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realbbb

Senior Member
Dec 22, 2011
273
363
Amazon Fire TV
Samsung Galaxy Tab S
If I try it, it should result in at worst softbrick if incompatible I would think.
Generally a softbrick; always a risk of permanent damage with flashing. Be careful not to increment the bootloader (or security bits) further than available firmware to return back to. If you do, you will have to wait for the original firmware to increment to match, to flash back.


Realbbb
Jump Rock
 

realbbb

Senior Member
Dec 22, 2011
273
363
Amazon Fire TV
Samsung Galaxy Tab S
Was able to research the SM-G781 variants.

G781U - ATT - QKEY1 - SRPTF19A
G781U1 - XAA - QKEY1 - SRPTF19A
G781V - VZW - QKEY0 - SRPTF02B
G781B - XX - QKEY3 - SRPTG02C
G7810 - CHC - QKEY2- SRPTF24A
G781W - XAC - QKEY5 - SRPTG08A

Confirmed that U1 and W currently won't cross-flash.

Anyone have a U and U1? Would love to hear if a successful cross-flash. I would imagine, yes. Ex. ATT to XAA

Currently testing V and U1. Confirmed, currently won't cross-flash.


realbbb
Blue Holder
 
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jemfalor

Senior Member
Was able to research the SM-G781 variants.

G781U - ATT - QKEY1 - SRPTF19A
G781U1 - XAA - QKEY1 - SRPTF19A
G781V - VZW - QKEY0 - SRPTF02B
G781B - XX - QKEY3 - SRPTG02C
G7810 - CHC - QKEY2- SRPTF24A
G781W - XAC - QKEY5 - SRPTG08A

Confirmed that U1 and W currently won't cross-flash.

Anyone have a U and U1? Would love to hear if a successful cross-flash. I would imagine, yes. Ex. ATT to XAA

Currently testing V and U1. Confirmed, currently won't cross-flash.


realbbb
Blue Holder
u1 and u are basically the same variant, with carrier sim lock etc so they are flashable.

different variant uses different signing keys thus its almost impossible to circumvent.
 

realbbb

Senior Member
Dec 22, 2011
273
363
Amazon Fire TV
Samsung Galaxy Tab S
u1 and u are basically the same variant, with carrier sim lock etc so they are flashable.

different variant uses different signing keys thus its almost impossible to circumvent.

Variants, like u1 and u, can't be cross flashed except with patched odin.
Now methods are blocking variant cross flashing; even with patched odin.
This block is enabled by the use of values embedded in the signing of the pit. As long as the values match, cross-flash can happen (ie the first two below). If values differ, no dice (ie the remaining variants).

For instance:
G781U - ATT - QKEY1 - SRPTF19A
G781U1 - XAA - QKEY1 - SRPTF19A
Original odin will not cross flash; patched odin will. Win!

G781U1 - XAA - QKEY1 - SRPTF19A
G781V - VZW - QKEY0 - SRPTF02B
G781B - XX - QKEY3 - SRPTG02C
G7810 - CHC - QKEY2- SRPTF24A
G781W - XAC - QKEY5 - SRPTG08A
Original odin will not cross flash; patched odin will not cross flash. Bummer!

Do your due diligence with variant selection. At least till a new patched method is worked out.


realbbb
Crystal Blob
 
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dm_samsung

Member
Oct 6, 2021
8
2
Hello, i try to switch from sm-g9810 (chinese) to sm-g981u1 (USA) to get all my Google and Samsung apps pre installed, because it seems that the Chinese version hadn't them installed, but the flash always failed.

So I tried to switch within the same region form Chinese to Taiwan an it worked without any problems, I used the patched Odin Version.

Can somebody help me?
@topper89 Do you have Google services after switch only region from Chinese to Taiwan?
 

realbbb

Senior Member
Dec 22, 2011
273
363
Amazon Fire TV
Samsung Galaxy Tab S

dm_samsung

Member
Oct 6, 2021
8
2
Download both firmware, extract and compare PITs. Post QKEY and SRP from each.
I attached PITs file, because I don't know how to read QKEY, SRP.

BEYONDX_KOR_SINGLE.pit - Korean version
BEYONDXQ_USA_SINGLE-TMB-TMobile.pit - USA T-Mobile
BEYONDXQ_USA_SINGLE-VZW-Verizon.pit - USA Verizon

How I can read QKEY and SRP from those files?
 

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  • S10 5G PITs.zip
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realbbb

Senior Member
Dec 22, 2011
273
363
Amazon Fire TV
Samsung Galaxy Tab S
I attached PITs file, because I don't know how to read QKEY, SRP.

BEYONDX_KOR_SINGLE.pit - Korean version
BEYONDXQ_USA_SINGLE-TMB-TMobile.pit - USA T-Mobile
BEYONDXQ_USA_SINGLE-VZW-Verizon.pit - USA Verizon

How I can read QKEY and SRP from those files?

BEYONDX_KOR_SINGLE.pit - G977NKSU5FUF5 - KOR_KX_KOR0 - SRPRK21D005
BEYONDXQ_USA_SINGLE-TMB-TMobile.pit - USA T-Mobile - G977TUVS7FUG6 - NA_TMO_USA1 - SRPSA08A007
BEYONDXQ_USA_SINGLE-VZW-Verizon.pit - USA Verizon - G977UVRU8FUI4 - NA_VZW_USA0 - SRPRK12A008

Ugh. New QKEY marker. Now KOR0, USA1, and USA0. All different SRP values. I would imagine that this will not cross-flash with current methods.

Keep in mind that the bootloader versions are all different. Bootloaders can only be the same or above. Once incremented you may NOT return to an older bootloader version. KOR Bit 5, TMB Bit 7, VZW Bit 8.

You could try flashing; BUT make sure you have firmware for each with all bit 5. Or all bit 7. Or all bit 8. You will not be able to flash back to a lower bit version once upped.

Good luck. Report back on your findings.


realbbb
Wait Date
 
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dm_samsung

Member
Oct 6, 2021
8
2
BEYONDX_KOR_SINGLE.pit - G977NKSU5FUF5 - KOR_KX_KOR0 - SRPRK21D005
BEYONDXQ_USA_SINGLE-TMB-TMobile.pit - USA T-Mobile - G977TUVS7FUG6 - NA_TMO_USA1 - SRPSA08A007
BEYONDXQ_USA_SINGLE-VZW-Verizon.pit - USA Verizon - G977UVRU8FUI4 - NA_VZW_USA0 - SRPRK12A008

How can I get this information from pit files?

Do I need any tool ?

Keep in mind that the bootloader versions are all different. Bootloaders can only be the same or above. Once incremented you may NOT return to an older bootloader version. KOR Bit 5, TMB Bit 7, VZW Bit 8.

The same question as above :) how can I get information about bootloader version from pit?

Good luck. Report back on your findings.

Yes, sure. I'm waiting for parcel.
Thank you realbbb for answer.
 

realbbb

Senior Member
Dec 22, 2011
273
363
Amazon Fire TV
Samsung Galaxy Tab S
How can I get this information from pit files?

Do I need any tool ?

A text editor will show the internal bytes. Near the end, the signature, contains what I am referencing.

The same question as above :) how can I get information about bootloader version from pit?

G977NKSU_5_FUF5
also in the SRP.. SRPRK21D00_5_
bootloader bit 5

G977TUVS_7_FUG6
SRPSA08A00_7_
bit 7

G977UVRU_8_FUI4
SRPRK12A00_8_
bit 8


REALbbb
Hold Loose
 
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Musthysani

Member
Nov 6, 2021
7
0
Nigeria
Good morning. I am using s9 dual sim. Yesterday at night i installed the stock firmware smg960n version 10 on my s9 only to find out that i it is a single sim firmware and i can't install the smg960f firmware back using the normal odin.
I currently have the smg960f firmware named G960FXXSCFTK2_G960FOXMCFTJ2_ECT
can i possibly cross flash using the latest patched odin to make it dual sim again and does it need any special requirement?

Thank you
 

realbbb

Senior Member
Dec 22, 2011
273
363
Amazon Fire TV
Samsung Galaxy Tab S
Good morning. I am using s9 dual sim. Yesterday at night i installed the stock firmware smg960n version 10 on my s9 only to find out that i it is a single sim firmware and i can't install the smg960f firmware back using the normal odin.
I currently have the smg960f firmware named G960FXXSCFTK2_G960FOXMCFTJ2_ECT
can i possibly cross flash using the latest patched odin to make it dual sim again and does it need any special requirement?

Thank you
Patched is the way to crossflash. Since you are going back, it should be fine. Be sure to flash csc and not home csc.


RealBBB
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  • 202
    For those looking for a modified, modded, or patched odin that is a newer build than all the fake and renamed prince comsy 3.12.3 versions floating around.

    I patch recent Odin versions to offer similar functionality to the princecomsy; in that it ignores both the sha256 fails and the model mismatches.
    - Developed and successfully tested for my verizon samsung s8 g950u to g950u1 and combination firmware packages.
    - Confirmed working on an unlocked S9+ g965U1 to VZW g965u
    - additional confirmation: G950w from G950u
    - able to flash T727R4 firmware to T727V
    - confirmed working with S21 5G from G991U to G991U1
    - flashed G998U VZW to G998U1 XAA

    Ignores and bypasses the below stop conditions:
    "FAIL! Model mismatch fail" (all PatcheD versions)
    "FAIL! SHA256 is invalid" (all PatcheD versions)
    "FAIL! Blocked carrier" (PatcheD versions >= 3.14.1)

    Be careful flashing!

    +20180313 - Added Stock odin 3.13.1 sourced from pedant87 / Added PatcheD odin v3.13.1
    +20191211 - Added PatcheD v3.13.3 and original 3.13.3 for windows, Merry Christmas!
    +2020???? - Added the only clean and original v3.14.1 for windows
    +20200216 - Added ModdeD/PatcheD 3.14.1 for windows! Supports newer phone flashing methods. A new check method for a carrier flash halt has been removed!

    Caution #1 - There are many stock/mod/patch copies floating around the internet with redirected links and other misleading claims and changes. The XDA links below are the only source for clean originals and the original 3B files.
    Caution #2 - There is a hoax 3.14.4 version of odin floating about. It appears to be version 3.14.1; same filesize, has internal resource modifications to report newer than 3.14.1, and often includes a known cloud-based client-server communication dll (cpprest141_2_10.dll). I suggest that it be avoided. It adds no additional functionality over 3.14.1.


    When you donate, and this work was helpful to you, do consider donating to this effort by using the DONATE HERE link. Thanks for your support!

    ¡BBB!
    Walking Domestic
    9
    Hey mate,
    Just a quick question / concern .. Just ran an analysis on your file here -> link
    While I can't see too many differences after unzipping your exe and running a comparison with a hex editor against your original odin you provided .. still the online analysis results do make me ask the question
    "please explain?"
    Online analysis of your original odin provided is here -> link

    Please note that Eudummy did not run reverse it on the OP attached executable file. The sha256, executable type, and file size do not match the file he tested at his provided link. I am wondering why he would test a different file with the same filename? Just a plug for reverse it? Anywho... To help calm others...

    The patches/changes are:
    Operationally I patched as indicated in the OP (encryption and model fails).
    All other changes are visual. ie. main graphic bar, version code, and url text/address.

    That is it. Simple and has helped many to flash their phones!


    ¡realBBB!
    Not Your Mate
    6
    Thanks. I wanted to firmware back to G950w from G950u using Oreo and found it. Really appreciate your hard work
    5
    Thanks, thought my firmware was bad since it wouldn't flash with the previous odin. This worked perfect. I used this to flash my galaxy s9+ from U1 to VZW.
    5
    Added 3.13.3 3B Patched to the OP. Merry Christmas!


    realBBB
    Tix Under