Question Help please - boot loop / post flash - Samsung Galaxy S21 Ultra

Hi,
I'm super new here, so apologies if I'm doing something I'm not meant to.
My partner recently updated her device (s21 ultra - G998B) and from that point she was stuck in a boot loop.
A few people recommended I download Odin and flash the firmware. We tried that initially with the same firmware the device was seemingly running (g998bxxu5dvjc), that left us in the same boot loop.
After that someone mentioned it might be worth trying different firmware. I downloaded a few different options - 2 newer and 1 older than the initial firmware we tried all with the same under the same carrier.
Since then the boot loop has seemingly got worse. At this point it loads less of the boot than it was prior.
We have yet to factory reset the device as the data on there is more important to us than the phone itself.
It seems the data might be a lost cause but if you have any ideas, please let me know.
From here should I just factory reset? Should I be doing it through Odin with the CSC and not the Home_CSC now? Or is it time for me to just factory reset directly through the device?
Thanks so much for your input!

Try installing a different ROM (e.g, Dr. Ketan). Follow the instructions by the letter, you should be fine.

Related

[Q] Galaxy Tab (Australia-Optus) Flash failed, now I have no IMEI

Hi all, I have messed up my Galaxy Tab GT-P1000 (Aus-Optus-CDMA) trying to flash. I managed to get it going on the following FROYO.XXJME Version 2.2 Kernel 2.6.32.9 rootatSEI-28 #1
Unfortunately I did not do a full backup!
My problem is now,
1/ No imei shown
2/ No serial number shown
3/ Not recognize my sim card
4/ Tab reboots regularly
Have done the factory reset however I am not sure if due to my flashing is it the original rom?
I have the imei written but cannot get the Tab to find it, thus cannot connect to Kies to get the samsung updates which would fix things, "I think".
Can anyone help
Thanks
DanTanBjAj said:
Hi all, I have messed up my Galaxy Tab GT-P1000 (Aus-Optus-CDMA) trying to flash. I managed to get it going on the following FROYO.XXJME Version 2.2 Kernel 2.6.32.9 rootatSEI-28 #1
Unfortunately I did not do a full backup!
My problem is now,
1/ No imei shown
2/ No serial number shown
3/ Not recognize my sim card
4/ Tab reboots regularly
Have done the factory reset however I am not sure if due to my flashing is it the original rom?
I have the imei written but cannot get the Tab to find it, thus cannot connect to Kies to get the samsung updates which would fix things, "I think".
Can anyone help
Thanks
Click to expand...
Click to collapse
Did you flash with ODIN?
Did you get an error message?
Have you tried re-flashing to a stock ROM?
You should read through the following thread before flashing anything else
http://forum.xda-developers.com/showthread.php?t=888071&highlight=no+imei+after+flash
And you are correct in assuming that a factory reset would only re flash the ROM you "replaced" your stock ROM with.
Also remember that using the SEARCH button usually will get you a lot more answers than just waiting on a reply here.
Did you unlock the tab first, no network lock, no sim lock... If you didn't this may explain whats happened. Don't know how you're gonna fix though....
Your Gtab is also NOT a CDMA tab, its GSM as you use a sim card... You may have bricked it if you flashed a CDMA rom.... Lucky if it starts up at all...
You need to tell us more info, what rom you flashed, how you flashed it - ODIN, Heimdall , Kies or just by pure magic. Then you might get more help....
the /efs folder contains all information/numbers about your gt including IME, mac address, bluetooth,etc.. It may have been deleted yet there should be a bak file inside the folder. since you are able to boot as you mentioned then you can still go into download mode and reflash a ROM?
Hi "theREDlegion" & thanks for your time.
Yes I did flash with Odin.
I got a red FAIL in Odin & an error message, trying to remember what it said exactly.
I am not sure which is the correct ROM to use for me here in Australia, CSC file & Pit etc, I'm kinda new to this stuff.......as you guessed!
I rooted the Tab with z4root, then used the repair nv_data to unlock the network which was succesful, so it said by entering the code.
So will the "Gingerbread" ROM work on my Tab?
I tried P1000XXJQ1_P1000XXJQ1_P1000XXJPZ_HOME.tar which failed.
Thanks again.
Hi ultramag69, appreciate your help.
I was installing a game when my Tab froze. No matter what I did I could not get it to respond. This is why I thought lets try & install Gingerbread. I managed to get it connected to the PC, however I am not sure if I did as you said "sim unlock". I did the network unlock. My Tab runs okay now but will loop boot when idol for 30 sec. I still whish to do Gingerbread if it is possible, or "overcome"
Thanks again.
Hi bongski55, thanks for your assisstance.
I have the backup of the efs & the files in it are dated 27/10/2010 which would indicate they are the originals. I have replaced the new efs files with these but still no change.
Not sure which file is the imei info though.
Here is my plan,
1/ Do factory reset - this will allow me to reroot
2/ Root the Tab & unlock network, learn how to unlock sim?
3/ Remove SD & SIM cards.
4/ Use Odin to flash with Gingerbread, I think I have the right ROM!
Wot u think!!!!!!!!!
Is your bootloader safe? Do you know what your original firmware version was ?
edit for my english: is "was" at the good place in the second sentence?
You've tried chainfire's safe rom, have you checked out the overcome thread, there's a safe rom you can install through ODIN there too... Might work. Also, do a search for Telstra rom, might take back to stock Froyo but with all the Telstra bloatware, I started on this.
After you take back to Froyo stock you can try again for GB. Can't say if this will work though as you have an Optus tab, mine was Telstra from the start...
Good luck...
Without restoring the efs folder CORRECTLY. All your efforts are futile. Follow this thread to restore /efs folder: http://forum.xda-developers.com/showthread.php?t=859914. Reboot your phone, Charge it and try flashing a stock ROM.
Some very helpful information has been posted here, thanks to the very helpful members of xda.
If I was in your shoes I would do the following:
1) Follow the link provided by DarkPal in post 10, complete the steps necessary to restore the efs folder.
2) Follow the link I provided in post 2 and confirm your bootloaders and take necessary actions to patch if necessary.
3) Your device (on Optus) should be WCDMA/GSM. I would go over the OVERCOME thread and follow instructions on flashing a stock safe rom and attempt to flash the OVERCOME rom. It is important to follow the instructions step by step for a successful flash. The OVERCOME guide is very detailed, if you follow it correctly you should not have any issues with the flash.
Do post back your results and good luck.
DarkPal said:
Without restoring the efs folder CORRECTLY. All your efforts are futile. Follow this thread to restore /efs folder: http://forum.xda-developers.com/showthread.php?t=859914. Reboot your phone, Charge it and try flashing a stock ROM.
Click to expand...
Click to collapse
Thanks for your help so far,
I have been able to find the backup of my efs/ which was created during unlock process.
Thank god.........I have now done this, patched bootloader.
1/ Used Overcome safe rom & flashed
2/ Flashed to Overcome "Jupiter" v3.3.0 & changed file system to ext4
3/ restored efs/
4/ My imei is now back to original....Yippee....also is my serial number.
Now when I boot it gives me full bars of service & Yes Optus on the screen..Great!
But I still canNOT connect. My Wifi works fine.
I notice my IMEI SV is now 05 but was originally 01.
I am not sure how to see what csc I have & don't know if it matters?
Any suggestions....
Cheers
Google "optus apn settings" and check yours (settings, wireless network, apn).
Check if wireless mode is auto.
What is your baseband (modem version)?
Because you see optus on your screen, your voice service is fine, but no data connection means your apn values are incorrect or missing.
theREDlegion said:
Some very helpful information has been posted here, thanks to the very helpful members of xda.
If I was in your shoes I would do the following:
1) Follow the link provided by DarkPal in post 10, complete the steps necessary to restore the efs folder.
2) Follow the link I provided in post 2 and confirm your bootloaders and take necessary actions to patch if necessary.
3) Your device (on Optus) should be WCDMA/GSM. I would go over the OVERCOME thread and follow instructions on flashing a stock safe rom and attempt to flash the OVERCOME rom. It is important to follow the instructions step by step for a successful flash. The OVERCOME guide is very detailed, if you follow it correctly you should not have any issues with the flash.
Do post back your results and good luck.
Click to expand...
Click to collapse
Good morning all, well I would like to thank everyone on this forum, particularly those who have promptly responded to my questions.
I am glad to say that after 3 days of stress I have finally got my Galaxy Tab back on the Optus Australia internet service, I had to change the APN from Optus (Internet) to Optus (connectcap) in the Access Point Names & also at the bottom of those settings I had to select Internet. The connectcap option is not there by default, you have to add a new APN & choose these settings. My sim card is a data plan only.
So I now have my Tab running Overcome Jupiter, thanks guys, love your work, on the ext4 file system and already it is noticably faster.
Now......probably a good time to do a proper backup......yep I'm learning!
So thanks again everyone.

RESOLVED [Q] SIM not detected?? (ATT + polish GNOTE)

I got a GNOTE from negri on 11/9. It seems it was s polish version. It has been working wonderfully on ATT (after adding in APN manually for 3g/H+ -- voice worked out of box).
I rebooted Today (11/13) and now it has the crossed out circle instead of bars and says "Insert sim" when I start to do cellular related activities.
I have Seated and reseated; nothing. pulled the sim and put back in my SGT (phone enabled) and it works. Put back in GNOTE, still no sim detected! Stuffed SIM in my N1; it works.
Any suggestions?
I had a similar SIM card issue when I tried to activate the 1700MHz band in Service mode (for fun). Wipes and stuff didn't solve anything. The way to revert it for me was flashing a full stock Samsung firmware in Odin.
Can you provide more details on how you did this?
Where does one get a full stock sammy note firmware?
Are there some good instructions on this?
I have flashed my SGT via odin several times. Same odin? Same process?
In the development section you will find some versions.
The key for me was flashing a new Modem (Radio/base band) image via Odin I think. I changed Kernels and ROM's but only flashing a ROM including the Modem got rid of my SIM issue. Not sure because in the end I flashed a full N7000OXAKJ1 firmware in Odin from here:
http://forum.xda-developers.com/showthread.php?t=1310513
It did the trick, though the tread is dead. I think any ROM including Modem might help, I currently running the 2.3.6 N7000ZSKK1 firmware and it is great, also included a Modem.
http://forum.xda-developers.com/showthread.php?t=1342797
fwelland said:
I got a GNOTE from negri on 11/9. It seems it was s polish version. It has been working wonderfully on ATT (after adding in APN manually for 3g/H+ -- voice worked out of box).
I rebooted Today (11/13) and now it has the crossed out circle instead of bars and says "Insert sim" when I start to do cellular related activities.
I have Seated and reseated; nothing. pulled the sim and put back in my SGT (phone enabled) and it works. Put back in GNOTE, still no sim detected! Stuffed SIM in my N1; it works.
Any suggestions?
Click to expand...
Click to collapse
when this happened to me, also due to turning on 1700, I was able to reset my phone by doing a factory reset. Unless your modem.bin is corrupted, you should not have flash a new rom.
- frank.
ugh....
you mean factory reset via Settings->Privacy->Factory Reset?
Tried that... No affect. Is there another way to do this?
Was hoping to fix w/o the flash. NOTE: I did go into that service menu with the 3G Freq are listed. I was curious when I saw the post. But I never changed anything. Just saw the screen and thought "neato". I wonder if there is another service screen that has an option for 'unfuck'???
Still searching for answers, before trying the ROM route...
fwelland said:
ugh....
you mean factory reset via Settings->Privacy->Factory Reset?
Tried that... No affect. Is there another way to do this?
Was hoping to fix w/o the flash. NOTE: I did go into that service menu with the 3G Freq are listed. I was curious when I saw the post. But I never changed anything. Just saw the screen and thought "neato". I wonder if there is another service screen that has an option for 'unfuck'???
Still searching for answers, before trying the ROM route...
Click to expand...
Click to collapse
Here is Chodthewacko posted about it:
http://forum.xda-developers.com/showthread.php?t=1335920
Factory reset and toggle band settings seems to have worked for him. I got frustrated and Odin flashed everything, that worked for me.
whoa....
when I try that procedure (* # * # 1 9 7 3 2 8 6 4 0 # * # * ) I get a pretty empty screen...can't do much of anything...just some useless buttons on the bottom of screen when I select the menu button...
I think I recall seeing another number for doing a similar thing...
fwelland said:
I got a GNOTE from negri on 11/9. It seems it was s polish version. It has been working wonderfully on ATT (after adding in APN manually for 3g/H+ -- voice worked out of box).
I rebooted Today (11/13) and now it has the crossed out circle instead of bars and says "Insert sim" when I start to do cellular related activities.
I have Seated and reseated; nothing. pulled the sim and put back in my SGT (phone enabled) and it works. Put back in GNOTE, still no sim detected! Stuffed SIM in my N1; it works.
Any suggestions?
Click to expand...
Click to collapse
OMG I have the EXACT same issue as you, and I got mine from NEGRI also! It was working perfectly until last night --- all of a sudden I got that circle and I've been trying to fix it since then! Please keep me posted if you find a solution, I was going to try and contact Negri tomorrow for an RMA.
still nothing.
I did a root. No changes...
I did a rom flash of kk1 ... no changes....
I was trying to reflash the modem with KJ6 modem....but have a signature failed problem...
now what???
I solved my issue by a combo of those steps.
I did full flash in Odin of jk1. When I rebooted that didn't solve things so I wanted to flash the other recommendation, kk the Chinese rom.
Upon entering recovery I noticed I lost 2e and was on 3e. So I had to download chainfire's rooted jk1 kernel and do that zerg rush to get root. It was while I was doing that that suddenly my similar got recognized. By the time it finished installing the rooter kernel I had full reception again. I flashed kk just for good measure and its been smooth since. Hope it works for you too and I'd love to know what the heck broke it in the first place??
Sent from my GT-N7000 using XDA App
hi fwelland, it's hk1981...so you tried the rom flash and it didn't work?
Hi hk1981,
No the KK1 rom flashed fine. By all accounts it works well, except that pesky phone part. This KK1 rom is really 'clean' and very little bloat-ware and it installs a vanilla boot animation (not a carrier one). All that is nice, but didn't help my problem
I did notice a peculiar thing: while in recovery (android recovery, not cwm) I get some warning about "CSC something or other, fixing".
I have a short list of things to try before I have exhausted my DIY options -- the post just above looks promising.
I think the answer is out there. We just need to keep looking and keep attention on this thread and others like it. This place and others like it are a huge help and I'd like to solve it and then give back a good set of instructions.
FWIW: I wonder if there was some voodoo in the polish rom that caused some issues in the modem when a different than expected sim was installed? Or if one of those funky polish apps that updated it self before I could turn off auto-updates has something to do with it (doubt this -- I don't think apps can do stuff unless rooted...)...
Still searching....I got this other pesky problem to deal with now: w-o-r-k
fwelland said:
Hi hk1981,
No the KK1 rom flashed fine. By all accounts it works well, except that pesky phone part. This KK1 rom is really 'clean' and very little bloat-ware and it installs a vanilla boot animation (not a carrier one). All that is nice, but didn't help my problem
I did notice a peculiar thing: while in recovery (android recovery, not cwm) I get some warning about "CSC something or other, fixing".
I have a short list of things to try before I have exhausted my DIY options -- the post just above looks promising.
I think the answer is out there. We just need to keep looking and keep attention on this thread and others like it. This place and others like it are a huge help and I'd like to solve it and then give back a good set of instructions.
FWIW: I wonder if there was some voodoo in the polish rom that caused some issues in the modem when a different than expected sim was installed? Or if one of those funky polish apps that updated it self before I could turn off auto-updates has something to do with it (doubt this -- I don't think apps can do stuff unless rooted...)...
Still searching....I got this other pesky problem to deal with now: w-o-r-k
Click to expand...
Click to collapse
I had that problem too, it doesn't detect that CSC and then goes ahead and applies something. Check to see if you are in 3e recovery, I think you are after having flashed vanilla JK1.
Re-flash Chainfire's rooted kernal for your appropriate version and then go back into recovery and it should be 3e and you can flash thru CWM then.
Also note; each time I flashed, I also wiped data/cache/davlik just to be sure.
yes it does say:
Code:
Android system recover (3e).
So I will need to try the methods you (crippenx) suggested.
FWIW, the CSC message that I get when I first enter recovery is:
Code:
# MANUAL MODE #
--Updating application...
Successfully update application.
--Appling Multi-CSC...
Installing Multi-CSC
Applied the CSC-code 'TGY'
Sucessfully applied multi-CSC.
I have no idea what this means. It does it every time I enter recovery.
FWIW, I never flashed this gnote with ODIN (I have used ODIN on my SGT several times). I got to KK1 by first rooting via http://forum.xda-developers.com/showthread.php?t=1329360 (using 'forget the above steps') and then using the CWM 'kk1-wipe.zip' from here http://forum.xda-developers.com/showthread.php?t=1342797 -- I didn't use ODIN to get to kk1.
I see on the Root/Unroot thread, there is a KK1 kernel option for 'simple'. I think I will try that with rooted already script.
But I am open to any/all suggestions...
Code:
Baseband
N7000XXKJ6
Kernel
2.6.35.7-N7000ZSKK1-CL706440
[email protected] #2
Build Number
GINGERBREAD.ZSKK1
fwelland said:
whoa....
when I try that procedure (* # * # 1 9 7 3 2 8 6 4 0 # * # * ) I get a pretty empty screen...can't do much of anything...just some useless buttons on the bottom of screen when I select the menu button...
I think I recall seeing another number for doing a similar thing...
Click to expand...
Click to collapse
My rough guess is that the phone has a list of 'valid service menu options', and it cross references it with what is on the SIM card.
Once the phone decides it's not going to read your sim card, the service menu is blank. This is a real headache.
That's why once I set the 1700+2100 combo, and my phone boycotted my sim, I wasn't able to set it back.
That's really dumb, imho, to have a one way toggle like that. I'm fine for settings to enable/disable other settings, but for a setting to disable itself? ugh.
I would really like to know what's going on. I was planning on switching to AT&T before my next trip (which is soon) but I can't risk my phone glitching out like that during the trip.
Actually, the ROM is on my SD card so I guess it wouldn't be THAT horrible, but it's certainly not something I want to do. Perhaps we just need a way to flash back the modem.bin, assuming it's corrupted.
- Frank
Sorry typo on my part. You are in 3e recovery because of that base flash, now you need 2e recovery which you can get via chainfire's rooted kernel. His installation procedure runs a batch file that uses that zerg rush exploit which I gather is partially from gingerbreak. It was during this procedure that my baseband suddenly came back, my sim card finally detected.
Once that was done, I entered 2e cwm with volume up,power,middle button and did erase of data,cache,davlik and then flashed kk rom via zip file.
Sent from my GT-N7000 using XDA App
fwelland said:
yes it does say:
Code:
Android system recover (3e).
So I will need to try the methods you (crippenx) suggested.
FWIW, the CSC message that I get when I first enter recovery is:
Code:
# MANUAL MODE #
--Updating application...
Successfully update application.
--Appling Multi-CSC...
Installing Multi-CSC
Applied the CSC-code 'TGY'
Sucessfully applied multi-CSC.
I have no idea what this means. It does it every time I enter recovery.
FWIW, I never flashed this gnote with ODIN (I have used ODIN on my SGT several times). I got to KK1 by first rooting via http://forum.xda-developers.com/showthread.php?t=1329360 (using 'forget the above steps') and then using the CWM 'kk1-wipe.zip' from here http://forum.xda-developers.com/showthread.php?t=1342797 -- I didn't use ODIN to get to kk1.
I see on the Root/Unroot thread, there is a KK1 kernel option for 'simple'. I think I will try that with rooted already script.
But I am open to any/all suggestions...
Code:
Baseband
N7000XXKJ6
Kernel
2.6.35.7-N7000ZSKK1-CL706440
[email protected] #2
Build Number
GINGERBREAD.ZSKK1
Click to expand...
Click to collapse
For me flashing all partitions via Odin worked (no pit file or repartition). Tried all sort of stuff from recovery first with no result.
I don't know what partition flash from Odin did the trick, but you could try Odin flashing a Modem separately and check if that works. If not try the rest?
Finally got back to this.
After much fusing I finally got KK1 and cwm working. It was odd, I had to re-run the whole root process again.
At that point I could apply the KJ6 modem w/o any problems (via cwm)
no dice!
Still dead!
Not sure where to go next???
Can some one provide a few details about flashing a modem,rom and/or kernel via ODIN? Perhaps that method will work....
fwelland said:
Finally got back to this.
After much fusing I finally got KK1 and cwm working. It was odd, I had to re-run the whole root process again.
At that point I could apply the KJ6 modem w/o any problems (via cwm)
no dice!
Still dead!
Not sure where to go next???
Can some one provide a few details about flashing a modem,rom and/or kernel via ODIN? Perhaps that method will work....
Click to expand...
Click to collapse
Oh when you flashed jk1 I assumed you did it the old way via Odin and the multiple files. That's how I did it and you're right, that may be what fixed it as when I used to brick my sgs and sgs2, it was always a full Odin flash of stock that brought it back from the dead
To flash in Odin put your phone in download mode. Fire up Odin. In csc point to csc file. In phone section point to modem and for PDA you point to the code file. Don't put anything for pit or bootloader and unchecked the repartition toggle.
Connect your phone and wait for Odin to detect it and show yellow in the status window. Press start and you're good to go. Hope this does it!
Sent from my GT-N7000 using XDA App

U not resetting after flash in odin?

I have downloaded from Frija the U android 10 release (TMB) and the U1 release (XAA). For some reason when I flash regular U, using the other CSC, not the home one, the phone does not factory reset. It boots to recovery and gives me some sort of error (I forget what it says) despite it flashing correctly. When I restart it still has it switched to U and appears to have worked, it just doesn't reset for whatever reason, which makes me feel like something is wrong. I don't have this problem when flashing U1. The phone is a cricket model originally, though I doubt that has anything to do with it. Maybe it's just a bad download from frija? No I'm not mixing up the home CDC

Really desperate for some help guys flashing note 8 stuck in boot mode:

MY skill with Android flashing: 3/10
Phone Problem: Boots to the very first screen with the phone model and then turns off itself, vibrates, and relaunches..... (repeat repeat). It did use to reach the Samsung screen before my (what I thought was) successful FW flash!
Hey, so im having a mare trying to flash some firmware on my friends Note 8 using Odin3 and pretty much guessing at firmware to fix this phone. I downloaded the latest version that seems to be available.
The phone Model number is not known exactly but its a single sim, UK spec (Carrier: 02) so am assuming it is the SM-N950F
Im slowly downloading fw files to try and get this phone to reboot - but no such luck! is there anyone with enough patience to try and help me install the "correct" firmwares?
I tried with my first attempt and it fails in odin with a message: SW Check boot loader 14 binary 13 (or something along those lines - which I tried a search for here in the forums and was something to do with the compatibility of the bl and fw not being correct)
My second attempt was a success through Odin (Cleared and Pass!) but now it only gets to the very first screen and reboot loops straight away without getting to the Samsung screen.... so not really a success my end!
Can anyone help a Android noob?
Not looking to keep any data what so ever Just want a full factory reset.
Phone last worked properly on 23/24th December last year and my friend hasn't bothered with it since when it bricked.
Greeny308 said:
MY skill with Android flashing: 3/10
Phone Problem: Boots to the very first screen with the phone model and then turns off itself, vibrates, and relaunches..... (repeat repeat). It did use to reach the Samsung screen before my (what I thought was) successful FW flash!
Hey, so im having a mare trying to flash some firmware on my friends Note 8 using Odin3 and pretty much guessing at firmware to fix this phone. I downloaded the latest version that seems to be available.
The phone Model number is not known exactly but its a single sim, UK spec (Carrier: 02) so am assuming it is the SM-N950F
Im slowly downloading fw files to try and get this phone to reboot - but no such luck! is there anyone with enough patience to try and help me install the "correct" firmwares?
I tried with my first attempt and it fails in odin with a message: SW Check boot loader 14 binary 13 (or something along those lines - which I tried a search for here in the forums and was something to do with the compatibility of the bl and fw not being correct)
My second attempt was a success through Odin (Cleared and Pass!) but now it only gets to the very first screen and reboot loops straight away without getting to the Samsung screen.... so not really a success my end!
Can anyone help a Android noob?
Not looking to keep any data what so ever Just want a full factory reset.
Phone last worked properly on 23/24th December last year and my friend hasn't bothered with it since when it bricked.
Click to expand...
Click to collapse
Hey bro I am not a pro either at this but doing this since quite a time now,
Your first attempt failed because you tried to install an older version of android whereas your device had a newer version installed previously....SAMSUCK does not allows you to downgrade your android model...
Your second attempt resulted in a bootloop , I will suggest you to reboot the phone into recovery and format it once, it might work.....
brokenbrain939 said:
Hey bro I am not a pro either at this but doing this since quite a time now,
Your first attempt failed because you tried to install an older version of android whereas your device had a newer version installed previously....SAMSUCK does not allows you to downgrade your android model...
Your second attempt resulted in a bootloop , I will suggest you to reboot the phone into recovery and format it once, it might work.....
Click to expand...
Click to collapse
how do I do this?
I can get into the boot menu and have tried all options as in:
Wipe cache partition
Wipe data/factory reset
reboot system now
still stuck in boot loop (1st power on screen)
brokenbrain939 said:
Hey bro I am not a pro either at this but doing this since quite a time now,
Your first attempt failed because you tried to install an older version of android whereas your device had a newer version installed previously....SAMSUCK does not allows you to downgrade your android model...
Your second attempt resulted in a bootloop , I will suggest you to reboot the phone into recovery and format it once, it might work.....
Click to expand...
Click to collapse
Greeny308 said:
MY skill with Android flashing: 3/10
Phone Problem: Boots to the very first screen with the phone model and then turns off itself, vibrates, and relaunches..... (repeat repeat). It did use to reach the Samsung screen before my (what I thought was) successful FW flash!
Hey, so im having a mare trying to flash some firmware on my friends Note 8 using Odin3 and pretty much guessing at firmware to fix this phone. I downloaded the latest version that seems to be available.
The phone Model number is not known exactly but its a single sim, UK spec (Carrier: 02) so am assuming it is the SM-N950F
Im slowly downloading fw files to try and get this phone to reboot - but no such luck! is there anyone with enough patience to try and help me install the "correct" firmwares?
I tried with my first attempt and it fails in odin with a message: SW Check boot loader 14 binary 13 (or something along those lines - which I tried a search for here in the forums and was something to do with the compatibility of the bl and fw not being correct)
My second attempt was a success through Odin (Cleared and Pass!) but now it only gets to the very first screen and reboot loops straight away without getting to the Samsung screen.... so not really a success my end!
Can anyone help a Android noob?
Not looking to keep any data what so ever Just want a full factory reset.
Phone last worked properly on 23/24th December last year and my friend hasn't bothered with it since when it bricked.
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What did you flash in your second attempt?
stonedpsycho said:
What did you flash in your second attempt?
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Like all four options it gives you in Odin. The bl, ap, cp, csc....... using the latest one I could find on SamMobile for 02 carrier U.K. -
Like all four options it gives you in Odin. The bl, ap, cp, csc....... using the latest one I could find on SamMobile for 02 carrier U.K. -
Greeny308 said:
Like all four options it gives you in Odin. The bl, ap, cp, csc....... using the latest one I could find on SamMobile for 02 carrier U.K. -
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It should boot after flashing that, it could be a hardware problem preventing a successful boot :-( Probably worth trying different filmware though, you could try BTU (UK) or XEU (UK & Ireland)
Bro i will advice you to just get over this stock rom and install some custom rom.
You can install a custom recovery like twrp through odin and then using that recovery install some custom rom made for your device.
All these you might find in your device's xda forum.
Brp i just checked and found that galaxy note 8 has plethora of custom roms available just install the one which you like.
You can see the installation process on youtube.

Samsung Note 9 SM-N960U1 Bootloop. Flashed with Odin and still no joy. Please help!!!

So I installed an app called CSWE App Manager and disabled some apps/services. Well, I must have disabled something I shouldn't have and my phone is boot looping. It shows the Samsung splash logo and then after a few minutes reboots and repeats.
Here is what I have done so far to troubleshoot:
I have taken out the sim/SD card.
I have booted into recover and wiped cache and factory data reset, but still no joy.
I downloaded new firmware and flashed via Odin. Got a successful flash, but still boot loops even after that. I downloaded this firmware from SamMobile:
ModelSM-N960U1Product CodeXAACountryBluegrass Cellular (LRA)Cellular south (XAR)Comcast (CCT)Nextech / C-Spire (ACG)Spint (cdma) (SPR)Tracfone (TFN)USA (TMK)USA (USC)USA (AT&T) (ATT)USA (T-Mobile) (TMB)USA (Verizon) (VZW)Unknown (BST)Unknown (AIO)Unknown (XAA)Unknown (XAS)Virgin Mobile USA (VMU)Xfinity Mobile (CHA)
Unknown (XAA)
Unknown (XAA)
Security Patch Level2022-06-01OS VersionAndroid 10PDAN960U1UEU9FVG2CSCN960U1OYM9FVG2Build DateThu, 21 Jul 2022 23:19:55 +0000Changelist22990479
I am at a loss for what to do now. Can anybody please help me? I am about to pull my hair out.
Thank you!
I took these screenshots of my wife's phone software info. She has the exact same phone as I do.
Unfortunately you may have to factory reset. Without knowing what the culprit is. If I were you, I would use ADB App Control next time. You can disable and enable with one click. And I would never remove anything unless you are sure, just disable
I tried to factory reset, but no luck. Still boot loops. I didn't uninstall anything, I just disabled. ADB App Control... is that an app?
I'm so frustrated, it successfully flashes in Odin, but still boot loops.
You load it on computer and connect device. It shows every app with the option to ddisable. If factory reset didn't work probably have to flash firmware with odin.
You load it on computer and connect device. It shows every app with the option to ddisable. If factory reset didn't work probably have to flash firmware with odin
Go here
Download SM-N960U1 / Galaxy Note9 SM-N960U1 XAA in Samfw - Samsung firmware download
SM-N960U1 / Galaxy Note9 SM-N960U1 XAA samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
Thank you for the link. I downloaded that firmware and got a pass on Odin v3.14. Still boot looping. What am I missing?
Did you flash BL..AP..CP..CSC
So I flashed via Odin again and this time I didn't select for auto reboot. I powered down after the flash and immediately went into Recovery Mode. As I attempted to do this a blue android logo and status bar came up briefly and then went away, which was weird. Then it let me into Recovery Mode and I cleared cache and factory reset. Still no luck, boot looping.
Yes, I flashed all four of those as the same time.
Since you factory reset, try flashing again with those 4 files. Keep auto reboot selected. Use parched Odin I think 3.13b or patched 3.14
And if you can, show me your download screen
Ok, I did and still boot loop.
No I mean download screen of your device
Who is your carrier? What sim?
butchieboy said:
Who is your carrier? What sim?
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Mint Mobile
Try to find latest version of odin. Mint Mobile is basically Tmobile. Take sim out and flash the firmware.
I've got Odin 3.13.1 and have the sim/SD card out. Still boot looping even after successful flashes.
Here is the device info that I get when connecting to SamFirm to confirm what my device is currently showing.
Company : TOSHIBA
Model Number : SM-N960U1
Sales Model : XAA
SW Version : N960U1UEU9FVG2
FW Version : 000B
Product : THGAF8T0T43BAIRA
CAPA : 128
DID : 20208BB5CA97FF11
UN : 988F8B48425148474434
I also tried to Boot into Safe Mode. I am not able to shut the phone down while in boot loop, but when booting into Recovery Mode there is a power off selection. When I select it, it just reboots back into Recovery Mode.
When going to SamMobile to download the firmware package, how do I know what country to pick? I see XAA (unknown), AIO (unknown), etc...
My phone is the unlocked US version.
My wife has the same exact phone and it shows this as her software version.
It appears something in my phone is preventing it from booting even though I have successfully flashed stock firmware via Odin. Is there a way to completely wipe my phone via my pc using adb or something and reflash using odin?
I'm not sure what happened. You have done everything that should work. Try different cord, different USB port
A factory wipe should do the trick. Try flashing Tmobile U1 it's unlocked firmware..
Do you remember what you disable? Have you tried your wife's sim? You should be able to flash any unlocked firmware not just XAA they are the same since it provisions to your Sim my play phone is a Note 10+ with mint mobile Sim and it works just fine. Before I unlocked it I used At&t
This is my about phone on my Note 10 + with mint mobile sim
Did you ever use Odin to flash firmware before all this happened?
I have an have always been successful. Its been a long time however, but I used to flash custom roms all the time on my earlier Samsung Notes.
I was told by somebody more experience than I am after trying to flash for me that its an emmc error.
Is this fixable by a repair shop? Worth doing or would it be expensive?
I don't get it. I get a successful flash with Odin.
Is there anyway to fix this? Can the storage on the phone be repartitioned and the stock software reinstalled? I don't see how the emmc could just fail like that. Especially after I was using CCSWE App Manger and disabled apps. Seems very coincidental that the emmc would fail right after doing that. I think I messed up the software with that app. I just don't know how to get it fixed.
{Mod edit: Link to paid application removed. Oswald Boelcke}
Tenacious--M said:
{Mod edit: Link to paid application removed. Oswald Boelcke}
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Hello and good morning, @Tenacious--M
I've removed the link to Google Play Store from your above post. Links to paid applications are only allowed under very special conditions as mentioned in rule no. 11 of the XDA Forum Rules. Additionally, review the forum rules with special emphasis on rule no. 5 and post only ONCE!
Please refrain in future from sharing of paid applications on XDA and from posting duplicates. Thanks for your cooperation.
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