Database Info

Firmware files - what are the AP, BL, files for?

So I downloaded the latest XSA update which came out yesterday on SamMobile, and flashed all four files - only to find that my phone had been wiped, including my /data partition :'(
So my question is - what are the four categories of files to flash in Odin (AP, BL, CSC, HOME)? And which one is responsible for me losing my data?

If you flash CSC will wipe your data. If you flash CSC_HOME will not wipe your data.
AP: is your system partition with recovery and stuff.
BL: your bootloader
CP: your modem
CSC: this is what features you get in some countries or carriers like Wi-Fi Calling.

Eurofighter_ty said:
If you flash CSC will wipe your data. If you flash CSC_HOME will not wipe your data.
AP: is your system partition with recovery and stuff.
BL: your bootloader
CP: your modem
CSC: this is what features you get in some countries or carriers like Wi-Fi Calling.
Click to expand...
Click to collapse
Thanks for that. So can I flash the CSC file under CSC_HOME?
Sent from my SM-G930F using Tapatalk

Yes. In the CSC slot you put the HOME_CSC file
Sent from my SM-G930F using Tapatalk

Eurofighter_ty said:
Yes. In the CSC slot you put the HOME_CSC file
Click to expand...
Click to collapse
And if the CSC is the same, I can just omit this file?

tangcla said:
And if the CSC is the same, I can just omit this file?
Click to expand...
Click to collapse
No, you must always flash the 4 files!
If your CSC is XSA:
AP, BL, CP & HOME_CSC_XSA
Then your data will stay intact!
Note: this can only be done if you stay at the same CSC; if you want to change your CSC for any reason, you need to flash CSC-file of the new country/region (that will reset your device)

Re-partition?
Do I have to enable the "RE-PARTITION" option in ODIN when changing CSC?
henklbr said:
No, you must always flash the 4 files!
If your CSC is XSA:
AP, BL, CP & HOME_CSC_XSA
Then your data will stay intact!
Note: this can only be done if you stay at the same CSC; if you want to change your CSC for any reason, you need to flash CSC-file of the new country/region (that will reset your device)
Click to expand...
Click to collapse

eldavid39 said:
Do I have to enable the "RE-PARTITION" option in ODIN when changing CSC?
Click to expand...
Click to collapse
Hi mate
It is recommended , changing to a total different CSC may need a change in partition size...
For more info read here
https://www.sammobile.com/forum/showthread.php?t=30800

Mix and match?
Just wondering, could it be possible to mix and match?
Example: Flash the AP of T-Mobile and the CP of AT&T? To avoid incompatible band problems
MAX 404 said:
Hi mate
It is recommended , changing to a total different CSC may need a change in partition size...
For more info read here
Click to expand...
Click to collapse

eldavid39 said:
Just wondering, could it be possible to mix and match?
Example: Flash the AP of T-Mobile and the CP of AT&T? To avoid incompatible band problems
Click to expand...
Click to collapse
Hi
For what I understand all USA ( Snapdragon) versions are compatible , so that would possible BUT to be sure you should ask in the right forum , this is for the international version Exynos

What is the UMS
What is the UMS part of ODIN?

EVERYONE HAVING PROBLEMS TYPING EXIT
Before typing "setsid su<enter>?, type the following: "alias a='exit'<enter>" and THEN type "setsid su<enter>".
IF you do this, you can exit root shell by just "a<enter>", which is cake easy to do.

i made a mistake
cancel
i flashed bl instead of ap what should i do know because phone does't work anymore

I cant seem to find these firmware files anywhere anymore, can someone help me ? I need For Norway/Europe

stoffar87 said:
I cant seem to find these firmware files anywhere anymore, can someone help me ? I need For Norway/Europe
Click to expand...
Click to collapse
updato.com

Thanks
But how to I flash it. My brother has Galaxy S7 but he brings his phone to me and told me how do I flash it.
Fortunately I found this:
http://firmwarearena.com/howtoflash/how-to-flash-samsung-galaxy-s7-using-sp-flash-tool/
But I don't know how SP Flash tool works. Anyone?

haroonbro said:
But how to I flash it. My brother has Galaxy S7 but he brings his phone to me and told me how do I flash it.
Fortunately I found this:
http://firmwarearena.com/howtoflash/how-to-flash-samsung-galaxy-s7-using-sp-flash-tool/
But I don't know how SP Flash tool works. Anyone?
Click to expand...
Click to collapse
Read some threads, the instructions are literally everywhere, they are even under the download on sammobile site, which means you have not read anything

Better off using odin.

BL FAILED
Eurofighter_ty said:
If you flash CSC will wipe your data. If you flash CSC_HOME will not wipe your data.
AP: is your system partition with recovery and stuff.
BL: your bootloader
CP: your modem
CSC: this is what features you get in some countries or carriers like Wi-Fi Calling.
Click to expand...
Click to collapse
Hi
When i try to flash all 4 files together, ODIN fails, i unchecked BL and the flash passed, the phone working fine but i have a serious problem, my phone is French and i flashed Argentina region, now i lost IMEI and Baseband, please help. My phone is ( SM-G930F)
Note: 1. the S/N and IMEI is written on the box
2. I don't know anything about my previous CSC code and i have no idea which firmware was actually my original one.

BRAVE.DANDY said:
Hi
When i try to flash all 4 files together, ODIN fails, i unchecked BL and the flash passed, the phone working fine but i have a serious problem, my phone is French and i flashed Argentina region, now i lost IMEI and Baseband, please help. My phone is ( SM-G930F)
Note: 1. the S/N and IMEI is written on the box
2. I don't know anything about my previous CSC code and i have no idea which firmware was actually my original one.
Click to expand...
Click to collapse
Download XEF firmware for your phone, and flash all 4 files (BL, CP, AP and CSC). It should go back to normal state.

anybody got Samsung s6 6.0.1 firmware ? (G920W8)

hey i need to completely reset my phone and i cant seem to find a website that has this firmware(exept sammobile which is a SLOOOOOOW download)
if anybody has the link to download it, please put it in the comments thankssss

@[email protected]@[email protected] said:
hey i need to completely reset my phone and i cant seem to find a website that has this firmware(exept sammobile which is a SLOOOOOOW download)
if anybody has the link to download it, please put it in the comments thankssss
Click to expand...
Click to collapse
If you install citrio browser, it will boost a little bit your download speed, i download big foles from there(it stills downloading a little slower but citrio gives him a little boost)
Enviado do meu SM-G920F através de Tapatalk

Maybe specify your model and country so maybe someone has the firmware you need uploaded somewhere. Otherwise it is hard to help you.

You can install latest factory firmware for your model with Samsung Smart Switch. It will download directly from Samsung servers at full speed and install it on your phone. It's the simplest, fastest way to go back to stock if you don't already have firmware file.

Stock ROM's for the G920W8 can be found here: https://www.androidfilehost.com/?w=files&flid=38887
Unzip and flash with Odin using Bootloader mode.

LiViD said:
Stock ROM's for the G920W8 can be found here: https://www.androidfilehost.com/?w=files&flid=38887
Unzip and flash with Odin using Bootloader mode.
Click to expand...
Click to collapse
why do i have to flash it using bootloader mode?

@[email protected]@[email protected] said:
why do i have to flash it using bootloader mode?
Click to expand...
Click to collapse
There's no other way to do that?

@[email protected]@[email protected] said:
why do i have to flash it using bootloader mode?
Click to expand...
Click to collapse
Because Odin doesn't work outside bootloader mode. If you don't know what you are doing, have someone more experienced reload the software onto the device.

Also check Samfirm tool (https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647) put in model number and region - auto mode - binary nature + check and decrypt auto then flash in odin

SM-G920F Downgrade from 7.0 to 6.0.0.1 failed

Hi XDA Members,
I have a very curious problem and hope somebody has an idea what could be wrong.
I have a stock phone that has been updated by a friend to 7.0 but now he wants to go back.
I have flashed a one part stock rom with Odin with complete sucess but after reboot (even showing the erasing process)
the phone boots up and 7.0 is still there and even all the apps and data are still available.
So I tried a 4part stock rom and to my surprise the same thing happened. Odin finished with sucess, phone reboots now it
even installs the bloatware apps and yet it is still running 7.0
I am loosing my mind here. Do I need to flash a pit file? Do I need to root before I flash? What am I doing wrong or will I be stuck with 7.0 forever now?
kind regards
Piko

What's the build number of the rom that you're trying to flash?

forumber2 said:
What's the build number of the rom that you're trying to flash?
Click to expand...
Click to collapse
I have tried to flash the following one part rom:
G920FXXU5EQDF_G920FDBT5EQD1_G920FXXU5EQCD_HOME.tar.md5
And the following 4 part rom:
SM-G920F_1_20170426130439_pzt4l73uw1_fac
Thank you for trying to help me. This is much appreciated.

piko666 said:
I have tried to flash the following one part rom:
G920FXXU5EQDF_G920FDBT5EQD1_G920FXXU5EQCD_HOME.tar.md5
And the following 4 part rom:
SM-G920F_1_20170426130439_pzt4l73uw1_fac
Thank you for trying to help me. This is much appreciated.
Click to expand...
Click to collapse
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.

forumber2 said:
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.
Click to expand...
Click to collapse
Thank you very much. I'll try to find one of these roms and will report back to you!

forumber2 said:
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.
Click to expand...
Click to collapse
I have just flashed the G920FXXU5DQA7_G920FDBT5DQA3_G920FXXU5DPL3_HOME.tar.md5 but now if
I start the phone it says "SYSTEM UI STOPPED" when I hit ok - it just says this again and again. Guess this was the wrong
rom once again? I just hope I did not brick the phone yet. Should I flash it again with another ROM? Could you maybe point me to the correct rom I need to download?
many thanks in advance
piko

piko666 said:
I have just flashed the G920FXXU5DQA7_G920FDBT5DQA3_G920FXXU5DPL3_HOME.tar.md5 but now if
I start the phone it says "SYSTEM UI STOPPED" when I hit ok - it just says this again and again. Guess this was the wrong
rom once again? I just hope I did not brick the phone yet. Should I flash it again with another ROM? Could you maybe point me to the correct rom I need to download?
many thanks in advance
piko
Click to expand...
Click to collapse
You've flashed the right firmware.
You just need to format the device;

forumber2 said:
You've flashed the right firmware.
You just need to format the device;
Click to expand...
Click to collapse
Oh my god. That did the trick - and I thought it was over. How did you know what version to flash for the downgrade?
And is there anything good I can do for you to say thank you for helping me out this much? Seriously you helped me soo much.
:highfive:
piko

Im planning to downgrade too,battery life sucks on nougat, really bad its even worse than MM

Soufiansky said:
Im planning to downgrade too,battery life sucks on nougat, really bad its even worse than MM
Click to expand...
Click to collapse
My main reason is that they changed some core things. I now cannot stream anything from the phone (screen capture) without root. Also some oculus apps just keep crashing all the time.

piko666 said:
My main reason is that they changed some core things. I now cannot stream anything from the phone (screen capture) without root. Also some oculus apps just keep crashing all the time.
Click to expand...
Click to collapse
So how is the downgrade now ? Everything going well ?

forumber2 said:
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.
Click to expand...
Click to collapse
Hello I have had the same type of trouble only with mine is >/
I have a Samsung Galaxy S5 from Walmart. It's the Straight talk variant SM-S903VLUDU4APH3. MY phone came with 6.0.1 Mm. I flashed the stock rom 4.4.4 kk using Odin3 V.3.10.6 but upon completion of a successful flash the phone does the reboot process but boots into factory recovery and says installing system update. The says erasing then reboots to where I started from same rom, it's like it allows the phone to get the update but then reboots and does a factory reset.

downgrade from 6.1 to 5.1
forumber2 said:
You need flash rom which starts with G920FXXU5D or G920FXXS5D if you want to downgrade to 6.0.1
Btw, you don't have to flash 4 part rom.
Click to expand...
Click to collapse
Can you help me to downgrade from 6.1 to 5.1.1 , what kind of PDA should i download i fave G920FXXU5DQA7

G920FXXU3QPB2 for example. To download it use SamFirm and flash with latest Odin3 3.12.7.

I have problem with downgrade 7.0 to 6.0.1
Can someone help me downgrade my s6 g920f (android 7.0 12/25/2017) to android 6.0.1 from 01/03/2017. Do i must install some like apps for my computer to do that, or only flash 1 file rom by odin ?

@piko666 : may i know the steps of downgrading the OS? i am using SM-G920F as well...7.0 too laggy...thanks for your guide

S6 Modem downgrade
forumber2 said:
You've flashed the right firmware.
You just need to format the device;
Click to expand...
Click to collapse
Hello, Can you please help me with downgrading my modem. I have S6 G920I and using resurrection Remix ROM based on Android pie.
I have the modem and boot files for stock 5.1.1 ROM
But i am unable to flash it using ODIN.
Can you please tell me what possible mistakes i am doing and a proper solution?
TIA

remocore said:
Hello, Can you please help me with downgrading my modem. I have S6 G920I and using resurrection Remix ROM based on Android pie.
I have the modem and boot files for stock 5.1.1 ROM
But i am unable to flash it using ODIN.
Can you please tell me what possible mistakes i am doing and a proper solution?
TIA
Click to expand...
Click to collapse
Why do you want to downgrade the modem?
And what is your current bootloader & modem version?

forumber2 said:
Why do you want to downgrade the modem?
And what is your current bootloader & modem version?
Click to expand...
Click to collapse
Here is all the info of my phones current state
Model : SM-G920F
Device : zeroflte
Brand Name : Samsung
Chipset : exynos5
Hw Version : exynos7420
Androiad Version : 9
Usb.config : adb
Model ID : zerofltexx-userdebug 9 PQ3A.190801.002 eng.jmpfbm.20191030.002732 test-keys
PDA :
Platform : arm64-v8a
language : en-US
Security Patch : 2019-09-05
Root State : Rooted(20.1:MAGISKSU)
Encryption State : unencrypted
Bootloader State : G920IDVU4FRF3
description : zerofltexx-userdebug 9 PQ3A.190801.002 eng.jmpfbm.20191030.002732 test-keys
Thanks

g955f latest firmware but need to downgrade to 7.0

hi all
i got a samsung s8+ with G955FXXU2CRED_CL13569719 firmware on it.
How can i downgrade it to android 7.0?
If i flash 7.0 software i got failed when i flash BL
If i only flash AP the device shows encryption failed and then then i get boot loop with erasing android icon.
Hope some one has a solution here.

u can try downgrade to CRAP firmware (the 1st Oreo) and then try to downgrade to android 7.0 with all files.
I downgraded from 3 previous versiones of Oreo, didnt try agaik with the later ones but i read that the new boatloader in kinda tricky now.

galarond said:
u can try downgrade to CRAP firmware (the 1st Oreo) and then try to downgrade to android 7.0 with all files.
I downgraded from 3 previous versiones of Oreo, didnt try agaik with the later ones but i read that the new boatloader in kinda tricky now.
Click to expand...
Click to collapse
With crap i also get failed
When i flash Crap AP File only is get stuck in boot loop With installing update. And then reboot.

Got it with a new Combination file

pctronic said:
Got it with a new Combination file
Click to expand...
Click to collapse
Please do share...and did you manage to install TWRP recovery afterwards?

Moe5508 said:
Please do share...and did you manage to install TWRP recovery afterwards?
Click to expand...
Click to collapse
Didnt use TWRP here is link for combination
https://shell.boxwares.com/Download.aspx?L=6583

pctronic said:
hi all
i got a samsung s8+ with G955FXXU2CRED_CL13569719 firmware on it.
How can i downgrade it to android 7.0?
If i flash 7.0 software i got failed when i flash BL
If i only flash AP the device shows encryption failed and then then i get boot loop with erasing android icon.
Hope some one has a solution here.
Click to expand...
Click to collapse
pctronic said:
Got it with a new Combination file
Click to expand...
Click to collapse
pctronic said:
Didnt use TWRP here is link for combination
https://shell.boxwares.com/Download.aspx?L=6583
Click to expand...
Click to collapse
Stability?! Battery?! Lags?! Connectivity?! Source?!
Remove/change PDA reg?! Erase data?! (CSC issue)
Is this rom Nougat or prev Oreo version?!
Some info about this rom?! It comes from some forum's discussion?!

Odin flash works fine but then am on what seems to be bootloop...am stuck on screen with "FACTORY BINARY" message showing and big progress arrows now for 20 minutes...is that normal to take so long?

pctronic said:
Got it with a new Combination file
Click to expand...
Click to collapse
Will this work on s8 too?

hello
This can not be used combination for daily use is only for developers and fix the problem. Now working after this version combination . you can be loaded here
https://updato.com/firmware-archive-select-model?record=E60FECB3632411E89F15FA163EE8F90B
download and flash with odin without CP file and no your mobile go back to 7.0 .
thanks I hope that I have helped you.

nabel_sweed said:
hello
This can not be used combination for daily use is only for developers and fix the problem. Now working after this version combination . you can be loaded here
https://updato.com/firmware-archive-select-model?record=E60FECB3632411E89F15FA163EE8F90B
download and flash with odin without CP file and no your mobile go back to 7.0 .
thanks I hope that I have helped you.
Click to expand...
Click to collapse
Nah this fails on the latest U2CRED ROM with bootloader v2...

Cant find AP for Samsung A530WVLS1ARD1

As in the title I cant find the appropriate AP file for use with odin. My device is a Samsung A8 7.1.1 SM- A530WVLS1ARD1. I tried to redo the AP using A530WLVU1ARD2 and it does not work!
Help is appreciated!!

Swishcoe said:
As in the title I cant find the appropriate AP file for use with odin. My device is a Samsung A8 7.1.1 SM- A530WVLS1ARD1. I tried to redo the AP using A530WLVU1ARD2 and it does not work!
Help is appreciated!!
Click to expand...
Click to collapse
Ok why are you downloading 7.1.1, oreo recently came out for a8 canada already

idk
as long as it is A530Wx it will work or must it be exactly the same??

?
587.saboor said:
Ok why are you downloading 7.1.1, oreo recently came out for a8 canada already
Click to expand...
Click to collapse
can you show me a guide I can use to reset the phone?
The problem is the FRP lock

Swishcoe said:
can you show me a guide I can use to reset the phone?
The problem is the FRP lock
Click to expand...
Click to collapse
Flash full firmware from updato, BL, AP, CP, and CSC, NOT HOME_CSC

587.saboor said:
Flash full firmware from updato, BL, AP, CP, and CSC, NOT HOME_CSC
Click to expand...
Click to collapse
Ok, where can I find the firmware I am having difficulty. Do I use all the same firmware on all the categories or there is a different one for each?

Swishcoe said:
Ok, where can I find the firmware I am having difficulty. Do I use all the same firmware on all the categories or there is a different one for each?
Click to expand...
Click to collapse
I literally just told you, from updato