yashsingh1/xdaforums huggingface dataset:
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Sideload CPU-Z and check SOC tab:

- Snapdragon 800 = 3rd gen

- Snapdragon 805 = 4th gen

Additional details here.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] sd_shadow:
Amazon Fire Tablet Specs https://developer.amazon.com/appsan...ications/01-device-and-feature-specifications
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] machochico:
Thanks for the previous help. I took the plunge and decided to install a custom Rom to the Thor (running Fire Nexus ROM - KTU84Q [09 Apr 2016]). And I am very happy with the ROM, seems like everything is working as it should, but battery life is very very poor. Almost half the time I used to get on Stock FireOS (OS 13.3.2.0) What kind of battery life should I be expecting? I am currently getting about 100% over 20 hours with maybe 5 hours active use. It does not use much while sleeping either (<1% overnight).

I first unlocked the HDX with the oneclick by draxie tool, and installed TWRP (2.8.7), then performed a factory reset from TWRP and flashed the ROM. I've noticed that some other posts mention to make sure to flash to the Stock Slot when using Safestrap, but should I worry about that with TWRP? Does anyone know which slot does TWRP install to?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] sd_shadow:
Safestrap is a bootstrap recovery, the recovery is twrp based, but is modified to work with a locked bootloader

the safestrap recovery doesn't replace the stock recovery, but rather tge boot process is hijacked

so the custom Recovery can be used

Hashcode added slots to SafeStrap so /system could be left untouched if wanted, these slots are created on the storage partition

Normally twrp doesn't have slots, and rom is just installed on /system
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
I have extensive experience with this rom and its two immediate predecessors (multiple hours per day over a 15+ month period) and can attest to the power consumption characteristics which mirror most other HDX roms when not encumbered with active background tasks. Draw down is well under 1% per hour while sleeping and 10-15% while performing a typical mix of tasks such as email, browsing, forums and video playback. This on a middle age device with well exercised batteries (hundreds of full charge/discharge cycles). Grab a task manager, battery monitor like GSam and cpu app such as OS Monitor to help find the culprit(s) that are draining your battery. Also verify radio and location settings mirror your preferences. Both can contribute to excessive battery use in certain configurations.

[MENTION=4267571]sd_shadow[/MENTION] responded to your second question. Bottom line: slots are irrelevant when using native twrp.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] machochico:
I do use the GSAM battery monitor and one of the biggest battery drains is "Phone Radio" Not sure what I can do to combat that (I don't have the LTE version, just the Wifi). I've set Location to Battery Saving and turned off Wifi Scanning. Is there anything else I can change to prevent the Phone Radio drain? Is this just a false report from GSAM?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Red herring; there is no actual drain from 'Phone Radio' on WiFi only devices. Believe this only occurs with the HDX Nexus ROM v4.0.3-4.0.5 and was resolved in the immediate successor, Fire Nexus ROM. HDX Nexus ROM has been discontinued; you may want to consider updating. Read the first few posts of the linked thread for prerequisites and upgrade guidance.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] darthnix:
How do I know if my device is 3rd or 4th generation if I don't remember what year I got it? I just rooted and blocked the OTA on 4.5.5.1 by the way, so I can't check the version to help me.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] sd_shadow:
https://developer.amazon.com/appsan...ications/01-device-and-feature-specifications
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] darthnix:
Oops, it actually says "Kindle Fire HDX (3rd Generation)" under "Device Model" in my settings, but thanks.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] mohzean:
Hello,

It seems I brick my tablet, I installed Safetrap, create a backup, installed Google Play services using OpenGapps. My device is stuck on google wizard, can't pass chose language screen.

I tried to restore Safetrap backup but failed.

I don't know if I can use safetrap to install stock rom.

Please advise.

Thank you
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Bad choice; layering Google Service over FireOS v4 (not v5) almost always yields poor outcomes. Restoring your stock backup is the best first choice. Try returning to Safestrap recovery and performing a 'factory reset' from the Wipe menu via slider at bottom. Then attempt to restore the backup.

If that doesn't help consult the following threads for some ideas:

http://xdaforums.com/kindle-fire-hdx/help/kindle-fire-hdx-8-9-stuck-language-t3361354

http://xdaforums.com/kindle-fire-hdx/help/help-launcher-stuck-settings-buttons-t3328352​

You can restore stock FireOS 4.5.2 from here (custom version for Safestrap; use no other) but you need a means of getting the zip onto your device. It is unlikely adb access will work without USB debugging enabled in FireOS which you can't get to.

Caution: Do not attempt to perform any type of 'reset/restore/clear' from the stock recovery menu accessed via <power>+<vol-up>. Doing so will brick your device with Safestrap installed. You have been warned!
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] mohzean:
Thank you for your feedback

I wonder why these instructions are available on the site as successful and they are leading people to brick their device!
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
They are in various threads and posts. Like most community forums content and organization are provided by volunteers who unselfishly share their time and talents. Rooting, Safestrap, flashing, etc are more advanced topics that are not for the faint of heart. A healthy dose of research and and a few questions/conformations are advised before acting.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] mohzean:
Yes I do understand, thank you for clarification.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] i_a7mdona:
Hi,

I have rooted KFHDX 7 3rd generation safetrap 4.01 Twrp 2.7.1.0. All I want is unrooting my device and updating to the latest version. Please help.

Thanks
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Is FireOS still installed/bootable and if so which version (likely 4.5.2 or 4.5.5.1)?

Note you likely do not have twrp installed, just a safestrap rendition that like looks like twrp. Big difference.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] i_a7mdona:
Yes FireOS is installed and working fine on 4.5.2. Actually I don't know if I have twrp or no but this is what I got on top of the interface when I run safestrap "safetrap 4.01 Twrp 2.7.1.0".
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Safestrap recovery can be uninstalled using the Safestrap app which should still be installed on you device. If not use the link below; be sure to grab the version appropriate to your device. This assumes FireOS remains installed in the STOCK slot. If you don't know what this means and never installed a custom rom (Nexus; CM-11) on this device then FireOS is likely in the stock slot.

http://xdaforums.com/kindle-fire-hdx/development/recovery-safestrap-v4-0-1-t3137840/post61410598

Once Safestrap is gone FireOS 4.5.2 should update itself automatically to 4.5.5.1 which will also remove root. Unless you took steps to block OTA updates.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] i_a7mdona:
Yes I still have safestrap on my kindle and FireOs installed the stock slot but I have custom rom on slot 1. I guess I should remove the custom rom and unblock OTA then uninstall safestrap. Am I right?

Thanks a lot.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Yep - proper steps and sequence; sounds like you know the drill. Tips:

- make sure FireOS boots properly before proceeding

- to kill the custom rom simply delete slot #1

- never access or perform functions (eg: factory reset) from the stock recovery menu with Safestrap installed.

BTW - if you had an unfavorable experience with the custom rom (poor performance, sketchy wifi, bad battery life, etc) it is almost certainly due to the placement of that rom, or any other rom, in a secondary slot. Bad choice with Safestrap v4.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] i_a7mdona:
Yes, I had the sketchy wifi one and it made the custom rom useless to me. In addition I want to read amazon books, PDF is not so great and difficult to get used to. Thanks for the help.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
- sketchy WiFi is a direct result of rom operating in a secondary slot

- Amazon books can be easily read in their native format with Kindle app which is available to all; FireOS is not a prerequisite
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] i_a7mdona:
I appreciate if you can give me a link to tutorial on how I can have a custom rom on my kindle (if it only support kindle reader) from where I am now.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Such a tutorial does not exist but the steps are not difficult:

- download either CM11 or Fire Nexus along with any associated files outlined in the ROM OP

- boot into Safestrap recovery

- backup the stock slot containing FireOS (make sure this step completes successfully!)

- delete any secondary rom slots (eg: slot #1)

- perform a 'factory reset' (slider at bottom) from the 'wipe' menu

- flash the previously downloaded custom ROM along with any associated files

- clear dalvik and cache when prompted

- reboot

Obviously you'll want to do a bit more reading before diving in. Also note there are risks associated with any flash including a soft brick which may not be recoverable. The best defense against such an outcome is to read through others experiences, ask questions if unsure and post an outline of the steps you plan to follow for review before taking action. If something is amiss a contributor will quickly point it out. Good luck.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] irfan61802:
CM11 on Kindle HDX 7

Hi XDA,

I currently have cm11 safestap version installed on my kindle fire hdx 7. Just to confirm, that is the latest cm version i can install on it with safestrap because my kindle is running OS 4.5.5, correct? Will there be more cm versions made for safestrap? thanks. Also my kindle is rooted with super su but i dont know how to update the su binaries. If possible can u also gives me instructions to download the supersu pro apk. Thank you
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Security update will likely continue for CM11 until stated otherwise. CM12 and above are unlikely due to kernel restrictions.

Flashable SuperSU packages available via following link. Pro all can be installed from the Play store once the standard version has been flashed. Select 'normal' when prompted to update binaries; reboot immediately after update.

http://xdaforums.com/showpost.php?p=23427715&postcount=1

Tip: Make sure CM11 is installed in the STOCK slot overwriting FireOS. No secondary slots should be defined or populated in Safestrap v4.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] irfan61802:
Super Su binaries update

Thank you for your feedback. When you say update the binaries normally is it supposed to say success and then reboot because when i try to update normally, it says it failed and asks me if i want to try again. Regarding the pro version, doesn't it cost money on google play? Thank You for your quick and clear input.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
- if the binaries do not update try reflashing SuperSU in Safestrap

- if still no luck there may be conflicting remnants of another root manager (eg: Kinguser) that must be removed

- SuperSU Pro is a paid app; the author has selected Google Play Store for distribution and fee collection (yes, there are other ways to obtain it which I won't discuss)
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] irfan61802:
Sorry to bother you again but if i rooted my kindle fire by first installing king root and then using super su me pro to switch to supersu, would that interfere with the update process? If it does, how would i fix that? Would making it a system app or reinstalling it help? And if i still wanted to try, how would i reflash supersu in safestrap. Thank you so much!
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] sd_shadow:
SuperSUMe should have removed kingroot, but it may have missed something

I would download the newest Supersu.zip, and install in twrp/Safestrap recovery

SuperSu flashable zip

don't unzip, install in recovery, no wipes needed
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] langwei198811:
Do you know,how to unlock the x 7(fire Os>=326）？
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Not possible.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Broken One:
I got my Kindle Fire 7 HDX updated to 4.5.5.1 and rootet with King root. XPosed is not working anymore and tells me it would be not available for this version. Is this true or is there another version available to install?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Works fine - at least with custom roms. Be sure to go with KitKat variant of the framework.

http://repo.xposed.info/module/de.robv.android.xposed.installer
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Tellly:
Undo Custom ROM

Hey Guys

Some time ago i rooted and finally installed Custom ROM (CM11) on my Kindle Fire HDX 7" with your help and it was a big improvement and i could do nice stuff that wasn't on the normal Kindle Fire. But now I'm asking for help to delete the Custom Rom, the root and all that stuff to make it again stock Kindle Fire 4.5.5.1 (i guess) back. I had some issues with the memory space. The device won't work normally because it just has no more free space eventhough i have only 1 real application from the google play store for 200MB and i also lost the overview because i installed some other stuff like lucky patcher and so on. So is there an easy way to like reset factory settings and get the stock Kindle Fire back or just delete all the files on it to reinstall the CM11?

Hope you guys can help me

Telly
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
No need to return to stock; it is a trivial matter to wipe the device and reinstall CM11. A few questions make sure I understand your situation:

- assume you have Safestrap installed (crude robot graphic displayed for a few seconds when device rebooted)

- FireOS has been replaced by CM11

- CM11 is installed in the STOCK slot (not a secondary slot)
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Tellly:
Yes exactly but i managed to delete some of the data from google play service that was 3-4 GB.

So to reinstall CM11 i could just boot my device click recovery wipe and reinstall my CM11 zip?

But i also would like to know how to get back to stock Fire OS because i wanna have like an assurance that i can easily go back if wanted because eventhough the CM11 runs smooth and all that it is still based on Fire OS and i am never sure if i can use certain applications like those that clean your memory space because i have my CM11zip, Safestrapzip and Gappszip folders.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
The basic procedure is as follows:

- download the lastest CM11 image (here) to a safe location on your device (preferably a folder of your choosing located in the root directory)

- also grab the recommended GAaps package and SuperSU from the same post

- if possible verify the CM11 checksum (md5) with ES File Explorer or a different tool

- keep your older (known working) CM11 image for emergency recovery until you confirm the above file works

- boot into Safestrap recovery

- use 'File Manager' under the 'Advanced' menu to double check the location/existence of the above file

>> I recommend this step because if you wipe and don't have a valid rom to flash the device is toast <<

- from the home screen select 'wipe' and then use the slider at the bottom to perform a factory reset

- from the home screen select 'install' and flash the CM11 image, a suitable GAaps package and SuperSU

- reboot and initialize CM

I recently assisted another user with the installation of Nexus. You can find that thread here which offers an expanded version of the above bullets. Obviously some of the information isn't relevant to your situation; just skip over those sections.

FireOS can be restored at any time by simply flashing the Safestrap compatible version of 4.5.2 located here. Use exceptional caution selecting the correct file as flashing the wrong image will likely brick the device with no possible recovery.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] hoppelhaschen:
Restore to Stock Image

I have Thor running 4.5.5.1, rooted. I accidentally deleted some system apps and I was wondering if there was a way to restore my tablet to the stock firmware, not just factory reset. Thanks
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] sd_shadow:
I think that you can use adb sideload with stock recovery
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Unfortunately, you can't reload FireOS, and related apps, directly as the stock recovery lacks sideload capability. Nor can you emulate an OTA update as the service only supports upgrades, not a same version refresh. As 4.5.5.1 is the terminal release of FireOS for 3rd gen devices there is no 'upgrade' to install.

There is a workaround using Safestrap v4 that fairly safe. In a nutshell you downgrade to 4.5.2 then allow the device to naturally update itself to 4.5.5.1. Let me know if you want more detail on this option (suggest not trying on your own as there are several brick opportunities)
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Blackatron3000:
Kindle Fire HDX 7" Stuck on Logo and not recognised by the computer

So i've had a Kinde Fire HDX for quite some time and recently, annoyed by the Fire OS, i attempted to install TWRP to install Cyanogenmod. However, after receiving errors such as 'FAIL:Locked hw' or something of the sort, i left it and wanted to boot back into the normal OS. When i did this, it left me in a bootloop. To try and fix this i tried to hold the power button and vol up button to reach file system recovery and reset to factory settings. After i did this, it sent me back into a bootloop and was not recognised by my computer. Help please?!
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Bad news. Unless your device has an exploitable bootloader -and- you made the necessary preparations attempting to flash a custom recovery like twrp is typically fatal. The stock recovery environment on HDX devices lacks a mechanism to restore FireOS (or any other rom) and the fastboot environment is intentionally crippled by Amazon. In short, it the rom is borked so is the device.

Curious ...

- what version of FireOS was on the device?

- rooted?

- how were you trying to install twrp?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Blackatron3000:
It was the latest available and 2.8.5.0 TWRP. It was rooted but with kingroot. I checked with root checker and said it was rooted.

I really need help fixing this please help me out.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Blackatron3000:
I used fire flash but it kept crashing
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Yeah, that's a no-go. See previous post on recoverability. Sorry for your loss. If you stumble upon another HDX be sure to read up on options applicable to this device. It's not like other Amazon devices, phones or other generic Android tablets. Very touchy, easy to brick and usually impossible to recover.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Blackatron3000:
So I've lost?

Is there no way to fix?

No hope?

Please?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Same answer as before. How is a fix (if there was one) suppose to be applied if the rom and recovery are borked and you can't gain access via tether? You own a doorstop.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Blackatron3000:
You said unless I have an exploitable bootloader. Can I do something with that?

---------- Post added at 08:31 PM ---------- Previous post was at 08:30 PM ----------

What if I use a factory cable?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
What version of FireOS is on the device? If > 3.2.3 the bootloader can not be directly unlocked. 3.2.4-3.2.6 can be rolled back to unlock but the FireOS must be responsive to pull this off. You also need adb and fastboot access.

Factory cables are ineffective on this device.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] bsdnix:
Hi, I have f-up bigtime. my Amazon Kindle HDX 8.9 (3rd gen) was updated to latest version 4.5.5.1 and I wanted to root the device. I've done it with Kingroot and I installed Safestripe 4.01 for (by table - apollo). Then I wanted to install google apps, but I obviously downloaded wrong .zip to flash via Safestripe. It flashed new Google services and applications, and most likely over written the original files of the Amazon. Now my FireOS boots and I can use the device, but when I open some application, I get stuck there since I've been missing back button, home button, task switcher, etc.... (That usually stands on the right side of the tablet). What are my possibilities for flashing to the original version of the FireOS? I already tried to disable Wifi, and putted stock "update-kindle-14.4.5.5_user_455002120.bin" on the root of the internal device and tried to force "update" via settings, but it always said that this version is the lower version of the current one (which is bizarre since it is the same - latest firmware that is available on amazon site...). How can I flash "update-kindle-14.4.5.5_user_455002120.bin" on my apollo device?

Thank you in advance and best regards.

---------- Post added at 08:17 PM ---------- Previous post was at 07:38 PM ----------

Never mind, I have enabled WiFi, but set Forget my wifi network. Added 14.3.x.x binary to root of internal storage, and tried again to perform "update". It took quite long time of "verifying the binary", but eventually it upgraded to older version and now it is stock version which works.

Thank you anyway.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
STOP!! Disable WiFi immediately and then power down! If your recently downgraded device receives an OTA update while running FireOS 3.2.8 it will brick with NO possible recovery. Respond to this post when your device is secure and I will help you get back to 4.5.5.1.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Marcucco:
Feasability question, Rooting?

I have a Fire HDX7 ( C9R6QM ) with 32gigs, I'd like to use it as a storage device with a screen to hold manuals and jpgs. I'm a camper and kind of a closet doomsday prepper so I'd like to fill it full of pdf's on edible plants, medicinal herbs, first aid stuff, USGS topo maps, and parts and shop manuals for things like my Jeep.

The size and weight make it easy to pack and it charges nicely off my portable solar array.

It's currently running 4.5.5.1, the web browser is hideous and the pop-up ads every time I turn it on are really annoying.

Would rooting allow me to dump all the apps I do not/will not ever use in favor of some I might and allow me to use a different web browser?

Regards
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Yes. But you will get a lot more mileage/satisfaction replacing FireOS with a different OS/ROM such as Nexus or CM11. Take a read through the following thread to get a sense of what's involved. Not particularly difficult provided instructions are followed.

http://xdaforums.com/kindle-fire-hdx/help/confused-partially-fire-os-to-proper-rom-t3421623