditto. If you can get the device to be recognized even for a second, it's still enough time to issue...
fastboot -i 0x1949 oem idme bootmode 4000
Just keep trying
[Edit:] or what he said
Sent from my Amazon Kindle Fire using xda premium

Yay! I played around and got my udev rules working, and I got a reading on (sudo) fastboot devices, so I was finally able to set the bootmode to 4000 and reboot. Everything seems to be back to normal now. The Kindle appears to be working fine though not rooted.
Please let me know:
if there is anything else I should know to make sure the KF is normal
if there is any additional info I should post to benefit other users who might have this same problem
or if I should mark this thread SOLVED/RESOLVED or equivalent and how to do so.

if your fastboot ever stucks in waiting for device mode and you are on linux
try once with either root user or using sudo command.
thats one of the thing people forget most of the time and get stuck there.

http://forum.xda-developers.com/showthread.php?t=1576675

Try the above with the kindle switched off you should see waiting for devic, then press power once ( fast boot should kick in when you power on)
Sent from my Amazon Kindle Fire using xda premium