yashsingh1/xdaforums huggingface dataset:
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
A good (albeit not concise) reference is the thread shown below, especially post #67 to which I have also provided a link.

http://xdaforums.com/kindle-fire-hd...bootloader-unlock-procedure-software-t3030281

http://xdaforums.com/kindle-fire-hd...lock-procedure-software-t3030281/post58897784
[Kindle Fire HDX 7" & 8.9" Android Development] W99DEY:
Second post has almost nailed it for me, have the codes and the file.

The HDX looses connection when in fastboot. Will try diff cables and drivers tomorrow... Only took me 5 mins to work out with the second thread... Thanks... Nearly there now. Hope 3.5.2 isn't the problem... Don't think so. I will need fastboot to flash the bootloader mentioned in the first page also....
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
FireOS 4.5.2 should not be a problem as long as it's rooted. If you are running Safestrap v4 and the active rom is rooted the underpinnings satisfy that requirement.

Fastboot drivers for Windows are always a PiTA. Keys to success:

- download drivers from the OP of the first link I supplies (by ONYXis)

- also grab Minimal ADB and Fastboot if needed (use Google to find)

- launch Windows Device Manager

- tether device while in fastboot mode; not what gets added to dev mgr

- uninstall those devices

- reboot both devices

- retether in fastboot mode but direct Window to use the downloaded drivers vs those that it finds

- from Windows command prompt issue the command 'fastboot devices' to verify connection

Good chance the above procedure won't work the first time. Keep trying, tweaking the procedure and sequence based on your setup.
[Kindle Fire HDX 7" & 8.9" Android Development] W99DEY:
Cheers for your time and help and the pointers... I have flashed many devices, before so know they are a pain. Some cables are better than others also...
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Yep - and stay away from external USB hubs (always) and USB3 ports on older hardware.
[Kindle Fire HDX 7" & 8.9" Android Development] bigboolean:
Nice! I just installed it and I can't wait to really get into it, but I have a quick question: do I need BusyBox? I'm only asking since I needed it when using the Fire Nexus Rom (which is great btw).
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Without context hard to respond. Fire Nexus rom itself does not need BusyBox. Neither does CM11. Must be some app or tool you are using.
[Kindle Fire HDX 7" & 8.9" Android Development] bigboolean:
It didn't? I guess I'm so used to rooting my Nexus devices I assumed I needed BusyBox and installed it after setup. Thanks for the advice!
[Kindle Fire HDX 7" & 8.9" Android Development] W99DEY:
Well I got the bootloader unlocked... :)

Took a while to get fastboot working though. I ended up using the universal drivers, I had to boot the PC into troubleshooting boot to disable driver signature checks, so the driver would work. This has been a problem with fastboot since windows 8.1. I also had to insert a line into the registry.

I also kept making the unlock file without the last two digits (mm) of the device id! (not reading the instructions!)

One of the threads you posted said that you only needed to flash the old vulnerable, so I did, the HDX would only boot into fastboot.... I wrongly assumed that it would boot back into safestrap 4.01...... note (wrongly assumed)...

I then had to flash acreoo TWRP 2.8.7.0 in fastboot to sort.

I had already had the ROM copied to the device...

I will try and post a link to the thread to sort the fastboot issue.... in the fastboot thread.

So anyway, the ROM works great.... I installed the CM13 one in the link you said... Is this the recommended one?

Anyway, cheers for your help. Got there in the end....
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Thanks for update - glad you made it! The path to unlock success varies by individual situation hence no concise 'user friendly' guide has been published as you discovered. Even the wonderful 1-click unlock utility (currently on sabbatical) which leveraged a virtual machine to mitigate hardware variations frequently stumbled with situations the author never anticipated.

If you happen to stumble upon the post referenced above (re: flashing old vulnerable) please provide a link as will update if needed. Suspect the presence of Safestrap recovery played into the outcome.

There are no 'recommended' ROMs but the following four are worth a look (Lollipop and above since you are moving off KitKat):

- CM 12.1 (what I currently use as it supports all my apps)

- CM 13.0

- Nexus 6.x (AOSP; my next stop...but no migration path from CM)

- AICP 11 - CM 13 base with an alternate suite of UI tweaks
[Kindle Fire HDX 7" & 8.9" Android Development] woomdawg:
update

Hopefully this is not a stupid question but I was just poking around in the settings and in tablet I can click on cyanogen mods there is a spot to check for updates and there is all sorts of nightlys available, can I safely update from here?
[Kindle Fire HDX 7" & 8.9" Android Development] woomdawg:
Figured it out
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
For the benefit of others - answer is 'no' as CM 11 nightlys are not produced for HDX devices (they are for CM 13).
[Kindle Fire HDX 7" & 8.9" Android Development] woomdawg:
Thanks Davey. On point as always.
[Kindle Fire HDX 7" & 8.9" Android Development] ctranz:
thanks

Thanks OP. This is the only rom that has working wireless display (miracast) and chromecast mirroring. Question: is it likely that the other roms 6.0/7.0 will ever have working miracast/chromecast mirroring within the year?

++ for the backport security fixes -- I'll be applying them monthly as soon as you get it baked. Thanks again :D

P.S. I'm not using safestrap and flashed it using TWRP.
[Kindle Fire HDX 7" & 8.9" Android Development] takenusernameidea:
This works with 4.5.5.1 on a Kindle Fire HDX 7 right?
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Yes, with Safestrap v4 (stock slot) or unlocked bootloader.
[Kindle Fire HDX 7" & 8.9" Android Development] takenusernameidea:
So do you install the ROM on the stock slot or do I install it on the other slots available? Sorry, I'm new to flashing with Safestrap and I don't want to mess anything up.
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Always install custom ROMs in the stock slot overwriting FireOS. Do not create or populate secondary slots in Safestrap v4; resource and power management functions will not work properly.
[Kindle Fire HDX 7" & 8.9" Android Development] rex_vitis:
Complete wipe

Is there an option to completely erase the entire device and start fresh? Unfortunately, wiping the device and resetting it using Safestrap doesn't do the trick. I once installed an Amazon Underground App two weeks ago and I still have annoying ads popping up every few minutes. Tried wiping system, cache, and sd card various times, but nothing helps. I also noticed that app folders are still there after wiping the device. None of the Adblockers or ad detection apps help. Does anyone have an idea? I'm on latest October version.
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Wherever you installed wasn't Amazon Underground. The 'official' app does not behave that way. Not even close. Welcome to the world of crapware.

If CM-11 is running under SafeStrap v4 there is no way to completely wipe the device. However, you can unlock the bootloader which grants full access to all partitions which can be selectively wiped with TWRP or fastboot commands. You can also flash the full suite of custom ROMs for this device including various Lollipop and Marshmallow builds. SafeStrap v4 compatible ROMs are all KitKat based.

http://xdaforums.com/kindle-fire-hdx/general/thor-unlocking-bootloader-firmware-t3463982
[Kindle Fire HDX 7" & 8.9" Android Development] bergkuh:
I've downgraded, unlocked my bootloader, installed TWRP 3.0.0.1 and CM11. Works great so far, but have a massive issue with my WLAN. After unlocking the tablet, my WLAN is dropping connection every second until I disable it. Is this a known problem and/or is there a fix for this issue? Many thanks in advance for your help. Keep up the awesome work! :)
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
This is not a known issue with the CM 11 build for this device. However, there aren't many data points on thor (7" HDX) devices with GPS and LTE. The radio chipset(s) are different vs WiFi only devices.

Try setting a static IP either on your router or the device itself (later is accomplished by long pressing the connection in question in WiFi settings). If possible, only utilize the 2.4Ghz band and disable the 5GHz transmitter on your router if it is dual band capable. If that's not possible/practical bring the device to another location with a different AP and/or public WiFi. Obviously some of the more aggressive steps are simply for problem determination/isolation. Can get into the particulars and potential remediations if you are successful in identifying the smoking gun.
[Kindle Fire HDX 7" & 8.9" Android Development] bergkuh:
This fixed my problem! :) Many thanks for the tip! :good: Just another question, is there a kernel that support the double tap to wake feature?
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Unfortunately, no. To my knowledge there are no independent custom kernels for this device and I have not heard of any effort to tweak popular alternatives like ElementalX. I believe hardware support is also required for features like tap to wake.
[Kindle Fire HDX 7" & 8.9" Android Development] bergkuh:
Thanks again for your reply. Sad to hear, but it's not a neccessary feature and I'll use the unlock function of the origami case.
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Update: forgot about this one that has limited additional functionality (mild overclock) and is rather old. My personal experience with this device (Thor) is internal throttling kicks in pretty quickly with all cores maxed at 2.15 GHz. Seems unlikely any type of OC would have a meaningful impact.
[Kindle Fire HDX 7" & 8.9" Android Development] Samson Lau:
Hi,

My device is HDX 7: Thor and installed cm-11-SAFESTRAP-20161016-UNOFFICIAL-thor with gapps-kk-20150412-minimal-edition-signed ROMs.

I facing the problem now is the device auto power off during screen rotate in the main page and apps page. Any idea?

Thanks.
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Responded to Nexus question in other thread. If you opt to stick with CM11 or another HDX ROM you should unlock the bootloader as Safestrap v4 is now obsolete and no longer supported.
[Kindle Fire HDX 7" & 8.9" Android Development] Arthasdude:
Installed this rom again after experimenting with MM and N. My device feels wonderful again. Gotta love this stable rom. Everything just works and with greenify installed I loose 3-4% battery over night.
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Agreed. CM11 and Fire Nexus HDX are gems, especially when augmented with Xposed Framework, GravityBox, Greenify and Nova Prime. I would still be there if not for a few app incompatibilities with KitKat based ROMs.
[Kindle Fire HDX 7" & 8.9" Android Development] dineshdhakal:
Need help!

Hi,

My Fire HDX 7 (Thor) is running CM13 daily with an unlocked bootloader and TWRP installed. Since CM13 does not support LTE, I am thinking about moving to this ROM. Should I be expecting trouble? My only requirement is that I need the LTE to be working.

Thanks!!
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Aa you likely know CM11 and Fire Nexus are the only two custom HDX ROMs that support LTE. Both are feature complete and stable. That said, the LTE radio is no gem as it was originally intended as a method for obtaining Kindle books. Connection times are often slow and sometimes unstable. Data only; no voice. The integrated GPS chip updates too infrequently to be used for navigation. Also note both ROMs are KitKat based (Android 4.4.x) which present some app compatibility issues. Good luck.
[Kindle Fire HDX 7" & 8.9" Android Development] fboulegue:
i just did follow the information ... installed the safetrap, used the boot menu, flashed cyanogenmod and the Gapps for 4.4 but after that i rebooted my kindlefire hdx (3gen) and it sad it installing the applications after that it stuck at the cyanogenmod loading screen for last 15min anyone a idea what i can do or did wrong?
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
This procedure and SafeStrap v4 are outdated. New method is simplier, more reliable and supports a broader range of custom ROMs ranging from Android 4.4 (KitKat) to 7.1 (Nougat).

To exit your current situation (try each until device boots):

- try a full shutdown (long press <power>) followed by restart

- boot into SafeStrap recovery, perform a factory reset (under wipe menu) then restart; do NOT perform a factory reset from the stock recovery menu; device will brick

- switch to Fire Nexus ROM which tends to be more reliable

- restore FireOS

You'll likely need further instructions for the last two; post back as needed.
[Kindle Fire HDX 7" & 8.9" Android Development] fboulegue:
Done and back to Safetrap 4.01

Done but reboots into the bootloop from CM (before it shows me that i want to boot in SafeStrap)

yes would need help on these ... how do i load the rom without be able to boot the device (no SD Card slot)

Currently i m still stucked at the bootloop from CM
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
While device is booted into SafeStrap you should be able to adb push the Fire Nexus ROM (link below). GAaps and SuperSU are built-in so only one zip to transfer. Once on the device you can perform another factory reset and then install Nexus.

Are you familiar with ADB?

https://xdaforums.com/kindle-fire-hdx/orig-development/rom-fire-nexus-rom-ktu84q-t3322931
[Kindle Fire HDX 7" & 8.9" Android Development] fboulegue:
no but i already read some stuff that it shouldnt work with firehdx? i will check once again for that
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
ADB works fine on HDX devices including with FireOS (irrelevant at present). One more thing to try before going the ADB route:

- return to Safestrap v4 recovery

- perform a factory reset

- reinstall CM11 stand-alone; do not include GAaps

- restart device; see if CM now boots

If sucessful you'll have a functional platform for grabbing Fire Nexus and/or installing a 'new' bootloader and TWRP which eliminates the need for SafeStrap. Can also unlock the bootloader which opens the door to the full suite of custom ROMs.
[Kindle Fire HDX 7" & 8.9" Android Development] fboulegue:
[MENTION=5488402]Davey126[/MENTION] worked fine thanks alot
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Adding response from PM:

No need to remove Safestrap v4 provided you have a functional ROM.

There are two actions needed to expand the capabilities of your device and eliminate the need for Safestrap:

- flash (install) an vulnerable bootloader and TWRP (note the vulnerable bootloader is not a hack, just an earlier version)

- unlock the vulnerable bootloader

The procedure is outlined in several HDX threads; notably the OP in this one. I strongly suggest you initially follow only step #2 as this can be done via ADB which is usually pretty easy to set up regardless of host platform. Once this is complete you can install the Nexus build referenced earlier which provides a stable, working platform for working through the bootloader unlock. Safestrap v4 also be removed.

To use ADB you'll need a host machine (typically a Windows based PC or laptop) and a USB cable (the one used for charging should be fine). First step is to tether the device while CM is running and verify Windows sees it in File Explorer. Then install a package called Minimal ADB and Fastboot which can be obtained here. Bounce back when these steps are complete.

How comfortable are you working at/with a Windows command prompt?
[Kindle Fire HDX 7" & 8.9" Android Development] fboulegue:
yes i m will report back

---------- Post added at 09:34 PM ---------- Previous post was at 09:19 PM ----------

oki did move both files into the root folder of the kindle and did run the commands to copy it... after that i did reboot with holding Vol+ kindle shows now "[fastboot]" Ready

This https://xdaforums.com/kindle-fire-hdx/orig-development/rom-cm-14-1-thor-t3517481 kinda looks like the most current version (right?) they say Update TWRP to Android-7.1 builds located but for that i would need to use the bootload or you recomend any other rom higher then 4.4.4?
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
The OP in that thread was written with the assumption Lineage would be the ROM of choice...which it is for many. For the present exercise you need to stick to KitKat based ROMs until the bootloader is unlocked. Recommend using the ROM linked a few posts back which gets installed after step #2 is applied and TWRP availability/functionality is confirmed.

Caution: make sure the two files downloaded for step #2 are appropriate for your device. If the wrong bootloader is flashed the device will brick.
[Kindle Fire HDX 7" & 8.9" Android Development] fboulegue:
The linked one is lineage-14.1-20161230-UNOFFICIAL-thor this one isnt ok? What linked one your refere to?
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
This post. And no - you can't install Lineage until the bootloader is unlocked (as previously explained).
[Kindle Fire HDX 7" & 8.9" Android Development] arshileus:
Sound is too low. What can i flash to increase it? Do we have dolby atmos driver for kitkat?

---------- Post added at 11:08 AM ---------- Previous post was at 11:07 AM ----------

Sound is too low. How can i increase it? Do we have any driver for 4.4 kitkat? Dolby atmos or smth.
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Might work (here).

This ROM is well past EOL. Suggest updating to one of the excellent and well supported Nougat based ROMs such as LOS 14.1.
[Kindle Fire HDX 7" & 8.9" Android Development] CCF_100:
I can't get Open Gapps working with this rom...
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
No surprise; see post just prior to yours.
[Kindle Fire HDX 7" & 8.9" Android Development] ggow:
Info

As this is the only ROM where LTE can work...

I have been working on a new version of this ROM. It's nearly ready.

I will update the OP when released.

The name of the thread will change from cm-11.0 to lineage-11.0

Will have security patches up to November 2018
[Kindle Fire HDX 7" & 8.9" Android Development] ggow:
New Build is Up

- Dated 30 November 2018

- Included / Ported relevant Security Patches up to November 2018

- Updated to FireOS 4.5.5.3 binary blobs

- Retire AOSP Browser due to security holes

- Please install an up to date browser of your choice

- Upgrade external/openssl: 1.0.1e -> 1.0.1j

- ANT+: Update to v4.0.0

- giflib: Update to v5.1.4

- bsdiff: Check for corrupt patch

- jhead: Update to cm-13.0 branch

- libexif: Update to android-5.1.1_r38 branch

- e2fsprogs: Update 1.41.14 -> 1.42.9

- NOTE: for some reason we need to flash gapps and supersu again on upgrade
[Kindle Fire HDX 7" & 8.9" Android Development] cl-i:
Yes, you did it !!

This brings back my LTE HDX7 to live.

By the way: The OpenGapps App doesn't work any more, but this is also true for the latest CM11.

The update from CM11 to LOS11 works like a charm, all settings remain, only Google needs a new signin.

So many thanks again !!
[Kindle Fire HDX 7" & 8.9" Android Development] cl-i:
LTE trouble

The new Amazon AppStore does not work. Obviously Amazon want's this so.

After playing with the build.prop I got it to work again.

What remains for my O2 powered LTE in Germany is, that it is not working stable for me. I guess it's caused by the merging of 2 providers to one (O2 and E-PLUS).

E-PLUS is reported many times in my network-list, but this shouldn't be the case, because E-PLUS was eliminated. On the other hand they merged the nets with the old ID from E-PLUS.

After a short while, the tablet switches the channel with the effect that no data can be received any more, and the message "emergency calls only" in the quick-menu.
[Kindle Fire HDX 7" & 8.9" Android Development] ggow:
Try to setup your own APN settings again. This should override any faulty pickup of the old E-PLUS etc.
[Kindle Fire HDX 7" & 8.9" Android Development] cl-i:
Thanks for the advice. I will give it a try and make a copy of a working version from an Android-Handy.
[Kindle Fire HDX 7" & 8.9" Android Development] ggow:
New Build is Up

- Dated 21 December 2018

- Included / Ported relevant Security Patches up to December 2018
[Kindle Fire HDX 7" & 8.9" Android Development] eatatjoes13:
Sorry if dumb question, what version of android Gapps do i download?
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
That's going to be a tough find given Open GApps is no longer producing Kitkat builds.
[Kindle Fire HDX 7" & 8.9" Android Development] ggow:
Use this one:

open_gapps-arm-4.4-pico-20181222.zip
[Kindle Fire HDX 7" & 8.9" Android Development] von989:
Appriciate!! Could I use Magisk for this rom??
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Nope - stick with SuperSU or (preferably) the integrated root manager.
[Kindle Fire HDX 7" & 8.9" Android Development] cl-i:
Well, I have to disagree.

First of all the OpenGaps-App fails, so you have to visit the website.

There 4.4 is greyed out, but only because ARM64 is preselected.

If you change to ARM (32 bit), 4.4 is available and a package from January, 10th at the moment is available for download.

When installing Gapps I discovered, CM11's reboot to recovery is not working (for me at least).

The OpenGapps-App was able to do this, so it's a shame to loose it.
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
It would seem Android 4.4 builds are being produced irregularly. I am certainly savvy enough to select the proper architecture on the website; I do not use the Open GApps app. Today only Nano (my preference) and Pico builds are available. Last time I checked only Stock was available which is generally too large to for the system partition on a HDX unless other actions are taken.
[Kindle Fire HDX 7" & 8.9" Android Development] cl-i:
Well, so OpenGapps is an unsave candidate for 4.4.

In the good old times when our HDX7 was a Top-Winner, I always used the same ZIP (for more than 1 year).

Especially when using Nano, there shouldn't be any disadvantage. Right?
[Kindle Fire HDX 7" & 8.9" Android Development] DB126:
Google is constantly mucking around with Play Services/Framework and the portfillo of apps with strong dependencies. Incompatibility will eventually creep in unless all (or none) auto-update which isn't always the case. How long that takes is situational. I have gizmos that haven't seen a GAaps refresh in years. Others poop out once or twice a year. That said, you're probably safe on an Android 11 based ROM as the focus is elsewhere.
[Kindle Fire HDX 7" & 8.9" Android Development] tamanyan:
Hi,

I found that I couldn't use Bluetooth PAN-U via smartphone. Bluetooth connection can be established, but have no internet connection.

I use 21 December 2018 build on hdx8.9.

Could anyone solve this problem?
[Kindle Fire HDX 7" & 8.9" Android Development] Tersus:
First off I want to thank you for still providing updates for the kindle after all those years.

I recently digged out my hdx 7 and now want to update to this rom.

Even though I looked around the forum, I am kind of lost about how I should upgrade:

I am using your old HDX nexus ROM v2.0.5 .

When I boot to recovery, TWRP appears with version 2.8.6.0 . However, I read somewhere that this is probably not a 'real' recovery but only an emulated one.

When I boot into bootloader I only see the fire logo and [fastboot] with no actual version number. I assume this means I still have a locked bootloader.

How do I get to the required firmware versions (Stock base of .4.5.5.3 and Safestrap v4) without bricking my device? Do you recommend unlocking the bootloader and installing a 'real' TWRP version?