yashsingh1/xdaforums huggingface dataset:
[Kindle Fire HDX 7" & 8.9" General] Varlock:
Many thanks ONYXis, that worked perfectly! I too can confirm that it worked and I have rolled back from 4.5.3 to 3.2.8.

Can hardly believe it was that easy. Now too look around some more to find out what I can do now I am finally rooted.

Thanks for your help.

---------- Post added at 09:52 PM ---------- Previous post was at 09:44 PM ----------

Just had a thought, as we effectively rolled back our devices, does that mean we will NOT get ota updates from Amazon now? It would be pretty handy if they didn't work oat now. Save is from worrying about losing root access :)
[Kindle Fire HDX 7" & 8.9" General] Raptor270:
has anyone tried this on 4.5.2?
[Kindle Fire HDX 7" & 8.9" General] AmazonLeaker:
Kudos !!!!!

Wish same can be done with Apollo but there seems no point as there's no TWRP / unlocked bootloader.

I'm not trying to point finger at your work just saying if bootloader unlock can be achieved for Thor or Apollo over 13.3.4.8 ~ ish versions....

edit : please add "Thor" to your title [emoji1]
[Kindle Fire HDX 7" & 8.9" General] ish.org:
thank you very much

Thank you for ONYXis, I could roll back from 13.4.5.3 to 13.3.2.8 with this uploaded file.
[Kindle Fire HDX 7" & 8.9" General] dazza7111:
nice

exellent it works, but now its wiped lol never mind here comes root!
[Kindle Fire HDX 7" & 8.9" General] titanworm:
Can I rollback from 4.5.3 to 3.2.8, then upgrade to 4.5.2 to root, 'cause I only need Gapps ?
[Kindle Fire HDX 7" & 8.9" General] ONYXis:
yes, you can
[Kindle Fire HDX 7" & 8.9" General] neils31:
ok I am also back to 13.3.2.8 :) thank you.

its been a few years since I did anything like this, in fact since I got a nexus 7 (2012), I am now downloading stock rom 4.5.2 which i need to install (download seems to be very slow (10 hours to go !!)

then I try to root
[Kindle Fire HDX 7" & 8.9" General] dimi5:
apollo?

any hope to get the corresponding apollo update?
[Kindle Fire HDX 7" & 8.9" General] ONYXis:
I need someone who already roolbacked pming me. we could try to catch.
[Kindle Fire HDX 7" & 8.9" General] DB126:
Love the stone heart comment ...

Regarding update vulnerability - I don't think anyone knows for sure. A few theories have been bantered about but if were easy/doable one of the devs would have surely gone after it. Nothing more rewarding than defeating an uncrackable nut.
[Kindle Fire HDX 7" & 8.9" General] guink666:
Root?

Does downgrading to 3.2.8 also give me root or do I need to do more? also after achieving root would that be lost when upgrading back to 4.5.2?
[Kindle Fire HDX 7" & 8.9" General] DB126:
You willl need to root after rolling back to 3.2.8 (suggest towelroot) and again after upgrading to 4.5.2.

In recent weeks several individuals have permanently bricked their devices after rolling back to 3.2.8. In each case the device received an unsolicited over-the-air (OTA) update from Amazon shortly after connecting to wifi. You'll need to block OTA (via HDX Toolkit) or keep wifi off and perform subsequent steps via adb. Note you will need to reenable OTA just prior to 4.5.2 upgrade; keep wifi off.

Also recognize the increasing difficulty of getting Google components (ie Google Play Services and the Play Store) to work correctly on 4.5.2 even when rooted. I don't see this getting better in the near term although some crafty individual may eventually come up with a stable long term solution. At present it's a moving target with GPS updates rolling out and Android M on the horizon.

I raise these flags as there is significant risks associated the path you are about to embark on with consequences ranging from a bit of inconveience to an unrecoverable hard brick of your device. Go in with eyes open. Good luck.
[Kindle Fire HDX 7" & 8.9" General] guink666:
Aww Man, I wish I would have known this an hour earlier. Totally happened to me, now i have a bricked device that wont turn on. You said in your reply that this is a permanent brick? Is there no solution at all to get this working again?
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
Will it not power on at all? Connect it to a computer and try to power it on. Plug it in to the wall (with supplied charger) and let it charge a while. Then, hold down the power button for two minutes. Finally try to power it back on. These could all fix other reasons for this symptom, but it is a huge long shot. Sorry. Things don't look too good.

Edit, for those who find this. Davey mentioned it but a lot of people miss it, in version 3.x.x.x blocking updates is different than in 4.x.x.x the new version of renaming the file will not work. Use the HDX toolkit instead.
[Kindle Fire HDX 7" & 8.9" General] DB126:
Yikes - sorry this happened. What did you do just prior to the device becoming non-responsive?

See suggestions from lekofraggle in a previous post. Obviously if the device won't power-up you are done. If it does turn on then there a some long shot options. Hopefully you got a chance to enable adb before it went down.
[Kindle Fire HDX 7" & 8.9" General] guink666:
I ran the downgrade file and it was fine for awhile. I was reading through some other forums and picked it back up about 15mins later and nothing. Wont power up. plugged into a computer device manager lists it as QHSUSB_BULK
[Kindle Fire HDX 7" & 8.9" General] DB126:
Sequence of events and device symptoms strongly suggest device received and attempted to process an OTA update. To date no one has recovered from this type of brick as there is no way to communicate with the device. Sorry this happened to you.
[Kindle Fire HDX 7" & 8.9" General] eureca:
Hi thanks for the tutorial on downgrading/upgrading. I was wondering though I am now on 4.5.2 and I want to root. I know I can turn my wifi on and download ES file explorer to install the root apk. However if I turn on the wifi would I be in danger of a automatic OTA update? If so how do I get a file manager installed without allowing a OTA update before I can disable OTA updates?
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
Yes, that is an issue. You can use a computer and adb to install es file explorer, or you can risk going online.
[Kindle Fire HDX 7" & 8.9" General] eureca:
Thanks i'll try to get ADB running. Haven't used that in a while.
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
Once you get root be aware that the command adb install can be dangerous with the wrong app.
[Kindle Fire HDX 7" & 8.9" General] eureca:
Ok thanks for that info. I installed ES file explorer with ADB. I then used that to install the root and everything seems to be working fine after disabling OTA updates and connecting to wifi.
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
Excellent. I am glad it all worked out smoothly.
[Kindle Fire HDX 7" & 8.9" General] cheesecoffee:
slight issue from a noob's perspective

So, I have the downgrade for 3.2.8 in my kindle fire's directory, ready to be installed. Can anyone go into detail about how to backup local data? I don't want to lose what I have.
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
You won't. It does not erase your sdcard. It works like a regular update.
[Kindle Fire HDX 7" & 8.9" General] DB126:
Be aware a number of devices have been hard bricked (no chance of recovery) shortly after downgrading to 3.2.8 apparently due to an OTA (over-the-air) update from Amazon that gets delivered shortly after booting up 3.2.8. The best and only reliable method for blocking OTAs on Fire OS 3.x is via HDX toolkit. Other options include keeping wif disabled, enabling airplane mode and renaming the otacerts file; all have proven ineffective for various reasons (including human error).

You may also want to wait for the Safestrap version of Nexus 4.x to become available. This holds the promise of being able to run native Fire OS for the things it does well (eg: access to prime content) or booting into a rooted version of KitKat that offers full access to Google Play and a near AOSP experience. Should also mitigate many hard/soft bricking opportunities that exist with the current rollback/upgrade/root/freeze approach. You can track progress in this thread.
[Kindle Fire HDX 7" & 8.9" General] cheesecoffee:
Yes, I immediately disabled wi-fi and turned on airplane mode. (Even turned off bluetooth just to be safe :P)

So, as I am currently on 3.2.8, which version should I upgrade back to? 4.5.2?
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
If you want to run the new version of safestrap when it is released, go to 4.5.2.
[Kindle Fire HDX 7" & 8.9" General] juntha2:
Install apk manually

Hello,

I could downgrade from 4.5.4 to 3.2.8 and upgrade to 4.5.2 successfully , but I was stoped when I wanted to root my e Fire HDX. I downloaded cve20147911.apk and copied them to device via usb, but how can I install them ? I don't know how install an apk file manually....Kindl

If I connect my tablet to internet to download and install ES File Manager for example without first disabling OTA before, device update is performed again to the lastest version... I turn around in circles ....

Thank you in advance for your answers...
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
Congrats on the downgrade. That was risky coming from 4.5.4 as I am not sure anyone has done it before. However, the answer to your question is simple, but be careful. Many people have bricked their devices without much knowledge about how to use root successfully. If you modify the wrong file, you will be on trouble.

Having said that, though these directions are elsewhere, here you go.

If you can get adb setup on your computer, set that up and use it to install es file explorer. They have it on their website.

The command is

adb install

You need to enable adb from the hidden developer settings on the kindle first. Go to settings, device options, then click your serial number many times. While you are there, enable install of unknown sources.

If that is too much, you could setup a web server in your house and disconnect the internet. Then use silk to open the file.

Either way, you have to do a bit of work.

Good luck

~Leko
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
can't update unless connected to wifi?

Hello, I have a kindle fire HDX running on os 4.5.4 and I have been trying to rollback my kindle but I think because I have wifi on, it's not recognizing the file and I cannot update with no wifi on because it gives me a message but does not scan, can anyone help?
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
Where did you put the rollback file? You need to understand how risky rolling back is right now.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
I put the rollback file in the storage/emulated/0
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
Did you go into settings and click check for update? And did you download the right bin file?

13.3.2.8 for 7" Thor

14.3.2.8 for 9" Apollo

~Leko
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
I did check for update but it keeps on saying no updates found and when I try to turn off the WiFi and check for update it gives me a message saying that I must be connected to the internet
[Kindle Fire HDX 7" & 8.9" General] DB126:
Behavior suggests the device is not recognizing the update file (hence request for wifi to be enabled) which seems obvious but hopefully will allow you to focus your efforts.

Thoughts:

- make sure you have the correct file (sorry - had to include that)

- delete the update file and download a fresh copy - preferably from a different mirror

- insure the update file is located in the proper directory (sorry again)

- verify the update file MD5 on your device. You can find values for both 13.x and 14.x by searching this thread. There are many tools for doing this; I've had good luck with "Hash Droid"

- if you ever applied an OTA blocker use the same tool to re-enable OTA

- check if your recovery is functioning correctly as it is needed to process rollbacks/upgrades. Power your device down then restart by pressing power + vol-up (volume up). Release power when the grey logo appears followed by vol-up a few seconds later. After a short wait you should be presented with a screen that has two options: reset and reboot. Simply reboot.

There is a final option that is unproven on 3.2.8 and thus carries some risk of corrupting your device including a 'hard' brick. Some posters have reported a 'factory reset' from within recovery was necessary before their device would recognize rollback/update files. However, this was for versions xx.3.1.0 - xx.3.1.6. I would be loath to try it on anything above 3.2.6 given the risks involved.

Good luck.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
I got it to recognise the file but it keeps on saying the update is not valid, and I've tried both of the downloads ( kindle fire HDX 3rd gen)
[Kindle Fire HDX 7" & 8.9" General] DB126:
Q: 7: (Thor) or 8.9" (Apollo/Saturn). If the latter when did your purchase? If it's a newer model (Saturn w/2.5 GHz CPU released 3Q14) then you can't roll back. Otherwise the message you are receiving is similar to those who had to do a factory reset before the file was recognized/accepted. As previously mentioned I don't recommend that approach as it has not been tested above 3.2.6.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
Should I wait until there is a safe method or take the risk?
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
If you are not rooted, I do not think there is much risk in doing a factory reset. That is especially if you are still under warranty. That is what it is there for. However, there is risk in forcing a device to load an incompatible rollback file. Although, I do not think that is what the factory reset does. Be sure you have a device which can roll back first though, because you will probably lose some data and apps.
[Kindle Fire HDX 7" & 8.9" General] kindle7-829:
Once more, with clarity....

Complete Android Noob, was recently gifted a Kindle Fire HDX 7". I have verified that it's running 4.5.4, and from what I can gather, that is as yet unbroken? Is that correct?
[Kindle Fire HDX 7" & 8.9" General] DB126:
Effectively, yes. There is a way to downgrade to 4.5.2 and then root but the procedure can be dangerous and leave you with a non-functioning device (hard brick). My suggestion is to enjoy your device for what it is while waiting for better options.

---------- Post added at 10:01 PM ---------- Previous post was at 09:54 PM ----------

Welp, first I would verify your device is eligible to rollback per my previous post. If eligible then you have to decide if the risk is worth it. Another poster pointed out that the risks associated with a factory reset are relatively low if you are not already rooted. I tend to agree (forget you were not rooted). Just make sure your device is compatible with the rollback file; if not you are begging for trouble.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
Is there a way to tell you about my kindle (ima noob) all I know is that it's a 3rd gen hdx running 4.5.4 but something weird happens a few days ago, I had it plugged into my computer and it detected the same update as the one I have on, and being stupid enough and forgetting the ota, it updated, and I don't know if that's what's making files invalid or something else, but if I do something, I want to be at least 90 percent sure I'm safe doing this.
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
The ota update you mention is normal. That is how Amazon does small incremental updates. It is theoretically possible that that update blocked the rollback, but highly doubtful imo. I feel that if they were concerned about the rollback, they would have blocked it in the original 4.5.4 release (which I thought they did however a user claims to have used this file to roll back from 4.5.4 successfully). So, do you have a 7" or an 8.9" If you have a 7" you cannot have a saturn. If you have an 8.9" you could have a saturn. I do not know how to tell without root. Sorry.
[Kindle Fire HDX 7" & 8.9" General] DB126:
There are many free device info apps; try "CPU Z" which is available in the Amazon store. Look at the header on the first tab (soc). If the CPU speed is above 2.15 GHz then you have a Saturn and it can not be rolled back.
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
Thanks Davey. I thought you needed root to use them all. That's good to know. Not to get people's hopes up, and I could be totally wrong as I forget the source, but I actually believe I read somewhere that for a time, Amazon was rolling back Saturns, but not to 3.x, only to 4.1.0 or something like that. We never captured the rollback, so you would have to ask them (and there is currently much less probability they would roll you back). But, you could try.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
Yet amazon has messed me up again with confusion, it's at the exact speed you said, not above not less:mad:
[Kindle Fire HDX 7" & 8.9" General] DB126:
That's good as it indicates your device (in theory) can be rolled back. Next question is size: do you have a small 7" HDX or the larger 8.9" model? Sorry if I missed this in earlier posts.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
I DID IT I DOWNGRADED 4.5.4 AND ROOTED IT. Now can anybody give me reccomendable ways of preventing ota, because I did the rename thing(ota file but I don't feel 100% safe) I have a usb cable and computer, and if it takes not long to do it, tell me please

​
[Kindle Fire HDX 7" & 8.9" General] DB126:
Renaming the otacerts file will NOT prevent automatic upgrades! Keep wifi off until a proper OTA block is in place. Use HDX toolkit (tethered) to block OTA. Don't mess with any of the other options. You'll also need to restore the file you changed to its original name. Suggest doing that

before

running HDX toolkit.

Alternatively, you can copy the 4.5.2 bin file to your Kindle via tether and upgrade without blocking OTA. Just make sure wifi stays off or you may get hit with an amazon upgrade that WILL permanently brick your device.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
Also thanks for recommending that app, it tells you what version you are, and thats what helped me (thor)
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
It says ota is blocked, does that mean I'm good?
[Kindle Fire HDX 7" & 8.9" General] DB126:
If the message came from HDX toolbox (displayed on your PC screen) then you should be good. That said, if you are comfortable copying the 4.5.2 update file to your Kindle via tether do that instead of reenabling wifi and downloading directly. I'm a belt-and-suspenders type wack so tend to err on the side of caution.

Also, you don't have to upgrade. You could install Safestrap and Nexus 2.0.5 which will give you a very nice Jelly Bean experience with full access to the Google Play store. You can even toggle back to Fire OS if desired. Work is ongoing on a KitKat version of Nexus that will run under Safestrap. That should be ready in a couple weeks if all goes well.

If you do upgrade to 4.5.2 and want access to Google Play be prepared for some issues. Long story short Google and Amazon don't play well together (no pun intended) and probably never will.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
How do I updgrade to 4.5.2, just copy file over and do what I did before? (And I bet that pun earlier was definitely intended;))
[Kindle Fire HDX 7" & 8.9" General] DB126:
Yup - firmwares available here. Keep in mind there is risk involved with manually upgrading. While uneventful for most there have been a few issues reported ranging from minor annoyances to full bricks. Keep in mind you are working with a rooted device (no protections) with a locked bootloader and no recovery net.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
So I could unroot

and it would be safer? And I already but some stuff on my kindle so will I loose it again?
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
Rename deviceota.apk has worked for me on all iterations of 4.x.x. If you want to check, all you have to do is check for an update. You will see it will fail. It does not work on 3.x.x
[Kindle Fire HDX 7" & 8.9" General] DB126:
Upgrading should leave your personal apps/files intact. And yes, unrooting will restore some built-in protections (although not a 100% guarantee). You will need to reenable OTA before attempting the upgrade; that needs to be done while rooted.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
What's,the benefits of that update and how do I get ota back?
[Kindle Fire HDX 7" & 8.9" General] DB126:
Benefit is being on relatively recent version of Fire OS which contains new/upgraded capabilities (read about it on Amazon's site) and the usual array of incremental improvements and fixes. 3.2.8 is based on an aging version of Android that does not support some newer apps.

You can restore OTA via HDX toolkit; look for the option.

Regardless of choice you will still be on Fire OS which has strengths/weakness. The only way to get a true 'google like' experience is to install a different operating system (rom) and at present that can not be done on 4.5.2 (although a solution is in the works).
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
If you are on 3.2.8, you can run the current safestrap. It is an older Android build though, and if they push an update, your device could be ruined.

4.5.2 runs kitkat (as opposed to Jellybean) and is less risky if you accidentally update. You will have to wait a bit for safestrap, but it is being worked on.

And, you disable updates differently between the two.
[Kindle Fire HDX 7" & 8.9" General] FaintSkill:
Can I get Google play store on my current version? ( I used the thor file to rollback)

That's all I really want at this moment.
[Kindle Fire HDX 7" & 8.9" General] DB126:
You can - but it will be unreliable unless you switch to a different rom. That means a fresh build, new apps and reloading/restoring data. If you still want to install the Play Store on 3.2.8 I will need to hand you off to someone else as that's a path I have chosen not to pursue. Others have with varying results.
[Kindle Fire HDX 7" & 8.9" General] lekofraggle:
It is easy to run the play store on both 3.2.8 and 4.5.2 with one huge caveat. You need to force the device to use an older google play services. This means two things.

1)You have to do a bit of coding so Google does not update it on you.

2) Some Gapps will either whine about the outdated GPS (maps, google +), or not work at all (gmail).

It should be noted that to install the play store on stock, you have to install and copy and paste apps in places which could brick your device if you do not set permissions effectively.

Good luck.

~Leko
[Kindle Fire HDX 7" & 8.9" General] JaBoyy23:
4.5.4

Is it possible I could rollback to 13.3.2.8 if I have 4.5.4
[Kindle Fire HDX 7" & 8.9" General] DB126:
Theoretically yes - but there are few real life data points to accurately assess viability. Rolling back also carries the risk of hard bricking your device should you receive an OTA update while on 3.2.8. Bootloader remains locked and you have no real recovery options should something go wrong.

Assuming you want to roll back to either: 1) upgrade to 4.5.2, root and install Google stuff; or 2) remain at 3.2.8 and run a different rom of which there is only one choice. A third and perhaps best option is to wait for a variation of the evolving Nexus v4 rom to be released for Fire OS 4.x. I have used an early build on Safestrap v4 (also under development); works well but still has some issues to resolve. Biggest benefit is you get a fully functional 'android' tablet and not a franken-kindle that needs constant attention. You can also toggle back to FireOS which works best with the Amazon ecosystem. Give it a month - developer has a solid reputation.
[Kindle Fire HDX 7" & 8.9" General] JaBoyy23:
how would I rollback to 4.5.2 if I have 4.5.4 kindle fire HDX 7" thank you

:confused:
[Kindle Fire HDX 7" & 8.9" General] DB126:
You have to rollback to 3.2.8 then upgrade to 4.5.2. It requires a series of steps that are not for the faint of heart and contain the brick risks noted in my original post. You will need to do some reading to figure out the procedure. Everything you need is within this thread.

My suggestion: Don't mess with your Kindle unless you are willing to toss it in the trash if things go wrong.