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s6 dual upgrade problem

hi
when i upgraded my s6 dual to android 5.1.1 both sim network were not work, but when i insert just one sim its work correctly...
and now the odin answer fail when i want to flash another rom
i think i need a pit file to repartition my phone
please help me what shoud i do...

Repeat flash with stock 5.1.1 ROM specific to your S6 model via odin.

doseSINGLE sim rom works for DUAL sim variants,,Help!!!

i have a problem with my mobile s6 dual sim international variant and i wanna try fresh instal as it may solve my problem
the mobile box tickets and if i dial *#1234# say model : SM-G920FD
but settings and odin mode say model : SM-G920F (as single sim)
so can i download the G920F rom for my mobile from sammobile
>>>>another Q about country >>>i bought my mobile from Qatar and i live in Egypt
i found many arab country variant including EGYPT / UAE / SAR but no Qatar
so can i download the 1 for Egypt .... it has the same PDA and CSC of my current version
thx ,,,

Sure you can flash it but you will loose the dual sim functionality.

No you wont lose dual sim functionality... ive dual sim and i flashed g920f 5.1.1 rom than installed recovery and flashed a costom rome.xtrolite or dont remeber the correct name rom and works PERFECT ...so fast so smoth

lummujaj said:
No you wont lose dual sim functionality... ive own dual sim and i flashed g920f 5.1.1 rom than installed recovery and flashed a costom rome.xtrolite or dont remeber the correct name rom
Click to expand...
Click to collapse
Of course you have the dual functionality after flashing XtreStoLite because it recognizes you phone as dual sim and automatically flashes the right files for a dual sim. But when you flash a single sim rom you wont have the dual sim fuctionality.

Lol....
Ive downloaded from sammobile g920f... bcoze g920fd doesnt exist as firmware. Idk how it works maybe all g920f packages have included dual sim function. Every official rom stock one, g920f you flash you gona have dual sim. Ive tested it... and others can confirm. Go in general there is a thread "s6 dual sim" and you gona find a lot answers. One of them is what i said

i have installed a variant for g920f egypt by odin mode but nothing changed at all even the csc code of my device is for iran ...it didn't change as nothing happen

You can safely flash the ROM for single SIM G920F to your dual SIM G920FD.

Flashing or Changing CSC without root?

Hello,
1) I just got a FD variant and need European CSC on it as it came with Asian... how can I add XEO without tripping knox??? if there is a way could you please tell me, and secondly where can i get the csc files from?
2) what would happen if I flash F variant firmware on a FD device? will it work? and will the dual sim card manager also work?
THANKS!

GODSPD said:
Hello,
1) I just got a FD variant and need European CSC on it as it came with Asian... how can I add XEO without tripping knox??? if there is a way could you please tell me, and secondly where can i get the csc files from?
2) what would happen if I flash F variant firmware on a FD device? will it work? and will the dual sim card manager also work?
THANKS!
Click to expand...
Click to collapse
First of all: this forum has an EXCELLENT SEARCH-function...
That said: what's your current CSC
When typing in the dialer *#1234#, what's standing behind CSC? Is OXM included?
1. https://forum.xda-developers.com/showpost.php?p=71668306&postcount=3
2. https://forum.xda-developers.com/showpost.php?p=72628005&postcount=280

Hi,
Thanks for the reply, I got my device rooted after all but still cannot locate a XEO csc for the FD variant, don't really needed now as my carrier downloaded something on the phone and it works fine...
My current csc is: ...1AQF7
henklbr said:
First of all: this forum has an EXCELLENT SEARCH-function...
That said: what's your current CSC
When typing in the dialer *#1234#, what's standing behind CSC? Is OXM included?
1. https://forum.xda-developers.com/showpost.php?p=71668306&postcount=3
2. https://forum.xda-developers.com/showpost.php?p=72628005&postcount=280
Click to expand...
Click to collapse

GODSPD said:
Hi,
Thanks for the reply, I got my device rooted after all but still cannot locate a XEO csc for the FD variant, don't really needed now as my carrier downloaded something on the phone and it works fine...
My current csc is: ...1AQF7
Click to expand...
Click to collapse
hi mate
F and FD firmwares are the same so you can use an F csc on a FD phone
Anyhow as you are rooted already , check this thread
https://forum.xda-developers.com/ga...ility-flashable-csc-selection-v1-0-0-t3605264

so is it okay to change the CSC without changing the rom or rooting?

Samsung Galaxy S7 SM-G930F - No Network (SIM - CARD)

Hello Guys, this forum is my last hope. I have a problem with my S7 (DBT Germany), I think after flashing an older stock rom and going back to newest, something happened that my phone doesn't detect any sim cards anymore. If I type *#06# , it only shows the SN Number, no IMEI. WIFI still works without problem, but I can not use my sim card anymore, so it's pretty useless now :crying:
The sim card works on another devices, so it's for sure a problem with my s7, I might have messed up something. What do you think is here the problem and how can I solve it? Any help is much appreciated, I really hope to fix this because my phone is only 2 weeks old.
I currently have the latest Firmware for DBT from updato, (December 14, 2017 for Android 7.0)
IMEI = unknown
SIM Card status: Not avaliable

Have you tried a stock ROM from sammobile.com? Updato and sammobile.com should have the same ROM but maybe there is a difference between the 2?
Did you confirm that the phone is running the latest modem?

audit13 said:
Have you tried a stock ROM from sammobile.com? Updato and sammobile.com should have the same ROM but maybe there is a difference between the 2?
Did you confirm that the phone is running the latest modem?
Click to expand...
Click to collapse
I did not try sammobile because updato and sammobile were the same firmware. Sammobile does have a newer firmware from 28/01 but it says I need to join in order to download.
Is there a way I can fix a damaged/corrupted EFS ? My phone is pretty useless now without sim card detection

Sorry, I know of no way to fix imei issue if a combination of Odin and a stock ROM does not work. You may have to take it to a cell repair shop that can force flash the ROM and EFS using hardware like an octopus box: https://octopusbox.com/eng/features/models

audit13 said:
Sorry, I know of no way to fix imei issue if a combination of Odin and a stock ROM does not work. You may have to take it to a cell repair shop that can force flash the ROM and EFS using hardware like an octopus box: https://octopusbox.com/eng/features/models
Click to expand...
Click to collapse
Hey, flashing a Stock Rom with Odin + Root works for me with no problem, how can I flash my EFS? I do know my S/N and IMEI number..

Do you have an EFS backup? If yes, this may help: https://forum.xda-developers.com/showpost.php?p=72355071&postcount=3

audit13 said:
Do you have an EFS backup? If yes, this may help: https://forum.xda-developers.com/showpost.php?p=72355071&postcount=3
Click to expand...
Click to collapse
I don't have an EFS backup. Any chance without a backup? I do know my S/N and IMEI...

You would need a way to recreate the contents of the folder. Unfortunately, I'm not sure how to create the contents.
Maybe this will help: https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516

audit13 said:
You would need a way to recreate the contents of the folder. Unfortunately, I'm not sure how to create the contents.
Maybe this will help: https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516
Click to expand...
Click to collapse
Hey, I have finally found the solution and my sim card is working again :victory:
It really was just that the firmware was 1 version older.. I downloaded the latest DBT Firmware from samsung-updates (Build Date: 15/01/2018)
Put Bootloader to BL , AP to AP , CP to CP , CSC (not Home_CSC!) to CSC , flashed it and finally my IMEI etc. is back.
Thank you for taking your time trying to help me

Congratulations on your success

I need help verifing if my phone is original and I need to find the firmware

first of all sorry for my bad English.
so I bought this samsung galaxy s7 : "SM-G930FZAAFG"
box said it was made in Vietnam but when I check my IMEI in the net it said this :
G930F Galaxy S7 (SM-G930K)
SIM card size: Nano Sim
and when tried to find the right firmware I found this :
KTC - South Korea - KT South Korea - G930KKKU2ERJ1_G930KKTC2ERJ1_KTC
I installed it and all but only one sim is detected as if the other one dose not exist at all .
but when I bough the phone both sim's were working and the phone has two slots
I am trying to find the right firmware for this phone
plz help me I tried everything
btw can I share my IMEI number ?

What is the model # shown in download mode?
IMEI in the phone matches the IMEI on the box?

audit13 said:
What is the model # shown in download mode?
IMEI in the phone matches the IMEI on the box?
Click to expand...
Click to collapse
this is the model in the download mode : sm-g930k
but I did't find sm-g930k for duos
and yes the IMEI matches the one in the box

zitno said:
this is the model in the download mode : sm-g930k
but I did't find sm-g930k for duos
and yes the IMEI matches the one in the box
Click to expand...
Click to collapse
The model # shown in download mode is the model # for the motherboard in the phone.
Looks like the sm-930k does not support dual sim: https://www.phonemore.com/samsung-galaxy-s7-sm-g930k/specs/3319
Why did you flash different firmware?

audit13 said:
The model # shown in download mode is the model # for the motherboard in the phone.
Looks like the sm-930k does not support dual sim: https://www.phonemore.com/samsung-galaxy-s7-sm-g930k/specs/3319
Why did you flash different firmware?
Click to expand...
Click to collapse
the sound of the speaker was bad so I thought it I flash it, it may get better :/ and the phone was having a problems when I call someone the audio was bad

zitno said:
the sound of the speaker was bad so I thought it I flash it, it may get better :/ and the phone was having a problems when I call someone the audio was bad
Click to expand...
Click to collapse
How is the sound now?

audit13 said:
How is the sound now?
Click to expand...
Click to collapse
still the same

Both sim slots could be used at the same time?
Sounds like the phone may have been put together using different parts.
The 930F and 930k are not the same phone.

audit13 said:
Both sim slots could be used at the same time?
Sounds like the phone may have been put together using different parts.
The 930F and 930k are not the same phone.
Click to expand...
Click to collapse
yea I think so too :/
we I am gonna return it but if I can find firmware that makes both sim slots work so I can return it working as it was
any idea how I can do that ?

zitno said:
yea I think so too :/
we I am gonna return it but if I can find firmware that makes both sim slots work so I can return it working as it was
any idea how I can do that ?
Click to expand...
Click to collapse
Unfortunately, Odin will not let you cross-flash bootloaders or ROMs. Cross-flashing may even brick the phone.
I recommend returning the phone as soon as possible.

audit13 said:
Unfortunately, Odin will not let you cross-flash bootloaders or ROMs. Cross-flashing may even brick the phone.
I recommend returning the phone as soon as possible.
Click to expand...
Click to collapse
thanks mate your reply's where very helpful
I will do that .. it's my only option

I searched and it seems to me that they were installing a custom rom !
becouse I did install a custom rom and it worked fine before flashing the phone with the SM-G930K

so I will install this one :
https://forum.xda-developers.com/galaxy-s7/development/rom-superstoc-rom-v1-0-aroma-t3496520

Good luck. Please report back with your results.
Thanks.

- Update -
I just installed TWRP for SM-G930F :
twrp-3.2.3-0-herolte
and then I add the the custom rom :
SuperMan-Rom SM-G930F V3.0.1_O_Final
and now everything is working fine even the sound and duel sim is working too

if we recap on this phone on the back of the phone it said SM-G930FD
and in Samsung download mode is said : SM-G930K
and on the operation system I am using a custom rom that said SM-G930K

by the way I am stuck with the TWRP can I flash back only the stock bootloader ?

zitno said:
by the way I am stuck with the TWRP can I flash back only the stock bootloader ?
Click to expand...
Click to collapse
You can but changing only the bootloader may cause problems with the installed ROM.
You should only install bootloaders that are meant for the phone model number that is shown on the download screen. Never try to downgrade the bootloader to an earlier version because this may cause additional problems that include bricking the phone.