Database Develop

[Q] Bootloop - After PingPong Root and installation of an Application

Good morning....I am hoping someone has some advice. I have run into a situation I have never ran into before and can not seem to find a work around. Yesterday, I ran the pingpong root application and it rooted the phone fine. My issue came after downloading an application that apparently wrote something to my file system to cause this issue. Upon, rebooting my phone it will not boot into the operating system. It loads the Samsung splash screen and then shuts down and reboots right back to the Samsung splash screen over and over again. I was able to access the area where you can wipe the cache and return the phone back to the state when it was bought and it seems to run those fine but when rebooting it simply keeps looping. I had not turned on developer options allowing me to turn on USB debugging so now I can not use Odin or anything else to sideload the stock software back onto the phone. I am not sure what to do because none of the applications will not recognize my device so that I can fit is. Does anyone have any suggestions before I take it into AT&T to see if they can fix it?
Thanks......I am now forced to use an old Iphone (which is terrible) and I just want my android back.

This is for the Verizon S6 but it applies to the AT&T S6 as well.
Download the full ODIN tar files from here.
http://forum.xda-developers.com/att-galaxy-s6/general/odin-tar-files-sm-g920a-t3103835
Follow these instructions in the Verizon thread.
http://forum.xda-developers.com/verizon-galaxy-s6/general/verizon-s6-stock-restore-files-t3096000

Capt said:
This is for the Verizon S6 but it applies to the AT&T S6 as well.
Download the full ODIN tar files from here.
http://forum.xda-developers.com/att-galaxy-s6/general/odin-tar-files-sm-g920a-t3103835
Follow these instructions in the Verizon thread.
http://forum.xda-developers.com/verizon-galaxy-s6/general/verizon-s6-stock-restore-files-t3096000
Click to expand...
Click to collapse
Do you think this will work even though I do not have USB debugging on? I will take a look and give it a try and let you know...thanks

scruff72 said:
Do you think this will work even though I do not have USB debugging on? I will take a look and give it a try and let you know...thanks
Click to expand...
Click to collapse
Yes it will work. I did it on my phone because I broke the ROM by uninstalling too many system apps.

Capt said:
Yes it will work. I did it on my phone because I broke the ROM by uninstalling too many system apps.
Click to expand...
Click to collapse
Do you know which version of Odin I should download and maybe a link on XDA where it is available?
Thanks again

Capt said:
This is for the Verizon S6 but it applies to the AT&T S6 as well.
Download the full ODIN tar files from here.
http://forum.xda-developers.com/att-galaxy-s6/general/odin-tar-files-sm-g920a-t3103835
Follow these instructions in the Verizon thread.
http://forum.xda-developers.com/verizon-galaxy-s6/general/verizon-s6-stock-restore-files-t3096000
Click to expand...
Click to collapse
Odin will not connect to my phone. It does not recognize it. I have downloaded the phone drivers directly from Samsung and installed them but no matter the port or computer I connect it to it is not recognized? Any ideas?

Capt said:
This is for the Verizon S6 but it applies to the AT&T S6 as well.
Download the full ODIN tar files from here.
http://forum.xda-developers.com/att-galaxy-s6/general/odin-tar-files-sm-g920a-t3103835
Follow these instructions in the Verizon thread.
http://forum.xda-developers.com/verizon-galaxy-s6/general/verizon-s6-stock-restore-files-t3096000
Click to expand...
Click to collapse
Also, my phone does not have USB debugging activated and I can not get into it to turn it on......should that be an issue?

scruff72 said:
Do you think this will work even though I do not have USB debugging on? I will take a look and give it a try and let you know...thanks
Click to expand...
Click to collapse
I guess I am going to have to take it in because Odin will not stay connected to my phone. It will connect entering the splash screen for a brief second and then it immediately disconnects and when I go into the area to wipe and reboot etc by holding the volume up + Home + power and then releasing power at correct time it never connects or recognizes my phone.
If anyone has any input that would be great......just a little more info...at the bottom it says dm-verify verification failed....
What does that mean?

You have to put the phone in download mode by holding the volume down + Home + power and then volume up when you see the messages for odin to recognize it and work properly. When in download mode you see NO splash screen. No need to have debug mode on to enter download mode.
scruff72 said:
I guess I am going to have to take it in because Odin will not stay connected to my phone. It will connect entering the splash screen for a brief second and then it immediately disconnects and when I go into the area to wipe and reboot etc by holding the volume up + Home + power and then releasing power at correct time it never connects or recognizes my phone.
If anyone has any input that would be great......just a little more info...at the bottom it says dm-verify verification failed....
What does that mean?
Click to expand...
Click to collapse

wp4jot said:
You have to put the phone in download mode by holding the volume down + Home + power and then volume up when you see the messages for odin to recognize it and work properly. When in download mode you see NO splash screen. No need to have debug mode on to enter download mode.
Click to expand...
Click to collapse
When I had the S4 if I didnt have debugging enabled nothing would work via download mode. It would connect to odin but then that would be it.

Capt said:
This is for the Verizon S6 but it applies to the AT&T S6 as well.
Download the full ODIN tar files from here.
http://forum.xda-developers.com/att-galaxy-s6/general/odin-tar-files-sm-g920a-t3103835
Follow these instructions in the Verizon thread.
http://forum.xda-developers.com/verizon-galaxy-s6/general/verizon-s6-stock-restore-files-t3096000
Click to expand...
Click to collapse
Will that .tar work on the AT&T Edge also?

OEM Unlock Option Missing

Hi all,
I am trying to root my T810 according to the tutorial (the one from Android Biits).
It says I have to activate the "OEM Unlock" Option. I have managed to activate the Developer Options but "OEM Unlock" is simply not there.
Can anybody give me a hint, please?
BTW: Sorry for posting here but I was not allowed to post in Development.
Cheers,
hobo

Trying to figure out the same thing. Reading here I found that if it was unavailable after enabling developer options to go to settings/find my phone and disable the reactivation lock and then it would become so but that switch doesn't exist in find my phone to disable. Perhaps something changed in an update?

hobo110 said:
Hi all,
I am trying to root my T810 according to the tutorial (the one from Android Biits).
It says I have to activate the "OEM Unlock" Option. I have managed to activate the Developer Options but "OEM Unlock" is simply not there.
Can anybody give me a hint, please?
BTW: Sorry for posting here but I was not allowed to post in Development.
Cheers,
hobo
Click to expand...
Click to collapse
If you don't see the option in the Developer Option Settings, then you shouldn't need to enable it.
Fallow this video root guide?
http://forum.xda-developers.com/showthread.php?t=3224788

Hello,
before I open a new topic I thought it might be better to update thins one. Hopefully somebody reads this and can help me.
I have a Galaxy Tab S2 at home and want to give it some new "life" with the newest LineageOS (currently runs on Samsung Stock Android 7.0).
I wanted to flash a recovery in order to flash LineageOS. Problem is I'm already stuck one step before since I there is no "OEM unlock" point under the developer options.
Is there a way to fix this or a workaround?
BR

35P said:
Hello,
before I open a new topic I thought it might be better to update thins one. Hopefully somebody reads this and can help me.
I have a Galaxy Tab S2 at home and want to give it some new "life" with the newest LineageOS (currently runs on Samsung Stock Android 7.0).
I wanted to flash a recovery in order to flash LineageOS. Problem is I'm already stuck one step before since I there is no "OEM unlock" point under the developer options.
Is there a way to fix this or a workaround?
BR
Click to expand...
Click to collapse
When did you switch dev opt on?
Sometimes the OEM unlock switch is only seen after a day or two after dev opt are switched on.

bmwdroid said:
When did you switch dev opt on?
Sometimes the OEM unlock switch is only seen after a day or two after dev opt are switched on.
Click to expand...
Click to collapse
Hey,
that must been some time ago. Months, if not already a year or more.
BR

35P said:
Hey,
that must been some time ago. Months, if not already a year or more.
BR
Click to expand...
Click to collapse
Perhaps option is gone with an update you made.
Can't remember if it was there when I got my T810 only found it on my T825.
Did you try to flash TWRP already?
With my several flashs on the T825 I once forgot to activate it, flashing TWRP worked but it didn't boot up afterwards.
Then flashing stock again made it boot again.

bmwdroid said:
Perhaps option is gone with an update you made.
Can't remember if it was there when I got my T810 only found it on my T825.
Did you try to flash TWRP already?
With my several flashs on the T825 I once forgot to activate it, flashing TWRP worked but it didn't boot up afterwards.
Then flashing stock again made it boot again.
Click to expand...
Click to collapse
Good morning,
isn't it necessary to have the TWRP for flashing?
I tried to flash TWRP with ODIN but it wasn't successful. That's why I wanted to start the recovery mode.
BR

35P said:
Good morning,
isn't it necessary to have the TWRP for flashing?
I tried to flash TWRP with ODIN but it wasn't successful. That's why I wanted to start the recovery mode.
BR
Click to expand...
Click to collapse
Of course it is.
Was just a question if you tried already even without OEM unlock.
What did Odin say about not being successful?
Which Odin and TWRP did you use?
Btw which S2 is yours?

bmwdroid said:
Of course it is.
Was just a question if you tried already even without OEM unlock.
What did Odin say about not being successful?
Which Odin and TWRP did you use?
Btw which S2 is yours?
Click to expand...
Click to collapse
I have the T810, Odin version is Odin3-v3.14.4, TWRP is twrp-3.3.1-0-gts210vewifi.img.
I saw the COM port up but it couldn't establish connection.

35P said:
I have the T810, Odin version is Odin3-v3.14.4, TWRP is twrp-3.3.1-0-gts210vewifi.img.
I saw the COM port up but it couldn't establish connection.
Click to expand...
Click to collapse
I've used twrp-3.3.1-0-gts210wifi.img.
What is the ve version for?
Tried older Odins already?

Think you've chosen the wrong one, or it's not a T810 for this has 9.7".

bmwdroid said:
I've used twrp-3.3.1-0-gts210wifi.img.
What is the ve version for?
Tried older Odins already?
Click to expand...
Click to collapse
Good question, maybe I picked the wrong one.
No, but I'll try.
So I should try to flash the TWRP without Recovery Mode, so basically the tablet connected to the PC?
Edit: The ve version is for the newer model, since I ordered my in 2016 I thought it's that one.

bmwdroid said:
Of course it is.
Was just a question if you tried already even without OEM unlock.
What did Odin say about not being successful?
Which Odin and TWRP did you use?
Btw which S2 is yours?
Click to expand...
Click to collapse
So I tried with a different ODIN version and the (hopefully) correct twrp file and got this message after a while.
I couldn't upload the picture, hopefully this link works: https://ibb.co/zH0FDdx
Just to make sure I am doing everything right: Tablet is turned on and connected via USB with the PC. I start Oding, select the TWRP file in the row "AP" and start the flash?

35P said:
So I tried with a different ODIN version and the (hopefully) correct twrp file and got this message after a while.
I couldn't upload the picture, hopefully this link works: https://ibb.co/zH0FDdx
Just to make sure I am doing everything right: Tablet is turned on and connected via USB with the PC. I start Oding, select the TWRP file in the row "AP" and start the flash?
Click to expand...
Click to collapse
Just to clarify : So I understand correctly that T810 is yours? Then the gts210wifi is the one to take.
If you mean "Download Mode" with "turned on" you're right.
If not, activate Dwnld mode 'cause that's the only way you can use Odin.
tar.md5 in AP is correct.
And deactivate "Auto reboot".
Restart manually directly into new TWRP.
Otherwise you see that the Samsung recovery gets revived if it starts by itself without you pressing the appropriate buttons to go into recovery.

bmwdroid said:
Just to clarify : So I understand correctly that T810 is yours? Then the gts210wifi is the one to take.
If you mean "Download Mode" with "turned on" you're right.
If not, activate Dwnld mode 'cause that's the only way you can use Odin.
tar.md5 in AP is correct.
And deactivate "Auto reboot".
Restart manually directly into new TWRP.
Otherwise you see that the Samsung recovery gets revived if it starts by itself without you pressing the appropriate buttons to go into recovery.
Click to expand...
Click to collapse
Ok, I understand. The problem is I can't "activate" the download mode, this is how it should be done or? With the device powered off, hold Home + Volume Down + Power.
It just boots normal if I press and hold this combo.

35P said:
Ok, I understand. The problem is I can't "activate" the download mode, this is how it should be done or? With the device powered off, hold Home + Volume Down + Power.
It just boots normal if I press and hold this combo.
Click to expand...
Click to collapse
Might be on this device just Vol dwn + pwr.
Mine has hardware button probs, so I'm not gonna try if not necessary.

I have the same issue here... No OEM Unlock option. Flashing TWRP with Heimdall (main machine is Linux) and Odin (backup Windows machine) seems to work, but I just can't get into the TWRP recovery.
The steps I followed:
Developer options and USB debugging are on
Tablet is in Download mode
Then I use the heimdall command to flash the TWRP image with --no-reboot, it seems to work succesfully (ODIN says "Pass!")
unplug the USB and use HOME + Vol Down + Power to get it to reboot
the SECOND I see the screen go black, I use HOME + Vol Up + Power
However, the Screen gets stuck in "Samsung Galaxy Tab S2 - powered by Android" no matter how long I hold the combination pressed.
Any tips?

tyarcher79 said:
I have the same issue here... No OEM Unlock option. Flashing TWRP with Heimdall (main machine is Linux) and Odin (backup Windows machine) seems to work, but I just can't get into the TWRP recovery.
The steps I followed:
Developer options and USB debugging are on
Tablet is in Download mode
Then I use the heimdall command to flash the TWRP image with --no-reboot, it seems to work succesfully (ODIN says "Pass!")
unplug the USB and use HOME + Vol Down + Power to get it to reboot
the SECOND I see the screen go black, I use HOME + Vol Up + Power
However, the Screen gets stuck in "Samsung Galaxy Tab S2 - powered by Android" no matter how long I hold the combination pressed.
Any tips?
Click to expand...
Click to collapse
Try another TWRP for Galaxy Tab S2 (ensure it's the wifi or LTE version)
I hope it helps

Stuck on the Samsung boot animation after disabling SuperUser on rooted N920C

I have been trying to fix the random reboots that came with the SpaceX kernal for Note 5 N920C and now I cannot boot my phone.
I have tried wiping all data and clearing cache. I cannot find a stock kernel.

jinxsimpson said:
I have been trying to fix the random reboots that came with the SpaceX kernal for Note 5 N920C and now I cannot boot my phone.
I have tried wiping all data and clearing cache. I cannot find a stock kernel.
Click to expand...
Click to collapse
Your phone should now tell you that you have no operating system. And that should be why you're stuck in a bootloop. In this case you will need to install the original firmware back on your phone and start the rooting process over again. The easiest way to reinstall the original operating system is to use Samsung Smart Switch on PC.

eNubiX said:
Your phone should now tell you that you have no operating system. And that should be why you're stuck in a bootloop. In this case you will need to install the original firmware back on your phone and start the rooting process over again. The easiest way to reinstall the original operating system is to use Samsung Smart Switch on PC.
Click to expand...
Click to collapse
I'm not sure where my phone is from and I need to know that on Sammobile to get the right firmware. On my warranty card under Country it says Pays, [Some Arabic writing].

jinxsimpson said:
I'm not sure where my phone is from and I need to know that on Sammobile to get the right firmware. On my warranty card under Country it says Pays, [Some Arabic writing].
Click to expand...
Click to collapse
If you use Samsung Smart Switch, it will ask you for the model of your phone, and the Serial number. Then it will find the right firmware for you. The way you would get to that information on your phone is to boot in download mode.
"While the phone is off, press and hold the volume down button, power button, and home button at the same time. As soon as the phone starts to boot, let go of the power button while STILL holding the volume down, and home button."
Your phone should boot into a minty greenish screen. Press the volume down button again and it should give you the SN for the phone. That should help in locating the correct firmware for your phone.

Flash my SkyHigh kernel and should boot. Will auto root again.
Link ? Search. ..

eNubiX said:
If you use Samsung Smart Switch, it will ask you for the model of your phone, and the Serial number. Then it will find the right firmware for you. The way you would get to that information on your phone is to boot in download mode.
"While the phone is off, press and hold the volume down button, power button, and home button at the same time. As soon as the phone starts to boot, let go of the power button while STILL holding the volume down, and home button."
Your phone should boot into a minty greenish screen. Press the volume down button again and it should give you the SN for the phone. That should help in locating the correct firmware for your phone.
Click to expand...
Click to collapse
If you mean the SM number, I have that along with an IMEI and other information that came with the phone. Right now my problems seem to be:
Cannot flash any custom ROMs because I get stuck on "NAND write start!!" on ODIN. I have tried multiple ROMs, multiple USB ports and multiple versions of ODIN.
My computer drivers for my phone seem to fail after about a minute of using my phone causing my phone to be seen as an unrecognized device. I have tried re-installing the drivers many times.
When I go into smart switch it never recognizes my phone. When I plug it in on the Download Screen it just says "Connecting..." and eventually says my device is unsupported.

Okay, here is an update.
I tried initializing my phone after smart switch failed to connect to my device and after putting in a serial and model name it says that the N920C does not support initializing.

jinxsimpson said:
Okay, here is an update.
I tried initializing my phone after smart switch failed to connect to my device and after putting in a serial and model name it says that the N920C does not support initializing.
Click to expand...
Click to collapse
hi,
As far as i know Smart Switch does not support./work on rooted devices..?
I might be wrong, but this is what i have read in other similar threads/post in past.
Plse check, this fact to be sure, otherwise you wasting time trying to get it to work.
Good luck
post note.
Stock kernel is included in stock Rom.
If you try to flash old stock Rom it apparently won't work(re bootloader updated etc) . It has to be the correct latest stock Rom for your particular device! not just any Rom..?
I also noted it has to be Odin v 3. 10.7 ? something /i believe.
plse note
i can't really say for sure as,
My Note5 is not rooted...... yet all my other devices ..... Note 2.. 3....4 is !
O, yes i also have N920 C device (not rooted) and Smart Switch works fine.

jinxsimpson said:
Okay, here is an update.
I tried initializing my phone after smart switch failed to connect to my device and after putting in a serial and model name it says that the N920C does not support initializing.
Click to expand...
Click to collapse
It kind of sounds like zit is a driver problem. You said you did a full wipe of data and operating system on phone. So I wonder if it could also be the type of firmware you are trying to install? I would try to install a fresh copy of the new stuff firmware from Sam mobile or smart switch in order to make sure all the drivers are pm running properly. @wilcor I agree with you 100%. I am a little confused as to why the phone would fail when installing roms or fresh firmware??

Ok, thanks everybody I eventually got this problem sorted. I called samsung and they told me what country my device was from and after that I made sure I used ODIN 3.10.7 and the ROM for AFGHANISTAN and it installed successfully. Thank you for all your help.

Only official released binaries are allowed to be flashed

I flashed the TekHD rom, let the rom boot, and then tried to boot into recovery from the set up/welcome screen. Instead of booting into recovery, the phone screen is black with small red letters saying "Only official released binaries are allowed to be flashed"
I cant boot into recovery or the rom. I only get that message.
Help please.

Am able to access download mode. Gotta flash stock with ODin.

You must have forgot to flash the RMM fix. You either have to flash the RMM disabler or flash a custom Kernel that disables it that way before the first reboot after flashing TWRP. It's a new safety feature Samsung has introduced that locks the device after anything gets flashed or modified. Unfortunately, your only option is to re-odin stock files and then wait 7 days again for OEM unlock to appear.
After you get TWRP flashed again, mke sure you flash the fix or a custom Kernel.

JKSurf said:
Am able to access download mode. Gotta flash stock with ODin.
Click to expand...
Click to collapse
How do you boot to download mode I been trying but I can't, what buttons you press?

Joe237 said:
How do you boot to download mode I been trying but I can't, what buttons you press?
Click to expand...
Click to collapse
Hold [VOLUME DOWN] + [BIXBY] and connect usb cable (make sure usb is connected to the pc!)

I got it Thank you! I was a little bit scare because it doesn't want to turn off, jusk keep showing the red message

sorry to dig this thread up again... but i have the "only official binaries..." Problem too.. but my problem is that i cant get into Download mode no matter what i do.. as soon as i either press "power" or a combination of keys and even "vol down + bixby + connect cable to pc" wont work.. it only gets me this message... i even extended my research and opened my note 9 and unplugged the batery then replugged and retried.. no matter what i do i dont get into download mode :crying:

BioHaZaRD_ch said:
sorry to dig this thread up again... but i have the "only official binaries..." Problem too.. but my problem is that i cant get into Download mode no matter what i do.. as soon as i either press "power" or a combination of keys and even "vol down + bixby + connect cable to pc" wont work.. it only gets me this message... i even extended my research and opened my note 9 and unplugged the batery then replugged and retried.. no matter what i do i dont get into download mode :crying:
Click to expand...
Click to collapse
just continue to hold em... be patient.
also leave the cord plugged in

wont work anyway.. and i can tell you why :silly: the f***ing cable was defective.... it only charged the phone but made no connection to the PC.. yesterday it worked well.. i really feel pretty dumb now.. it is mandatory to have a data-transfer cable connected and not only a charger cable.. cause that wont work... but now i got the software back on it :laugh:

BioHaZaRD_ch said:
wont work anyway.. and i can tell you why :silly: the f***ing cable was defective.... it only charged the phone but made no connection to the PC.. yesterday it worked well.. i really feel pretty dumb now.. it is mandatory to have a data-transfer cable connected and not only a charger cable.. cause that wont work... but now i got the software back on it :laugh:
Click to expand...
Click to collapse
yes because data needs to be sent to your phone...major facepalm moment...

indeed.. but anyway .. my question is why would that happen to me.. i was using the RomAur 4.0 CSA7 for pretty long now.. just flashed the new TGP kernel on it to test how it will do.. (its CSB3) .. it worked fine but after 2 reboots it kicked me in the face ... i couldnt unlock my phone anymore.. ore merely when i entered the pin the screen went black again.. then i tried to reflash the Kernel wich i was using all the time (Endurance Kernel for PIE) and then the "only official..." message came up .. is it possible that the CSB3 Kernel kicked my butt with the newest safety patch?

BioHaZaRD_ch said:
indeed.. but anyway .. my question is why would that happen to me.. i was using the RomAur 4.0 CSA7 for pretty long now.. just flashed the new TGP kernel on it to test how it will do.. (its CSB3) .. it worked fine but after 2 reboots it kicked me in the face ... i couldnt unlock my phone anymore.. ore merely when i entered the pin the screen went black again.. then i tried to reflash the Kernel wich i was using all the time (Endurance Kernel for PIE) and then the "only official..." message came up .. is it possible that the CSB3 Kernel kicked my butt with the newest safety patch?
Click to expand...
Click to collapse
i think i have red that rmm is patched on tgp and with endurance kernel so thers no reason...
i could be wrong

yeahhh
hi guys I face the same issue to flash twrp 3.2.3...
and I did...
flash Bl and Cp from ketan s o8...shut down the phone and Odin...
restart odin v 3.13 and flash twrp and I have PASS...
only 3 min.
sorry for my english:good:

Done so easy RMM Removed in 3 sec.

jal3223 said:
You must have forgot to flash the RMM fix. You either have to flash the RMM disabler or flash a custom Kernel that disables it that way before the first reboot after flashing TWRP. It's a new safety feature Samsung has introduced that locks the device after anything gets flashed or modified. Unfortunately, your only option is to re-odin stock files and then wait 7 days again for OEM unlock to appear.
After you get TWRP flashed again, mke sure you flash the fix or a custom Kernel.
Click to expand...
Click to collapse
I already have my OEM unlocked in dev settings do I have to repeat the steps again? I mean flashing my country's fw and wait 7 days?

Hi i need some help here, i got the red message and when i enter to download mode and flash stock room from my country " just AP " odin just stay on "SetupConnection..." and then it says " <ID:0/005> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1).

looking at the logs, not only should all 4 .md5 be flashed as stated previously, but odin version should be latest 3.13.1 and be sure you are not trying to put older firmware revision than what the device's bootloader is on. and it cant hurt to check if cable is good and android device drivers installed too.

Ohhhhh i was flashing on 3.12 thanks a lot, now i want root my note 8, i was trying and i get that problem, can you help me please?

DavidRodrigo said:
Ohhhhh i was flashing on 3.12 thanks a lot, now i want root my note 8, i was trying and i get that problem, can you help me please?
Click to expand...
Click to collapse
well this is the note 9 forums btw.
maybe post over to the note 8 forums ure question.
also pretty sure that forum has a guide section explaining everyting you need to do...

please help
Good day! Please help. I have the situation when i am try to flash twrp on samsung s8 sm-g950fd. I have next massage appear in the downloading mode: " Only original binaries can be flashed". OEM unlock switch on - everithing ok. System Andorid 9.0. I am try to flash twrp in downloading mode, in the same time when i am start to flash, i am hold on the button on/off, volume up and bixby, but the phone not switch off., and this msg appear .Please help.

Note 9 bootloop out of nowhere!!

So let me give you a little background first. I was at my brother's house recording him dunk in superslowmo. All of a sudden, my phone freezes. After about 2-5 mins I decide To hold power +volume down and the phone goes black and goes to the "Samsung Galaxy note 9 secured by knox" screen and does a infinite reboot to that screen. The phone will not go into recovery mode BUT will go into Download Mode. I tried letting the phone completely drain and then trying it with no success.
I do have AT&T protection on my device but the only thing they will do is replace it which I'm trying to avoid being that I have pictures I want to extract from the phone.
So to my question(s)
1) if I flash latest version of firmware from sammombile will I lose my pictures? (Trying to avoid loss of pics)
2) can I use a MacBook to do the reflashing or does it have to be windows?
Please and thx to all that respond!!!

Once in download mode hold volume down and power to see if phone boots up. If you reflash with Odin use home_csc so it does not wipe your data. If you do get to recovery do not do a wipe, everything you have saved to phone storage will be gone. See if you can get to device storage by connecting to computer once your in download mode or recovery. If so just move all important files to computer then you can use Odin to flash firmware.
Sent from my SM-N975U using Tapatalk

Bicka0701 said:
So let me give you a little background first. I was at my brother's house recording him dunk in superslowmo. All of a sudden, my phone freezes. After about 2-5 mins I decide To hold power +volume down and the phone goes black and goes to the "Samsung Galaxy note 9 secured by knox" screen and does a infinite reboot to that screen. The phone will not go into recovery mode BUT will go into Download Mode. I tried letting the phone completely drain and then trying it with no success.
I do have AT&T protection on my device but the only thing they will do is replace it which I'm trying to avoid being that I have pictures I want to extract from the phone.
So to my question(s)
1) if I flash latest version of firmware from sammombile will I lose my pictures? (Trying to avoid loss of pics)
2) can I use a MacBook to do the reflashing or does it have to be windows?
Please and thx to all that respond!!!
Click to expand...
Click to collapse
1) while flashing in Odin, the CSC file determines if your phones data is erased or not during the flash. In order to retain personal data, flash HOME_CSC..
2) you can use Jodin to flash on a Mac https://forum.xda-developers.com/devdb/project/dl/?id=20803

Bober_is_a_troll said:
1) while flashing in Odin, the CSC file determines if your phones data is erased or not during the flash. In order to retain personal data, flash HOME_CSC..
2) you can use Jodin to flash on a Mac https://forum.xda-developers.com/devdb/project/dl/?id=20803
Click to expand...
Click to collapse
Okay I ditched the macbook idea and I have my aunt's computer in from of me.
When installing the firmware.. Am I going for the latest USA version which is from like last week... Or do I do the ATT firmware from Nov 2018 and do the OTA update?

Bicka0701 said:
Okay I ditched the macbook idea and I have my aunt's computer in from of me.
When installing the firmware.. Am I going for the latest USA version which is from like last week... Or do I do the ATT firmware from Nov 2018 and do the OTA update?
Click to expand...
Click to collapse
We're you already on the latest firmware? If you are then just flash the latest and use home_csc

Bober_is_a_troll said:
We're you already on the latest firmware? If you are then just flash the latest and use home_csc
Click to expand...
Click to collapse
Okay now one last problem .. I connected my phone to the pc and it made a chime sound like the pc recognized but noting popping up in odin.
When I go to download the drivers, it tells me I already have them downloaded and ask if I want to dl them again anyways which I do... Then at the end of the whole process it says failed to install and I'm in dl mode on my phone

Try different port on computer
Sent from my SM-N975U using Tapatalk

butchieboy said:
Try different port on computer
Sent from my SM-N975U using Tapatalk
Click to expand...
Click to collapse
When I did that I got this loading screen that says installing device but it hasn't moved from that "near end" of the loading screen for like 10 mins now

butchieboy said:
Once in download mode hold volume down and power to see if phone boots up. If you reflash with Odin use home_csc so it does not wipe your data. If you do get to recovery do not do a wipe, everything you have saved to phone storage will be gone. See if you can get to device storage by connecting to computer once your in download mode or recovery. If so just move all important files to computer then you can use Odin to flash firmware.
Sent from my SM-N975U using Tapatalk
Click to expand...
Click to collapse
Ever seen above Images?

Try installing Smart Switch

raul6 said:
Try installing Smart Switch
Click to expand...
Click to collapse
I'm going to try that now. Just look at what version of Windows I have and it's 8.1... does that make a difference of why the drivers won't install ?
This is the error message when I try "mss installwizard for samsung usb driver for mobile phones failed "

Bicka0701 said:
I'm going to try that now. Just look at what version of Windows I have and it's 8.1... does that make a difference of why the drivers won't install ?
This is the error message when I try "mss installwizard for samsung usb driver for mobile phones failed "
Click to expand...
Click to collapse
When I was installing smart switch it told me to "disconnect my device from pc"( which it read AS A Samsung phone)
But when it's all downloaded It just says connect device again but when I do the computer makes its sound and then nothing.
If I'm in device manager and I plug in my note 9 it pops up as 'sdm845' but says there are no drivers installed.
I uninstalled the Samsung drivers (even though it says failed) and I tried again and it said fail to install again

Okay if anyone Is still reading this.. If I switch up and use my Father's Macbook instead, does anyone know the necessary steps to continue on with the process? And keep in mind the state of my phone is in a boot loop and only goes to the download screen

I was just doing the whole chatting thing with a Samsung representative and they advise me to go to a place near me to do the reflashing.
but still the thing that's bothering me is that my PC isn't installing the drivers regardless.
without even thinking about my phone connected , I should be able to go on Samsung's website and download the drivers right off the website but when I do I get the "mss installwizard for samsung usb driver for mobile phones failed "

Install this drivers, reboot pc, open odin as administrator, connect phone in download mode.
http://www79.zippyshare.com/v/NJL6wZmq/file.html

Did you ever get to the bottom of this ? I seem to have a similar issue, where phone is in a continuous boot loop. It stays on powered by android screen for few secs and then restarts.
I cannot enter recovery mode, but can get into download mode. Have flashed via ODIN few times successfully, but same condition prevails.
Safe to assume MoBo is fried ?

Could be that the main storage in the motherboard is corrupted, which needs to be reformatted entirely.

dedicated2droid said:
Did you ever get to the bottom of this ? I seem to have a similar issue, where phone is in a continuous boot loop. It stays on powered by android screen for few secs and then restarts.
I cannot enter recovery mode, but can get into download mode. Have flashed via ODIN few times successfully, but same condition prevails.
Safe to assume MoBo is fried ?
Click to expand...
Click to collapse
No I never did get to the bottom of it. I ended up getting the Note 10 but I still have the Note 9 with Hopes one day someone figures it. I got pics of my son I would love to get off of there

Bicka0701 said:
No I never did get to the bottom of it. I ended up getting the Note 10 but I still have the Note 9 with Hopes one day someone figures it. I got pics of my son I would love to get off of there
Click to expand...
Click to collapse
Just a heads up, Google photos has free backups up to 15gb in full quality, or unlimited backup of 1080 for pics and videos. So at least from now-> forward a hardware issue won't ever cause you to lose pics again. You just need to open the app and setup backups.