Database Users

DEAD!

Hello guys,
A friend of mine gave me his S6EDGE+ because it didnt boot anymore after he woke up. The night before that he installed an update but the phone worked fine after that.
The phone showed this message: http://imgur.com/a/cwLyM
I thought that it was easily fixed by flashing original 7.0 firmware but as you can guess i was wrong... It keeps rebooting right after the "Samsung Galaxy S6 Edge+" screen
So i tried to flash original 6.0.1 firmware but the same result
After that i flashed 7.0 again and after that twrp 7.0 but it never booted into twrp
So i flashed android 6.0.1 and the newest twrp for 6.0.1 but it still didnt booted into recovery and i am not able to boot in recovery.
After that i tried some older versions of twrp for 6.0.1 and it sometimes gave me the error: Recovery is not seandroid enforcing. I tried the same with 7.0 and older twrp versions, same results.
I also tried to flash 5.1.1 but i couldnt flash it.
What i also tried is to flash 7.0 bootloaders and after that 7.0 firwmare and the same for 6.0.1
I'm really desperate and dont know what to do anymore..
Current status: bootloop
I can enter download mode: http://imgur.com/a/XiS6Z

When you say you flashed original firmware, did you use odin to do it? Did you use the firmware from sammobile?
Apologies if it's shows in the pictures, but they aren't showing up on my phone.

1. how about if you try to reflash twrp, full wipe and install a rom?
2. Try fix it with Smart Switch with emergency frimware recovery / emergency device recovery. ?

kdogguk said:
When you say you flashed original firmware, did you use odin to do it? Did you use the firmware from sammobile?
Apologies if it's shows in the pictures, but they aren't showing up on my phone.
Click to expand...
Click to collapse
i can see that the images aren't working, ill fix that in a sec.
Yes i used odin and downloaded everything from sammobile because ive actualy paid them for de downloadspeed

justanpotato said:
1. how about if you try to reflash twrp, full wipe and install a rom?
2. Try fix it with Smart Switch with emergency frimware recovery / emergency device recovery. ?
Click to expand...
Click to collapse
ive flashed several versions of twrp but it never boots in recovery or i get the message recovery is not seandroid enforcing.
I also tried the Smart Switch method but without succes

no, u need learn some things about Binary Vercion, ima sure u have a B3 in this moments, so , download any firmware with Binary 3, if need more infor about that, check here http://forum.gsmhosting.com/vbb/f68...combination-compatibility-w-o-errors-2189001/

ruubs said:
ive flashed several versions of twrp but it never boots in recovery or i get the message recovery is not seandroid enforcing.
I also tried the Smart Switch method but without succes
Click to expand...
Click to collapse
You've never stated the results of your stock firmware flashing, using Odin. This is key, this tells you whether the firmware was flashed correctly or not.. If you picked the wrong stock firmware to flash, Odin will show it "Failed."
If your buddy just updated firmware, then it's likely he's on the newest one, but check in SamMobile to verify if it's accurate. If shows the most current firmware was updated in January or something then he might not be on the most current one, as this shows that he's behind on updating his phone, so it's uncertain which it last updated to.
If I were you, I'd verify first whether the Odin flash passed or not, prior to attempting any custom flashing.. After Odins finished flashing in the upper right corner will either show "Pass" or "Fail," it needs to show "Pass" before you can proceed to do anything else, as this confirm whether the stock firmware flashed correctly or not.
If it doesn't Pass, you have flashed the wrong firmware. Might be good to verify with your buddy, which carrier he had originally. If you indeed have a Samsung S6 Edge+, with the larger 5.7 inch screen, the model numbers begin as so, "SM-G928x" with difference being the "x" at the end, which coincides with whichever carrier it's on, (e.g. "A" for AT&T, "T" for T-Mobile" - U.S. carriers).
It wouldn't be a bad idea to confirm whether you're using the most up to date version of Odin, either. Don't remember what that is but a quick Google search under this topic would do it.
Just for shyts and giggles, you did verify that your PC recognizes the phone, right? And that it lists under "Device Manager" correctly, as well as Odin recognizing it after you plugged it in?
If it does "Pass," it should reboot by itself into the stock firmware since prior to flashing you selected "autoreboot" and "reset time" if it doesn't reboot correctly or gets stuck on the splash screen, unplug it from the PC and manually boot it into stock recovery. Do this by first pressing the following buttons at the same time and holding them till the phone powers off, power button, home button, volume up and volume down.. After it powers off, push and hold, power button, home button and volume up, till the phone boot to stock recovery, amd of course you can let go of the buttons/keys. Then using volume buttons to select factory reset and pressing the power button to confirm the selection. After it factory resets you can then select reboot to system and it should boot normally and you've recovered the phone.
The upper left corner in Odin will show the results of the flash, there shouldn't be a reason for it not booting if it indeed shows "Pass," cuz this confirms firmware flashed correctly, if it shows "Fail" then you flashed the incorrect firmware. You'll need to locate the right one so that Odin shows "Pass," otherwise you wont ever recover your phone, regardless of anything else you find interesting to flash, bootloaders, TWRP, root, ect.. Don't flash anything else till you get the stock firmware flashed correctly. If you're unable to accomplish this then, I'd recommend calling Samsung or your carrier, is it still under warranty? My charging port broke after 2+ years, I have insurance though w/ T-Mobile, called them to see what my options were, was planning on fixing it myself to avoid the $175 insurance deductible, if I made a claim, but as it turns out, since I have insurance, the phones still under warranty and per the CSR, it will continue to hace warranty as long as I pay the $7/month insurance. Thought most warranties are 12 months but I wasn't going to correct her if she was wrong so I went ahead with it and 2 days later new phone came and I sent my broken one back! Old phone has lil scratches on the screen, couple lil dings along the sides, obviously an older phone but now I gotta new one, ita flawless!
It won't to try if this don't work out..
Good luck

Black screen of death after flashing firmware

I have the S7 Edge originally the ATT version but I rooted and flashed the unlocked version firmware. I was trying to unroot the device and restore everything to the factory settings since I am using the trade in program through Samsung and have to send it back in stock. I tried to flash it using Zodin, the Mac version of Odin, but was unable to get it to work because I was not able to get the proper pit file, it always returned with the error that there is a corrupt file. Since I do not have Windows, I could not Flash the firmware using Odin. Out of desperation, I looked online and a website (the article was on Android forums with the title restore stock with flashfire no PC) said that I could use the Android app Flashfire to flash a firmware and return to the factory unrooted settings. I downloaded and inputted the full firmware file for the original AT&T firmware version and checked the boxes to wipe boot, system, internal data, and trusted Zone and also maintain everroot. It seemed to work and was processing with the fast scrolling command text on the black screen but after a few minutes it said there was an error at the very bottom of the screen. Eventually, it restarted but nothing has come up and the screen is black without any light from the LED indicator. I tried to restart it with the power button several times, holding down the power button and the volume down, holding down the home button and the power button, and holding down the power button, volume down, and home button. I left the phone unplugged overnight and plugged it in this morning to see if it would turn on but nothing happens. Any help would be greatly appreciated and I am hoping that I did not brick the phone.

Since Im not sure now if you also tryed to go in download mode again but ussualy you are always able to do that.
If not try to remove battery and put it back in after 10 minuts. And connect it to your laptop and let it charge for a few minuts. Next Hold buttons for dowload mode. Hold em for 5 secconds. Even if still have a blackscreen open samsung kies or switch. One of them has the emergency recovery option. It will detect it then and will say something like you need to repair the software want to continue etc. Lwt it do its thing and make sure you are on the internet. You drink some coffee and give it 30 minuts atleast.
Still not work? Try to put in a spare battery or charge it with another phone. If that not even works. I cant help you.

First of all, I do not have a battery that I can remove. I tried to enter download mode and recovery mode but nothing worked. It will not boot up into any mode.

Just hold the button combination for download mode for 10sec and connect it to a PC with installed smart switch on it. Smart switch should detect your phone, even if the display of the phone stays black.

I tried what you recommended but nothing works still.

I seem to have encountered the same problem, albeit not through exactly the same method. Essentially I managed a full stock firmware flash through ODIN, all the right messages came up and I got a pass from Odin. The phone rebooted and brought up the blue "updating" screen, which very quickly changed to a "removing" screen, at which point the phone froze. When I tried to reboot, the screen went black and now.... nothing. No recovery, no download, no light to indicate that its charging... nothing. My computer doesn't register there is even a device attached.
I've done heaps of flashing and never seen anything like this!
Would greatly appreciate any advice or assistance!

same issue here accept i was just using odin like usual. anyone figure this out yet? the phone was not rooted or anything. i had flashed the g935u firmware and then decided to put it back to stock g935t firmware. then it started doing this.

reflash but this time it check nand erase all

NEVVER EVER CHECK NAND ERASE ALL, dont advise others what you don't know yourself. This is for manufacturer and is not intended for repairing, if you nand erase your phone its just a paper weight then, beyond recoverable. But this issue is caused by wrong partitioning i suppose, but still it must go in download mode, try plugging it in when smartswitch is open in pc while holding home+vol down+power , if it wont detect then i suppose its nand failure due to any reason. And motherboard replacement is required.
Sent from my S7 Edge using XDA Labs

I recommended it because I had the same experience of the black screen and blue led that lights up and I flashed more than 50 times without any result and the solution that was given to me and which walked it's this one

stootie said:
I recommended it because I had the same experience of the black screen and blue led that lights up and I flashed more than 50 times without any result and the solution that was given to me and which walked it's this one
Click to expand...
Click to collapse
If it really did nand erased all, your phone wouldn't even boot, your phone working is a proof it isn't nand erased. What people don't understand is that nand isn't the internal memory, its the non volatile memory holding vital info about functioning of phone just like a bios of computer, so if it is erased you are beyond recoverable damage. Here , i must say i dont know if odin can really nand erase all, because if your phone is working, nand is definitely not erased. And as far as what fixed your issues, there must have been some other reason. But for everyone, leave that option empty just to be safe.
Sent from my S7 Edge using XDA Labs

I was trying to install 935U firmware in my 935V US verizon s7 edge. After installation completed using odin phone rebooted and showed new sim setting something.... after that it went off and now its turning up.
Any help please?

did you find any solution?...plzzz help me i also got the same problem

HEY BRO...FIRST OF ALL , WHOEVER SAID THAT NAND ERASE OPTION AFFECTS PHONE... IM HERE FOR ANSWER. IHAVE FLASHED AND EVERYTIME used nanderase ...my phone feels brand new ..it jst repartitions the size of nand... also adding pit doesnt effect ...your problem is something other ... plug your phone to a good charger whole night.make sure charger is working...then try volume down and home and power into download mode..gudluck

zaighumjawad said:
HEY BRO...FIRST OF ALL , WHOEVER SAID THAT NAND ERASE OPTION AFFECTS PHONE... IM HERE FOR ANSWER. IHAVE FLASHED AND EVERYTIME used nanderase ...my phone feels brand new ..it jst repartitions the size of nand... also adding pit doesnt effect ...your problem is something other ... plug your phone to a good charger whole night.make sure charger is working...then try volume down and home and power into download mode..gudluck
Click to expand...
Click to collapse
Ofcourse it doesn't effect S7 edge, because it DOESNOT wipes the nand.. so its not working simply..
On older phones it will wipe nand totally and thats a dead brick..
First search what nand is.. its the non volatile memory.. or simply nand chip .. if you delete it.. your phone won't be a phone anymore.. its the non volatile memory that is equal to a bios of a computer.. delete non volatile memory and your phone is completely dead..
Thanks to the latest phones that don't erase non volatile memory and instead selecting nand erase with s7 edge simply deletes userdata before flashing.. which is equal to a normal hard reset ..
Sent from my S7 Edge using XDA Labs

Bricked S8s after software update.

Hi. Browsed for ages and always come here for answers.
Here's my problem.
2x S8s. SM-950f.
Updated to most recent software through software update. Both phones were glitchy and crashing and just generally irritating after.
Factory data reset etc. This did not resolve the problems, also led to one of them having issues with FRP (annoying)
Used Odin to try and flash the latest firmware (from sammobile, UK BTU) after flashing both, they reset and powered on. Got stuck at the S8 screen.
Restarted then both were at the "an error occurred during update" screen.
Managed to get back to download screen. Re checked the software and model numbers, even that the bootloader was the correct version etc. All was fine.
Connected to Odin, shows that it is connected, but nothing happens when clicking start.
Now after attempting that, both phones will not power on.
(One will when placed on the wireless charger, but just sticks at S8 screen) and download mode or reset screen can not be accessed. So, not exactly happy. And totally out of ideas
Any suggestions, beyond taking it to a shop to see if anyone can help.

yes .....dont tuch the phones for 24 hours let the battery die ...it will...connect to pc and then try download mode....u may need to press combination for like 1 minute to get to download mode....flash twrp reboot directly into it when odin says successfully .....wipe system data ....dont turn on phone download any custom rom flash and enjoy.....it will trip knox but worth than getting a new board....

Okay, will give that a try.
TWRP?

TWRP install
https://dl.twrp.me/dreamlte/twrp-3.2.3-0-dreamlte.img.tar.html: Download link for twrp SM-G950F (dreamlte)
Just said, wait until your device powers off due battery insufficience. Plug cable and hold at the same moment vol(down)+bixby+power. Then press vol(up) at the warning screen to proceed to odin mode. Let it charging a while like 1 h. Then unplug it and plug it to your pc. In Odin select ap the previous downloaded file. Take your mobile in your hand. With one hand, prepare your fingers to vol(up)+bixby and with the other hand start the flashibg process. Be careful, and take your hand directly from the mouse if you clicked start in odin, and position your one finger to power button, but dont click. If odin start pass, press immidiately the buttons (vol(up)+bixby+power) and let it to start into recovery. If you arrived to recovery, reply to us if not search for help!!!
Good luck
memreb

Still trying to get them on. Powered on to download mode but only for a couple of seconds and switched off again.

Can't get them to power on. Buggered

simonboyle said:
Still trying to get them on. Powered on to download mode but only for a couple of seconds and switched off again.
Click to expand...
Click to collapse
i have the same issue with my s8 but when i boot in download mode the screen goes black but if i press volupe up it connect to odin with black screen you shoud give it a try

Will try that

Okay, downloaded TWRP, can get phone calls nected to Odin but when I extract TWRP it doesn't give a valid file type.
Am I being dumb.
No files appear that Odin will recognise.
Also just shows as "recovery" no .tar or anything

Ignore above. Corrupted download.
Sorted.
Now when flashing TWRP is gets to a fail due to
"Complete (write) fail

Hi you should try flashing official firmware

itac47 said:
Hi you should try flashing official firmware
Click to expand...
Click to collapse
The point of the thread us that I am.unable to do that.
So kinda useless post buddy.
Read the OP.

Anyone want two bootlooped S8s? Hahahaha

simonboyle said:
Anyone want two bootlooped S8s? Hahahaha
Click to expand...
Click to collapse
Not sure what stage your at and maybe some more useless ideas
1. Trying to flash twrp is kinda of useless if you can't get into your system need oem unlock for that.
2. Have you tried taking out Sim card and SD card and reboot.
3. If you can at least boot try smart switch as it has a emergency recovery option.
4. Trying rebooting in safe mode.

All been attempted

SM-N910F no Boot, constant restarting!

Hello,
The phone was updated to latest available firmware. This is when the problems started.. First off it would turn off after about two minutes and get quite hot, so I replaced the battery.
After battery replacement, it worked OK for a few days, then started getting hot again.. So i pulled battery and left to cool.
Now the phone does not boot at all, constantly rebooting, even when plugging in the charger. Screen flashes with battery charge symbol then reboots. I can however get into Download Mode..
This is what i receive;
ODIN MODE (HIGH SPEED)
PRODUCT NAME:SM-N910F
CURRENT BINARY: Custom
SYSTEM STATUS: Official
REACTIVATION LOCK: OFF
KNOX WARRANTY VOID: 0x1 (4)
QUALCOM SECUREBOOT: ENABLE (CSB)
RP SWREV: S1, T1, R1, A1, P1
SECURE DOWNLOAD : ENABLE
UDC START
I have no idea why it says Current Binary - Custom.. As far as I know the phone is Stock and I bought it new.
Hope someone can help me please!
Thanks!

*Update*
Played around with it this morning, managed to flash an older ROM in Download Mode... but upon reboot... stuck in bootloop
Any input how to get the phone working again please?
Much appreciated!

Bootlooping after flash the stock rom is to be expected sometimes.
What you have to do in that case, is boot in recovery (stock recovery) and perform a factory reset, then wipe user data and in the end REBOOT SYSTEM.
That may be caused by old data still in your phone, that prevent your phone from booting up.
I would also try and change my charger and cable, in case something in wrong there (apart from the batter) and the phone cannt charge it properly.
Even better, if you could use an external charger to charge your battery and then put battery back to it, just to make sure there is not something wrong in the charging process.
Have you tried to charge your phone, while be on RECOVERY? That could also help.
So, in conclusion
Make sure your battery is charged
Boot in stock recovery, factory reset and wipe data
reboot system.
Good luck

logosA said:
Bootlooping after flash the stock rom is to be expected sometimes.
What you have to do in that case, is boot in recovery (stock recovery) and perform a factory reset, then wipe user data and in the end REBOOT SYSTEM.
That may be caused by old data still in your phone, that prevent your phone from booting up.
I would also try and change my charger and cable, in case something in wrong there (apart from the batter) and the phone cannt charge it properly.
Even better, if you could use an external charger to charge your battery and then put battery back to it, just to make sure there is not something wrong in the charging process.
Have you tried to charge your phone, while be on RECOVERY? That could also help.
So, in conclusion
Make sure your battery is charged
Boot in stock recovery, factory reset and wipe data
reboot system.
Good luck
Click to expand...
Click to collapse
I flashed the Stock Firmware but upon reboot just back to bootloop... The only operation i can do is VOL Down + HOME + POWER to Download Mode
I am unable VOL UP + HOME + POWER.. it just reboots the phone!
Also battery does not seem to be charging while in the phone, because it turns itself on and then stuck in loop! so frustrating!
any more help appreciated?
Thanks !!

I have now managed to flash a Stock 4.4.4 firmware with Auto Reboot, F. Reset Time and NAND Erase All ticked... Still no joy!
Once the firmware is installed the phone reboots then back to bootloop

iamserver2016 said:
I have now managed to flash a Stock 4.4.4 firmware with Auto Reboot, F. Reset Time and NAND Erase All ticked... Still no joy!
Once the firmware is installed the phone reboots then back to bootloop
Click to expand...
Click to collapse
look what you have to do:
download this (windows ) application and install it on your windows pc.
This is the application that will allow you to search and download the latest stock rom for your phone.
It connect to Samsung servers and in very little time you will have a new stock rom on your pc.
choose samfirm 3.06
extract it on a folder on your PC and run samfirm.exe
in the opening menu type
SM-N910F(or T/V/W etc your phones model)
REGION..... xxx (your region code)
these 2 you can find in a sticker under your battery if you open the phone and take off the battery, if you already dont know that
tick '' BINARY NATURE''
(If you dont tick BINARY...'' you will get the whole stock rom in one file xxxx.tar.md5 to flash it in the oding using the AP tab)
CHECK UPDATES>DOWNLOAD
THIS WAY YOU WILL GET THE LATEST STOCK ROM FOR YOUR PHONE/REGION
Binary nature means the rom split in 4 files
1. BL- bootloader
2.AP - rom
3. CP - modem
4. CSC - Customer support code(region/country)
This is what a stock rom is consist of
this kind of rom is also called REPAIR ROM, because you can use it to repair your phone.
If you look in odin you will find exactly these 4 entries.
So you can put each in the appropriate box and flash them all and so have a stock rom.
UNtick autoreboot, tick NAND ERASE ALL
push start
Wait until rom flashes and ODIN SAYS COMPLETED
take off your battery and wait 2-3 seconds.
Put it back in and press and hold power+ volume UP + home
Wait untill see samsung logo appears but not let go buttons
AFTER Samsung logo goes and come again, let the buttons.
You will boot to stock recovery.
Navigate with volume buttons and perform FACTORY RESET and then Wipe user data
Then REBOOT SYSTEM.
PS make sure you have oding == or newer than 3.13.3
take it from here:
https://odindownloader.com/download/odin3-v3-13-3
*****DONT LAUGH ON THIS
before do all the above
TAKE OFF THE BACK COVER OF YOUR PHONE , your sdcard, your battery and sim
Put your phone in a zip bag and put it in your freezer for 5 minutes
Take it off the freezer, put battery and sim card on it and do what I have wrote above
Hopefully it will solve your problem and everything will go as we all wish to.

logosA said:
look what you have to do:
download this (windows ) application and install it on your windows pc.
This is the application that will allow you to search and download the latest stock rom for your phone.
It connect to Samsung servers and in very little time you will have a new stock rom on your pc.
choose samfirm 3.06
extract it on a folder on your PC and run samfirm.exe
in the opening menu type
SM-N910F(or T/V/W etc your phones model)
REGION..... xxx (your region code)
these 2 you can find in a sticker under your battery if you open the phone and take off the battery, if you already dont know that
tick '' BINARY NATURE''
(If you dont tick BINARY...'' you will get the whole stock rom in one file xxxx.tar.md5 to flash it in the oding using the AP tab)
CHECK UPDATES>DOWNLOAD
THIS WAY YOU WILL GET THE LATEST STOCK ROM FOR YOUR PHONE/REGION
Binary nature means the rom split in 4 files
1. BL- bootloader
2.AP - rom
3. CP - modem
4. CSC - Customer support code(region/country)
This is what a stock rom is consist of
this kind of rom is also called REPAIR ROM, because you can use it to repair your phone.
If you look in odin you will find exactly these 4 entries.
So you can put each in the appropriate box and flash them all and so have a stock rom.
UNtick autoreboot, tick NAND ERASE ALL
push start
Wait until rom flashes and ODIN SAYS COMPLETED
take off your battery and wait 2-3 seconds.
Put it back in and press and hold power+ volume UP + home
Wait untill see samsung logo appears but not let go buttons
AFTER Samsung logo goes and come again, let the buttons.
You will boot to stock recovery.
Navigate with volume buttons and perform FACTORY RESET and then Wipe user data
Then REBOOT SYSTEM.
PS make sure you have oding == or newer than 3.13.3
take it from here:
https://odindownloader.com/download/odin3-v3-13-3
*****DONT LAUGH ON THIS
before do all the above
TAKE OFF THE BACK COVER OF YOUR PHONE , your sdcard, your battery and sim
Put your phone in a zip bag and put it in your freezer for 5 minutes
Take it off the freezer, put battery and sim card on it and do what I have wrote above
Hopefully it will solve your problem and everything will go as we all wish to.
Click to expand...
Click to collapse
Thank you for your instructions and reply!! Unfortunately, this has not solved my issues with the phone. I am reluctant to try the freezer method tbh lol.
I might buy a new motherboard.

iamserver2016 said:
Thank you for your instructions and reply!! Unfortunately, this has not solved my issues with the phone. I am reluctant to try the freezer method tbh lol.
I might buy a new motherboard.
Click to expand...
Click to collapse
yes, I thought so.
I have been there you know.
I strangled almost a year trying to fix my damaged Note 4 (910f) which had the emmc bug.
Finally, although I did manage to flash arom (many actually), the only thing that solve the problem was to replace my motherboard.
Take look to some extremely actions, until motherboard replace, just to have an idea what we are talking about.
Its hard, its not 100% effective, but since your phone is still managing to even power up and go to recovery, or download mode, its not that damaged my mine was.
Also keep in mind, this is temporary, eventually, emmc will be complete damage(depending of the use), so motherboard will be to permanent solution only
Good luck my friend
https://forum.xda-developers.com/no...ebrick-img-t3488114/post71178231#post71178231
https://forum.xda-developers.com/note-4/help/note-4-freezing-restarting-t3348821
https://forum.xda-developers.com/no...ebrick-img-t3488114/post71184710#post71184710

logosA said:
yes, I thought so.
I have been there you know.
I strangled almost a year trying to fix my damaged Note 4 (910f) which had the emmc bug.
Finally, although I did manage to flash arom (many actually), the only thing that solve the problem was to replace my motherboard.
Take look to some extremely actions, until motherboard replace, just to have an idea what we are talking about.
Its hard, its not 100% effective, but since your phone is still managing to even power up and go to recovery, or download mode, its not that damaged my mine was.
Also keep in mind, this is temporary, eventually, emmc will be complete damage(depending of the use), so motherboard will be to permanent solution only
Good luck my friend
https://forum.xda-developers.com/no...ebrick-img-t3488114/post71178231#post71178231
https://forum.xda-developers.com/note-4/help/note-4-freezing-restarting-t3348821
https://forum.xda-developers.com/no...ebrick-img-t3488114/post71184710#post71184710
Click to expand...
Click to collapse
Thanks for replying again and with all the help/knowledge! :good: much appreciated!!
I am currently trying the freezer method but only with battery? Does it have to be full device?
Next stop, new motherboard... I feel defeated.
Thanks!

iamserver2016 said:
Thanks for replying again and with all the help/knowledge! :good: much appreciated!!
I am currently trying the freezer method but only with battery? Does it have to be full device?
Next stop, new motherboard... I feel defeated.
Thanks!
Click to expand...
Click to collapse
you have to freeze the phone.
Not battery, not sim card, not sdcard.
The thing is that in Note 4, CPU and emmc are one under the other, so overheating of the CPU, trying to flash the emmc, is making their contacts lose, so flashing is failing.
Keeping the phone cold, dont let that happen and eventually(maybe), flashing and booting up, which is the most heat producing process, completes and then phone can continue easier.
As I have already told you, this is a big MAYBE and not a final solution.
Changing the motherboard will be.
Took me 15 days to manage to boot it up for the first time.
Manage to keep it with broken motherboard almost a year, then one day, I saw smoke coming out of the usb when charging it. That was the end.
New board and charging port has made my Note 4 like new.

Galaxy S8 hardcore bootloop

Hi everyone,
When I tried to restart my Galaxy s8 it entered some kind of hardcore bootloop where I couldn't stop it from looping except by entering the download mode, letting it drain the battery or simply disconnecting the battery. When I exit the download mode it will just continue looping. It is also impossible to enter the recovery menu, which makes things much worse.
I have tried opening the phone and disconnecting everything except power supply (either battery or charger) and screen to see whether some detachable component is failing it (camera, speaker, etc.). But nothing.
I have also tried reinstalling the firmware (BL + CP + AP + HOME_CSC), it installs successfully but it doesn't fix the bootloop. I have also tried two most recent firmware, also without success. Somewhere on the Internet I have found a recommendation to install the firmware from June 2017 which I have tried but it doesn't work anymore because it's not possible to install earlier version of firmware on Samsung phones anymore (since November 2019 I believe).
Now I have started to believe that this could be a motherboard failure but it doesn't really make whole lot of sense because the phone can enter the download mode and reinstall firmware just fine. Or maybe there is a component which can make it able to enter the download mode, but nothing else would work?
Has anyone experienced something like this? How could it be fixed? Any recommendations? Is there any hope?
Edit: The phone has never been rooted, means it is in its original software state (currently on Android Pie with build number G950FXXS8DTC1). Is there any way to install anything on it (custom ROM, TWRP, etc.)?

Come on guys! Please don't tell me that I've tried everything and exhausted all the possibilities...

If there is still warranty on the phone, then send it in for repair. If there isn't, then I would take it to a repair shop and see what they can do about it. It is wierd that you can enter download mode, but can't flash stock firmware. I think it might be a motherboard problem

Nevin1901 said:
If there is still warranty on the phone, then send it in for repair. If there isn't, then I would take it to a repair shop and see what they can do about it. It is wierd that you can enter download mode, but can't flash stock firmware. I think it might be a motherboard problem
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Unfortunately, there's no warranty and I'm pretty sure no one would repair this kind of failure for a price lower than the price of a used and fully functional Galaxy s8.
Yes, I can enter the download mode and I CAN flash stock firmware, but I can flash only the ones which are newer or the same as the one installed on the phone.
Yes, most probably it's a motherboard failure. In some YouTube videos I have seen people fixing similar issues by replacing the CPU (which I am unable to do by myself). Other suggestion I found on iFixit says that I could soak my motherboard in 99% Isopropyl alcohol and leave it overnight in it (I am going to try this if I get my hands on the alcohol).
BTW: One interesting thing I experienced while flashing the phone without its battery connected is that the phone's screen will go black when you press 'Start' button in Odin, but nevertheless the installation will finish normally and you can track its progress in Odin. At the end you'll need to restart your phone manually.

roberta-xda said:
Hi everyone,
When I tried to restart my Galaxy s8 it entered some kind of hardcore bootloop where I couldn't stop it from looping except by entering the download mode, letting it drain the battery or simply disconnecting the battery. When I exit the download mode it will just continue looping. It is also impossible to enter the recovery menu, which makes things much worse.
I have tried opening the phone and disconnecting everything except power supply (either battery or charger) and screen to see whether some detachable component is failing it (camera, speaker, etc.). But nothing.
I have also tried reinstalling the firmware (BL + CP + AP + HOME_CSC), it installs successfully but it doesn't fix the bootloop. I have also tried two most recent firmware, also without success. Somewhere on the Internet I have found a recommendation to install the firmware from June 2017 which I have tried but it doesn't work anymore because it's not possible to install earlier version of firmware on Samsung phones anymore (since November 2019 I believe).
Now I have started to believe that this could be a motherboard failure but it doesn't really make whole lot of sense because the phone can enter the download mode and reinstall firmware just fine. Or maybe there is a component which can make it able to enter the download mode, but nothing else would work?
Has anyone experienced something like this? How could it be fixed? Any recommendations? Is there any hope?
Edit: The phone has never been rooted, means it is in its original software state (currently on Android Pie with build number G950FXXS8DTC1). Is there any way to install anything on it (custom ROM, TWRP, etc.)?
Click to expand...
Click to collapse
I have an S8 with a similar issue. I can get to recovery menu but following similar steps to above by flashing combination firmware and still got stuck in bootloop. Subscribing to this thread in case anyone has a fix.

Just wanted to share a video I found. This is exactly how my s8 bootloops: https://youtu.be/gBlIcAJzgVA?t=5
PS: Obviously, the solution explained in the video didn't work for me.
PS2: This issue started by just restarting the phone. Before the restart it was in a perfect state, fully working, never had any hardware issues. Although there were some software issues introduced by an update (October or November 2019 I think) which made my phone need to restart 2 times to fully boot once if I wanted to restart it or turn it on after it was turned off. But those software issues were solved by a latter software update.

kjaved373 said:
I have an S8 with a similar issue. I can get to recovery menu but following similar steps to above by flashing combination firmware and still got stuck in bootloop. Subscribing to this thread in case anyone has a fix.
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Click to collapse
i know it's already an old comment, but was your phone also completely stock?

Leberkuchen said:
i know it's already an old comment, but was your phone also completely stock?
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Click to collapse
Yeah I believe so.