Database Develop

how to dow

Hello, I cannot downgrade to Nougat, I keep getting "Sw Rev Check Fail Device 2 Binary 1" on the phone side and ODIN simply says failed. When I try to downgrade from Oreo to Nougat. I have not been able to enable "OEM Unlock".
BTW, Sorry for incomplete title as the title bar disappears and I can only type a little bit.

Kenchinito said:
Hello, I cannot downgrade to Nougat, I keep getting "Sw Rev Check Fail Device 2 Binary 1" on the phone side and ODIN simply says failed. When I try to downgrade from Oreo to Nougat. I have not been able to enable "OEM Unlock".
BTW, Sorry for incomplete title as the title bar disappears and I can only type a little bit.
Click to expand...
Click to collapse
What model do you have? And what firmware version were you on before trying to downgrade? Some firmwares include bootloader updates which cannot be rolled back.

I have a N950F and this is the Oreo image I succesfully flashed "BL_N950FXXU3CRC1_CL13094739_QB17155977_REV00_user_low_ship.tar"
I can flash "COMBINATION_FA71_N950FXXU3ARA5" without a problem which is 7.1.1 But I think it's the bootloader that is giving me issues and since the combination file doesn't include a bootloader (AFAIK) it goes through, but when I try to put in any bootloader from Nougat, the flash fails.
I tried flashing:
-BL_N950FXXU1AQI1_CL12007350_QB14830234_REV00_user_low_ship.tar
-BL_N950FXXU1AQHB_CL12007350_QB14652984_REV00_user_low_ship.tar
and both failed. It's important to note that I'm trying to flash the whole thing, not just the "BL" file. I just pasted the BL file name because I think it holds the information you need.

Ok thanks for providing the info. One more question, what Odin version are you using?

It is not possible to downgrade.

sefrcoko said:
Ok thanks for providing the info. One more question, what Odin version are you using?
Click to expand...
Click to collapse
3.13.1

I have a similar problem. Bought my N950F in Panama but I'd like to change to Brazil's ZTO(unbranded) to be able to use Samsung Pay there.
I got Odin 3.13.1 and the ROM N950FXXU3CRDF_N950FOXM3CRE4_ZTO (latest 8.0.0) from SamMobile. When I try to flash I get the "Check Fail BOOTLOADER" message. Trying to uncheck the BL, I get another error but also not able to flash. Maybe my phone has a newer version that doesn't allow it to in theory "downgrade"?
Any solution?

carlosedp said:
I have a similar problem. Bought my N950F in Panama but I'd like to change to Brazil's ZTO(unbranded) to be able to use Samsung Pay there.
I got Odin 3.13.1 and the ROM N950FXXU3CRDF_N950FOXM3CRE4_ZTO (latest 8.0.0) from SamMobile. When I try to flash I get the "Check Fail BOOTLOADER" message. Trying to uncheck the BL, I get another error but also not able to flash. Maybe my phone has a newer version that doesn't allow it to in theory "downgrade"?
Any solution?
Click to expand...
Click to collapse
Yes some bootloaders can't be downgraded to earlier ones. What firmware version are you coming from?

sefrcoko said:
Yes some bootloaders can't be downgraded to earlier ones. What firmware version are you coming from?
Click to expand...
Click to collapse
@sefrcoko, I'm currently on Android 8.0.0, Baseband N950FXXU4CRG8, Build number R16NW.N950FXXU4CRGA.
I don't know if this is older or newer than the one I'm trying to flash. Is there a way to do it?
Thanks!

carlosedp said:
@sefrcoko, I'm currently on Android 8.0.0, Baseband N950FXXU4CRG8, Build number R16NW.N950FXXU4CRGA.
I don't know if this is older or newer than the one I'm trying to flash. Is there a way to do it?
Thanks!
Click to expand...
Click to collapse
Hi, yes you are on the "U4" bootloader and trying to downgrade to the "U3" bootloader (look at those characters in the build numbers, that's the bootloader version). Can't downgrade from u4 to u3 though.

sefrcoko said:
Hi, yes you are on the "U4" bootloader and trying to downgrade to the "U3" bootloader (look at those characters in the build numbers, that's the bootloader version). Can't downgrade from u4 to u3 though.
Click to expand...
Click to collapse
@sefrcoko this build number can bootloader unlock? i have same build number, i plan to unlock bootloader

paroys said:
@sefrcoko this build number can bootloader unlock? i have same build number, i plan to unlock bootloader
Click to expand...
Click to collapse
The Exynos models are all bootloader unlocked as far as I know.

sefrcoko said:
The Exynos models are all bootloader unlocked as far as I know.
Click to expand...
Click to collapse
Thanks , I'm already rooted haha:cyclops:

Can I flash everything except the bootloader? Will it work?
Do I have any option?
Thanks!

Accidentally Flashed TWRP img.file as boot(Samsung Note 8 N950F)

Hello,
i accidentally flashed recovery.img as boot partition on Samsung Note 8 (N950F) anyone can help me plz

mia990 said:
Hello,
i accidentally flashed recovery.img as boot partition on Samsung Note 8 (N950F) anyone can help me plz
Click to expand...
Click to collapse
Just flash the stock rom with Odin (13.3.1), there is probably a single file you can flash but I am unsure of which one it is. Hopefully someone will know though.

stonedpsycho said:
Just flash the stock rom with Odin (13.3.1), there is probably a single file you can flash but I am unsure of which one it is. Hopefully someone will know though.
Click to expand...
Click to collapse
i wiped the system :l im so stupid

i have tried many firmware stock however i end up with error device 7 Binary 5 :/ My mobile is Samsung note 8 N950F/DS - android 9.0 please help i can't find the right firmware stock!!

mia990 said:
i have tried many firmware stock however i end up with error device 7 Binary 5 :/ My mobile is Samsung note 8 N950F/DS - android 9.0 please help i can't find the right firmware stock!!
Click to expand...
Click to collapse
I believe that error is due to you trying to flash filmware with is older than what is on the device, ie you can't downgrade the bootloader (you are trying to flash bootloader 5 on bootloader 7) So you need to download the latest filmware. Head to "SamMobile" and you can use their search function in the filmware section to find the filmware you need.

stonedpsycho said:
I believe that error is due to you trying to flash filmware with is older than what is on the device, ie you can't downgrade the bootloader (you are trying to flash bootloader 5 on bootloader 7) So you need to download the latest filmware. Head to "SamMobile" and you can use their search function in the filmware section to find the filmware you need.
Click to expand...
Click to collapse
well im so stupid :l i dont know which firmware i need also i downloaded the latest firmware from sammobile but still same error :l

mia990 said:
well im so stupid :l i dont know which firmware i need also i downloaded the latest firmware from sammobile but still same error :l
Click to expand...
Click to collapse
Don't be too hard on yourself, just because you are not familiar with things does not make you stupid! Behind every master is a trail of mistakes...
I can't find specific N950F DS filmware so I will assume you can use normal N950F filmware.
https://www.sammobile.com/samsung/galaxy-note-8/firmware/SM-N950F/

Fail to flash with odin to downgrade from android 10

About a year ago, I downloaded firmware for N960F from updato and downgraded from Pie to Oreo using Odin and it went all so well.
This time around I'm trying to downgrade from Android 10 to the exact same firmware version I used back then, just downloaded from updato yesterday.
Thing is, is doesn't seem to want to flash.. When I use the csc file Odin gets stuck at the recovery.img step. If I use the home_csc file, flashing starts, but is frozen at the start of the system step and nothing happens.
What is going wrong and what can I do?

mhamdyl08 said:
About a year ago, I downloaded firmware for N960F from updato and downgraded from Pie to Oreo using Odin and it went all so well.
This time around I'm trying to downgrade from Android 10 to the exact same firmware version I used back then, just downloaded from updato yesterday.
Thing is, is doesn't seem to want to flash.. When I use the csc file Odin gets stuck at the recovery.img step. If I use the home_csc file, flashing starts, but is frozen at the start of the system step and nothing happens.
What is going wrong and what can I do?
Click to expand...
Click to collapse
You can downgrade to pie android 9.0 but not oreo since you jumped to android 10
Android 10 and android 9 pie is on bootloader 3 and oreo is on bootloader 2 & 1 so impossible to downgrade you Cannot go back to oreo.
Odin will fail to flash.

Trex888 said:
You can downgrade to pie android 9.0 but not oreo since you jumped to android 10
Android 10 and pie is on bootloader 3 and oreo is on bootloader 2 & 1 so impossible to downgrade you Cannot go back to oreo.
Odin will fail to flash.
Click to expand...
Click to collapse
As I previously mentioned, last year I managed to downgrade from Pie to Oreo. Anyway, I just downloaded Pie firmware and tried flashing it and it does exactly like I said above, using each csc file, freezes at its respective step.
What could be the problem? Odin?

mhamdyl08 said:
As I previously mentioned, last year I managed to downgrade from Pie to Oreo. Anyway, I just downloaded Pie firmware and tried flashing it and it does exactly like I said above, using each csc file, freezes at its respective step.
What could be the problem? Odin?
Click to expand...
Click to collapse
As previously mentioned you can downgrade, but only to an earlier version of Android if the bootloader version is the same as the one you're currently on.
So Oreo came with bootloader 1 and later versions had bootloader 2
Pie came with bootloader 2, 3 and last version had bootloader 4
Android 10 comes with bootloader version 4
So from Android 10 you may download to later version of Pie with bootloader 4 only.

mhamdyl08 said:
As I previously mentioned, last year I managed to downgrade from Pie to Oreo. Anyway, I just downloaded Pie firmware and tried flashing it and it does exactly like I said above, using each csc file, freezes at its respective step.
What could be the problem? Odin?
Click to expand...
Click to collapse
Try factory reset first from recovery before flashing
.use latest version of odin
Try reboot your pc and different usb cable.
I recommend you to use patched odin from link below
https://forum.xda-developers.com/attachment.php?attachmentid=4899843
Also regarding csc the firmware comes with 2 csc files so Don't use "HOME_CSC_OMC" file
just use " CSC_"OMC

paul_59 said:
As previously mentioned you can downgrade, but only to an earlier version of Android if the bootloader version is the same as the one you're currently on.
So Oreo came with bootloader 1 and later versions had bootloader 2
Pie came with bootloader 2, 3 and last version had bootloader 4
Android 10 comes with bootloader version 4
So from Android 10 you may download to later version of Pie with bootloader 4 only.
Click to expand...
Click to collapse
OK! can I downgrade the bootloader? i. e. from version 4 to 1?

Trex888 said:
Try factory reset first from recovery before flashing
.use latest version of odin
Try reboot your pc and different usb cable.
I recommend you to use patched odin from link below
https://forum.xda-developers.com/attachment.php?attachmentid=4899843
Also regarding csc the firmware comes with 2 csc files so Don't use "HOME_CSC_OMC" file
just use " CSC_"OMC
Click to expand...
Click to collapse
what if I lost my recovery after flashing an old one? always I got download mode instead of recovery

If i have twrp installed, can i flash older update with OLDER BOOTLOADER?

I am on dec 12 android 10 update right now. I've always wanted to try an early version of android 9 to check some different display qualities. But it obviously has older bootloader version. İf i install twrp, can i flash an update with older bootloader?
-Im rooted with magisk

theblitz707 said:
I am on dec 12 android 10 update right now. I've always wanted to try an early version of android 9 to check some different display qualities. But it obviously has older bootloader version. İf i install twrp, can i flash an update with older bootloader?
-Im rooted with magisk
Click to expand...
Click to collapse
No. Samsung won't allow you to flash lower bootloader version numbers firmware.

spawnlives said:
No. Sansung won't allow you to flash lower bootloader version numbers firmware.
Click to expand...
Click to collapse
Can I downgrade the Samsung Bootloader from SW Rev 3 to 2?
Hi, I want to downgrade my SM-A310F to earlier Android versions, but Odin blocks this with the Error: "SW REV. CHECK FAIL. DEVICE: 3. BINARY: 2." So apparently I can only install firmware files which come with the same Bootloader I'm currently...
forum.xda-developers.com
i saw this and thought maybe its possible

theblitz707 said:
Can I downgrade the Samsung Bootloader from SW Rev 3 to 2?
Hi, I want to downgrade my SM-A310F to earlier Android versions, but Odin blocks this with the Error: "SW REV. CHECK FAIL. DEVICE: 3. BINARY: 2." So apparently I can only install firmware files which come with the same Bootloader I'm currently...
forum.xda-developers.com
i saw this and thought maybe its possible
Click to expand...
Click to collapse
I have seen a few posts on downgrading OS version. They have been on older android version nothing on recent versions. I have not tried any methods to downgrade as most methods i've read there can be issues with doing so (if it works at all) in regards to something not working properly . Also all the methods i've seen don't downgrade you bootloader version.

I can't flash official firmware in S10. Why?

Hi
I have a Samsung Galaxy S10 (beyond1lte), and I flash a custom rom because I want to try Android 13. Now, I want to restore the old system. When I try to restore with Odin I got this error:
SW REV. CHECK FAIL(BOOTLOADER) DEVICE:16, BINARY: 14
pit_binary_flash - Unsupported Version.
I use Odin v3.14.4.
Anyone have some ideas?

The error is clear - your bootloader is at version 16, and the file has bootloader 14. You cannot downgrade the bootloader at all, on a Snapdragon phone. Exynos may have some ways, but I am not familiar with the process.

Thanks for your answer!
I have an Exynos phone.

lanoxy said:
Hi
I have a Samsung Galaxy S10 (beyond1lte), and I flash a custom rom because I want to try Android 13. Now, I want to restore the old system. When I try to restore with Odin I got this error:
SW REV. CHECK FAIL(BOOTLOADER) DEVICE:16, BINARY: 14
pit_binary_flash - Unsupported Version.
I use Odin v3.14.4.
Anyone have some ideas?
Click to expand...
Click to collapse
You need install last version.

ZmisiS said:
You need install last version.
Click to expand...
Click to collapse
The last odin version?

lanoxy said:
The last odin version?
Click to expand...
Click to collapse
Last version firmware of Samsung. I think it is HVJ5. For Switzerland (AUT) last version is HWA3.
Can last version of ODIN. Version is 3.14.4.
Last version you can download from samfw.

ZmisiS said:
Last version firmware of Samsung. I think it is HVJ5. For Switzerland (AUT) last version is HWA3.
Can last version of ODIN. Version is 3.14.4.
Last version you can download from samfw.
Click to expand...
Click to collapse
Thanks! I will try it.

ZmisiS said:
Last version firmware of Samsung. I think it is HVJ5. For Switzerland (AUT) last version is HWA3.
Can last version of ODIN. Version is 3.14.4.
Last version you can download from samfw.
Click to expand...
Click to collapse
It worked! Thanks man!

lanoxy said:
It worked! Thanks man!
Click to expand...
Click to collapse
OK. You are welcome.