yashsingh1/xdaforums huggingface dataset:
[Nexus 6P Q&A, Help & Troubleshooting] DevALT:
Hello, you describe a cluster A57 failure, to fix it you need to boot into your phone enough time to enable USB debugging and OEM unlock then flash a modified kernel or a modified ramdisk

See this thread : https://xdaforums.com/nexus-6p/general/guide-fix-nexus-6p-bootloop-death-blod-t3640279/

To boot into your device you need to overheat the CPU so the software will shutdown the faulty A57 clusters to cool down the device as soon as it boot up enable USB debugging and OEM unlock before the A57 clusters goes online (because it will shutdown your device) once you succeed enable USB debugging and OEM unlock flash modified files and enjoy your working (but slower) N6P

I had that problem too, but wasn't able to live thinking that my phone was working with CPU issues, so I bought an other Nexus 6P from a guy on the internet, he was selling it because the screen was broken, I got it for real cheap ! I swapped the screen of my BLOD N6P to the one from the guy, it cost me 60$ to completely fix my phone (way less than buying a new phone or buying a new microprocessor)
[Nexus 6P Q&A, Help & Troubleshooting] moshu_fc:
Hy!

Already done that... Today It comes back from service, they told me they replaced the PCB ... so... it could be a hardware problem or a malware of some kind that ruins the memory... that's what i think about those problem, but i suspect google has something to do whit it!

So... i'll get back to you when I will have IT! :fingers-crossed:
[Nexus 6P Q&A, Help & Troubleshooting] a_q:
bootloop can't unlock device

I have had exactly the same problem. I tried in vain using heat or cold to get the thing to boot, but independently found the method of leaving it on charge for a few days, occasionally it will get into the O/S.

So while in the O/S I enabled developer options and adb too (the second time) and unlocked the bootloader.

However it still claims to be "device is LOCKED" in recovery mode. This is really weird. I have also factory reset the phone but that hasn't helped.

Luckily I have read the other posts about power saving mode so I'll try that next, it will save having to flash a non-stock OS.
[Nexus 6P Q&A, Help & Troubleshooting] GohanBurner:
When people ask why unlocking the bootloader is important to me, this specific situation comes to mind. If you had unlocked your device you could have fixed this easily, mind you you would lose 4 cores.
[Nexus 6P Q&A, Help & Troubleshooting] khozemk:
My nexus 6P recently went through this bootloop,

Google screen coming up and stuck there, for 5 days, i was going through many possible solutions throughout the web, but they all said it must boot to OS to be able to unlock oem bootloader,

Finally stuck at extreme heat or cold, extreme heat did'nt work for me, but YES extreme cold did actually work, i kept it in the deep freezer for about half an hour, and then waited 2 min, and plugged the charging cable and powered ON the phone, to my astonishment, it did start and i was able to use the phone.

I have rebooted several times since then, it works fine for certain time, and then crashes and restarts all the time, i can still use th phone but its uncertain when it will restart again.

I tried to install new custom rom, but it still says DEVICE IS LOCKED and i cannot do anything else.
[Nexus 6P Q&A, Help & Troubleshooting] Max.Payn3:
https://xdaforums.com/nexus-6p/general/guide-fix-nexus-6p-bootloop-death-blod-t3640279

Obviously it will say " Locked " because you haven't actually unlocked the bootloader .

Just turning the toggle on for OEM unlock was merely the first step , ( also check on usb debugging ) Please follow the full rooting guide step by step for Normal as well as Bootlooped 6P

https://xdaforums.com/nexus-6p/general/guide-fix-nexus-6p-bootloop-death-blod-t3640279
[Nexus 6P Q&A, Help & Troubleshooting] khozemk:
My USB DEBUGGINING was already ON, after that freezing incident, i have unlocked the phone, i am able to install custom ROM as well (only one time), after that installation it worked for two days fine then the same thing happened with GOOGLE screen showing up and it went into bootloop all over again.

Now;

1.The freezing part doesnt help, like it did before.

2.Kept it on charging for a whole day, doesnt boot up.

I showed it to multiple mobile phone repair persons, they finally came to a verdict that the phone has CORE issues and the motherboard needs to be replaced.

Yet still i think there might be some solution to this.
[Nexus 6P Q&A, Help & Troubleshooting] bmx666spb:
Today I faced with "device is locked", I can't unlock device anymore and boot into custom AOSP always failed due to security reason.

I knew if Google firmware can boot without problem and it can pass validation even device is locked.

Fortunately, I had TWRP-3.1.1-0-FBE in recovery partition! It's save me!

So I tried upload factory images, but flashing boot, system and vendor images don't get any success.

I started digging deeper and found OTA zip-archive for angler which can be flashed via adb sideload.

I download latest OTA zip from developers.google.com/android/ota, but during flashing it always fail on compare of date.

I unpack "update-script" and remove compare of date

(!less_than_int(1539967506, getprop("ro.build.date.utc"))) || abort("E3003: Can't install this package (Fri Oct 19 16:45:06 UTC 2018) over newer build (" + getprop("ro.build.date") + ").");

I putted back "update-script" into OTA zip-archive and flashed it via sideload without any issue!

I reboot my device and BINGO! Device is booted into stock AOSP.

Maybe this workaround can help somebody and save a lot of time.
[Samsung Galaxy S8 Questions and Answers] Stinkflyz:
Went from Note 3 to Unlocked S8 and I rely a lot on the LED. The Note 3 was nice and bright. Not so on the S8. I cannot see if from across the room. Light flow does a good job of giving me the colors I want and I rooted the phone. So does anyone know how I can go in with a file manager and change the code to make the LED brighter? Thank you in advance!
[Samsung Galaxy S8 Questions and Answers] Charkatak:
I am at work and didn't have time to check my phone, but in accessibility settings on iPhone there is an option to make flash light blink when there is a notification. See if S8 has anything similar.
[Samsung Galaxy S8 Questions and Answers] mike_8:
Hello, I installed LightFlow to control my Galaxy S8 led color.

What should I do to reset the colors of the led to the factory color and brightness ?
[Samsung Galaxy S8 Questions and Answers] AiMwasNeD:
you have to uncheck Samsung root modus in light flow settings. That bring the LED back to original brightness...... at least that helped me.

Unfortunately, the S8 LED can only display very few colors correctly.
[Samsung Galaxy S8 Questions and Answers] mike_8:
If I will make a hard reset of the phone, it will reset the led color ?
[Samsung Galaxy S8 Questions and Answers] AiMwasNeD:
for sure! But it is a very rough solution ;)

just uninstall light flow should bring back original settings
[Xiaomi Redmi Note 4 Questions & Answers] nilanko:
I had my internal memory messed up after restoring a nandroid backup and was showing 28GB in size when connected to PC. After wiping the internal memory via TWRP, the problem was fixed. But I forgot what was the actual size of internal memory :confused:

Can someone tell me what size shows up on PC when RN4 is connected via USB?
[Xiaomi Redmi Note 4 Questions & Answers] Neopumper666:
Mine says 23.4GB of storage. it is 32gb version
[Xiaomi Redmi Note 4 Questions & Answers] schlagg:
28.5 left on 52.1GB (its a 64GB version)
[Samsung Galaxy S7 Edge Guides, News, & Discussion] Ranbir7878:
S8 Port Roms on S7 Edge

Did anyone notice it?

if u are using any theme (not default). & go to change your lockscreen wallpaper, then u can see its automatically change lockscreen clock to default theme clock. but which theme is currently applied that has his own clock style & font.

its not only happens with only one or few themes. its happens with all theme whatever u apply

can anyone fix it?
[P8 Lite (2017) Discussion] kurtulus145:
Can anyone compile the MIUI rom on this device?
[P8 Lite (2017) Discussion] XTutorials:
Unfortunately MIUI is impossible for now because there is no Marshmallow ROM for this and PatchRom 9 hasn't released yet.

And not even on old P8 Lite there is no MIUI since it is a pain in the butt to make it boot like in my case, over 10 builds done and stuck in bootloop.
[Fire Q&A, Help & Troubleshooting] phil_000:
Hi, is it possible to downgrade FireOS 5.4.0.1 to 5.4.0.0 on a Kindle Fire 5th Gen? If I downgrade, will it brick the device? :confused:

I'm not looking for a rootable version, I just want to downgrade it.

Thanks!
[Fire Q&A, Help & Troubleshooting] Jake1702_:
We don't know, nobody has tried yet. If they did, they didn't post about it. You could try at YOUR OWN RISK. I'd say it's not a good idea, but if you do try please post back with whether it worked or not. Good luck.
[Fire Q&A, Help & Troubleshooting] Coneyfox:
Downgrade from 5.4.0.1 to 5.4.0.0 works fine

Today, I used the adb sideloader to downgrade my 5th gen 7" Fire from 5.4.0.1 to the less restrictive 5.4.0.0. No problems, not bricked. Will post back if I find anything wrong with it. 5.4.0.0 allows you to use shell commands to delete unwanted system apps, for those of you who don't know.
[Fire Q&A, Help & Troubleshooting] phil_000:
Thanks for the information! :D
[Fire Q&A, Help & Troubleshooting] forawesome:
This is great news! Can you give the details on how you did it? I'm not familiar with sideloading firmware; I've only ever sideloaded .apk's. Thanks!
[Fire Q&A, Help & Troubleshooting] mrmazak:
Please can you link to the file you used to sideload.

edit NVM, i found it. Right where it belongs. lol..on amazon.
[Fire Q&A, Help & Troubleshooting] DB126:
See video in OP of this thread. Be sure to use the file (.bin) for FireOS 5.4.0.0 vs whatever build is mentioned in the video.
[Fire Q&A, Help & Troubleshooting] mrmazak:
I am skeptcal of this users report of being able to downgrade.

*no details

* no response to requests for details

* poster is new xda poster with only 3 posts, all of which are claiming successfull downgrade.

maybe just me , but I would not want to be first to follow his footsteps.
[Fire Q&A, Help & Troubleshooting] Technocian:
It's the same guy who made the post about 5.3.3 root by flashing SuperSu. Seriously though guys, if you plan on actually using your tablet and not just experimenting with it for fun, don't do this. Especially if you aren't in the 30 day exchange period anymore.
[Fire Q&A, Help & Troubleshooting] DB126:
Don't have time to look now; if this guy has a history of intentionally misleading members (potentially leading to bricked devices) will report and let the mods deal with him.
[Fire Q&A, Help & Troubleshooting] DragonFire1024:
The same went for those reporting it CAN'T be done...new users, a few posts. I try to have an open mind, but unless they're regular users, I take some new user posts with a grain of salt. Always be careful.

EDIT: I did walk one user through trying to downgrade an HD 8 FROM 5.4.0.1, which was unsuccessful and resulted in an unrecoverable brick. It's likely the same thing for the Fire 7.
[Fire Q&A, Help & Troubleshooting] shw2921:
Hi, new to XDA forums - about 2 weeks ago I came here looking for a way to re-google my fire 7 (which I'd just bought) but mine was already upgraded to 5.4.0.1

I tried to downgrade using a .bin from amazon but it failed during verification so I gave up. Because of this thread I re-downloaded the .bin (which seems to have changed? I'm unexperienced but the update number is different) and tried again.

It downgraded fine and I'm running 5.4.0.0 - I'm honestly not sure what changed but thought I'd put this out there.
[Fire Q&A, Help & Troubleshooting] mrmazak:
Do you know if your fire is 5th or 7th gen?
[Fire Q&A, Help & Troubleshooting] shw2921:
It's a 7th gen
[Fire Q&A, Help & Troubleshooting] DragonFire1024:
It appears the Fire 7 CAN be downgraded, but likely the HD 8 CANNOT be. I don't know how this is possible though. Maybe someone else can chime in about the specifics.

If you are on 5.4.0.0, you can uninstall/disable system apps. So if that's what you're looking to do, congrats...You can still do it :)
[Fire Q&A, Help & Troubleshooting] steve8x8:
Hi,

this sounds like during the first attempt you used (tried to use) a firmware that was created for the 5th gen fire 7 (codenamed "ford"), not the 7th gen ("austin") that you have. Their names differ in only one place AFAICT: it's a 37 (5th) or a 55 (7th).

While for both device generations there's no 5.4.0.1 for download, someone might have a closer look at the .bins to learn about the hardware differences between 5th and 7th - beyond what we already know.
[Fire Q&A, Help & Troubleshooting] shw2921:
Awesome! That explains it. The more I learn the better. Also to DragonFire - yes I wanted 5.4.0.0 for system app removal, so it turned out good in the end.
[Fire Q&A, Help & Troubleshooting] Dan_firehd:
Sorry to repeat this again. But there were some conflicting reports about whether it is possible to go from Fire OS 5.4.0.1 to Fire OS 5.4.0.0. (One report of failure for Fire HD8 (7th Generation)).

Would you please confirm the following steps:

(1). You have Fire 7 (7th Generation, 2017 model) with Fire OS 5.4.0.1

(2). You go to this Amazon site to download Fire 7th Generation OS 5.4.0.0 :

https://www.amazon.com/gp/help/customer/display.html/ref=hp_left_v4_sib?ie=UTF8&nodeId=202144590

(3). You sideload the file from Step (2) above by typing ,from a PC window, "adb sideload update-kindle-55.5.7.9_user_579225620.bin"

Thank you so much.

I am waiting for more reports of success before I attempt to "roll-back" my Fire 7 (7th Generation) from OS 5.4.0.1 to OS 5.4.0.0, so that I can "pm uninstall" most of the Amazon Apps.
[Fire Q&A, Help & Troubleshooting] phil_000:
My Amazon Fire 2015 downgraded to 5.4.0.0 just fine. Removed OTA updates, Lockscreen Offers, and Amazon Apps.
[Fire Q&A, Help & Troubleshooting] Jake1702_:
Nice to know that if in the event a Fire does update to 5.4.0.1, it can be rolled back.
[Fire Q&A, Help & Troubleshooting] DragonFire1024:
It appears only the 7th Gen. Fire 7 though.
[Fire Q&A, Help & Troubleshooting] forawesome:
Can confirm! Fire 7 (7th generation), I used the exact steps above with no issues. (Of course, I only did this just now, so I can't say whether problems will develop in the future).

I'm not very active here, but I just want to thank all of you who put in the time here to help us all out with our various devices!! :good:
[Fire Q&A, Help & Troubleshooting] Jake1702_:
I assume that it's the same case with the 5th gen, but personally I'd rather not try it.
[Fire Q&A, Help & Troubleshooting] DragonFire1024:
I'm not going to either. At least not until I get mad enough at it to do so lol
[Fire Q&A, Help & Troubleshooting] shw2921:
Hi - sorry for the late reply.

As others have stated yes this is the exact procedure I followed and yes mine is a 2017 7th gen :) Hope this helps. Also, fingers crossed for all the 5th gen people hoping for a similar outcome.
[Fire Q&A, Help & Troubleshooting] MontysEvilTwin:
The US Amazon website now has version 5.4.0.1 Fire software available for download, not 5.4.0.0. If you want a copy of version 5.4.0.0 for your device it is still available on the UK Amazon site (replace '.com' with '.co.uk' in the address). If you want a copy, do so quickly as I imagine the UK site will be updated soon too.
[Fire Q&A, Help & Troubleshooting] Dan_firehd:
Or one can bookmark the "direct link" to the firmware :

Fire 7 (7th Generation) OS 5.4.0.0 firmware BIN file:

https://fireos-tablet-src.s3.amazon...Uqo/update-kindle-55.5.7.9_user_579225620.bin
[Fire Q&A, Help & Troubleshooting] mmdatze:
it`s working thx

Just downgraded my fire 7 hd 7th gen to 5.4.0.0 - came stock with 5.4.0.1

made a full reset befor flashing the 5.4.0.0

used "how to" from shw2921 - it works without any problems

thx :good:
[Fire Q&A, Help & Troubleshooting] Matrey_Moxley:
I also followed the above instructions with my Fire 7th Generation and successfully downgraded 5.4.0.1 to 5.4.0.0 with no issues. I used the steps in the bloatware removal tool to remove the lock screen ads and remove some of the included Amazon utilities. (I used a Mac instead of a PC so couldn't run the tool itself, but instead ran the steps in the batch file manually.)

Worked fine. Thanks to everyone for compiling and writing up the process posts for the above!

I also have an older 5th Gen 7" Fire that I have been running with the Nexus ROM installed. The new non-rooted Fire with Nova Launcher is pretty good, but feels a bit more sluggish sometimes changing between apps, and sometimes within apps. I haven't done a real side-by-side comparison, but that is my impression.

Still, considering they're selling these things for fifty bucks, they're damn usable, especially with the above processes to clean them up a bit.
[Fire Q&A, Help & Troubleshooting] dangquybk:
Fire 7 2015

Confirmed that downgrading from 5.4.0.1 to 5.4.0.0 was successful.
[Fire Q&A, Help & Troubleshooting] dullstaples:
Sorry if I seem repetitive to other replies on this thread, but is it possible to downgrade a fire 7 5th gen from 5.4.0.1 to 5.4.0.0 with out bricking it? I've seen a lot of conflicting statements about it.
[Fire Q&A, Help & Troubleshooting] DragonFire1024:
I am not sure. I do know if you have a 7th Generation Fire 7, you CAN downgrade back to 5.4.0.0 and even further downgrade back to 5.3.2.1. I just got my PC up and running yesterday, so I've yet to check the threads for reports of someone trying with a 5th generation tablet.
[Fire Q&A, Help & Troubleshooting] Jake1702_:
I saw a post about that. I can't remember who, but someone said that the bootloader is the same, just as with the 7th gen. If I remember correctly, someone reported success with it.
[Fire Q&A, Help & Troubleshooting] smapdi:
So I was given a little side task by my boss' boss to see if I can put in a different (read: better) ROM on his 5th generation 7 inch Fire. I just checked and the thing is running 5.4.0.1. Now I read a bunch of the threads on here and what I kind of understand is that I need to go back to 5.3.2.1 by first downgrading to 5.4.0.0 and then downgrading again to 5.3.2.1 which should allow me to root and then (hopefully) boot using TWRP to flash a new ROM. Does that sound correct?

All the ROMs that I've seen are all Lollipop-based which I guess is a limitation based on the locked bootloader, right?
[Fire Q&A, Help & Troubleshooting] DragonFire1024:
You cannot root any tablet running 5.3.2.1 or above. The most you can do on that, or 5.4.0.0, is disable/uninstall system apps.
[Fire Q&A, Help & Troubleshooting] smapdi:
And there is no method of going back before 5.3.2.1, right?

Is there a list of bloatware that can be safely removed?
[Fire Q&A, Help & Troubleshooting] DragonFire1024:
Correct. 5.3.2.1 is the lowest you can go. That goes for any Amazon tablet on 5.3.2.1 or above. You can remove bloatware by using the automatic tool, or you can do it manually. However you need to be on 5.4.0.0 or LOWER in order to uninstall/disable bloatware.
[Fire Q&A, Help & Troubleshooting] dullstaples:
Is it safe to downgrade from 5.4.0.1 to 5.4.0.0 on a 5th gen fire though?
[Fire Q&A, Help & Troubleshooting] Jake1702_:
I have seen claims that the bootloader is the same, which means it can, and I have also seen someone claim that they successfully did it. I can't assure it as 100% safe, so do it at your own risk.
[Fire Q&A, Help & Troubleshooting] dullstaples:
So if it's possible is there some instructions on how to downgrade? Like another thread in the form or a YouTube video? I've never downgraded anything before and I want to know what I'm doing.
[Fire Q&A, Help & Troubleshooting] Om3ga85:
Confirmed 5th Gen Downgrade worked

Worked on my 5th gen Fire from 5.4.0.1 to 5.4.0.0 without any glitches
[Fire Q&A, Help & Troubleshooting] Kiing Abe:
Just a question, so when you say 5.3.2.1 is the lowest you could go is that because anything lower will brick the device if you tried to downgrade ?
[Fire Q&A, Help & Troubleshooting] Destruct90:
I just have done my rollback from 5.4.0.1 to 5.4.0.0 with 5th Fire. No problem found :D:D
[Fire Q&A, Help & Troubleshooting] mt12345:
confirmed successful downgrade 5.4.0.1 > 5.4.0.0 on 5th gen Fire 7 2015 (Ford) using this file:

update-kindle-37.5.7.9_user_579225620.bin

I didn't factory reset the device so settings and installed apps are preserved.
[Fire Q&A, Help & Troubleshooting] avaneesh:
Same here.

This file can be found here

Just downgraded successfully! :)
[Fire Q&A, Help & Troubleshooting] btonetbone:
Does anyone have a link to the 5.4.0.0 bin file for the Fire HD 10 (7th gen, 2017 version)? Or - and I am assuming it won't work and would prefer not to brick my tablet - is the version for the Fire 7 linked above the same file?
[Fire Q&A, Help & Troubleshooting] DB126:
Most definitely NOT the same binary. Best ask in the HD 8/HD 10 forum. Also no assurance FireOS 5.4+ for the HD 10 can be successfully rolled back to 5.4.0.0 w/o bricking. Again, your device forum is the best resource.
[Fire Q&A, Help & Troubleshooting] Pix12:
With the Austin model, will it work?
[Fire Q&A, Help & Troubleshooting] Pix12:
It works on the Austin model!
[Fire Q&A, Help & Troubleshooting] gabosius:
Did downgrade 5.6.0.0->5.4.0.1->5.4.0.0 on Austin (Fire 7, 7th gen) successfully.
[Fire Q&A, Help & Troubleshooting] Aaramanth:
Kindle HD 8 downgrading from this version to 5.4.0.0 does not work,

device wont turn on afterwards
[Fire Q&A, Help & Troubleshooting] turkf80:
Hi there, Anyone tried to use the sp flash tools on this tablet, the different between the 5th and 7th. gen is the MTK8127D or MTK 8127B SoC. So, this is maybe an option. But I DO NOT HAVE ANY of tabs at the moment. I'd like to buy one. For example on lenovo A8-50 i did many times the rom changes with this method.

Sorry about my english, this is not my native language.
[Fire Q&A, Help & Troubleshooting] DB126:
This has been tried with 5th gen devices without success. The difference in SOC between 5th and 7th gen is very subtle; outcome would likely be similar.
[Fire Q&A, Help & Troubleshooting] X_Z3R0:
Does anyone have a link (outside of amazon servers) for 5.4.0.0 for the Amazon Fire 7 2017? The link is a bin for the newest firmware 5.6.0.0.
[Fire Q&A, Help & Troubleshooting] el_figurin:
Amazon Spain still has 5.4.0.0. Sorry, I'm a new member, so I cannot post links at the moment.

Here's a screenshot, just change ".com" for ".es".

---------- Post added at 02:12 PM ---------- Previous post was at 02:05 PM ----------

Curious, where did you find the firmware?
[Fire Q&A, Help & Troubleshooting] gabosius:
Amazon UK and 5.4.0.0 is still accessible from there. 5.4.0.1 - I think it was Amazon US, which after OTA release of 5.6.0.0 still had 5.4.0.1 on its website.
[Fire Q&A, Help & Troubleshooting] DJC2982:
Hi....

I do not know the exact os that mine shipped with because I neglected to look prior to the OTA update (5.6) that it did shortly after wifi connection. I am told that it shipped with 5.4 by Amazon Tech Support.

Questions:

-Now that I am running 5.6.0, what are my options? Can I downgrade back to factory shipping OS?

-If I can downgrade to 5.4, does that mean I can then downgrade to yet an earlier version as well?

-In short, can I get back to an OS that will allow rooting of the device?

-Lastly, can I and should I turn off any OTA now (on 5.6)?

Thanks in advance

Don

---------- Post added at 07:31 PM ---------- Previous post was at 07:21 PM ----------

Hi Dragonfire,

I think the above addresses my question of whether or not I can downgrade my 7"/7gen tablet.

I am currently running 5.6 (OTA bumped me shortly after wifi connection). I'd like to root my tablet if possible...can I back it up to an OS that will allow rooting?

I have 5 more fire 7"/7gen tablets in the box...presumably running the factory OS that I was told was 5.4. Would be great to get them all rooted if possible.

Thanks

Don