Develop Bugs

[Q] Kindle Fire stuck in reboot loop... help?

I recently rooted my kindle fire using KFU .9, at which point the kindle rebooted, but it was stuck on the yellow-fire-triangle screen. Via the KFU, I changed the boot mode to fast reboot, and now the kindle just reboots over and over whenever it's attached to the computer. This happens so fast, the computer cannot recognize it so I cannot seem to fix the problem.
Please help!

Try booting into TWRP... the computer should recognize it then.. if the computer does not then uninstall your device drivers in computer management and reinstall them... KFU should recognise your fire then... tell your kindle to reboot in normal mode using KFU.. this worked for me. Hope it helps you.

fiddlefaddle said:
Try booting into TWRP... the computer should recognize it then.. if the computer does not then uninstall your device drivers in computer management and reinstall them... KFU should recognise your fire then... tell your kindle to reboot in normal mode using KFU.. this worked for me. Hope it helps you.
Click to expand...
Click to collapse
The kindle isn't connected to the computer long enough for it to be recognized, so I can't update the drivers. Also, I can't boot into TWRP because the device is constantly turning on and shutting off.
Any other ideas would be greatly appreciated.
*NOTE*
while the kindle is constantly restarting, I am sometimes able to get the power button to turn from green to orange, as if it were going to boot to TWRP, but then the cycle continues. I don't know if this is helpful.

Connect your kindle and use install_drivers.bat to make sure your drivers are updated. You won't be able to see your kindle in device manager most likely when it's stuck in fastboot. Next, Start up KFU and go to bootmode and select normal. When KFU is waiting for your device perform a hard reset (hold power for 30 seconds). This should kick your kindle into normal bootmode. This method worked for me when I was stuck in a fastboot loop trying to install TWRP the first time so hopefully it helps you

BluesHawk said:
Connect your kindle and use install_drivers.bat to make sure your drivers are updated. You won't be able to see your kindle in device manager most likely when it's stuck in fastboot. Next, Start up KFU and go to bootmode and select normal. When KFU is waiting for your device perform a hard reset (hold power for 30 seconds). This should kick your kindle into normal bootmode. This method worked for me when I was stuck in a fastboot loop trying to install TWRP the first time so hopefully it helps you
Click to expand...
Click to collapse
When I try to install the drivers, the install wizard says I have the most up-to-date drivers, but windows said the drivers couldn't be installed because the device was unplugged.
I tried to use KFU anyway and hold the power button for 30 seconds, but the device kept booting in the mean time and KFU was unable to find the device.

MasterJoefus said:
When I try to install the drivers, the install wizard says I have the most up-to-date drivers, but windows said the drivers couldn't be installed because the device was unplugged.
I tried to use KFU anyway and hold the power button for 30 seconds, but the device kept booting in the mean time and KFU was unable to find the device.
Click to expand...
Click to collapse
When you install the driver, pick the driver located in the KFU folder under drivers>kindle

when it is booting every 3-5 sec then it is most likely that the battery is down
charge with the wall charger for some hours
about kfu & drivers:
http://forum.xda-developers.com/showpost.php?p=22481426&postcount=11
hope this helps ...

b63 said:
when it is booting every 3-5 sec then it is most likely that the battery is down
charge with the wall charger for some hours
about kfu & drivers:
http://forum.xda-developers.com/showpost.php?p=22481426&postcount=11
hope this helps ...
Click to expand...
Click to collapse
I have had the kindle plugged into the wall for a few hours, but when it's connected to the wall charger, it continues to constantly reboot. I suppose I can let it charge for a few hours and see if that helps

the kf tries to power on if you plug it in. would plug to the wall charger and press pwr for ~20 sec till it turns off to allow the kf to charge

Thanks for your help, guys. All is well now

glad to help ...
please mark the subject of the topic (edit first post) with [Solved]

Glad to hear it!

Hi man. I am facing the exact problem. Could you please tell me how you got it working? Thanks.

hi, a friend of my is having the same problem with his kindle fire, can u plz tell us what you did

KF stuck at Kindle Fire white/blue logo; tried a few ways including Linux

Hi All.
I’ve rooted my Kindle device successfully before (during v6.2 – have the driver installed from this and cable worked successfully )
Now with the 6.3.1, I used the KFU v0.9.6 to do it – option 2 ‘Install Permanent Root with Superuser’
Followed the instructions as per http://forum.xda-developers.com/showthread.php?t=1399889
- On my XP machine, it detected my Kindle initially but it stopped and my Kindle Fire was showing the stock welcome screen but kept on rebooting.
- Then I tried on a Win 7 machine and ran option 2 again – it did something and now my Kindle is stuck on the FFF screen (Kindle Fire logo in blue and white – v1.4a).
- Now when I run ‘ran.bat’, pc it shows ‘waiting for device’
- The FFF screen was blinking initially but now it’s permanently on.
- I can off my Kindle by pressing the on button for about 20 seconds and when I connect my Kindle in the off state to the pc, it turns on and remain on the FFF screen
1. Installing the driver
So I figured the above is due to the driver.
- However, the Kindle is not appearing in the Device Manager with a yellow ! – hence can’t manually install the drivers.
- Tried install_drivers.bat – it says ‘Google, Inc. (WinUSB)…..Install failed (Unsigned)’
​- I ensured that the ‘Driver Signing Options’ is set to ‘Ignore – Install the software and don’t ask for my approval’ and ‘Make this action the system default’.
- So next, I tried to force my XP to install the drivers (Kindle unplugged), by using ‘Add Hardware’ and installing drivers from c:\kfu\drivers –
​- Installed all 3 drivers – Android ADB Interface, Android Bootloader Interface & Android Composite ADB Interface.
​- Received this message at the end – ‘The software for this device is now installed, but may not work correctly. The device cannot start. (Code 10)’
​- But when I plugged in my Kindle and run KFU it still says ‘waiting for device’.
I tried the above steps with:-
- 3 XP machines and 1 Win 7, and
- on different USB ports (tried both USB 2.0 and 3.0)
- and tried using 4 different usb cables
- Same results ‘waiting for device’
- One exception though – for the Win 7 machine – when I ‘install_drivers.bat’, it says ‘Google, Inc. (WinUSB) ….Ready to use’ – but still shows ‘waiting for device’, when running KFU.
2. Delete old drivers
Followed this (http://forum.xda-developers.com/showthread.php?t=1459116) to uninstall the drivers (including the Microsoft support page).
- But XP and Win 7 still did not detect the Kindle in ‘Device Manager’
- Tried to force install the 3 drivers again and still ‘waiting for device’
Additionally tried to download the Google Usb driver from Android SDK - same issue - no yellow !
And tried to connect via 'c:\KindleAdb\adb devices' (learned from the previous root exercise) - no devices appears.
3. Kindle Fire Unbrick Utility
Tried this next - http://forum.xda-developers.com/showthread.php?t=1428428
Tried the many options available. When it is executed, its says ‘error’, despite saying Kindle unbricked at the end.
4. Firekit LiveUSB repair kit 1.1
Finally decided to use the Linux method (http://forum.xda-developers.com/showthread.php?t=1430038)
- Created a USB Ubuntu and ran the program but suprisingly still the same problem – stuck at ‘waiting for device’ (see snapshot attached).
So I’m a bit confused right now. From the above it seems to me that the Kindle is not talking to the PC.
- But if in Linux, it doesn’t work (which from what I read doesn’t require a driver?) then it could possibly be my cable.
- But the cable did work when I rooted in 6.2 and it also worked initially when I used KFU. And also, I tried with 4 different cables.
​- Am not sure if the cables are ‘factory cable’ – but it did work initially.
I’m stuck here. Any help/advice would be deeply appreciated. Thank you.

A few things that might help you...
1) If you have FFF 1.4a, you can access its boot menu and have the device boot normally or into recovery. As it boots up, look at the power button LED and watch as it goes from a bright green to a dim green. As soon as it goes dim, press and release the button to bring up the menu on the screen. You can then flip through the menu options by repeatedly pressing and releasing the power button. Leave it alone for a few seconds and it will continue to boot using the selected option.
2) If you don't know whether or not you have a factory cable, you probably don't have one...
http://forum.xda-developers.com/showthread.php?t=1550999
3) For the computer to issue fastboot commands to the device, it must already be connected to the computer before booting into fastboot mode. That is... you cannot boot the KF into fastboot mode and then connect it to the computer. If the computer is <waiting for device>, try turning the KF off by pressing and holding the power button for around 20 seconds to shut it down completely, then turning it back on again. For more information on fastboot....
http://forum.xda-developers.com/showthread.php?t=1668159
If the above suggestions don't work for you, make sure you are getting the expected hardware IDs shown in the previous link.

Thank you kinfauns for your immediately reply.
kinfauns said:
A few things that might help you...
1) If you have FFF 1.4a, you can access its boot menu and have the device boot normally or into recovery. As it boots up, look at the power button LED and watch as it goes from a bright green to a dim green. As soon as it goes dim, press and release the button to bring up the menu on the screen. You can then flip through the menu options by repeatedly pressing and releasing the power button. Leave it alone for a few seconds and it will continue to boot using the selected option.
Click to expand...
Click to collapse
Unfortunately this doesn't happen on my KF. The power button is bright green. And the bootlogo is persistent and remain bright on the display.
I've tried repeatedly pressing and releasing the power button but didn't work.
2) If you don't know whether or not you have a factory cable, you probably don't have one...
http://forum.xda-developers.com/showthread.php?t=1550999
Click to expand...
Click to collapse
Just bought a USB factory fastboot mode cable online .
3) For the computer to issue fastboot commands to the device, it must already be connected to the computer before booting into fastboot mode. That is... you cannot boot the KF into fastboot mode and then connect it to the computer. If the computer is <waiting for device>, try turning the KF off by pressing and holding the power button for around 20 seconds to shut it down completely, then turning it back on again. For more information on fastboot....
http://forum.xda-developers.com/showthread.php?t=1668159
Click to expand...
Click to collapse
I tried this method but nothing changes - when I turn it back on, it goes back to the bootlogo. KFU still says <waiting for device>.
Also tried 'Temporary fastboot mode' - 'fastboot getvar product' - still <waiting for device>.
If the above suggestions don't work for you, make sure you are getting the expected hardware IDs shown in the previous link.
Click to expand...
Click to collapse
My KF doesn't show up on 'Device Manager' - no yellow question mark or whatsoever.
When I manually installed 'Android ADB Interface' - it shows an yellow ! and even after I connect the KF it still shows the yellow !.
Current hardware ID (for 'Android ADB Interface' with yellow !): usb\vid_0bb4&pid_0c01
Device status: This device cannot start. (Code 10)
So I guess, I will wait for my factory cable, unless you have any other suggestions? Thank you.

ivanovicch said:
My KF doesn't show up on 'Device Manager' - no yellow question mark or whatsoever.
When I manually installed 'Android ADB Interface' - it shows an yellow ! and even after I connect the KF it still shows the yellow !.
Current hardware ID (for 'Android ADB Interface' with yellow !): usb\vid_0bb4&pid_0c01
Device status: This device cannot start. (Code 10)
So I guess, I will wait for my factory cable, unless you have any other suggestions? Thank you.
Click to expand...
Click to collapse
I have no idea what that ID number is, but it's definitely not the one you should see for fastboot. That means you have those drivers installed on the wrong interface. I also suspect your bootloader might be corrupt or otherwise not functioning correctly. Using the factory cable will give you a better idea what's going on since you can (almost) be certain that the device has put itself into fastboot mode. Then you can focus on getting the drivers installed properly for the interface that appears in the device manager. As a last resort, you might have to open up the case and use USB boot (in Firekit) to flash a new bootloader.

Just quickly skimmed over your thread but have you tried holding down the power button for a minute or so and then powering it on? I would tend to agree with kinfauns that somehow your bootloader is broken if so a factory cable will do nothing only firekit will remedy a broken bootloader that's why I ask about the long press power off attempt...

Thepooch said:
Just quickly skimmed over your thread but have you tried holding down the power button for a minute or so and then powering it on? I would tend to agree with kinfauns that somehow your bootloader is broken if so a factory cable will do nothing only firekit will remedy a broken bootloader that's why I ask about the long press power off attempt...
Click to expand...
Click to collapse
I pressed power button for more than a minute - tried 2 ways:-
- with the KF on - it switches off and remains switched off.
- with the KF off - it switches on for a bit and then switches off and remains switched off.
I'll just give the factory cable a try when it arrives - will update here again. Hopefully I don't have to open up the case.
Thanks kinfauns and Thepooch.

I have no idea what that ID number is, but it's definitely not the one you should see for fastboot. That means you have those drivers installed on the wrong interface. I also suspect your bootloader might be corrupt or otherwise not functioning correctly. Using the factory cable will give you a better idea what's going on since you can (almost) be certain that the device has put itself into fastboot mode. Then you can focus on getting the drivers installed properly for the interface that appears in the device manager. As a last resort, you might have to open up the case and use USB boot (in Firekit) to flash a new bootloader.
Click to expand...
Click to collapse
Just quickly skimmed over your thread but have you tried holding down the power button for a minute or so and then powering it on? I would tend to agree with kinfauns that somehow your bootloader is broken if so a factory cable will do nothing only firekit will remedy a broken bootloader that's why I ask about the long press power off attempt...
Click to expand...
Click to collapse
Just to update - the factory cable didn't do the trick. KF still stuck at KF blue/white logo - the bootloader must be corrupted.
Hence am going to try opening the case and flash a new bootloader. Wish me luck - will update again soon. Thanks.

Please help me My Kindle is stuck at black screen after Kindle Fire logo. I have Android Composite ADB Interface driver installed, but when I plugged my Kindle Fire to my PC, it detected as a USB Mass Storage, and won't connect as an Android device so I couldn't do anything with adb commands or KFU...
See it in my topic for more information: http://forum.xda-developers.com/showthread.php?p=30542544#post30542544

ivanovicch said:
Just to update - the factory cable didn't do the trick. KF still stuck at KF blue/white logo - the bootloader must be corrupted.
Hence am going to try opening the case and flash a new bootloader. Wish me luck - will update again soon. Thanks.
Click to expand...
Click to collapse
Dear All. My KF is ALIVE! Had to open my back case and do the short point trick - http://forum.xda-developers.com/showthread.php?t=1405052.
Worked like a charm.
Thanks pokey9000, kinfauns and mainly the Thepooch - thank you for guiding me through this.

your welcome I`m quite pleased its fixed myself

same issue not unable to solve
i have exact same issue but i am having a problem to fix it. i wonder if anyone can help me here. i am trying to short the test point but in device manager its shoing usb not recognized again and again. please guide me whats wrong i am doing. using windows 7 (64bit)

I have kfhd7 (tate) and i updated it from cm12.1 to cm13 but after the reboot it is now stuck on white-blue "kindle fire" logo. everytime i reboot it shows the white-yellow logo and then gets stuck on the blue one. moreover, i cant get to twrp3 using keys as it gets stuck and device gets hot. Tried fastboot and adb but the devices is shown offline. I dont have access to a fastboot cable and even dont hope that i will get one shipped sooner. kinldy help

hasanalikhattak said:
I have kfhd7 (tate) and i updated it from cm12.1 to cm13 but after the reboot it is now stuck on white-blue "kindle fire" logo. everytime i reboot it shows the white-yellow logo and then gets stuck on the blue one. moreover, i cant get to twrp3 using keys as it gets stuck and device gets hot. Tried fastboot and adb but the devices is shown offline. I dont have access to a fastboot cable and even dont hope that i will get one shipped sooner. kinldy help
Click to expand...
Click to collapse
this is only for kindle fire 1 (2011)
there is a separate section for device see
Fire Index: Which Amazon (Kindle) Fire Do I have?
for correct forum link
Sent from my XT1254 using XDA Labs

[Q] Kindle fiire rooting fail

SO recently i tried to root my kindle using one of the guides unfortunately i somehow messed up during it or something, but the problem i have now is whenever i turn my kindle on it has the yellow triangle with a fire logo in it and at the bottom it says "press power button for recovery". Simple enough only the second problem is i do not have TWRP or anything like that so pressing the power button literally does nothing. Unfortunately as well when i plug it into the USB it will identify that something is connected but it won't install it to the pc because it cant find some hardware or something. So i cant get it to start up or connect it to the pc and am desperately looking for a solution. Thanks to anyone who can help.

First off. Do you have a first gen kindle fire?
6.3.x or 10.x.x?
If you have a first gen,
Download this.
http://forum.xda-developers.com/showthread.php?t=2192818
Choose bootmode menu, and choose fastboot.
Hold down the power button for 10-20 seconds till it turns off.
Connect your kindle to your computer.
Does KFU find the device? If so, good. You will be taken to the main screen at that point I think.
Choose to install recovery (TWRP).
That should be it. Post here if there's any problems.
Sent from my muffin-ated Kindle Fire with Tapatalk HD.
Just because I am a Senior Member doesn't mean anything.
I do not count myself any higher than anybody else.

jma9454 said:
First off. Do you have a first gen kindle fire?
6.3.x or 10.x.x?
If you have a first gen,
Download this.
http://forum.xda-developers.com/showthread.php?t=2192818
Choose bootmode menu, and choose fastboot.
Hold down the power button for 10-20 seconds till it turns off.
Connect your kindle to your computer.
Does KFU find the device? If so, good. You will be taken to the main screen at that point I think.
Choose to install recovery (TWRP).
That should be it. Post here if there's any problems.
Sent from my muffin-ated Kindle Fire with Tapatalk HD.
Just because I am a Senior Member doesn't mean anything.
I do not count myself any higher than anybody else.
Click to expand...
Click to collapse
Attached is a picture of what my kindle screen looks like. I tried resetting it, plugging it into the computer, etc. but this screen never changes. Also on my pc it doesn't recognize it as a kindle, it recognizes it as an unknown device. So I can't put any files onto my kindle at the moment because my PC keeps telling my me driver is not working or something. I attached files showing what my pc says as well. Also I apologize for the bad quality of the pictures i don't own a very nice camera at all so I apologize in advanced for that. The last 3 are readable the 1st one is basically just a yellow triangle with a fire symbol in the middle and it says "press power button for recovery" but nothing happens when i press the power button, and the 2 photo is a little bit blurry but all it says is:
Unknown Device
Device Type: Universal Serial Bus controllers
Manufacturers: (Standard USB Host Controller)
Location: Port_#0009.Hub_#0002
Device Status:
Windows has stopped this device because it has reported problems. (Code 43)

The "press power button for recovery" can be confusing if you don't know what's going on. That version of FireFireFire sits in fastboot mode for...I think...8 seconds before it will recognize the power button. You can repeatedly press the power button until the LED turns orange to see if that gets you into recovery. If not, you're probably looking at something like usbboot to replace your bootloader. You need to replace your bootloader anyway, but hopefully you'll be able to flash a new one in recovery instead.

soupmagnet said:
The "press power button for recovery" can be confusing if you don't know what's going on. That version of FireFireFire sits in fastboot mode for...I think...8 seconds before it will recognize the power button. You can repeatedly press the power button until the LED turns orange to see if that gets you into recovery. If not, you're probably looking at something like usbboot to replace your bootloader. You need to replace your bootloader anyway, but hopefully you'll be able to flash a new one in recovery instead.
Click to expand...
Click to collapse
Repeatedly pressed the power button for about 30 seconds with the same result, green light still, and no screen change. So it looks like its this usbboot, how would i go about doing this in order to replace my bootloader?

KindleFail said:
Repeatedly pressed the power button for about 30 seconds with the same result, green light still, and no screen change. So it looks like its this usbboot, how would i go about doing this in order to replace my bootloader?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1405052
http://forum.xda-developers.com/showthread.php?t=1430038&highlight=firekit
Since you will need Linux anyway, you might as well download and install SoupKit. It comes with Firekit and will probably make your life easier in the long run.

What guide did you use exactly? I can see if we can update that guide to use the latest FFF because that is a very old alpha version that has had many issues with the yellow triangle in the past. I'm surprised its still floating around here.
Sent from my One V using xda app-developers app

Stuck at boot logo
Hey all,
I'm not sure if this is the correct place to post but I didn't want to make a new topic and this seems to be in the area of what is wrong with my kindle... I tried the new KFU v0.9.9 on my first gen KF running 6.3.2. I have rooted it before (not on 6.3.2), but unrooted and restored to factory settings because I thought I was going to sell it. However, the plans fell through and I am keeping it so I wanted to re-root and all that jazz....
My question is, how do I get it boot past the boot logo? I used the KFU, but firstly when it prompts it says:
'findstr' is not recognized as an internal or external command, operable program or batch file.
So none of the commands pop up, however they are still there... For example, i followed:
"Choose bootmode menu, and choose fastboot.
Hold down the power button for 10-20 seconds till it turns off.
Connect your kindle to your computer."
And I can get to fastboot, but it says there is no device connected to my computer. If you need more details on the problem I'll be glad to give them to you. Hopefully someone checks this thread again
Thanks

What version of Windows do you have that doesn't have 'findstr'?
What do you see in your device manager while the device is plugged in?

soupmagnet said:
What version of Windows do you have that doesn't have 'findstr'?
What do you see in your device manager while the device is plugged in?
Click to expand...
Click to collapse
I'm running a 64 bit version of Windows 7 professional.
There's nothing in the device manager when I plug it in.

[Q] Kindle Fire Static Logo Fastboot Stuck

I can get around in both windows and linux. I have rooted, flashed and modded a smartphone before (Samsung Galaxy Express) successfully.
This should be an easy one for some of you to diagnose. A fresh stock Kindle Fire (6.3.2). Trying to install KFU v0.9.6 from a Win7 (also have various flavors of linux, ubuntu, arch, debian, etc available to use if need be). ran install_drivers.bat without any problems, device showed up and was recognized. Ran run.bat. put it in fastboot mode. Kindle Fire rebooted into the "Kindle Fire" White/Orange static logo and is stuck. No animation, no powerbutton response, can't turn it off, unknown device in Win7, adb and fastboot commands return no devices.
From reading the many beginner guides and unbricking posts, I was lead to believe that I needed to put this unit in fastbootmode to do any custom work with the device, and seeing that it's #1 on the menu list of the KFU I thought this was a pre-requisite before installing anything else. Apparently this is not the case. The device comes up as a USB Unknown Device (Code 43) now, and KFU can not find the device and is waiting for the device. Can't do anything. The only clue I was able to read was possibly letting the power drain. It was full charged so I will have to wait for a while. In the meantime, I figured I would hit up the forum to see if anyone has a better suggestion.
How do I get my Kindle Fire out of FastBoot Mode?

I am right there too...
BlushNine said:
I can get around in both windows and linux. I have rooted, flashed and modded a smartphone before (Samsung Galaxy Express) successfully.
This should be an easy one for some of you to diagnose. A fresh stock Kindle Fire (6.3.2). Trying to install KFU v0.9.6 from a Win7 (also have various flavors of linux, ubuntu, arch, debian, etc available to use if need be). ran install_drivers.bat without any problems, device showed up and was recognized. Ran run.bat. put it in fastboot mode. Kindle Fire rebooted into the "Kindle Fire" White/Orange static logo and is stuck. No animation, no powerbutton response, can't turn it off, unknown device in Win7, adb and fastboot commands return no devices.
From reading the many beginner guides and unbricking posts, I was lead to believe that I needed to put this unit in fastbootmode to do any custom work with the device, and seeing that it's #1 on the menu list of the KFU I thought this was a pre-requisite before installing anything else. Apparently this is not the case. The device comes up as a USB Unknown Device (Code 43) now, and KFU can not find the device and is waiting for the device. Can't do anything. The only clue I was able to read was possibly letting the power drain. It was full charged so I will have to wait for a while. In the meantime, I figured I would hit up the forum to see if anyone has a better suggestion.
How do I get my Kindle Fire out of FastBoot Mode?
Click to expand...
Click to collapse
I am right there too...
I ordered a Factory Cable and it should be in any day now. . . .
That is what I am doing and crossing my fingers . . .

serendipityguy said:
I am right there too...
I ordered a Factory Cable and it should be in any day now. . . .
That is what I am doing and crossing my fingers . . .
Click to expand...
Click to collapse
For anyone who has run into the same problem, this is how I fixed my problem
[1] Power off the Kindle Fire and unplug. Hold down the power button for more than 10seconds. There seems to be some variance with how long you have to hold the button down.
[2] Use the Kindle Fire Utility "run.bat" in Windows. Without the Kindle Fire device plugged in, the ADB Status will be Offline and Boot Status unknown, obviously. Go into boot menu [1] and select Normal Boot [1]. It will tell you <waiting for device>.
[3] Plug in Kindle Fire device.
[4] It should reset the Kindle Fire to normal working status.
PS. I tried the power drain, but it as soon as I supplied power back to the unit it resumed its stuck boot loop condition, so nothing changed. The reason it took so long to figure out this problem was (a) I didn't know you had to hold down the power button so long. 3-5 seconds is typical for most devices to perform a hard shutdown. (b) You have to set the Kindle Fire Utility waiting to catch the Kindle Fire device booting, if it's stuck in this condition. You can't just plug it in and run the KFU while its stuck on that screen.
Also, DO NOT SELECT [1] and FastBoot Mode on a fresh stock unmodified Kindle Fire. The other install menu selections in KFU will automatically Fastboot in order to perform what they need to do.
Hope this helps others.

[Q] Kindle fire HD 8.9 will not boot, can not see in my computer

I can not get my wife's fire HD 8.9 to boot. When I turn it on the Kindle Fire screen appears for about 5 seconds, then the Kindle Fire goes out, but the screen is still backlit.
This device is completely stock with no modifications. It did this when I turned it on one day, no previous problems.
I tried holding the power button down for up to 2 min. After I hold the button for 10 seconds the backlight goes out and the kindle is completely off. I tried letting the battery go completely dead, then charging it for several hours with no change. I tried running fastboot, but it is stuck at <waiting for device>. My computer does not see it at all. I do hear the chime that something was plugged into the computer immediately followed by the chime that it was disconnected, but nothing shows up in my computer at all.
Is there any hope for this Kindle, or is it bricked for good?

So I assume you're on windows. That beeb you hear is the fastboot mode you need to load drivers really quickly during that beeb. At that point fastboot shoukd work and you can issue a command to get into the factory restore.

I got it working again.
The problem was simple, I did not have any drivers installed on my computer for the kindle (I have never plugged it into this computer before it would not boot). I found the drivers to download here: http://forum.xda-developers.com/showthread.php?t=1890413
I was then able to get it into fastboot and recover it with instructions from this thread: http://forum.xda-developers.com/showthread.php?t=2011126