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I may have bricked the chooch out of my s7 active was wondering if someone can give me the latest version or a backup of the latest version haha (tried to install oreo) NRD90M.G891AUCS2BRC1 is the build number
For bootloader 2, I think the latest full ROM available is BQD4:
https://cloud.mail.ru/public/BGy7/gKs4xzhRE/firmwares/Nougat/G891AUCS2BQD4_7.0_all.7z
Warning, this only applies if you are still on bootloader 2 and haven't gone up to the latest version 3.
YO thanks for the quick reply the room my phone wants
G891AUCS2BRC1 that'd be the latest official update
I guess you need to install BQD4 above, and then work your way up with the OTA files on that cloud page to reach BRC1.
Only issue is the bootloader Is locked so I can't downgrade it to brc1 lol the bra update just came out a couple days ago ,thanks man for helping me out by the way very cool of you
staffeyx said:
I guess you need to install BQD4 above, and then work your way up with the OTA files on that cloud page to reach BRC1.
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im an idiot i just figured out what you said haha i guess i was caught up on the whole i lost my own phone feeling
princessslinky07 said:
im an idiot i just figured out what you said haha i guess i was caught up on the whole i lost my own phone feeling
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Click to collapse
No problem man, I hope it works out for you.
The thing with the bootloader is that it has been on version 2 for quite a while, but in the most recent updates it became upgraded to version 3. You can see it in the file names. For example G891AUCS2BRC1 is still on version 2 while the most recent full Nougat ROM G891AUCS3BRD1 upgrades bootloader to version 3 with no turning back after that, as far as I know.
Not sure if I should update because I'm still hoping for root some day. Should I give up and just download it?
G965U1OYM3ARH7 is the new update. I originally had G965U but was flashed to G965U1 when I learned it gets rid of carrier bloatware, I'm glad I did. I'm on bootloader 2 right now I'm guessing I probably should not update
?
Hey thanks for posting .. I have the same question but I have already updated so hope I'm not screwed for right now lol. I want to download and use that new experimental version of Android p for our device but am pretty sure I need to flash back the the U version (not u1) first. Hopefully I can do that still after the update. Please let me know if you find anything out or have any info on the this for me. Thank you so much I really appreciate it ?
mrindependent said:
Hey thanks for posting .. I have the same question but I have already updated so hope I'm not screwed for right now lol. I want to download and use that new experimental version of Android p for our device but am pretty sure I need to flash back the the U version (not u1) first. Hopefully I can do that still after the update. Please let me know if you find anything out or have any info on the this for me. Thank you so much I really appreciate it ?
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Click to collapse
I am in your exact position, Lol. But yes you need to flash back to U from U1 . I'm loving this Android P though. Yes I took the plung and upgraded my bootloader, I don't think root is coming anytime soon if ever. My front camera is working just fine with Android 10 and the dark mode that can't be turned off at the moment, I wouldn't turn it of anyways, Lol.
Help!
I am getting a security message popup on the p firmware. Any idea what size did wrong or how to fix this? Thank you !!
Gregbmil1 said:
I am in your exact position, Lol. But yes you need to flash back to U from U1 . I'm loving this Android P though. Yes I took the plung and upgraded my bootloader, I don't think root is coming anytime soon if ever. My front camera is working just fine with Android 10 and the dark mode that can't be turned off at the moment, I wouldn't turn it of anyways, Lol.
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mrindependent said:
I am getting a security message popup on the p firmware. Any idea what size did wrong or how to fix this? Thank you !!
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Click to collapse
Mumm.... That can't be good. I am not getting any popups, at least by not yet.
Hello! I'd like to know how I can go back to Oreo, I have pie on the August patch. I have problems with battery drain and with the front camera (over exposes photos) are not taken the same as you see in the preview.
I can't go back with Odin, I get a problem with the bit
Hey there Brandox0, try the instructions in this link, it sure helped me out downgrading.
https://forum.xda-developers.com/showpost.php?p=78923346&postcount=13
brandox0 said:
Hello! I'd like to know how I can go back to Oreo, I have pie on the August patch. I have problems with battery drain and with the front camera (over exposes photos) are not taken the same as you see in the preview.
I can't go back with Odin, I get a problem with the bit
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Click to collapse
you cant. period.
suddenattackdude said:
Hey there Brandox0, try the instructions in this link, it sure helped me out downgrading.
https://forum.xda-developers.com/showpost.php?p=78923346&postcount=13
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Click to collapse
im always leary of a post from 6 months ago that has 3 thanks and zero replies
youdoofus said:
you cant. period.
im always leary of a post from 6 months ago that has 3 thanks and zero replies
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As everyone should, although I tried and it worked. I had plenty of issues with Pie back then, the worst being huge battery drain issues, as well as bigger charging times, so I decided to rollback to Oreo using sammobiles updated oreo version and Odin in order to flash it. Had no problems ever since and everything works fine. Backup your data before you do it though, if you do it. Also, using Frija's downloader is a better idea, since it's faster.
suddenattackdude said:
As everyone should, although I tried and it worked. I had plenty of issues with Pie back then, the worst being huge battery drain issues, as well as bigger charging times, so I decided to rollback to Oreo using sammobiles updated oreo version and Odin in order to flash it. Had no problems ever since and everything works fine. Backup your data before you do it though, if you do it. Also, using Frija's downloader is a better idea, since it's faster.
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Click to collapse
wow! thats cool that you were able to get it done. Weird, but cool. Waas it the same bootloader version? if so, that would explain it, but just odd that an oreo and pie version would cohabitate on the same bootloader.
Also Frija and SamFirm are GODSENDS when it comes to firmware downloading. They are at least 4x faster than sammobile
youdoofus said:
wow! thats cool that you were able to get it done. Weird, but cool. Waas it the same bootloader version? if so, that would explain it, but just odd that an oreo and pie version would cohabitate on the same bootloader.
Also Frija and SamFirm are GODSENDS when it comes to firmware downloading. They are at least 4x faster than sammobile
Click to expand...
Click to collapse
I honestly don't remember the details about the bootloader :/ but it was pretty straightforward. And yes, Frija would definitely saved me a couple of hours downloading the files.. if it existed!
suddenattackdude said:
I honestly don't remember the details about the bootloader :/ but it was pretty straightforward. And yes, Frija would definitely saved me a couple of hours downloading the files.. if it existed!
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Click to collapse
the Frija tool is relatively new. Samfirm has been around for quite a while. They both do the exact same thing and are awesome LoL
Hi,
I just got an S9+ and I really don't like One UI, and I've seen lots of tutorials on how to downgrade to Oreo, though for me I keep getting stuck at recovery.img in Odin and I don't know why. I have tried both BTU and VOD firmware (not sure if my phone was locked or not and I'm in the UK) and nothing works. Please help.
Thanks,
Marco
what error is Odin kicking up when you do this? something about the binary? what firmware are youstarting with and what are you trying to flash exactly?
youdoofus said:
what error is Odin kicking up when you do this? something about the binary? what firmware are youstarting with and what are you trying to flash exactly?
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Click to collapse
So Odin isn't kicking up an error, it just gets stuck on recovery.img every time no matter what I firmware file I try. I am starting with the latest Android Pie One UI firmware and downgrading to Android 8.0 Oreo using firmware from samfrew.
mviscito said:
So Odin isn't kicking up an error, it just gets stuck on recovery.img every time no matter what I firmware file I try. I am starting with the latest Android Pie One UI firmware and downgrading to Android 8.0 Oreo using firmware from samfrew.
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950F or 950U?
youdoofus said:
950F or 950U?
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Click to collapse
SM-G965F Galaxy S9+
mviscito said:
SM-G965F Galaxy S9+
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Click to collapse
thats why i was asking for the firmware version youre on because it would have told me if it was a U or an F LoL. which is totally different from a F and a U (get it? F U?) bad joke... anyways, the F might be able to roll back, but the U for sure is not. Im not well enough versed to go much past this point as i am of the belief that you cannot downgrade, but i could be wrong and dont want to discourage you. Anyways, the entire firmware version youre on and the one youre trying to go to would be helpful. You cant just say "the most recent" because there are many versions of "the most recent" version. Absolutely not trying to mock you or anything, but trust me when i say to post up entire firmware versions, its helpful to those who come to this thread and would like to help out, but dont have the info they need in order to do so
youdoofus said:
thats why i was asking for the firmware version youre on because it would have told me if it was a U or an F LoL. which is totally different from a F and a U (get it? F U?) bad joke... anyways, the F might be able to roll back, but the U for sure is not. Im not well enough versed to go much past this point as i am of the belief that you cannot downgrade, but i could be wrong and dont want to discourage you. Anyways, the entire firmware version youre on and the one youre trying to go to would be helpful. You cant just say "the most recent" because there are many versions of "the most recent" version. Absolutely not trying to mock you or anything, but trust me when i say to post up entire firmware versions, its helpful to those who come to this thread and would like to help out, but dont have the info they need in order to do so
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Click to collapse
Ok just did a quick bit of Googling and I'm on the September 2019 Security Update (Android Pie) and I'm trying to downgrade to the November 2018 Update (Android Oreo). Thank you for your patience I'm a complete novice here!
Edit: I've also tried using a patched version of Odin and unfortunately that also hasn't worked
mviscito said:
Ok just did a quick bit of Googling and I'm on the September 2019 Security Update (Android Pie) and I'm trying to downgrade to the November 2018 Update (Android Oreo). Thank you for your patience I'm a complete novice here!
Edit: I've also tried using a patched version of Odin and unfortunately that also hasn't worked
Click to expand...
Click to collapse
only way is flash a oreo based custom rom. maybe tgp
mviscito said:
Ok just did a quick bit of Googling and I'm on the September 2019 Security Update (Android Pie) and I'm trying to downgrade to the November 2018 Update (Android Oreo). Thank you for your patience I'm a complete novice here!
Edit: I've also tried using a patched version of Odin and unfortunately that also hasn't worked
Click to expand...
Click to collapse
no worries man. grab your phone, go to settings/about phone/software information/baseband version
what is the baseband your phone is currently on and what is the entire alphanumeric of the firmware youre trying to flash?
youdoofus said:
no worries man. grab your phone, go to settings/about phone/software information/baseband version
what is the baseband your phone is currently on and what is the entire alphanumeric of the firmware youre trying to flash?
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Click to collapse
Baseband: G965FXXU6CSGD
BTU ROM: G965FXXS2BRJ6-20181116134320
VOD ROM: G965FXXS2BRK3-20181228140740
Thanks for your help
mviscito said:
Baseband: G965FXXU6CSGD
BTU ROM: G965FXXS2BRJ6-20181116134320
VOD ROM: G965FXXS2BRK3-20181228140740
Thanks for your help
Click to expand...
Click to collapse
not a problem
the bootloader you have on your phone is version U6 and the one youre trying to flash is S2, thats 4 revisions back and im sure thats part of the trouble youre having. Im going to have to look at downgrade procedures in order to find out if its even possible. Kinda surprised that someone else hasnt popped in here such as @The Mad Scientist
---------- Post added at 01:35 PM ---------- Previous post was at 01:29 PM ----------
here is the thread discussing how to do it, but the examples in the guide show far older bootloaders than what youre running. you said that youve seen tutorials on this, do you have any links?
also, the baseband of your phone is from Germany, have you tried a German 8.0?
youdoofus said:
not a problem
the bootloader you have on your phone is version U6 and the one youre trying to flash is S2, thats 4 revisions back and im sure thats part of the trouble youre having. Im going to have to look at downgrade procedures in order to find out if its even possible. Kinda surprised that someone else hasnt popped in here such as @The Mad Scientist
---------- Post added at 01:35 PM ---------- Previous post was at 01:29 PM ----------
here is the thread discussing how to do it, but the examples in the guide show far older bootloaders than what youre running. you said that youve seen tutorials on this, do you have any links?
also, the baseband of your phone is from Germany, have you tried a German 8.0?
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Click to collapse
Two things, 1 that link is the exact one I used first and second wow I never knew I will try a German Android 8.0 thank you do you know what code those ade? (E.g. BTU or XEU idk what these codes are called)
here is the most recent German 8.0
https://www.sammobile.com/samsung/g...e/SM-G965F/DBT/download/G965FXXS2BRL3/249034/
also, if Odin stalls at initializing, then its probably not interfacing with your phone properly. Does it show a device listed as "COM:#"? that pound sign is going to be a number, doesnt matter what that number is, just as long as Odin says "COM:3" or "COM:733" in that little box below the big one in the upper left hand corner
mviscito said:
Two things, 1 that link is the exact one I used first and second wow I never knew I will try a German Android 8.0 thank you do you know what code those ade? (E.g. BTU or XEU idk what these codes are called)
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Click to collapse
these phones are a major learning curve, thats for sure. Ive been rooting and modding phones since the Droid Incredible and HTC Evo (the original evo) days and its just a different world, which makes sense because these phones are asked to do sooooo much more than the old school smartphones ever did. Anyways, those 3 letter codes are called CSC's. "Consumer software Customization" is what they technically call it, but ive ever only heard them referred to as "country specific codes" which makes more sense as theyre bespoke to a country.
youdoofus said:
here is the most recent German 8.0
https://www.sammobile.com/samsung/g...e/SM-G965F/DBT/download/G965FXXS2BRL3/249034/
also, if Odin stalls at initializing, then its probably not interfacing with your phone properly. Does it show a device listed as "COM:#"? that pound sign is going to be a number, doesnt matter what that number is, just as long as Odin says "COM:3" or "COM:733" in that little box below the big one in the upper left hand corner
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Click to collapse
Ok so Odin recognises my device correctly, however the issue then is still it getting stuck at recovery.img, even with the German DBT firmware. Really weird
Edit: Here is exactly where it gets stuck.
https://imgur.com/a/31w8u7V
mviscito said:
Ok so Odin recognises my device correctly, however the issue then is still it getting stuck at recovery.img, even with the German DBT firmware. Really weird
Edit: Here is exactly where it gets stuck.
https://imgur.com/a/31w8u7V
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thats the longest part of the flash, how long does it get stuck there for?
youdoofus said:
thats the longest part of the flash, how long does it get stuck there for?
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Click to collapse
The longest I've left it was 10 minutes, but unlike when I've done successful flashes the progress bar doesn't move.
boys the bootloader is to high. G960FXXS2BRJ6 oreo & G960FXXU6CSGD pie. bootloader block the downgrade. only chance to get oreo back flash a custom rom! i do the same
Alex192088 said:
boys the bootloader is to high. G960FXXS2BRJ6 oreo & G960FXXU6CSGD pie. bootloader block the downgrade. only chance to get oreo back flash a custom rom! i do the same
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Click to collapse
Damn is there any way to downgrade the bootloader or trick it into running Oreo? How else would other people have downgraded as I'm assuming the bootloader version changed between Oreo and Pie.
nope sorry, only way is oreo custom rom. try tgp oero
Hi everyone.
I've just bought this LDU device to a guy, and it seems to be fully functional (excepting some minor things, I can make phone calls and use 4g/5g data connection, etc).
Anyway, I'm a little bit scared that something stops working suddenly, mainly because of the patches that have been applied to make it work, specially for the IMEI (these devices originally don't have one, so it's "patched").
Another thing is that it comes with Android 10, and I'm not sure if I can install another ROM with Android 11 without breaking the patching that makes it work so far.
Anyone with experience with LDU devices could please share some information about it?
Thanks in advance!
Edit1: After some days of testing, I've found the following issue:
-Cannot update via OTA, CSC is WWA which I haven't found anywhere.
-Samsung apps like Pass and Secure Folder don't work, probably due to Admin mode (despite no root app is installed), or it may be related to the CSC too.
The rest keeps working fine so far.
This sounds like a stolen phone i'm afraid. Patching an IMEI is considered illegal.
Any device that has a cellular modem in it (for calls and data), MUST have an IMEI.
If the seller said it didn't have an IMEI, he's lying and you are potentially dealing with a stolen phone.
Thanks for your reply. I thought it was a stolen one at first also (although he told me it was part of a payment from the phone store he works on), but then he had the white box of the LDU devices, so I don't think you can get one of those easily.
Anyway, this device obviously came with a cellular modem because it's working, but I guess the IMEI was patched somehow after reading it in some forums, but not sure. In fact, if you have a way to confirm it, I would be more than happy yo test it and publish the results.
neogeo727 said:
Thanks for your reply. I thought it was a stolen one at first also (although he told me it was part of a payment from the phone store he works on), but then he had the white box of the LDU devices, so I don't think you can get one of those easily.
Anyway, this device obviously came with a cellular modem because it's working, but I guess the IMEI was patched somehow after reading it in some forums, but not sure. In fact, if you have a way to confirm it, I would be more than happy yo test it and publish the results.
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Click to collapse
Hi have you found any new answers or can you give me a link to where you've seen some answers? I'm using a Note 20 ultra LDU and I'd love to upgrade to android 12 but I wanna be sure I have enough information before i try anything.
neogeo727 said:
Hi everyone.
I've just bought this LDU device to a guy, and it seems to be fully functional (excepting some minor things, I can make phone calls and use 4g/5g data connection, etc).
Anyway, I'm a little bit scared that something stops working suddenly, mainly because of the patches that have been applied to make it work, specially for the IMEI (these devices originally don't have one, so it's "patched").
Another thing is that it comes with Android 10, and I'm not sure if I can install another ROM with Android 11 without breaking the patching that makes it work so far.
Anyone with experience with LDU devices could please share some information about it?
Thanks in advance!
Edit1: After some days of testing, I've found the following issue:
-Cannot update via OTA, CSC is WWA which I haven't found anywhere.
-Samsung apps like Pass and Secure Folder don't work, probably due to Admin mode (despite no root app is installed), or it may be related to the CSC too.
The rest keeps working fine so far.
Click to expand...
Click to collapse
Hi I'm using a Note 20 ultra that was previously an LDU. It came on android 10 like yours, I've currently upgraded it to android 12 via odin and everything still works fine. LDU are fully functional phones put in a demonstration mode and void of imeis, aside that nothing wrong with them. You might wanna install a new battery tho since they're batteries are quite overused because they were Live demo units....
Hello, i have An Galaxy s21 ldu and im wondering how to get it to work. I tried getting it an imei but all of those apps dont work. How to get it to work?
EliDevp said:
Hi I'm using a Note 20 ultra that was previously an LDU. It came on android 10 like yours, I've currently upgraded it to android 12 via odin and everything still works fine. LDU are fully functional phones put in a demonstration mode and void of imeis, aside that nothing wrong with them. You might wanna install a new battery tho since they're batteries are quite overused because they were Live demo units....
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Click to collapse
Hi, did you have to root the phone in order to restore the LDU and if no how did you do it without tripping knox?
EliDevp said:
Hi I'm using a Note 20 ultra that was previously an LDU. It came on android 10 like yours, I've currently upgraded it to android 12 via odin and everything still works fine. LDU are fully functional phones put in a demonstration mode and void of imeis, aside that nothing wrong with them. You might wanna install a new battery tho since they're batteries are quite overused because they were Live demo units....
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Click to collapse
Hi, Can you please share a link (probably a video) on how you updated your device from android 10 to 12, also when android 13 comes out, will you be able to update using normal OTA update
samuelayo said:
Hi, Can you please share a link (probably a video) on how you updated your device from android 10 to 12, also when android 13 comes out, will you be able to update using normal OTA update
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Click to collapse
These 2 videos were of help to me
I currently have imei flashed, and I can make calls on the phone, will this method affect the already flashed imei?
samuelayo said:
I currently have imei flashed, and I can make calls on the phone, will this method affect the already flashed imei?
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Click to collapse
Hello sir, please help me to flash IMEI on my S21 live demo. Where can i find a tutorial for that?