yashsingh1/xdaforums huggingface dataset:
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Did you take it a step further and wipe system? That should remove all remnants of your existing rom. If the problem persists try flashing CM12.1 followed by Nexus. A few posters have reported this intermediate step is helpful going to CM13 (different symptoms). Might help in your efforts to 'rollback' to Nexus.

Assuming you didn't create a backup of whatever build you had before CM13...
[Kindle Fire HDX 7" & 8.9" Original Android Develop] machochico:
Not having the best battery life on my Thor with this ROM (02.28.16 build), about 100% over 20 hours with maybe 5 hours active use. Much less than when using the old FireOS. GSAM Battery stats show "Phone Radio" as the biggest battery sap. Don't have the LTE version, and I've turned on Airplane mode, then Wifi on, but still similar drain. Is the battery app mis-reporting the true battery drain cause? Anybody else

I dirty flashed this ROM, but will give the clean install a try...
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Your post history doesn't indicate whether you unlocked the bootloader. If not you are likely using Safetrap v4. If true did you install Nexus to the stock or secondary slot (eg: slot 1). Highly recommended custom roms be installed in the stock slot (overwriting FireOS) to avoid a host of issues including poor performance (only 2 of 4 cores active) and bettery life (two cores always run at 100%; device never deep sleeps).

If you unlocked and flashed via native TWRP then your experience does not mirror mine. Battery life is on par with other custom roms and better than FireOS in stock configuration (FireOS is capabable of being efficient; just have to kill unnecessary background processes/services). Typical draw rates are <1% per hour while sleeping; 10-12% per hour while doing modest tasks like email at 30% screen brightness.

The phone radio anomaly is characteristic of the immediate predecessor to this ROM (v4.0.3-4.0.5); I have not seen it on the newer builds.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] rurika:
I was on FireOS 14.3.2.3 rooted and unlocked bootloader. (have image recovery on this state)

Well, I even tried wipe system but still got the same error.

Actually, I tried this rom because I had rotation issue on CM-13 but that's ok now.

Thanks for your suggestion anyway.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Sorry it didn't work out. Heard about this problem before but can not immediately find related posts to see if it was resolved. I seem to recall CM was involved with that one too. I'll keep poking around. Realize you don't need it now but bugs me that the block persists through native twrp wipes. Curious - did you reboot recovery after the system wipe? On occasion I experience twrp wackiness on hdx devices; a reboot always seems to clear the issue.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
I am using HDX Nexus ROM v4.0.5.

Is this the ROM I am to use for replacement as other one been discontinued?

I have safestrap do I dirty install this ROM with GAPPS or how should I install?

Link to old ROM thread.

http://xdaforums.com/kindle-fire-hd...xus-v4-0-1-t3125808/post66260318#post66260318
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Yes. Read OP and a few posts beyond. If journey began with FireOS 4.5.2 you will need to update to 4.5.5.1 before flashing this rom. Bit of work getting there but not hugely difficult. Post back if you need help. Plan on a 3-4 hour block; could go quicker depending on experience.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
How would I know what fire os I have now I know when I first had my HDX had to do a huge rollback to get it working but no clue how that was done now,

How do I know what FireOS I have? If you mean like a dual boot I have none just using the Nexus ROM.

Also like to replace Safestrap with TWRP as thats what have on other devices so how can I do that?

I see Safestrap 4.01 is TWRP 2.7.0.1 so is that good or is there a newer version like 3.0 available?
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
From the information provided:

- your device was running FireOS 4.5.2 prior to installing Safestrap and Nexus v4.0.x

- Safestrap v4 is your only option at present; can't boot/install TWRP

Need to decide if you have the stomach for making the jump to this rom. It will look and behave similarly to what you have now. Location services will work but not many other new features. However, this build will continue to receive security and other updates.

Risk is low; work effort modest. 3-4 hours might be conservative if you don't have a lot of experience.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
My whole thing was Google Playstore stopped working was told ROW was discontinued and I thought this was the updated ROM for me to use.

So not sure what to do now.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Random Playstore failures can be a PiTA to correct which is why I suggested updating. Not willing to troubleshoot on Nexus 4.0.5 as this has not been a common problem.

You could try reflashing (reinstalling) the GAaps package that is liked in the OP of the Nexus 4.0.5 thread. Might so the trick.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] machochico:
Thanks for the reply! I unlocked the bootloader (using the oneclick by draxie), and installed TWRP (2.8.7 I think), and have since performed the factory reset and performed a clean install. Still not better battery than FireOS, but not bad. The sleep time is definitely <1%, and I get about 6 hours screen time. I did notice that the screen at its lowest brightness was not as low as FireOS, and I have been trying a few other dimmer apps (like dimly), and haven't seen much improvement yet.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
You can gain full control over brightness levels via Xposed Framework and the Gravitybox or Minimum Brightness modules. The former is single purpose while the latter bring a wealth of customization options to Nexus and other AOSP roms. Default minimum brightness on HDX Thor is 20%. I permit manual reduction to 5% and pre-turnoff dim to 1%. Works great!
[Kindle Fire HDX 7" & 8.9" Original Android Develop] rootnooby:
Been using the updated rom for a few weeks and it has been very stable for me. All the support on this forum has kept this tablet a daily driver for me.

Can someone post a to the correct version of xposed for this tablet so I can take the next steps with customization?

Much appreciated!
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
There's a thread that will help with Xposed on this device. Not a fan of posting code; should always grab from the source.

http://xdaforums.com/amazon-fire/general/how-to-install-xposed-firmware-custom-t3239343/page1
[Kindle Fire HDX 7" & 8.9" Original Android Develop] ggow:
New Build is Up

- Dated 09 Apr 2016

- April 2016 Security Patch Level
[Kindle Fire HDX 7" & 8.9" Original Android Develop] paragon1a:
Just rooted my Apollo 4.5.5.1, installed Safestrap v4, and Fire Nexus 20160228 two days ago. Everything ran smoothly. Only two things were unexpected, i.e. the ROM contains no camera or clock applications. I managed to install clock from Play Store, but all camera apps I tried failed to work.

Can someone kindly confirm if this is really the case for this ROM? What about OTG?

I have just updated to Fire Nexus 20160409 too without any issues, but still no camera.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] ggow:
I use snap camera HDR which seems to work fine

OTG has been answered many times and it's a no go on the HDX devices at all.

I stripped out a lot of apps to lean the ROM down to make it more customisable.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] paragon1a:
Thanks ! I installed Snap Camera HDR and it works ! Save me the trouble of switching over to cm11 for trial. Will stick with Fire Nexus instead. I notice that only 473MB out of 1.2GB is filled in the System partition. What customizations do you have in mind?
[Kindle Fire HDX 7" & 8.9" Original Android Develop] ggow:
No customisation of the ROM will be done by me. The idea is to leave it as-is so that Xposed can be used.

Install Xposed then look up gravitybox. That will get you started.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] m00head:
I got this version of the Google Camera app working on the AOSP ROM for the Amazon Fire 7" 2015 (ford) - maybe it will work on this AOSP ROM too:

However, this issue was later reported by [MENTION=7375347]aaron1a12[/MENTION]:
[Kindle Fire HDX 7" & 8.9" Original Android Develop] sillydawg:
I have acouple a silly questions .Well first let me say Thank You...how rude of me.

Butt Im wonderin where I put the ROM at...sd/card right?

and second Its cool to use Fire Nexus ROM for THOR..right?

Agagin THANK YOU
[Kindle Fire HDX 7" & 8.9" Original Android Develop] paragon1a:
Thanks for your advice. I downloaded the camera app from the Play Store link and the version is 2.5.052. A brief trial shows Camera and Video work but not Photo Sphere and Panorama shots.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] m00head:
To use the panorama feature the device needs to have a gyroscope and at least 1GB of RAM to be able to use the photo sphere feature, but all of the HDX devices meet both of those requirements:

Use Google Camera - Take a panorama, wide-angle, or fisheye photo

Use Google Camera - Create a photo sphere

Device and Feature Specifications
[Kindle Fire HDX 7" & 8.9" Original Android Develop] paragon1a:
Sorry for the misinformation. I was not too familiar with the PhotoSphere and Panorama functions. Tried them again and found them both working.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] slater_g:
Just wanted to confirm that LTE works, but it takes a few minutes for the tablet (Apollo) to initialize the baseband. APN has to be set manually.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] paragon1a:
Can someone tell me what 5Ghz wifi bands Apollo (HDX 8.9) supports? When mine was on stock 4.5.5.1, only 2.4GHz wifi worked. After moving over to Fire Nexus, 5GHz now works, but only with band C (149 - 161) and not band A (36 - 48).
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
FWIW - I have no trouble with band A reception on my 3rd gen Thor running Fire Nexus.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] 3L_Dud3rin0:
Worked like a charm

Just flashed to my 3rd Gen Fire Hdx 7 with no apparent problems as of yet. Rooted with KingRoot, Safestrap v4 for recovery, and then boom! flashed! Looks good so far. Gapps is on point. Much props to the dev team! Thank you for getting me out of that horendous Amazon OS.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] skeptic1007:
The 9 April version of the firmware eats the battery incredibly fast. Is there something I can do? I already run greenify and this is not the problem. The system is active most of the time even if there is really no use.

Sent from my mobile device
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Not my experience nor that of others. Nothing wrong with the 20160409 build. Consider dirty flashing latest version wiping only cache and dalvik partitions. Failing that do a clean install with full wipes.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
After trying this ROM to replace the old version I was using and going through all the posts to get rid of the error I had ROM was just doing constant reboots so I gave up on trying to use this ROM.

I reinstalled old ROM which is working fine except for Playstore needing to keep uninstalling updates and tried some fixes to not update Playstore which did not work.

My question any other place I can try to get more updated Playstore? If I went to the GAPPS site what ones would be compatible with my Kindle Fire HDX?
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Any Open GAaps will work on a HDX as the system partition is sufficiently large to handle even a 'Stock' install. That said, consider the merits of a leaner package as you can always install individual apps from the Play Store once the framework is there.

FYI - I am running the latest Nexus build and have experienced NO issues. Several hours use per day. Can't remember the last time device spontaneously rebooted. Unlocked HDX 7. Are you using Safestrap?
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
Ok I will try installing new gapps install and my problems came from doing dirty install of this ROM on my old discontinued version I was using.

I was able to fix first problem with a error at boot due an app needing to have its data cleared.

I dont remember the exact wording on this its posted here in earlier comments.

Anyways once error was gone the tablet looked like was booting fine then it kept rebooting before I could find out why so went back to using ole ROM

Everything I been doing for my backup/restore/install has been done using Safestrap.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
A prerequisite for Safestrap users flashing Fire Nexus B20160228 and above is FireOS 4.5.5.1 binaries (here). Bit of a PiTA for Safestrap users as one would need to backup existing stock slot, reload FireOS 4.5.2, allow an OTA to 4.5.5.1; reroot, reinstall Safestrap and then reload previous stock slot from backup. Only then could a 'dirty' upgrade be attempted which may or may not work. The previous Nexus generation (HDX Nexus v4.0.5) will continue to function for now but will not benefit from compatibility, security and other enhancements (eg: location services) going forward. You'll have to decide if/when it makes sense to update to Fire Nexus.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
Were can I get FireOS 4.5.5.1 binaries and boot.img
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
With Safestrap v4 and a locked bootloader you need up upgrade FireOS as outlined in my previous post.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
Ya the more I try to understand the more confused I get as to how all the pieces are going together!
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
I was only able to use factory reset to use this ROM and its not trying to add any of my old apps like it would on new install.

Hope there some way that can get that to sync as I had a lot of apps that need to restored one at a time.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Well, just because it works doesn't make it right. You munged an unsupported config by layering Fire Nexus on FireOS 4.5.2 kernel via factory reset. 4.5.5.1 is recommended.

Automatic restoration of selected apps and associated data is a Google function. Check Settings->Backup and Reset.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
As far as automatic restoration goes it was ruined from having to keep rolling back playstore and its starts keeping track of apps from that point forward as best I can tell.

I never used TB to backup apps and data any know if that works? I have Nandroid Backup Manager that seems to see backups to restore from which might be able to be used.

How are people getting their apps and data from old nexus to new one?

I still unable to get Nexus 4..0.5 to stop updating playstore which is all I need to keep that setup working its works fine on version 5 and crashes when version 6 is installed.

I shortened the exact playstore version numbers but I am sure you can follow what I am stating.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
- TB works for backing up and restoring applications

- tougher to pull individual apps/data out of a nandroid but it can be done

- all my apps/data remained intact upgrading HDX Nexus 4.0.5 -> Fire Nexus

- I was running Playstore v6.x on Nexus 4.0.5 w/o issues but I heard others had crashes

- no support for Nexus v4.0.5 (discontinued); best fight your way to Fire Nexus and go from there
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
I am using this now http://android-zone.ws/topic/62150-google-play-store-v51030-patched-installer/#comment-61810 and its working fine.

Now when Play Store gets updated I can easily roll it back by relaunching that app and thats good enough for me to keep my current Nexus 4.05 setup which I heavily modded and have a ton of apps installed.

I tried the only other thing I would do with the new ROM here to is to do a dirty install but that didnt work for me.

I am posting this Play Store for any in my position that can use it for that fix enjoy!
[Kindle Fire HDX 7" & 8.9" Original Android Develop] drftboi:
Hello, is there a way to remove Su and all binaries from Rom b4 flashing? some app I want to run detect SU and will not boot. Will be flashing with TRWP 3.0.0.1. Thank you
[Kindle Fire HDX 7" & 8.9" Original Android Develop] techmanc:
I been using Safestrap as I thought it was only choice how can I get the preferred TRWP 3.0.001 installed?
[Kindle Fire HDX 7" & 8.9" Original Android Develop] drftboi:
my refurbish hdx came with a software version below 3.2.8. so i was able to unlock bootloader and flash twrp. my old hdx with safestrap bricked when i was careless. so do be careful with flashing. from what i've read, if you are using safestrap then you are on a SW with efuse. and flashing TWRP will brick your device.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
SuperSU is capable of removing itself (full ckean-up). If you are dirty flashing you may need to disable the problematic app first. That said, an app should not prevent booting unless deeply integrated - eg: Xposed module.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] drftboi:
Sorry, what i meant was the software will not run if SU is detected. i will boot just fine. will just look through the zip file and remove all SU and xbin binary. ty.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] Enochwel:
I just want to make sure I have the correct understanding before I go further

Thank you in advance for your time and expertise to respond:

This is a noob question I know. My first time doing this, but I cant go on living with FireOS...

BUT, its technically my wife's Kindle, so I have to make double sure I don't ruin it...

I have Kindle Fire HDX 7" (Thor) 64gb 3rd Generation with FireOS 4.5.5.1

In order:

1) I first root using Kingroot

2) Confirm rooting via app

3) Download and install Safestrap v4.01

4) Download Current ROM linked on page 1 (...20160409+.zip)

5) Open Safestrap and Install Recovery > Reboot to Recovery

6) Backup Data and System partitions

7) Copy Backup file from TWRP folder onto my PC for safekeeping

8) If I partitioned ROM-Slot-1 and have not gone further, then delete it, because that would have been a mistake.

9) Install ROM onto STOCK SLOT > also Add gApps zip

10) Swipe to Confirm Flash

Is this correct?

Thanks again!
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Yes - steps are correct. Only missing item is to include SuperSU (root manager) with the ROM and GAaps flash.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] Enochwel:
The notes say it is built in, but I don't see it in my downloads from the safestrap installer. I assumed it was just part of the ROM.

Thanks
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
My apologies! I was thinking of a nearly identical Nexus build for a different Amazon device. GAaps (nano) and SuperSU are included with the ROM. So just one file to flash! Sorry for the misinformation.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] Enochwel:
The issue I'm having now is extremely long first boot time. I have 64gb device so I'm just being patient, but I've crossed 1.5 hours now. The circles are smoothly dancing. I'm going to go to Walmart and come back. If it is not booted up:

1: go to safestrap recovery (hold power and press volume down?)

2: wipe Stock Slot > clear cach or full wipe?

3: if I do full wipe will I need to reinstall ROM via USB? And to same (download) folder?

3: or will it keep the ROM and I can try reflash?

Thanks for your help!

Edit: ok it is definitely stuck in boot up dancing circles. I tried just simple restart first, then tried clearing cache and reflashing ROM. Both non resolving. Where should I go from here?
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Initial boot should take <5 min; subsequent boots should be well under 60 sec. Boot into Safestrap recovery and perform a 'factory reset' from the wipe menu (slider at bottom); leave all options at their default values. Reboot system. What happens?
[Kindle Fire HDX 7" & 8.9" Original Android Develop] Enochwel:
Ok I did that and went ahead and looked into install to make sure the ROM was still there. Is it not. I'm assuming I still reboot?

I did some reading a while ago. It looks like I was doing a complete dirty flash (no wipe of anything). I'm anticipating having to reload ROM via USB.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
You can't reload anything via USB in Safestrap. It is a closed environment that can not communicate with the outside world. Are you saying the Nexus zip file was deleted when you did a factory reset? Where did you have it stored?

A factory reset should not have deleted the installed ROM. So yes - reboot.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] Enochwel:
I had it stored in downloads. Reboot to system?
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Yes - reboot system.

Edit: Bit of bad timing; offline for ~8 hours. Will pick-up conversation then.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] Enochwel:
Awesome!

You guys are really great! It did work. I learned something. Now I'm going to enjoy my awesome HDX/Nexus marriage!
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Glad it worked out. One final important but often neglected action: place a copy of Nexus install zip in a folder of your choosing, preferably in the root of sdcard. Recall you can not transfer files to/from the device while in booted into Safestrap recovery. No ADB, USB, tether, etc. If Nexus won't start reinstalling a ROM (any ROM) may be the only path to recovery. You can also keep backup images on the device but they are significantly larger (10x or more) and don't represent a 'clean' install. A fresh rom will usually get you going again should bad things happen.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] HBloomer:
Thanks ggow

ggow, thank you for this rom! I just switched over from the Cyanogen 11 where the play store wasn't working. This Nexus rom works flawlessly and looks beautiful!
[Kindle Fire HDX 7" & 8.9" Original Android Develop] cwzkevin:
Thanks, OP. I like this Fire Nexus Rom more than the CM-11 Rom, it is clean.

However, I can't make the SIM card network work no matter how I flash it, where I flash it to... Would be nice if the SIM card network worked! Is there a way to address to this issue in the future? Thanks!

1. SIM card network works in stock ROM, both on Stock slot or Slot 1

2. SIM card network works in CM-11, only tried Stock slot

3. SIM card network doesn't work in Fire HDX ROM, tried both Stock slot and Slot 1

4. WIFI will only work on Stock slot across three ROMs.
[Kindle Fire HDX 7" & 8.9" Original Android Develop] DB126:
Secondary slots should not be used in Safestrap v4:

- WiFi only works w/cm11 (sometimes)

- only two (of four) cores can be active

- those two cores run at 100% regardless of load

- core issue yields poor performance and battery life (no deep sleep)

- secondary slot backups restored to stock slot will brick device

- permanent storage available to secondary slots both fixed and limited

Understanding your question surrounded SIM support; simply pointing out liabilities of SS v4 secondary slots (does not apply to SS in general).
[Kindle Fire HDX 7" & 8.9" Original Android Develop] inflames80:
ggow: thank you very much for this rom! :)

i've updated from the nexus 2.0.5 rom, and had no issues at all. actually after using it for one week i noticed even less battery drain.

great work! i can absolutely recommend this rom for the kindle hdx apollo 8.9. :good: