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After flashing firefirefire and twrp 2.1 to a friend's Kindle Fire, the kindle is totally unresponsive. (Yes, I believe I flashed the bootloader incorrectly. I probably flashed the actual .zip rather than a binary.)
Anyways, now:
- The power button never lights, no matter what I do. A/C plugged in, USB plugged in, after holding power button for minutes, after battery disconnected and USB connected, nothing.
- When plugged in to the USB port (Linux running), no messages appear in the syslog that indicate it even recognizes that a device has been connected
- usbboot (with the shorting trick) did not help
- disconnecting battery, then trying usbboot (with the shorting trick) does not help
For what it's worth: I actually accidentally performed the shorting trick on the wrong Kindle (mine) and effectively made it not boot. I WAS able to fix mine using the usbboot (with the shorting trick) and get it back booting. So, I know how this works. One difference I note, when I plugged in my Kindle, and tried the usbboot trick, it did not work (stuck on waiting for OMAP44xx device forever). But when I unplugged the battery, and plugged in the usb cable, at least Linux logged that the USB device was connected, and the power button flashed green, on and off. This other one does absolutely zero - nothing.
It's almost like the USB jack on this Fire is completely hosed. How could flashing the bootloader and recovery do this?
After extensive research, I'm beginning to feel like I'm out of options. The factory usb cable is the only thing I have not tried.
Thanks.
This is the thread I have been following to try to recover. It worked for mine, but not for my friends.
http://forum.xda-developers.com/showthread.php?t=1636883
Update: if you want to know what i did:
sudo ./fastboot -i 0x1949 flash bootloader ~/Downloads/Kindle/u-boot-firefirefire-1.2.zip
(Yeah, I know, just wasn't thinking.)
Update:
I just, on whim, with the battery unplugged, tried the usbboot short trick again, and it worked!
I think I'm back in business.
Update:
After several successful attempts at communication with the device, I was able to get the bootloader overwritten and twrp installed. I had to customize the "usb_fix_parts_and_install_fff_twrp" script to get it to go through. It kept coming back to 'waiting for device'. Maybe I didn't wait long enough. It seemed stuck. Here is my customized script. (I removed the oem format and xloader).
#!/bin/bash
FKDIR=$(pwd)
echo "Loading FFF through USB..."
./usbboot $FKDIR/aboot.bin $FKDIR/u-boot.bin
#echo "Fixing partitions..."
#./fastboot oem format
#echo "Installing x-loader..."
#./fastboot flash xloader $FKDIR/mmcblk0p1
echo "Flash FFF..."
./fastboot flash bootloader $FKDIR/u-boot.bin
echo "Flash TWRP..."
./fastboot flash recovery $FKDIR/twrp2-blaze.img
echo "Resetting bootmode to standard boot..."
./fastboot oem idme bootmode 4000
echo "Loading TWRP..."
./fastboot boot $FKDIR/twrp2-blaze.img
Note: I was running this from my personal Linux (non VM linux system) as root. I just extracted firekit into my download dir and called the commands manually, since I didn't want to bother with a USB stick (since I run linux).
kcburge said:
After flashing firefirefire and twrp 2.1 to a friend's Kindle Fire, the kindle is totally unresponsive.
- The power button never lights
- When plugged in to the USB port (Linux running), not message appear in the syslog that it even recognizes that a device has been connected
- usbboot (with the shorting trick) did not help
- disconnecting battery, then trying usbboot (with the shorting trick) does not help
For what it's worth: I actually accidentally performed the shorting trick on the wrong Kindle (mine) and effectively made it not boot. I WAS able to fix mine using the usbboot (with the shorting trick) and get it back booting. So, I know how this works. One difference I note, when I plugged in my Kindle, and tried the usbboot trick, it did not work. But when I unplugged the batter, and plugged in the usb cable, at least Linux logged that the USB device was connected, and the power button flashed green, on and off. This other one does absolutely zero - nothing.
It's almost like the USB jack on this Fire is completely hosed. How could flashing the bootloader and recovery do this?
After extensive research, I'm beginning to feel like I'm out of options. The factory usb cable is the only thing I have not tried.
Thanks.
Click to expand...
Click to collapse
Unfortunately a factory cable won't help, so save your money. This is caused by a bad bootloader flash. Usually from flashing a corrupt file or a .zip instead of a .bin
If you're using a VM, instead of straight Linux or LiveUSB, that could cause problems as well as the Linux version you are using. It's possible you were able to get yours to work with your current setup because the bootloader was still intact on your device.
Only you would know for sure but it's possible if the battery was low enough then it might have died while installing the bootloader, which would be the only reason you should get a factory cable.
Update:
After several successful attempts at communication with the device, I was able to get the bootloader overwritten and twrp installed. I had to customize the "usb_fix_parts_and_install_fff_twrp" script to get it to go through. It kept coming back to 'waiting for device'. Maybe I didn't wait long enough. It seemed stuck. Here is my customized script. (I removed the oem format and xloader).
#!/bin/bash
FKDIR=$(pwd)
echo "Loading FFF through USB..."
./usbboot $FKDIR/aboot.bin $FKDIR/u-boot.bin
#echo "Fixing partitions..."
#./fastboot oem format
#echo "Installing x-loader..."
#./fastboot flash xloader $FKDIR/mmcblk0p1
echo "Flash FFF..."
./fastboot flash bootloader $FKDIR/u-boot.bin
echo "Flash TWRP..."
./fastboot flash recovery $FKDIR/twrp2-blaze.img
echo "Resetting bootmode to standard boot..."
./fastboot oem idme bootmode 4000
echo "Loading TWRP..."
./fastboot boot $FKDIR/twrp2-blaze.img
Note: I was running this from my personal Linux (non VM linux system) as root. I just extracted firekit into my download dir and called the commands manually, since I didn't want to bother with a USB stick (since I run linux).[/QUOTE]
Nice good job
This is a rather extreme example of excessive quotation of a previous post, something that seems to be endemic to this site. I have seen few if any other web forums, blogs or whatever where people habitually quote fully a long comment that was posted previously, especially when it is likely to appear on the same web page. It's generally considered good practice to quote only the particular statements you are discussing, and to refer back to the post you are discussing by giving its author's id and/or the comment number.
And there is a Thanks button, after all!
aarons510 said:
This is a rather extreme example of excessive quotation of a previous post, something that seems to be endemic to this site. I have seen few if any other web forums, blogs or whatever where people habitually quote fully a long comment that was posted previously, especially when it is likely to appear on the same web page. It's generally considered good practice to quote only the particular statements you are discussing, and to refer back to the post you are discussing by giving its author's id and/or the comment number.
And there is a Thanks button, after all!
Click to expand...
Click to collapse
Sorry, it won't happen again.
How to recover when a bad bootloader flash puts your Fire completely out
I had this same problem, and it came from flashing u-boot.zip instead of the u-boot.bin it contains.
Once flashed and rebooted, the Kindle Fire became completely unresponsive. No power/charge light, USB port appeared completely dead. I called Amazon support and they sent me a new Fire. But I just couldn't accept that it was unfixable, so I kept trying. And I figured it out.
Here's the procedure:
Disconnect the USB cable.
Remove the Fire's back cover.
Disconnect the battery. This step is critical! It ensures that the CPU is completely powered off.
Have your USB cable plugged into the computer, but NOT into the Kindle yet.
Ground the "USB boot" pad on the Fire's motherboard, as described elsewhere (the USB boot shorting trick). Keep it this way for the next step.
Plug the USB cable into the Fire. At this point, the Fire has been turned on in USB boot mode and is being powered exclusively by the USB port. You can now stop grounding the USB boot pad.
Now reconnect the battery. This step is critical!
Use usbboot as documented elsewhere to send a good bootloader via USB and boot with it. You should end up in fastboot mode. AND your power light should be back on, probably green! NOTE This only boots with the bootloader you sent, it does not flash it. The bad bootloader is still installed.
Now use fastboot to install a good bootloader, and a recovery if you want. Or use a firekit script...
Finally you can reboot for real. Make sure it will really reboot before you put the back cover on. You may have to change the bootmode back to 4000.
You now have a working Kindle Fire again.
Why it works. This is conjecture based on my findings:
First, as long as the battery is providing power to the Kindle, the CPU is not powered completely down, even in this case where the device seems totally dead from a bad bootloader flash. Therefore, grounding the USB boot pad does nothing, because the CPU only honors this on powerup. Disconnecting the battery and USB forces the CPU to power down. If you then ground the USB boot pad and connect the USB, the CPU powers up and goes into USB boot mode.
It's possible that if you wait a long time (maybe many days) so that the battery discharges to the point that the battery protection circuitry stops all further drain, you might get the same effect without disconnecting the battery. I didn't have the patience to test this.
Second, the bootloaders I used (two firefirefire versions) apparently check whether the battery is connected, and halt if it is not. I suspect this is true of most/all available bootloaders. So even if you get into USB boot mode and send over a good bootloader, once the Kindle starts booting with that bootloader, if it finds that the battery is not connected, it quits: it never gets into fastboot mode. Hence the "waiting for device" messages noted earlier in this thread. Therefore, as soon as you have gotten the CPU in USB boot mode, but BEFORE you've run the usbboot command, you need to reconnect the battery.
The only thing that remains is to listen to the angel choirs sing.
And wonder why you had to brick the replacement Kindle that Amazon sent--and break some of the tabs on its back cover in the process of fixing it--in order to fail at proving to yourself that you did not cause the problem in the first place. And decide whether you're glad that you now own TWO Kindle Fire's with loose back covers...
Great write up hope I never need to use it but lots of people get stuck in your situation so it should come in handy
That's basically what I did. The problems I had were:
1) not performing the short correctly
I used the wands (not sure what they are called) from an ohm meter (disconnected from the ohm meter) to make the contact with the rail. On one of the Kindles it was easier than the other. I must have tried 20 or 30 times on the one that I had the trouble with. After I had resigned that it was not going to work, I decided to try "one last time", and it worked. So, as someone else said. "Don't give up."
2) not performing the short with the battery unplugged.
I performed the whole operation of booting and overwriting the bad bootloader with the battery unplugged.
Thanks for you input.
switched off...need help
I have kf, its switched off and dont switched on, with the USBboot
Code:
./usbboot aboot.bin u-boot.bin; ./fastboot boot twrp-blaze-2.0.0RC0.img
kf switched on, but its loaded once to yellow triangle then switched off, then i turn on kf and no more yellow triangle.... all do in ubuntu, windows dont recognazes kf. and the firekit allows ones do one of his scripts, and that all. i stuck on firekit, whats i need flash on kf to do it works?
Hi. Thank you for your explanation, but I am having trouble understanding one part. Step 5: Ground the "USB boot" pad on the Fire's motherboard, as described elsewhere (the USB boot shorting trick). Keep it this way for the next step.
Is there somewhere I can see a picture of this or get detailed instructions? I don't want to do it incorrectly. I screwed my Fire 8.9 up after trying to root using the Bin4ry Tool and appropraite 8.9 drivers. Now I have an unresponsive Kindle Fire 8.9. It won't power on at all.
Thank you for any help.
Yeah ... I was looking for a bit more detail on that part.... I just super-bricked my Kindle Fire 7" and am hoping that this Shorting Trick works... but I also am confused at what a Boot Pad is
[email protected] said:
Hi. Thank you for your explanation, but I am having trouble understanding one part. Step 5: Ground the "USB boot" pad on the Fire's motherboard, as described elsewhere (the USB boot shorting trick). Keep it this way for the next step.
Is there somewhere I can see a picture of this or get detailed instructions? I don't want to do it incorrectly. I screwed my Fire 8.9 up after trying to root using the Bin4ry Tool and appropraite 8.9 drivers. Now I have an unresponsive Kindle Fire 8.9. It won't power on at all.
Thank you for any help.
Click to expand...
Click to collapse
Found this buried in the forums
http://forum.xda-developers.com/showpost.php?p=19762674&postcount=51
Old thread, I know, but where can I find how to do the shorting trick
Nandr0idC0nsumer said:
Old thread, I know, but where can I find how to do the shorting trick
Click to expand...
Click to collapse
[INDEX] Kindle Fire Development
Sent from my KFFOWI using XDA Labs
sd_shadow said:
[INDEX] Kindle Fire Development
Sent from my KFFOWI using XDA Labs
Click to expand...
Click to collapse
Maybe I'm being dumb but I can't find it :silly:
Nandr0idC0nsumer said:
Maybe I'm being dumb but I can't find it :silly:
Click to expand...
Click to collapse
post #4 Unbricking
http://forum.xda-developers.com/showpost.php?p=61563704&postcount=4
Sent from my XT1060 using XDA Labs
sd_shadow said:
post #4 Unbricking
http://forum.xda-developers.com/showpost.php?p=61563704&postcount=4
Sent from my XT1060 using XDA Labs
Click to expand...
Click to collapse
Alrighty I've gotten it recognized on my Linux PC as OMAP444x USB Device!
I haven't a clue what to do next. thanks in advance!
Just got a new KF today and tried loading Go Launcher EX. Got to the point where I rebooted the KF and told it to always boot to GO Launcher..... BIG MISTAKE... something had gone wrong in the go launcher install and Not I have a pretty Kindle Fire Logo on my screen that will not go away.
I have downloaded KFU and Installed the drivers. With my KF on and plugged into usb my device manager shows. "Android ADB Device" which if i read correctly is what it should show.
But inside KFU it does not seem to connect to the device.
Is there something i have missed or is it truly a brick ...
I tried that ... Uninstalled device (made sure to remove driver) refresh device manager.. update drivers on kindle device... Then tried KFU
All I keep getting is waiting on device...
On the main screen it says:
ADB Status: Offline
Boot Status: Unknown
When I go into the Bootmode Menu and select 1 it sits on a screen saying waiting on device.
This is pretty much where i have been stuck at all day ...
Power your kindle off by holding the power button for like 30 seconds its very likey that adb will not detect your kindle it cannot while its in fastboot But first try this shift plus right click on the tools folder in kindle fire utility select open command window here power your kindle off and enter the command Fastboot getvar product (hit enter)Plug your kindle in it will power on in fastboot If you get the response product: kindle then we can move on.
if you get the response product: kindle Type fastboot oem idme bootmode 4000 (hit enter)fastboot reboot (hit enter)
Nothing.?then Then next time try fastboot -i 0x1949 getvar product (hit enter) when it says <waiting for device> plug in your powered off device if it says product: kindle type fastboot -i 0x1949 oem idme bootmode 4000 (hit enter)fastboot -i 0x1949 reboot(hit enter)
Fastboot getvar product
fastboot -i 0x1949 getvar product
Click to expand...
Click to collapse
I tried both of these. Each time i unplugged the KF, held power for 30 secs(using a timer),typed command then hit enter, then plugged in KF.
both times it powered on and went to the Kindle Fire logo and the command window just said waiting on device. A side note is that during power on but before windows beeped as if it had recognized the device the KF logo blinked a few times.
Don't unplug it.
I've found with mine, whenever I'm stuck in fastboot I do the following:
1. LEAVE THE KF PLUGGED INTO THE COMPUTER AT ALL TIMES!
2. Uninstall all instances of the Android Device in Device Manager.
3. Power off KF by holding the power button for NO LESS than 30 seconds. Even when it looks off, keep holding it and count to 30. (keep plugged in)
4. Power on the KF by simply clicking the power button once. (still plugged in)
5. Once the KF is back at fastboot, the computer should automatically install the drivers from the KFU folder, if not then manually point it there.
6. Open KFU and start run.bat
7. At the menu, regardless of device status (mine says offline/unknown when in fastboot mode), press 1, enter, 1, enter.
so are you suggesting i do the command line stuff?
EDIT.... any way i cut it im getting the same Kindle Fire screen ...
one I used this -i 0x1949 one I didnt because sometimes it doesnt matter but lelandfried is suggesting to try to use kfu to reset your bootmode which is logical and keep working with your drivers which also makes 100% sense keep trying you could get lucky and something will work its windows darn drivers that are killing you another option is this http://forum.xda-developers.com/showthread.php?t=1670405 then you wont be messing with the drivers anymore add sudo to the front of all your fastboot commands.
If I have ubuntu running on a VM can I do this through there? I have mixed success using usb devices
whoops sorry soupmagnet will know if it will run on a vm ask him he can give you the best advice
No problem. Im going to give it a shot... I have done everything i can think of to get the right drivers on here in windows. As best as I can tell from the chart on this thread http://forum.xda-developers.com/showpost.php?p=23747671&postcount=2
I have the ADB driver loaded for Recovery,Stock SW or ROM (USB Debog On)
I think I will try the ubuntu thing for a bit .... Frustrating .. very frustrating
I gave ubuntu VM a shot. I was able to connect to the device via usb in the VMWare console then i tried to run the two commands given earlier in this thread ... but i was never able to get anything but a <waiting for device> message in the terminal window.
Hopefully someone can give me some new guidance. Or show me where im going wrong so far. I feel like its something dumb that im missing ...
did you use sudo before all your commands and plug in your prepowered off kindle in when it says waiting for device?
Deslyxia said:
I gave ubuntu VM a shot. I was able to connect to the device via usb in the VMWare console then i tried to run the two commands given earlier in this thread ... but i was never able to get anything but a <waiting for device> message in the terminal window.
Hopefully someone can give me some new guidance. Or show me where im going wrong so far. I feel like its something dumb that im missing ...
Click to expand...
Click to collapse
Soupmagnet said he had problems getting the KF to work with VMWare in fastboot mode. YMMV. I use Parallels Desktop and have no problems with it.
The most telling thing you said in this thread...
Deslyxia said:
A side note is that during power on but before windows beeped as if it had recognized the device the KF logo blinked a few times.
Click to expand...
Click to collapse
If the logo "blinked" a few times, then it's not in fastboot mode. It is most likely past the bootloader stage, loaded the boot partition and trying to start up the system. At this point, your best hope is to send it some adb commands to get the KF into fastboot or recovery, but it might not be far enough along in the process to accept adb commands either.
Read the following post about fastboot mode...
http://forum.xda-developers.com/showthread.php?t=1668159
Most people in your situation end up buying a factory cable.
Okay. thank you to everyone for the help so far. From within Ubuntu I was able to use this guide http://forum.xda-developers.com/showthread.php?t=1414832 to get into fast boot mode. From there I installed TWRP Recovery then rebooted into recovery mode. Then I installed FFF, Rebooted into recovery mode and reset to factory.
When I rebooted I got the FFF boot screen and let it boot like normal to a factory reset KF.
Again thank you all for your help .
I'm glad you got it going just make sure you do all the right things if you start flashing roms don't be afraid to ask questions its better than getting messed up again always make backups and do proper wipes just don't wipe your SD card or let your battery die good luck
I dunno how to do adb thru Ubuntu, even though I have it on my desktop. I do all my adb stuff through my Windows laptop.
Glad to hear you got it going. I'm bookmarking this thread for the Ubuntu links and info, Thanks!
Hi all,
First off, this is my first post :victory: and I need some help.
Last night I used this thread to successfully get root access on my Kindle Fire HD 8.9".
Then, wanting to install CyanogenMod 10.1 on the Kindle, I tried to install the second bootloader and TWRP Recovery. At this point, the Kindle began to reboot. When it turned on, the Kindle Fire logo appeared, shined a few times, then blank red covered the screen.
I can turn on/turn off the Kindle, but all I see is this red screen. Anything I can do?
I've looked at factory cables, hopefully there are some things I can try before I buy that...?
A factory cable won't work on the 8.9
Disconnect the USB cable
Turn the device completely off (hold power button for 10 seconds)
Enter: fastboot -i 0x1949 getvar product
Reconnect the USB cable
As the device powers up, if your fastboot drivers are working properly, the device should boot into fastboot mode. Use it to restore your saved partition images.
Thanks for reply
Hi soupmagnet,
Where do I enter the command "fastboot -i 0x1949 getvar product"?
In command prompt on the computer?
EDIT: Self-explanatory It worked perfectly - thanks!
HAVING SAME PROBLEM KFHD 8.9 2nd Gen RED BOOT.
I have the same problem. Can boot into fast mode with KFFA, but restoring stock settings seem to be Impossible. I have tried to restore with ADB, ADB (Fastboot), KFFA, and KF SRT. No matter what red boot screen will not go away and device can only fastboot. Any help?
JonnyLawless said:
I have the same problem. Can boot into fast mode with KFFA, but restoring stock settings seem to be Impossible. I have tried to restore with ADB, ADB (Fastboot), KFFA, and KF SRT. No matter what red boot screen will not go away and device can only fastboot. Any help?
Click to expand...
Click to collapse
Red screen is also considered a hard brick. Sometimes restore does not work.
Same happened here
Today I rooted my kindle fire 2nd gen10.4.8 using vroot I also installed a boot loader that as soon as I tried downloading shut my kindle fire down and when I tried unsuccessfully to turn it back on the red kindle fire symbol came for a second and then the careen was red
http://forum.xda-developers.com/showthread.php?p=46154263 follow this and you should all be away from that red screen
Sent from my Amazon Jem using XDA Premium 4 mobile app
same here but worse
My kindle is rooted and when i flahsed a recovery it asked if i wanted to boot into recovery after i said yes then when it booted the kindle fire logo appeared for about 1 second then a red screen slid in from the side now it wont boot into recovery fastboot or normal mode and i have reinstalled kindle drivers several times as well as fastboot.exe and also adb.exe and nothing works the computer sees it for 3 seconds if i hold power volume down but then it goes to red screen
You need to run this on the computer: fastboot -i 0x1949 getvar product
Once it says waiting for device, plug the kindle in while it is off, if the bootloader isn't too damaged it should kick into fastboot. Hopefully you also installed the fastboot drivers previously or your best bet might be a Linux live distro like Ubuntu.
Sent from my Amazon Tate using Tapatalk
stunts513 said:
You need to run this on the computer: fastboot -i 0x1949 getvar product
Once it says waiting for device, plug the kindle in while it is off, if the bootloader isn't too damaged it should kick into fastboot. Hopefully you also installed the fastboot drivers previously or your best bet might be a Linux live distro like Ubuntu.
Sent from my Amazon Tate using Tapatalk
Click to expand...
Click to collapse
fastboot doesn't recognize if there is a way to fix this or a way to keep the kindle connected for more then 3 seconds i would appreciate it
What does the kindle show up as for those 3 seconds? Because usually it shows up as a jem device (without the driver installed) or a adb device (with fastboot drivers installed) and in those 3 seconds that command gets it to go into fastboot mode so you can fix it. All that needs doing is the bootimg needs to be flashed or erased and fastboot should be more cooperative.
Sent from my Amazon Tate using Tapatalk
I ran the fastboot command like you said, and got my kindle to go into fastboot but i have no idea what to do next.
should i run certain files?if so please tell me where and how?
Use kindle fire first aid or system restore tool for the rest once it is in fastboot mode or flash a backup of your boot image with "fastboot -i 0x949 flash boot boot.img", that should fix a red screen/bad loop scenario where fastboot is not working well, etc.
thats the problem
stunts513 said:
What does the kindle show up as for those 3 seconds? Because usually it shows up as a jem device (without the driver installed) or a adb device (with fastboot drivers installed) and in those 3 seconds that command gets it to go into fastboot mode so you can fix it. All that needs doing is the bootimg needs to be flashed or erased and fastboot should be more cooperative.
Sent from my Amazon Tate using Tapatalk
Click to expand...
Click to collapse
i cant tell what it shows up as because by the time it shows up in the device manager the kindle disconnects
how do i flash a boot.img if the kindle is only connected for 3 seconds and fastboot isn't working
A ubuntu live os probably would do the trick
May I give up kindle fire hd 8.9 ?
LinearEquation said:
Red screen is also considered a hard brick. Sometimes restore does not work.
Click to expand...
Click to collapse
As you told. I try use fastboot by KFFirst Aide or KF SRT 2.1 but not thing chance. My screen still blank red. So Sad .
My Kindle Fire HD 8.9 Use stock rom from amazon 8.5.1.
Have we have another way to fix it ?
So I've got a bricked Kindle Fire 2. It was rooted and running perfectly previously, but then I decided to update to the newest Amazon update 10.4.6. I followed their instructions on doing it instead of flashing, and it got stuck in bootloop. Yay.
I've got a fastboot cable. When I plug it in, my Kindle displays fastboot as expected. I have one with the blinking green light, and solid red light.
When I try to enter any fastboot commands, nothing happens. For example, "./fastboot -i0x 1949 devices" (I'm on a Mac) gets nothing.
On my PC at work, it was recognized as a Kindle in Device Manager. I'm on a Mac at home (no PC) and not sure how to ensure if it's recognized or not. Running adb devices returns nothing as well.
Any bright ideas?
*EDIT:
I had a space in there that I shouldn't have. So "./fastboot -i0x1949 devices" returns the device number, but trying to flash an img does nothing. I have to cancel the entry.
Okay, NOW any bright ideas?
Your syntax is still off, try "./fastboot -i 0x1949 getvar product" and see if it spits anything out.
Sent from my Amazon Kindle Fire HD running CM10.1 Tablet UI using xda-developers app
i used fastboot cable plz help me so what basically happned was that my kindle went into soft brick so my kindle would turn off and on and off it was basically a loop and this happend because i updated twrp to 2.0 and so i was given institution to buy fastboot cable and give the kindle some commands through cable and i did but when i gave last command to restart it it did not restart i charged it all night and day but still nothing i try to reset but still nothing plz help and i have a 2nd kindle fire hd 7 generation Thank you