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Samsung Galaxy S8 (SM-G9500) CSC - China (CHC) to Hongkong (TGY)

If you have Samsung Galaxy S8 (SM-G9500) CSC - China (CHC) variant phone then you wont be able to use all the Google or various social networking sites features. so simply change the firmware to Hongkong (TGY) but remember one thing whenever you are trying to change the firmware make sure the Bit/SW REV Security Patch should be same otherwise you won't be able to change CSC. That's the only way, i suppose, to get full Google or Social sites.
how to find correct - Bit/SW REV Security Patch - for example,
G9500ZCS6DUD1 - this is Chinese (CHC) SW version i was previously using, now I switched to Hongkong (TGY) version G9500ZHS6DUD1
While choosing the correct FW for your phone, use below links -
https://samfw.com/firmware/SM-G9500 - it shows SW version also
https://www.sammobile.com/samsung/galaxy-s8/firmware/#SM-G9500 - it doesn't show SW version.
I prefer to use samfw because its faster then sammobile.
If you choose different SW version then Odin will stuck or fail the process.
Software required to flash Samsung Mobile - Odin (I used Odin3 V3.13)
No need to unlock bootloader or OEM unlocking.

Hi
do I need to be on same firmware version, or I can update to higher version?
also in odin, do i put all files (ap, bl, cp, csc)?

IMEI is only 000000000000000

I have tried to reset it via odin with its latest official rom along with all its BL, AP, CP, CSC. but nothing is working.
I bought it as a salvage device it had FRP on so i had to unlock it and i think it is a russian phone since it had russian CSC baseband.
Do i have to replace the logic board to solve this? can a IMEI be blocked and turned into 0? Or is there data somewhere that isnt being reset from the odin flash which i have to manually clean?
Download Samsung Galaxy Note 20 Ultra SM-N985F SER Russia firmware
All Samsung firmwares for Galaxy Note 20 Ultra in Russia with model code SM-N985F. We offer free and fast download options. Check them out now.
www.sammobile.com
it had n985fxxu1ath3 but i went directly to the latest one in the link above.
I need to keep knox un-tripped

Question SM-S908B/DS (O2 UK) Help resetting to stock firmware

SM-S908B/DS (O2 UK)
Model: SM-S908B
Region: EUB
Model name: SM-S908B / Galaxy S22 Ultra
Model full name: SM-S908BZWDEUB
I cannot find the original firmware anywhere. When I connect Smart Switch it says failed to connect to the device.
Any help please I just want to reset the phone to factory default.

Check Windows Event Viewer for error messages. Try another port/cable.
Roll back or update the driver.
Access the phone through Disk Management and see if it will connect there, it should.

blackhawk said:
Check Windows Event Viewer for error messages. Try another port/cable.
Roll back or update the driver.
Access the phone through Disk Management and see if it will connect there, it should.
Click to expand...
Click to collapse
I should add, the device is stuck in "An error has occurred while updating the device software" and I also have the message "debore : on_fail_block_custom_bin_oem"

kacsa420 said:
I should add, the device is stuck in "An error has occurred while updating the device software" and I also have the message "debore : on_fail_block_custom_bin_oem"
Click to expand...
Click to collapse
You're in over my head, sorry. Hopefully someone here can help you.

blackhawk said:
You're in over my head, sorry. Hopefully someone here can help you.
Click to expand...
Click to collapse
https://i.redd.it/r0yc1fj9hhl91.jpg

kacsa420 said:
https://i.redd.it/r0yc1fj9hhl91.jpg
Click to expand...
Click to collapse
Can you still access the boot menu via the buttons?

blackhawk said:
Can you still access the boot menu via the buttons?
Click to expand...
Click to collapse
No, if I use the side buttons it just restarts back to this screen ;/

Hold power volume down until screen goes black while device is connected to computer if you are stuck on a certain screen. If device boots back to Emergency screen it's OK you can still flash from that screen. Just keep device connected to computer, hold power volume down until screen goes black. Then quickly hold volume up and down at same time. Again if it boots to Emergence screen, device should still be recognized by modified Odin. Flash stock firmware

Samsung Galaxy S22 Ultra Firmware Download SM-S908B Free Download
Samsung Galaxy S22 Ultra Firmware Download SM-S908B Free Download ⭐ Official and fast update ⭐ Max speed and free download ⭐ Best Samsung Galaxy website
samfw.com

butchieboy said:
Samsung Galaxy S22 Ultra Firmware Download SM-S908B Free Download
Samsung Galaxy S22 Ultra Firmware Download SM-S908B Free Download ⭐ Official and fast update ⭐ Max speed and free download ⭐ Best Samsung Galaxy website
samfw.com
Click to expand...
Click to collapse
I think I'm ****ed,
Model: SM-S908B
Region: EUB
Model name: SM-S908B / Galaxy S22 Ultra
Model full name: SM-S908BZWDEUB
When I search SamFW I cannot find an EUB version, I don't know what to do

Usually the firmware is the same it just provisions to your Sim. I know with United States Snapdragon I can flash any carrier firmware as long as the build number is in line with my carrier.

It appears they all have same build number AVH9

Wait hold off on that

I'm checking with Mohammad...hold tight

What was the actual build number you were on and bootloader? If your bootloader updated to revision 2 you can't flash back to revision 1

Once you find out what build number you have you should be able to flash

butchieboy said:
Once you find out what build number you have you should be able to flash
Click to expand...
Click to collapse
S908BXXU2AVH9

Then you can use any of them from link I sent from Samfw.

As long as it's XXU2AVH9 should be fine. The firmware will provision to you sim

If it fails, don't factory reset just get back to download mode and flash again. Sometimes a second flash of firmware is common

Question OTA updates failing and show ODIN MODE (SVB Fail)!

I have an UK Exynos S22+ And every ota update I try on this phone less than 900mb fails with ODIN MODE (SVB Fail)! Or just fails at 25%
I have tried to reflash clean and from the Odin mode screen to recover it multiple times and to make the error stop but it hasn't worked and every OTA update I attempt still fails.
After reaching 49% it goes back to 25% and fails after which it acts like it's rebooting and then shows the odin mode screen. Or it goes back to the old firmware after failing at 25% outright. It’s getting tiring now.
I also get random reboots on this phone not sure why but every so often the phone just crashes and then restarts.
Anyone have an idea of what I could do? I think giving it to samsung is the only way to get it fixed but what do I tell them about me flashing the phone through odin to recover it?

Yup, take it to Samsung to fix it. It shouldn't be crashing like that

raul6 said:
Yup, take it to Samsung to fix it. It shouldn't be crashing like that
Click to expand...
Click to collapse
Will they still take it under warranty if I tell them I recovered the phone by flashing through odin? Because the phone was effectively bricked otherwise.

I think they will. Get in contact with them, saying what is not working, and they will guide you through the process. No need to mention what you did before

Download this firmware
Download Galaxy S22 SM-S906B (EUX) S906BXXS2AVHD in Samfw - Samsung firmware download
Galaxy S22 SM-S906B (EUX - European Union) S906BXXS2AVHD S(Android 12) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
And load Ap to Ap , BL to BL etc etc...and flash it again !!!
You end up like this because you dont flash the ota with odin ... flash the full firmware that has more than 4gb.

salbaticu said:
Download this firmware
Download Galaxy S22 SM-S906B (EUX) S906BXXS2AVHD in Samfw - Samsung firmware download
Galaxy S22 SM-S906B (EUX - European Union) S906BXXS2AVHD S(Android 12) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
And load Ap to Ap , BL to BL etc etc...and flash it again !!!
You end up like this because you dont flash the ota with odin ... flash the full firmware that has more than 4gb.
Click to expand...
Click to collapse
I am flashing the whole 7gb firmware through odin. The problem I have is with updates via wifi. Those updates keep failing for me which forces me to flash the whole firmware every time to unbrick the phone.

raul6 said:
I think they will. Get in contact with them, saying what is not working, and they will guide you through the process. No need to mention what you did before
Click to expand...
Click to collapse
I will have to try that thank you

Question about N986N

Hi, By some miracle, I bought a note 20 ultra 5g of the Korean version, although it was indicated that it was on exynos, but i found snapdragon. In principle, I do not regret the purchase, but it would be better if Samsung Pay would be unlocked. I tried to change the csc to some other values (SER, WWD, KOO) via the samfw tool (not samkey because it's not supported). I got an error about failed exploit. Maybe it's because I have one ui 5.
So my question is: is it possible to unlock spay for my region?

I just bought mine awhile ago, from my experienced, you have to downgrade sm-n986n to android 10 first before you could change the CSC to KOO.
Downloads:
Spoiler: Odin Patched
https://samfw.com/Odin/Odin3_v3.13.1_3B_Patched_Samfw.com.rar
Spoiler: Android 10
Download Samsung Galaxy Note 20 Ultra 5G SM-N986N KOO Korea N986NKSU1ATK1 firmware
Fast download latest Samsung Galaxy Note 20 Ultra 5G firmware SM-N986N from Korea with N986NKSU1ATK1 and Android version 10
www.sammobile.com
Spoiler: Android 13
Download Samsung Galaxy Note 20 Ultra 5G SM-N986N KOO Korea N986NKSU1GVK1 firmware
Fast download latest Samsung Galaxy Note 20 Ultra 5G firmware SM-N986N from Korea with N986NKSU1GVK1 and Android version 13
www.sammobile.com
Spoiler: Phone By Google
Phone by Google - Apps on Google Play
Reliable phone calls with spam protection, caller ID and more helpful features
play.google.com
Instructions:
Spoiler: How To
I recommend to extract Android 10 and 13 to their respective directories to avoid any problems occurring with files confusion.
1. Power off your phone, then press Volume Up+Down(at the same time, still hold them) insert your USB cable to your computer, after that you can now release your device. Instructions screen appears, press Volume Up to continue.
2. Flashing android 10. Insert BL,... , CSC(Not Home CSC) into their respective option in Odin.
3. If everything is OK you are in android 10, Skip everything. Install "Phone by Google apk" select it as default dialer.
4. In Google dialer(Phone), type the following code: *#*#27262826#*#*.
5. CSC options pop-up for selecting:
"KOO/Single", your device will reboot with bloatwares removed.
6. Flash Android 13 or any version you want to use.
Regards.

Lybopha said:
I just bought mine awhile ago, from my experienced, you have to downgrade sm-n986n to android 10 first before you could change the CSC to KOO.
Downloads:
Spoiler: Odin Patched
https://samfw.com/Odin/Odin3_v3.13.1_3B_Patched_Samfw.com.rar
Spoiler: Android 10
Download Samsung Galaxy Note 20 Ultra 5G SM-N986N KOO Korea N986NKSU1ATK1 firmware
Fast download latest Samsung Galaxy Note 20 Ultra 5G firmware SM-N986N from Korea with N986NKSU1ATK1 and Android version 10
www.sammobile.com
Spoiler: Android 13
Download Samsung Galaxy Note 20 Ultra 5G SM-N986N KOO Korea N986NKSU1GVK1 firmware
Fast download latest Samsung Galaxy Note 20 Ultra 5G firmware SM-N986N from Korea with N986NKSU1GVK1 and Android version 13
www.sammobile.com
Spoiler: Phone By Google
Phone by Google - Apps on Google Play
Reliable phone calls with spam protection, caller ID and more helpful features
play.google.com
Instructions:
Spoiler: How To
I recommend to extract Android 10 and 13 to their respective directories to avoid any problems occurring with files confusion.
1. Power off your phone, then press Volume Up+Down(at the same time, still hold them) insert your USB cable to your computer, after that you can now release your device. Instructions screen appears, press Volume Up to continue.
2. Flashing android 10. Insert BL,... , CSC(Not Home CSC) into their respective option in Odin.
3. If everything is OK you are in android 10, Skip everything. Install "Phone by Google apk" select it as default dialer.
4. In Google dialer(Phone), type the following code: *#*#27262826#*#*.
5. CSC options pop-up for selecting:
"KOO/Single", your device will reboot with bloatwares removed.
6. Flash Android 13 or any version you want to use.
Regards.
Click to expand...
Click to collapse
Thank you for response, but can i change region to SER? Or it will give only some list of available regions for this phone? Like
KTC | LUC | SKC | KOO | WWD

zvshka said:
Thank you for response, but can i change region to SER? Or it will give only some list of available regions for this phone? Like
KTC | LUC | SKC | KOO | WWD
Click to expand...
Click to collapse
I have tried to flash other regions, yet without success. After googling around, I stumbled upon various informations that solved the mysterious of the Note series. Samsung has designed differently for both Korea and U.S device. So, there is no luck in flashing different regions. An important note, your device might become paperweight if you're forcefully flash different regions Rom.
Maybe, there're some legends out there who could make it happen someday.