Nexus 5X bootloop of death fix (BLOD) | 7/30 Huge performance update!

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otij

Member
Dec 15, 2014
12
5
i had a motherboard that had bootloop i tried to hot air gun the cpu , it worked for one day then
it ended up the motherboard having a shortcut and start to heat up at 80° 100°c or more.
i had to emergency dismantle and remove the battery.

i bought a new motherboard and to prevent the bootloop
i patched the boot with your image .

it worked very good after i did a fastboot oem unlock ,
i flashed the img.
since i had access to the phone i could change settings.
really i don't want that it dies on me so i prefer work with 4 cores then 6.
(my version is android 6)
thanks a lot for your work .
 
Last edited:

CLPose

Senior Member
Jan 7, 2015
726
380
Buenos Aires
i had a motherboard that had bootloop i tried to hot air gun the cpu , it worked for one day then
it ended up the motherboard having a shortcut and start to heat up at 80° 100°c or more.
i had to emergency dismantle and remove the battery.

i bought a new motherboard and to prevent the bootloop
i patched the boot with your image .

it worked very good after i did a fastboot oem unlock ,
i flashed the img.
since i had access to the phone i could change settings.
really i don't want that it dies on me so i prefer work with 4 cores then 6.
(my version is android 6)
thanks a lot for your work .
Hi! You may try Lineage with ExKernelManager. Limit big frequency below 1000Mhz and your N5X won't be too hot, therefore it won't BLOD. Good luck!
 

rsszz

Member
Jun 10, 2020
5
0
kingman
BLOD

Hello i am struggling trying to find a fix to my LG GOOGLE NEXUS 5x.

I used the nexus tool to root and install twrp.

All was fine until i decided to go an install lineage os then when i went to reboot well thats where it ended and now I am here.


Can someone advise if I should or should not use this tool.... is their something more up to date with ease of use for a noob pretend developer like me lol...

p.s

Tried the factory reset and tried to use soft/brick and repair via nexus tool and no luck still stuck in bootloopo..

God I hope i can save my phone...

Any help will be greatly and i mean greatly appreciated...
 

jd1639

Inactive Recognized Contributor
Sep 21, 2012
16,831
5,403
Minnesota
Hello i am struggling trying to find a fix to my LG GOOGLE NEXUS 5x.

I used the nexus tool to root and install twrp.

All was fine until i decided to go an install lineage os then when i went to reboot well thats where it ended and now I am here.


Can someone advise if I should or should not use this tool.... is their something more up to date with ease of use for a noob pretend developer like me lol...

p.s

Tried the factory reset and tried to use soft/brick and repair via nexus tool and no luck still stuck in bootloopo..

God I hope i can save my phone...

Any help will be greatly and i mean greatly appreciated...
Have you flashes a full factory image, including wiping the device?

Sent from my [device_name] using XDA-Developers Legacy app
 
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rsszz

Member
Jun 10, 2020
5
0
kingman
no only tried reflashing via nexus/root tool

---------- Post added at 10:33 PM ---------- Previous post was at 10:12 PM ----------

could you please leave me some tips on flashing a full factory image?

I will post an update as soon as i have successfully fixed this so that noone need waste time replying....however ill be gone for a cpl hours following this post....bbl and thank you for your time.


Rob
 

rsszz

Member
Jun 10, 2020
5
0
kingman
Flashed full factory image sadly im in a bootloop still what should i try next?

Update nothing has worked just tried the blod tool and at the point where it says just wait may take a while to boot it does act slight dif but still does not boot maybe ill try from my desktop pc and not my 32 gb laptop maybe???

but if I fail one more time ima just buy a new motherboard I like this phone tooo much and im just beginning to learn how to flash ect and I enjoy customizing more than actual games.

---------- Post added at 05:26 PM ---------- Previous post was at 05:19 PM ----------

I also see that you can liquid solder the thingy on the motherboard but im afraid even if it works it may just heat up and leave me still searching for fixs so I found a mother board for less than 30...paid 50 for the device so $80 total imo is still a good deal to have a fully operational nexus 5x...


if im wrong please tell...


any other tips or tricks before I gotta roll out the green backs lol????
 

rsszz

Member
Jun 10, 2020
5
0
kingman
Did you try the thread that rooobot posted 6 days ago right above your first post?

I still have no idea why a moderator hasn't closed this deprecated thread...

Thanks, I only skimmed through the first several posts and did not see that.. so this updated fix will be my final efforts to manually fix my nexus. if this doesn't work im going to buy the motherboard...after watching the tutorial about replacing the motherboard i feel confident I can fix this...
 

ttocs99

Senior Member
Thanks, I only skimmed through the first several posts and did not see that.. so this updated fix will be my final efforts to manually fix my nexus. if this doesn't work im going to buy the motherboard...after watching the tutorial about replacing the motherboard i feel confident I can fix this...
Fixing the Nexus 5x is very easy indeed. Fully replaced mine form old cracked screen to another new screen with frame, everything from one device to new. Also moded with a copper shim and thermal paste. It's cooler and dispersion of heat is way better.
 

tmstaedt

Member
Aug 12, 2017
12
4
57
Passau
OnePlus 2
LG Nexus 5X
Boot.img from stock 48C, 7.1.2 firmware


Well, succeeded to get my old nexus 5x back working. I bought it in Jan 2016 and it fell down to the ground
and the display broke. It worked normally for a couple of weeks, but then started to bootloop.
Your boot image worked!!

Somehow managed to get the phone to boot to unlock the bootloader, probably by letting battery go down to zero.
But after setting up again, the reboot would result in a freeze at the black screen with the google in white letters.
I got it to work only after installing TWRP and do a complete format. Then it would successfully boot repeatedly.
 
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Dec 29, 2017
9
1
Guys, i know this is old topic, but what can i do with 3 nexus 5X? Can i use it's screen, or somehow use it for somehow like alarm for example, or use it's screen, or it's camera maybe? Can't just throw them away.
 

mayurh

Senior Member
Jul 8, 2010
1,563
85
Johannesburg
hi everyone.i managed to get my nexus 5x to work with 7.1.2 ad the bootimg etc provided
i want to update to 8.1.0 but i want to know what i will need to do and which files to get it working after updating to 8.1.0 as im sure it will bootlopp after the update
i have the 8.1.0 factory image. i have th 4coreoreo.img and recovery-fixed.img...will this be ok?
 

Lughnasadh

Senior Member
Mar 23, 2015
4,686
5,303
Google Nexus 5
Huawei Nexus 6P
hi everyone.i managed to get my nexus 5x to work with 7.1.2 ad the bootimg etc provided
i want to update to 8.1.0 but i want to know what i will need to do and which files to get it working after updating to 8.1.0 as im sure it will bootlopp after the update
i have the 8.1.0 factory image. i have th 4coreoreo.img and recovery-fixed.img...will this be ok?
Use the method outlined in this thread... https://forum.xda-developers.com/t/...-death-blod-workaround-flashable-zip.3819497/
 

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  • 239
    Read First: This method is relatively drastic, and will hurt device performance some. You should only use this as a last resort, if the more basic methods of fixing a soft brick didn't work (e.g, factory reset, flash stock firmware, etc.)​

    *Update 7/30: On my 6P, I found that the original kernel with this mod was using pretty much 1.5 cores, instead of all 4. People with the 5X were also reporting this, so I modified the images to utilize all 4 cores better. It helps performance a lot (able to beat stock 6P in some Antutu marks now, and play intensive games), try it out if you haven't yet!

    *Petition:
    I made a petition for Google to officially release and sign modified boot.imgs, so that people with locked bootloaders can fix their devices too. Check it out here. (I apologize for dumbing it down so much, I wanted to make sure everyone could understand it)

    *Changelog:

    • 8/26 - EX kernel for Android O uploaded.
    • 8/22 - Android O working, boot.img and source uploaded.
    • 8/08, 2nd Change - Added boot.img for 48C firmware (August security patch).
    • 8/08 - Updated EX kernel to version 4.1.2. This updated zip adds the CPU utilization patch to the init.elemntalx.rc, instead of removing the old init.angler.rc and copying the new init over. That should mean more compatibility with Roms/kernels that modify the init.angler.rc. I also modified the camera-daemon to use cpus 0-3 instead of 0-2, so hopefully this should make the a camera bit faster too.
    • 8/07 - Added boot.img for 1 core, just to see if it would work for devices that didn't work with the 4 core image.
    • 7/30, 2nd Change - Added universal EX zip, this zip should modify your kernel to use only 4 cores, and it should modify it to utilize all 4 cores. You can flash this over most ROMs and it should work. Also added a donation url, and this changelog.
    • 7/30 - Updated this fix to greatly improve performance. Before this fix, the device was only using 1 core for foreground tasks, now it will use all 4 cores. Also revamped OP, and added Marshmallow images.
    • 7/23- Created this fix, stock boot.img, twrp, and EX kernel added.


    *What this fix does, and how to apply it:

    The problem:
    The problem with most of the devices in a BLOD, is that a hardware failure related to the BIG cluster has occurred. This fix remedies the problem by disabling the BIG cores. Unfortunately, this does mean that you will take a performance hit. However, I am continually working on ways to improve the device's performance.

    The update: If anyone remembers device performance with the first fix, it was hurt a lot, however, after finding out that the device was only using 1 core for all foreground tasks, I modified the ramdisk to utilize all 4 cores more effectively, and it helps a lot.

    Requirements: For this fix to work, you need:
    • A brain
    • A computer
    • A bootlooping 5X with an unlocked bootloader/OEM unlocking enabled
    • The modified files of your choice.
    • Fastboot on your computer (preferably installed system wide). If you do not know what this is, or do not have it, look at this post. Answer yes to all of the prompts to install it.

    How to apply the fix:
    1. Boot your phone into bootloader (hold power and volume down).
    2. Connect your phone to the computer.
    3. Go to the folder where you have the modified files, then hold shift and right click in a blank space, click on "open command prompt here" in the menu that pops up.
    4. In the command prompt: type "fastboot flash boot [name of the file here]" and then press enter. If you're flashing TWRP, replace boot with recovery. (Linux users, make sure you're running as root)
      Edit: with the new universal EX zip, you don't have to flash the modified boot.img now, you can just flash TWRP, and then flash the EX zip, and everything should work.
    5. Boot up your phone, and hopefully it should work!


    *If your phone is bootloader locked/OEM locked:

    You can try to get your phone to boot long enough to enable OEM unlocking. Some users have reported success by freezing their phone for a bit, then booting it. Others have let their battery drain all the way, and then tried to boot their phone, but the most successful method seems to be heating up your phone (a lot).
    If you do attempt any of these methods, make sure you have time and patience, as it will take a long time.

    To enable OEM unlocking and unlock bootloader:
    1. Go to settings.
    2. Go to developer options, if you do not see that, go to "about phone", scroll to build number, and then tap it 7 times. You should now see developer options in settings.
    3. Once you're in developer options, click on "OEM unlocking" and accept the prompt.
    4. Now reboot your phone to bootloader, connect your phone to the computer, and type "fastboot flashing unlock" Your bootloader should now be unlocked.

    *Downloads:

    • Boot.img from Android O DP6: Download | Mirror. This Image is the from the first official release of Android O, and is modified to use 4 cores. As a bonus, it also disables forced encryption. Thank you to @xls654 for figuring out how to get Android O to work.
    • Boot.img from stock 48C, 7.1.2 firmware (August security patch): Download | Mirror. This Image is modified to use only 4 cores, and is modified to utilize the 4 cores more effectively. I have had multiple people on the 6p say that first boot takes a while after flashing this, so just wait about 20 minutes before you declare something is wrong with it.
    • Boot.img from stock 47Z, 7.1.2 firmware: Download | Mirror. This Image is modified to use only 4 cores, and is modified to utilize the 4 cores more effectively. I have had multiple people on the 6p say that first boot takes a while after flashing this, so just wait about 20 minutes before you declare something is wrong with it.
    • TWRP version 3.1.1: Download | Mirror. This TWRP image is modified to use only 4 cores.
    • EX kernel version 5.03, for Android O: Download | Mirror. EX kernel for Android Oreo, modified to use 4 cores. You must flash it over the 4 core boot.img for it to work.
    • EX kernel version 4.12, universal zip: Download | Mirror. This zip is modified to use only 4 cores, and it will also apply the speed fix. Flash this in TWRP. I highly recommend you flash this, as it improves device performance notably, and disables forced encryption. This kernel should work with almost any other ROM, and it applies the core utilization mod from the first image, thanks to AnyKernel.
    • Boot.img modified to use only 1 Core. Some people were reporting that the 4 core images weren't working for them, someone suggested that I make a 1 core version to see if that helps at all. Here it is: Download | Mirror

    For Marshmallow:
    • Boot.img from the latest 6.0.1 20K firmware: Download | Mirror. This boot.img is modified to use only 4 cores, and is modified to utilize those 4 cores more effectively. Untested as of now.
    • Ex kernel version 1.2.0 for Marshmallow: Download | Mirror. This is the latest EX kernel for marshmallow, it will keep the core utilization mod from the above image, and should work on almost any other ROM, thanks to any kernel. Untested as of now.


    *Source Code:

    • Source for 4 core Android O DP6: Source.


    *Tested custom ROMS/kernels

    you should be able to use almost any ROM with a stock based kernel, just flash the EX zip over it.

    If you have a custom ROM/kernel that worked for you, let me know and I'll put it up here.


    *To improve performance slightly:

    • Flash a custom kernel. I will upload more kernels as people request more, so stay tuned.
    • Flash a custom ROM. Once again, I will upload more as people request more, so stay tuned.
    • Overclock the little cores. It can slightly help offset the lost performance, on my 6P, I have mine overclocked to 1632MHz, and it works perfectly for me. Edit: I actually recommend not overclocking. Many people have reported their Little cores failing, so I would go for longevity on this device, and keep it at stock clocks, or even underclock it. The speed difference you get from overclocking is negligible anyways.
    • Disable animations in developer options. Seriously, as soon as I found out about this tweak, I've used it on ever single device I've owned, it helps a ton.


    *Credits:

    @rchtk, His post here gave me the idea for how to modify the images.
    @flar2, He built the Elemental X kernel for this device, I merely made a small modification to his kernel to use 4 cores. In no way am I trying to steal and/or discredit his work.
    The TWRP development team, they built the TWRP recovery for this device, I merely made a small modification to their recovery to use 4 cores. In no way am I trying to steal and/or discredit their work.
    @xls654, He found out how to get Android O working with 4 cores.


    *FAQs:

    • What's the password for TWRP/Why is TWRP asking for a password? - In android 7.0, Google added forced encryption to the data partition. To get around this, click cancel when TWRP asks you for a password, and then factory reset the device. Then you can flash EX kernel/Magisk to disable forced encryption.
    • Why am I getting an error when I try to flash the images? - Your bootloader is probably not unlocked, try running the command "fastboot flashing unlock", If you get an error there too, then you will have to enable OEM unlocking before you can continue.
    • It's not working for me, how do I fix it? - My only advice for that is: "Flash the stock firmware for whatever version image you're trying to flash, then reflash the images again" If you're stuck on the boot animation, wait at least 20 minutes before you declare it's not working. If none of that works, chances are you have a different problem.
    • Does EX kernel have the new speed fix? - Yep, the EX kernel zip should apply the 4 core fix, and the speed fix. It should also work with almost any ROM, including stock.


    I would like to help as many people as I can, however, I am much more likely to be able to easily help you/reply to your post if you clearly state your problem and the steps you attempted to fix it. I will be much less likely to reply to posts such as "omggg i flashed the image and my phone won't boot helppp" Please read through post first, I did not spend time typing up this OP for no one to read it. If I can see that you read through the OP and have attempted all the steps, then I will be much more willing to help you.

    I set up donations on my profile, for those of you who want to donate. I have spent countless hours modifying, flashing, testing, and helping, don't get me wrong, I love doing this and helping y'all out, but donations really keep me motivated to keep going, and donations also will help me fund new equipment and devices that will help further my android development. Every single donation is appreciated :) Donate to me here!

    If this guide helped you, please click thanks, it means a lot to me :)
    48
    Guys.. bad news.. my Nexus 5X just got hit with the BLOD. 😢

    Good news for everyone is I spent a bit of time tonight to first patch TWRP 3.2.1-0-FBE (File-Based Encryption support) image to be 4core, then made an AnyKernel2 zip which will patch the existing boot and recovery partitions on-device to add all the 4core fixes from @XCnathan32.

    Should work over any ROM, any custom kernel, recovery, etc., can be added in queue after ROM, root zip + custom kernel to patch it from TWRP or FlashFire (so good for OTAs), and simplifies the initial process greatly since you can now fastboot boot any 4core recovery.img and then adb sideload my AK2 zip to fix the likely newer recovery you already had on your device. 👍


    Edit: See my new thread for updated files + step-by-step instructions: https://forum.xda-developers.com/nexus-5x/general/tool-bootloop-death-blod-workaround-t3819497
    12
    Update: I added a universal EX zip, this zip should make your device only use 4 cores, and utilize all 4 cores, so there's no need for flashing a separate boot.img before you flash EX. Also, with this zip, you should be able to flash EX over almost any ROM, and it should work.

    I also added a donation URL to my profile, donations keep me motivated to keep going, and they will be used to help me fund equipment and devices to further advance my android development. Every single donation is appreciated :)
    11
    i tryed all your .img file but noone works with it the 8.0 android oreo version, we are waiting the big update for boot.img cores :) nice work bro :good:

    p.s. im in bootloop

    I'm working on 8.0 right now. Unfortunately it is a challenge due to the changes in android O, but I will try to get it working as fast as I can.
    9
    Update: Welp, for me, school is starting in a couple weeks :( Which means I have to do all my summer assignments (that I had the whole summer to do), in two weeks. Cross Country race season is also starting for me, so I will be less active as a result of those two things. I will try my best to keep maintaining this and helping you guys though.

    Also, I am working on an application to make this process easy for beginners. I wanted to learn C#, so I figured this was a good way to help me learn it. Expect that to come later this week/next week (depending on how lazy I am).

    P.S: HUGE thank you to everyone who donated!! The support of this community is mind-blowing, and it means a lot to me that people appreciate my work enough to donate. Once again, thank you so much :)