yashsingh1/xdaforums huggingface dataset:
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Cl4ncy:
Well, the procedure is linked in post #2 of this thread, but you shouldn't downgrade to 3.2.8!

Just update to 4.5.2 by downloading the update on your PC and copy it to the HDX (keep WLAN off/flight mode active!), install Safestrap v4, adb install Kingroot (and ES File Explorer if you want), root with Kingroot (requires a short internet connection, disable ASAP!), disable OTA by renaming the OTA apk, and install either Nexus v4 or CM11.

Note that CM11 works in secondary slots, Nexus v4 works in the stock slot only (in secondary slots WLAN won't activate).

Be sure you backup your stock slot and move the backup to your PC before you flash any custom ROM!
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Be aware there have been several reports of excessive battery consumption when using secondary slots in Safestrap v4. In each case the issue was mitigated once secondary slots were removed. Recommend only flashing to the stock slot. As [MENTION=6815340]Cl4ncy[/MENTION] said be sure to create backups before overwriting FireOS!
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] ricer333:
Thank you for this. Is there a link for the 4.5.2 fire OS? Curious but would this same procedure work on the 4.5.3?

Thank you again!

Edit: Google search yielded this page

<removed stupid softpedia URL since it never downloaded>

Looks like 7 HDX firmware is 13.4.5.2... Yes???

Edit2: Removed softpedia url as the download never really started. Searched through the webpage source and found the following URL (which is the same as what is linked by p-4 below). Putting direct link here as well for any others that may need it.

Direct download URL: https://kindle-fire-updates.s3.amazonaws.com/update-kindle-13.4.5.2_user_452004120.bin
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
Yes. Here is the link: http://xdaforums.com/kindle-fire-hdx/general/update-1314-4-1-1-probably-sangria-t2901813

But I will post a whole manual soon (1-2 hours). Where I describe everything what I did.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] ricer333:
P-4,

that would be great! If you post the steps I can follow up with some screenshots (if XDA will allow me to do that). I have been waiting so long for this day! I actually want to use this product so much. If CM12 is not able to be ported due to bootloader issues (not unlocking) that's fine, I can live with CM11.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
Hey,

the manual is online. Just look at my first post in this Thread.

And CM12 isn't available for now. But it might be adjusted soon (if some1 does that) for Safestrap v4.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] ricer333:
safestrap v4 for 7HDX?

Going through the original procedure posted by Dave126 here: http://xdaforums.com/kindle-fire-hdx/help/help-fire-os-4-5-5-to-custom-rom-t3196884

Links to Safestrap v4 here: http://xdaforums.com/kindle-fire-hdx/development/recovery-safestrap-v4-0-1-t3137840

In the Safestrap v4 link it says for THOR and APOLLO. I'm still learning the code names for these devices so I clicked into both links:

Safestrap v4 for THOR: https://www.androidfilehost.com/?fid=24052804347760109

Safestrap v4 for APOLLO: https://www.androidfilehost.com/?fid=24052804347760108

They both say in the description "For the Amazon Kindle Fire HDX 8.9 by ggow"

Am I missing something here? They have different fild id's and md5 hashes... but ???
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
Ohh right.

That is probably just a mistake.

I downloaded Safestrap v4 for THOR (i have the Fire HDX 7")

Source:

"Kindle Fire HDX 7" - Power and volume buttons on the back. Front-facing High Definition camera

Model #:KFTHWA (WAN) / KFTHWI (Wi-Fi)

Serial #:

Codename: Thor

Amazon Description: Product Page

Software:Fire OS 4.5.5, or 13.3.2.5

Fire OS 4 (fork of Android OS 4.2.2 (later updated to 4.4.3))

Forum: Amazon Kindle Fire HDX 7" & 8.9"

http://xdaforums.com/kindle-fire/help/index-amazon-kindle-fire-t3205350
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Thanks for sharing your experiences; hopefully others will benefit! One small request: add [MENTION=6815340]Cl4ncy[/MENTION] to the call out midway through your post. Guessing much of the assistance you received came directly/indirectly from him. Thanks again for taking the time to pull together a guide.

---------- Post added at 12:14 PM ---------- Previous post was at 12:04 PM ----------

Yep, nice catch. Just a heading typo on the Thor download page created by [MENTION=5749760]ggow[/MENTION]. The files are actually different as evidenced by the md5 values.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] ricer333:
p-4,

You were originally putting CM11 on your Kindle Fire 7 HDX (thor). What version of Open GApps did you go with? Looks like there's a few selections:

ARM, ARM-64, and x-86

Android 4.4, 5.0 and 5.1

Varient ranges from aroma, stock, full, mini, micro, nano, and pico

Thanks!
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
Hey,

ohh i didn't check the link. This are the right Gapps (just press download. The right things are already selected). I will edit the link now. http://opengapps.org/?api=4.4&variant=nano
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] ricer333:
p-4,

any reason why you chose a smaller GApps installation (nano) versus going with something larger/closer to stock like mini or full or stock?

Just wondering that's all :)

Thanks! I'm in the process of downloading everything and compiling a list of the md5 values for the THOR/7 HDX version for the write-up.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
No, it was only in a guide... so I used it. Maybe some1 else can give you more information.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] ricer333:
anyone else? I'm not sure what guide you're referring to. I would assume that using one of the other release sizes (stock, full, etc) would work just fine... right?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
Sorry, I dont know the guide anymore... I used the nano and I think the difference is that some apps aren't installed by default. E.g. Google Maps is missing, But you can download Google Maps via the Play Store...and everything works ;)
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Seanichigo:
@P4, so did u install CM11 on stock-rom in safestrap or in slot-rom1?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
At first I installed CM11 in the slot-rom11. But there is your battery life really bad. If you only want to use CM11 (what I recommend), then install CM11 on the stock-rom. But be sure to make a Backup of the stock-rom and copy it to your PC.

Installing CM11 on the stock-rom is risky. So read everything carfully. And always wait a little bid longer before you proceed. To be sure that the task has finished.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] ricer333:
p-4,

I'm going through the guide and making some notes. How did you download SuperSU? I'm currently on 4.5.2 and rooted with King Root. I also have Safe Strap v4 installed. I have all the ROMS and the various GApps, but don't have SuperSU downloaded yet as it is not available on the Amazon store. All the other downloads had the .apk files readily available.

Thanks!

EDIT: figured I would try Googling and I did find the following link that provides the 2..46 APK file: http://www.androidapksfree.com/apk/supersu-apk-latest-version-download-chainfire/
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
You dont need SuperSU as an apk, because you wont install it the normal way. (Add it to the installation process in Safestrap v4) Just download the .zip file from here: https://download.chainfire.eu/696/SuperSU/UPDATE-SuperSU-v2.46.zip.

And you dont need to unzip the file. Just copy it in the /sdcard folder.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] ricer333:
Thank you for this, I downloaded both. Have you installed the CM11 to the stock slot successfully or have you kept it in another slot?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
You should delete the other slots (ROM-Slot-1, ROM-Slot-2, ROM-Slot-3, ROM-Slot-4) and install CM11 on the stock slot.

I did this:

- delete the other slots (ROM-Slot-1, ROM-Slot-2, ROM-Slot-3, ROM-Slot-4)

- wipe the Stock-Slot (no advanced wipe!)

- install CM11 on the stock slot with Gapps and SuperSU
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] p-4:
Thanks for sharing your experience. And Congratulations on installing CM11 successfully.

You only see the "Delete"-Button if you installed something on that slot before.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] jwilson823:
Thank you @p-4 for your post.

I followed this exactly to get my Kindle Fire HDX 7" from Fire OS 4.5.5 to 4.5.2 and install cm11 in slot 1 of safestrap. cm11 looks awesome on this tablet. After spending hours reading and re-reading posts in here, the one thing I was not totally sure about was the rooting process.

To any other noobs like me who might be unsure, here is what worked for me:

I did not root when I rolled back to 3.2.8 but waited until I had rolled back up to 4.5.2

Installed Minimal ADB and Fastboot

Downloaded King Root from the link in your post to my PC.

Installed King Root on the Kindle from Minimal ADB using ADB Install Command - More detail here

I tried running King Root from the kindle but King Root informed me that an internet connection was required. As per all the warnings in this forum about bricking my device, I had wifi turned off so that the Kindle would not try grab an update back to 4.5.5.

I crossed my fingers :fingers-crossed: and connected to wifi. I ran King Root again from the Kindle. It took about two or three minutes for King Root to do its thing but the process completed successfully.

I quickly turned wifi off on the Kindle. It had already started to download an update. The update is a large file, however, so it should take more that a few minutes to download so you should have a while to get King Root to perform. I considered turning off wifi after King Root got started with the rooting process but was afraid this might mess things up.

I continued the process with block OTA (over-the-air updates). I used ES explorer on the Kindle to rename the specified file.

I wanted to retain the ability to boot the tablet into the Fire OS so I created slot 1 in Safestrap and installed cm11 to that slot. I created the slot with the default values. I did notice the high battery drain that others have reported and was thinking that maybe I could install the Fire OS in slot 1 and cm11 in the stock slot. Since the device will be mainly booted in cm11 I could avoid the high battery drain and still be able to boot to the Fire OS if I wanted to.

I did a backup of the Fire OS and tried to restore it to slot 1 but the process failed. Does anyone have a comment as to why this failed or if it is even possible?

Again, thanks to everyone in here that made this possible. I now have a reason to use my Kindle again :D
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] ricer333:
I do not know why the backup would have failed. I personally disliked Fire OS so much that I haven't looked back after putting CM11 in the stock slot.

Sorry I can't be of more assistance.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Nice detail in the above post. Should be helpful to others.

As for your question it is becoming increasingly evident that restoring a Safestrap v4 backup to a different slot is not a good idea. In your case (Stock -> Slot 1) it simply failed with no other consequences. However, restoring a slot 'x' backup to stock will render the device unbootable as key Safestrap files appear to be overwritten. The only resolution identified to date is to return the device to Amazon for replacement which only works during the warranty period.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] jwilson823:
So apparently in restoring backups it is vital that we restore the backup to the slot from which it was backed up. Especially when the stock slot is involved as a failed restore can lead to bricked device :crying: But flashing an image from .zip versus a restore is OK (yes/no?). So if we want Fire OS in slot 1 and cm11 in stock slot (cm11 in stock slot to maintain battery life) then we should be able to do this:

Flash 4.5.2 stock image to slot 1. (Making sure to disable OTA updates after install)

Flash cm11 to stock slot

What do you think?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
I strongly recommend against using secondary slots in SafeStrap v4. While v4 has the ability to provide multi-boot capability the developers primary intent was to support the use of non-stock roms on locked devices. Enabling/using secondary slots adds layers of complexity that can lead to a non-recoverable device should critical Safestrap components become damaged. Under no circumstance would I restore a system backup created in Safestrap v4 to a different slot (stock or otherwise). Also note native TWRP backups are not compatible with Safestrap.

Setting the conservative babble aside the procedure and accompany links in your OP should work.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] EncryptedCurse:
I'm not sure what you're referring to here — I'd say Safestrap does quite the opposite. In the event that something does go wrong with the secondary slot, you still have the ability to boot into regular FireOS.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
I fully agree with Safestrap v3 as FireOS is typically left in the primary/stock slot and secondary slots are fully operational. However, Safestrap v4 and the roms available for it present a different beast.

Operationally having a secondary slot preloaded with a working rom offers a measure of comfort plus speedy access to functioning environment should something go wrong with the primary environment ... especially if no other host is available. In that case CM11 should probably occupy a secondary slot as it is the only HDX rom that can establish a WiFi connection in SS v4. From a device recoverability perspective simply leaving a flashable rom image in a high level directory accomplishes the same thing with a much smaller footprint (a few hundred MB vs a few GB for a full blown slot).

Issues with secondary slots in v4:

- wifi only works with CM11

- high battery consumption and poor performance when active (likely due to ineffective cpu throttling and utilization of only 2 of 4 cores)

- high probability of bricking device if a backup from a secondary slot is inadvertently restored to the primary slot or vice versa

....n.b. #1: secondary slots backups should be inter-interchangeable among secondary slots (just say'in; not sure why one would want to do this)

....n.b. #2: the same backup/restore issue likely exists with Safestrap v3; however, there was never cause to restore a secondary slot backup to the primary/stock slot

- increased potential for user error if there is not full awareness of which slot is active while in Safestrap recovery

As with any tool Safestrap v4 is completely safe when used in strict conformance with its capabilities and full awareness of its liabilities. Given none of us are perfect my current view is only the primary/stock slot should be used on a locked HDX (those with an unlocked bootloader could potentially recover from a borked Safestrap install).
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] monkeymind:
Can I use this method to roll back and update my kindle fire hd 7 os 4.5.5?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
Yes - information in previously quoted post remains valid as of today (see date stamp).
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] EncryptedCurse:
Not sure if it was just a typo, but this information only applies to the HDX.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] monkeymind:
Was just about to check that - so this won't work for the HD?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] EncryptedCurse:
If this is the 2014 HD 7 we're talking about, you're looking for this forum: http://xdaforums.com/fire-hd
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] bbert:
Hi, because there are so many different options here, may I ask my question?

My device is:

HDX 7

Safestrap 3.75

Stock Rom = 13.3.2.4

Slot 1 = Thor Rom V1.0.1 (which is a great ROM)

1. Can I go back from 13.3.2.4 to 13.3.2.1 version from which CM12 can be installed?

2. If not, what would for me be the procedure to go o CM 11 oder 4.05?

Thank you in advance

Hubert
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Cl4ncy:
You can downgrade to 3.1.0 using the downgrade images provided by [MENTION=5749760]ggow[/MENTION]. Check page 2 here (page 1 is about 3.2.5/3.2.6 users who can NOT use these images!). Then flash TWRP, update the bootloader to 3.2.3.2, unlock the bootloader, then use ROM of your choice.

Read the info, ask if you've any questions before you brick your HDX! Note that factory reset in Safestrap means the standard wipe only (wipes data, cache & dalvik only)! Do NOT go into advanced wipe, do NOT wipe System!

Be sure to make backups of your current system (even if you don't need it anymore), remove the secondary slot(s) in Safestrap to get back the storage used by it, and after installation of TWRP create a backup of your Fire OS before you flash any custom ROM.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] bbert:
Thank you, this sounds very good!
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] bbert:
Sorry, I was not able to do the steps described above, because shortly after your answer I lost my device. Now I found it again and would like to ask, if the way described above is still the right way, or whether today there is an easier way.

Thank's in advance
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Cl4ncy:
There's no easier way for the downgrade from 3.2.4, unlocking is easier, at least if the one-click-solution works for you. ;)
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] bbert:
Thx, but how can I delete Safestrap 3.75 from Rollback Image 13.3.0.9 without the Safestrap app installed nor a file explorer?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Cl4ncy:
After flashing the downgrade image (which is a modified 3.2.4 that claims to be 3.0.9 in order to get the "update" to 3.1.0 working) Safestrap will be gone.

Just be sure to keep WLAN off/flight mode active during the process, you don't want to get updated by Amazon!

After up-/downgrading to 3.1.0 be sure to re-root and disable OTA via HDX Toolkit. Then install TWRP, update the bootloader to 3.2.3.2, unlock the bootloader, create a backup of your current Fire OS and move it to your PC, then install ROM of your choice.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] bbert:
I "downgraded" to the downgrade image (that claims to be 3.0.9) but the Safestrap recovery is still visible (but disabled) during boot and can be enabled. Ignore??
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Cl4ncy:
Sorry, I mixed some things up here. Safestrap will be gone after updating to 3.1.0.

You must follow the procedure mentioned here, so after you flashed the downgrade 3.2.4/3.0.9 image you must do a factory reset in Safestrap now, which is the standard wipe only (wipes cache, data & dalvik only), i.e. do NOT go into advanced wipe, do NOT wipe System!

Then boot the modified 3.2.4, do NOT connect to WLAN, keep it off/flight mode active!

Copy the 3.1.0 update to \sdcard, and initiate update from device options as mentioned in the thread linked above.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
[MENTION=6815340]Cl4ncy[/MENTION]

Are you certain the 'containers' (for lack of a better term) used by Safestrap secondary slots, if present, will be deleted? Seems like they would survive a FireOS update as externally they have the appearance of large files on sdcard. But I could be way off here...
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Cl4ncy:
Good point, I usually recommend to remove secondary slots first, so the space used by them will be free again. Otherwise you must delete them manually in some directory I don't remember atm. It's somewhere in a thread here, involving you. ;)
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] DB126:
I'll find it if needed. I believe the detail was provided by [MENTION=3370844]jeryll[/MENTION] or [MENTION=5940066]EncryptedCurse[/MENTION] if not mistaken.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] bbert:
So, I am on 3.1.0 and rooted. OTA disabled. Flashify is installed. The next step would be TWRP 2.8.7.0 to install the bootlader?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Cl4ncy:
Yes, the 3.2.3.2 bootloader is here.

After that you can unlock it, try the one-click-solution first.
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] bbert:
1-click showed in the log on the hdx-display: "unlock code is correct". Maybe, it worked?
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] Cl4ncy:
Did it look like this? You're unlocked then. Time to create a backup of your current Fire OS, move it to your PC, and then install a ROM of your choice. Read the installation notes and requirements carefully!
[Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot] bbert:
Yes, plus some more lines (but no error). Thanks a lot for your help. Finally there are about 4 Roms here, mostly from ggow. The Cm11 seems stable.
[Verizon Samsung Galaxy S6 Edge] kenohki88:
So I'm running Clean ROM been working just fine since I flashed it around the beginning of summer and just yesterday my MMS isn't downloading.. I turn off my data at night and back on when I wake up seems like I'll get one MMS come through and then the rest fail annoying cause I have group chats that won't download.. Anyone have a solution? Damn that's twice I post in here in a couple days haha
[Verizon Samsung Galaxy S6 Edge] Snowby123:
For me, with most messaging apps though not all, I need to be connected to lte in order for the mms to come through. I personally hate it.
[Verizon Samsung Galaxy S6 Edge] kenohki88:
Yes I cycled through WiFi or LTE but it wouldn't work... BUT it started working late this morning for some reason... Go figure
[T-Mobile Samsung Galaxy S 5] liptoneg:
Hello, at the start of this thread, i have to aplogize You for my English, but im only 17y Old and im from Poland, so i have Little problem, i've tried to root my Sgs5 sm-g900f but when im going into bootloader i have some kind of lag, odin failing to root because Phone lagging when odin doing his job, on Phone i See only Little bar, and i need to take baterry off my Phone, can someone help me?
[G4 General] phineous:
I think blocking lgsetupwizard may cause problems if the phone is factory reset and needs to run setup again.

I'm not positive this is true, but the thought occurred to me after reading several posts from people stuck on setup.
[G4 General] blake_spector:
I did NOT block SetupWizard.apk (com.google.android.setupwizard) - I have done factory resets on my phone during the process of compiling this list without any problems.
[Zenfone 2 Laser Q&A, Help & Troubleshooting] hekermeker:
Has anybody managed to root the Asus Zenfone 2 Laser ? ZE00D variant. Thank you
[Zenfone 2 Laser Q&A, Help & Troubleshooting] cLeAv0:
None yet i think. Can you access our bootloader by pressing power + volume up button?
[Zenfone 2 Laser Q&A, Help & Troubleshooting] hekermeker:
Unfortunately no. Tried different methods but had no success.
[Zenfone 2 Laser Q&A, Help & Troubleshooting] cLeAv0:
I don't get why ze550kl can access their bootloader but ze500kl can't. This will really make it hard for devs to tinker around our phone. I hope ASUS will release some kind of bootloader unlock tool.
[Zenfone 2 Laser Q&A, Help & Troubleshooting] kurukoi:
I can access bootloader when presing volume up and power, what i will do to root my phone
[Zenfone 2 Laser Q&A, Help & Troubleshooting] cLeAv0:
Can you give me a picture on what it looks like? I can't access the bootloader on my device.
[Zenfone 2 Laser Q&A, Help & Troubleshooting] rajlko:
ze550kl can not access their bootloader .