Develop Bugs

A powerful bomb problem

I have a Galaxy Tab S4 device
I installed the following file on it
COMBINATION_FAC_FA81_T835XXU2ARI2_FACFAC_CL14168542_QB19864423_REV00_user_mid_noship_MULTI_CERT.tar.md5
Now the device has reached an interesting and strange situation that I do not know
I want to go back to the previous situation.
I can not get back to download mode.
I want to install back the real firmware.
How do I get out of this situation or I can switch back to download mode.

משה בניית אתרים said:
I have a Galaxy Tab S4 device
I installed the following file on it
COMBINATION_FAC_FA81_T835XXU2ARI2_FACFAC_CL14168542_QB19864423_REV00_user_mid_noship_MULTI_CERT.tar.md5
Now the device has reached an interesting and strange situation that I do not know
I want to go back to the previous situation.
I can not get back to download mode.
I want to install back the real firmware.
How do I get out of this situation or I can switch back to download mode.
Click to expand...
Click to collapse
Suddenly I found the place he could lead me away to the download page.
But he wants a password.
What can I do to find the password.
Misha knew?

Suddenly I found the place he could lead me away to the download page.
But he wants a password.
What can I do to find the password.
Misha knew?

Connect your device to a PC.
Then using adb type the following into a command prompt:
adb reboot download

Then I tried to re-install, and installed something wrong, and it wrote me this:
SCURIYY EROR: THIS DEVICE HAS DEEN FLASHED WITH HNANAHORIZED SOFTWARE & IS LOCKED. CALL YUR MOBILE OPERATOR FPR ADDITIONAL SUPPORT. PLEASE NOTE THAT REPAIR / RETURN FOR THIS ISSUE MAY HAVE ADDITIONAL COST.
I gave it to the repair shop, I hope they will succeed and that it's cheap ...

ashyx said:
Connect your device to a PC.
Then using adb type the following into a command prompt:
adb reboot download
Click to expand...
Click to collapse
Thanks for that tip, Ashyx. That saved my day. BTW, what is that password that the Factory Binary SW asks for? What's the reason for a password there?
I was trying this "Factory Binary" (combination) firmware because as soon as Pie came out for my SM-T835 (Galaxy Tab S4), it was available only for France (CSC = XEF) and I wanted to preview Pie/One UI in my device. Then my region's firmware (Brazil Open, CSC= ZTO) came out and I flashed it on the tablet. For some reason, my CSC became CHO (Chile Open), and I wasn't able to revert it back to ZTO (although it's a Multi-CSC and contain both regions) . Then I flashed
COMBINATION_FAC_FA81_T835XXU2ARI2_FACFAC_CL14168542_QB19864423_REV00_user_mid_noship_MULTI_CERT.tar.md5
(AP only) after having flashed official
T835UBU2ARL1_CL14803871_QB20870118_REV00_user_low_ship_MULTI_CERT_meta.tar.md5
but after entering code *#243203855#, as described in
https://www.sammobile.com/forum/threads/39155-How-to-change-CSC-with-a-combination-file
the code was recognized (cleared from the dialer) but no CSC selection appeared.
Do you have an idea where it went wrong?
Thanks in advance.

Changing the Region on the galaxy active 2 including R830XXU1BSI9 update

Most old methods of changing the region on the samsung watches don't work anymore. Given their return policy I thought I bought expensive junk.
*#272*719434266344#
Click to expand...
Click to collapse
starts the csc selection but doesn't actually change the region.
TL;DR you need to install the combination firmware and edit two files
INFO: Netodin works fine in linux as well with wine since it works over the wifi
1. Start NetOdin3 click options and disable auto reboot
2. Click AP and select the combination firmware
3. Hold reboot button on the Samsung watch, when the reboot screen shows up press home multiple times to get into the boot menu
4. Jump to the Download (Wireless) and hold the boot button again to get into the Firmware download menu
5. Press the same button to more times to switch the watch to AP mode
6. Connect your wifi to the watch SM-R830-someid
7. In NetOdin3 press Start to flash the combination firmware
8. Click reset and now press CSC button
9. Select the CSC md5 and press start
10. When you reboot the device hold the boot button again until you enter the boot menu again
11. Select recovery and let the device restart
12. Enter settings -> About watch -> Software -> Tap software version until debug mode starts (you may need to restart your watch)
13. Connect watch to wifi
14. sdb connect <watchip>
15. sdb root on
16. sdb shell
17. backup active-customer.info: sdb pull /csa/csc/csc-active-customer.inf
18. backup prodcode.dat: sdb pull /csa/imei/prodcode.dat
19. edit /csa/csc/csc-active-customer.inf and replace csc code (I used vim and the XAR for the US version, https://www.geeksforgeeks.org/vi-editor-unix/ )
20. edit /csa/imei/prodcode.dat and replace last three characters to csc code you want (don't enter the csc selection after this it will reset it to the factory region)
21. reboot the device into recovery (i used /usr/bin/csc-util --reboot customer_change but i'm not sure it's necessary)
22. run netodin again and select AP, BL and CSC to flash stock
23. enjoy samsung pay if you have a US credit card (seems like you no longer need to install samsung pay apks on non samsung phone it's part of the wearables app)
R830 combination firmware
https://www.file-upload.net/download-13751174/combination-R830XXU1ASI2.7z.html
R830 3 file firmware
https://www.file-upload.net/download-13751206/multi-3file-R830XXU1BSI9.7z.html
sha256 checksums:
e719a024540706c07ae956c2a737b43dcaefa2b3335b1118121b6ca8168089ab AP_R830XXU1BSI9_usr.tar.md5
d0be4fdd7f5abaa6a4520f487b85dec14f94dd9d14a239fde69f5281817f7d99 BL_R830XXU1BSI9_usr.tar.md5
8f28bee9aa56b5c8d2fb8fa7bf16ab5cf0c3bff5fc547e2ada18a90c161f61e5 COMBINATION-FT40_R830XXU1ASI2.tar.md5
efe5e799c95c70aa1de8cced5a544bc471b2b74f61a3babffa72a7e295804225 CSC_OXA_R830OXA1BSI9_usr.tar.md5
Click to expand...
Click to collapse
Thanks to @adfree for the links and purcival for the order of how to flash the combination firmware and stock after
[0] Netodin
[1] how to change region on samsung gear s3
[2] combination firmware for sm-r820 by @adfree
[3] sdb in tizen studio CLI tools section

Hi,
Can l use this method just for updating the firmware of my watch?l'm still on R830XXU1ASHF.. if yes should l follow all these steps??
Thanks

What csc your watch?

tb_ said:
What csc your watch?
Click to expand...
Click to collapse
Thank you for your reply,l bought my watch in UK.
According to the list the csc is BTU-UNITED KINGDOM.

A Beginner
Hi,
First of all I want to thank you guys for the grat work.
I want to say that I am actually a beginner or amature when it comes to what you are doing
The instructions are very clea. But I would really appreciate it if anybody describes what to do with more details, especially the codes of sdb. Just some more details
It would be great if you can upload a video "If possible"
1. What is the worst thing that might happen if I do something wrong? Can the watch be ruind? Can I fix it if it happens?
2. Where can I find the csc of my country "Sweden" I googled it and found like 5 or 6 different csc !! Is there any trusted source?
3. Is it appliable to R820??? the 44mm model? or do I need to do something different in my case??
Thanks in advance

Coming from the other thread to confirm this worked for me, thanks a ton! Didn't think it would be that simple with just editing two text files.. lol
For those who missed it(I did), some steps are missing where one has to repeatedly connect back to AP every time something has to be done in NetOdin.
Also if anyone is confused about the steps, it's pretty much the same process for all samsung watches so just search for it on youtube, it's there.
Out of curiosity, where did you get the firmware from?? @tb_

2avrmillion said:
Coming from the other thread to confirm this worked for me, thanks a ton! Didn't think it would be that simple with just editing two text files.. lol
For those who missed it(I did), some steps are missing where one has to repeatedly connect back to AP every time something has to be done in NetOdin.
Also if anyone is confused about the steps, it's pretty much the same process for all samsung watches so just search for it on youtube, it's there.
Out of curiosity, where did you get the firmware from?? @tb_
Click to expand...
Click to collapse
Hi ,
Thanks for your feedback,are the sdb thing code mandatory?on youtube they only add the 3 or 4 files on odin and just flash it...

Hey guys, firstly thankyou! This worked perfectly and now I'm able to use Samsung pay down in Australia! Only thing that I would add from the perspective of being a complete beginner to Odin, is how to save the files when you edit the CSC (press escape then type ":wq") it took me an extra 20 minutes to figure it out and I thought someone might find it useful

2avrmillion said:
Out of curiosity, where did you get the firmware from?? @tb_
Click to expand...
Click to collapse
Got it from a third party. I was worried that it was counterfeit so before installing it I went through the system files to see if it's really the right model. But I can of course not guarantee that it wasn't modified by a third party. But I kinda assume that samsung won't boot from any random image given that you can't downgrade Samsung and even their tizen to any version you want apparently.
dodo1515 said:
Thank you for your reply,l bought my watch in UK.
According to the list the csc is BTU-UNITED KINGDOM.
Click to expand...
Click to collapse
{tizen} % cat preconfig/BTU/preset/csc-preset.ini
[default]
keyboard_lang="en_GB"
keyboard_preinstalled_lang="1^en_GB#en_US#de_DE#fr_FR#it_IT#pl_PL^en_GB
Click to expand...
Click to collapse
The csc.img has BTU inside. But I can't guarantee you anything when I ran this with my zone set to XTC it was booting fine but I couldn't get my phone to connect / initialize the watch after the factory reset. But not sure if it was the app or because i didn't properly reset or if I maybe shouldn't have reset.
So I can tell you that it will boot without issues but whether it works no idea. Maybe someone else can comment on that.

Highpryority said:
Hey guys, firstly thankyou! This worked perfectly and now I'm able to use Samsung pay down in Australia! Only thing that I would add from the perspective of being a complete beginner to Odin, is how to save the files when you edit the CSC (press escape then type ":wq") it took me an extra 20 minutes to figure it out and I thought someone might find it useful
Click to expand...
Click to collapse
I think you are talking about steps 17 and 18. If so can you please till me a bit more detailed how to do these steps ! I mean Do we edit manually in the sdb?? or how are we editing? Why do we need to save the files after editing? there is nothing about saving files in the steps above!
Sorry if my questions are silly but I am a real beginner here!

tareqsy91 said:
1. What is the worst thing that might happen if I do something wrong? Can the watch be ruind? Can I fix it if it happens?
Click to expand...
Click to collapse
No one will give you guarantees on this because no one wants to blame if something goes wrong. But if you try absolutely under no circumstances interrupt the flashing process and absolutely don't use the wrong model ROM. Also to be safe don't try to flash a firmware that has a lower version than your current one.
tareqsy91 said:
2. Where can I find the csc of my country "Sweden" I googled it and found like 5 or 6 different csc !! Is there any trusted source?
Click to expand...
Click to collapse
csc usually depends on the vendor. So there are a bunch of sweden csc's . But you should be able to find your current csc in /cas/imei/prodcode.dat
a list is on droid views
tareqsy91 said:
3. Is it appliable to R820??? the 44mm model? or do I need to do something different in my case??
Click to expand...
Click to collapse
r820 is the 44mm bluetooth model.
825 and 835 are lte with one version being US and the other being global I believe.

tb_ said:
No one will give you guarantees on this because no one wants to blame if something goes wrong. But if you try absolutely under no circumstances interrupt the flashing process and absolutely don't use the wrong model ROM. Also to be safe don't try to flash a firmware that has a lower version than your current one.
r820 is the 44mm bluetooth model.
825 and 835 are lte with one version being US and the other being global I believe.
Click to expand...
Click to collapse
Lower frimware? I have Tizen version 4.0.0.7
1. Do you know if the availabe combination frimware for R820 is of a lower frimware??
2. Yes My R820 is the 44mm bluetooth. thats correct. I guess I should use R820 which you linked in your original post!
3. Can you please describe more about steps 17-18 I didn't really understand how to edit! It's my first time using this sdb thing
Thanks for your patience everybody answering or even reading my questions

I think I am the most commenting member on this topic.
I have read a lot and almost all the details in each shared link in this thread.
I am trying hard I swear. Lately after downloading the shared files in the links in the original post. I can't start the file "web-cli_Tizen_Studio_3.3_windows-64"
It is just flashing a cmd window and nothing happens after that!
What should I do in this case??
The other file in the link "web-ide_Tizen_Studio_3.3_windows-64" is telling I should have JDK software which I installed but It didn't help anyway!

tareqsy91 said:
I think I am the most commenting member on this topic.
I have read a lot and almost all the details in each shared link in this thread.
I am trying hard I swear. Lately after downloading the shared files in the links in the original post. I can't start the file "web-cli_Tizen_Studio_3.3_windows-64"
It is just flashing a cmd window and nothing happens after that!
What should I do in this case??
The other file in the link "web-ide_Tizen_Studio_3.3_windows-64" is telling I should have JDK software which I installed but It didn't help anyway!
Click to expand...
Click to collapse
Don't use that because I had the same issue in Windows 10. Go to https://forum.xda-developers.com/showpost.php?p=74585286&postcount=330 and download SDBstarterKidv1.zip. Extract it and run ansicon.exe under data/tools folder. It will open a command prompt.

shinzomask said:
Don't use that because I had the same issue in Windows 10. Go to https://forum.xda-developers.com/showpost.php?p=74585286&postcount=330 and download SDBstarterKidv1.zip. Extract it and run ansicon.exe under data/tools folder. It will open a command prompt.
Click to expand...
Click to collapse
Thanks for the advice
I haven't done Netodin steps yet.
I am trying now to just connect the watch to the computer through the wifi network.
I have debugging mode on in the watch but I still can not connect to the watch
It keeps telling me failed to connect
connecting to 192.168.0.16:26101 ...
failed to connect to 192.168.0.16:26101
Is it normal I can't connect before doing the netodin steps??

tareqsy91 said:
Thanks for the advice
I haven't done Netodin steps yet.
I am trying now to just connect the watch to the computer through the wifi network.
I have debugging mode on in the watch but I still can not connect to the watch
It keeps telling me failed to connect
connecting to 192.168.0.16:26101 ...
failed to connect to 192.168.0.16:26101
Is it normal I can't connect before doing the netodin steps??
Click to expand...
Click to collapse
Normally the watch comes up with a prompt to allow your pc to connect to your watch. Maybe you might have to restart your watch. I would try the netodin step first because it might be more straightforward to connect the combination firmware to the computer because I didn't get any prompt on that.
Also maybe check that your virus scanner/firewall isn't blocking access.

shinzomask said:
Normally the watch comes up with a prompt to allow your pc to connect to your watch. Maybe you might have to restart your watch. I would try the netodin step first because it might be more straightforward to connect the combination firmware to the computer because I didn't get any prompt on that.
Also maybe check that your virus scanner/firewall isn't blocking access.
Click to expand...
Click to collapse
I've tried to turn off my antivirus and firewall but still no connection.
The newer versions of sdb 4.1.8 is showing the following:
The version of SDB client (4.1.8) and server (2.2.60) are different.
This may cause version compatibility problems.
It is recommended to use SDB server 4.1.8. *

I've tried to turn off my antivirus and firewall but still no connection.
The newer versions of sdb 4.1.8 is showing the following:
The version of SDB client (4.1.8) and server (2.2.60) are different.
This may cause version compatibility problems.
It is recommended to use SDB server 4.1.8. *
Click to expand...
Click to collapse
1.
sdb.exe once started is Background process...
To close active sdb you can do this:
Code:
sdb kill-server
2.
https://forum.xda-developers.com/showpost.php?p=74585286&postcount=330
Look into this old post...
Try to read:
Code:
Guidelines_on_Connecting_GearS2_device_using_WiFi.pdf
Guidelines_on_Connecting_GearS2_device_using_WiFi_151222.pdf
Ignore Gear S2 text... because this is same shhh... since years...
Mandatory is to find your correct IP.
Hint...
Maybe it helps to try different PCs or Notebooks... sometimes more luck on other device... but only with correct IP in Command...
connecting to 192.168.0.16:26101 ...
failed to connect to 192.168.0.16:26101
Click to expand...
Click to collapse
If these digits are correct...
Command Line looks like this:
Code:
sdb connect 192.168.0.16
Not more not less... NO need to add something behind...
Best Regards

This is driving me crazy guys
Still cannot connect to the watch through wifi yet
I am getting this answer now
* server not running. starting it now on port 26099 *
* server started successfully *
connecting to 192.168.0.16:26101 ...
failed to connect to 192.168.0.16:26101
I am trying on both the older and the newer versions of sdb
Debugging mode is on in my watch
When writing same command again "sdb connect 192.168.0.16" I get weird figures or "error: target offline" in the newest version of sdb
I have even tried to create a private wifi from the computer I use and connect the watch to the same network but it didn't help either.
I am still only trying to connect the watch to the computer through sdb. I haven't done the odin steps yet. I am afraid doing odin steps and not being able to complete the sdb connecty steps !!
I have another question:
Where I live in Sweden. Samsung didn't release a bluetooth version at all. That's why I bought mine from Germany.
If I change my csc to Sweden. Will it work as there is actually no swedish bluetooth SM-R820 !! I mean that mine watch will be probably the only bluetooth r820 with swedish csc !!!! will I get updates as usual? will the watch even work?

@tareqsy91
1.
You have nobody who can help you?
No family... no friends nor neighbar with second/other PC... Notebook?
I am using different PCs with:
Win XP
Win 7
Win 8
Win 8.1
Never tried with sh .tty Win 10...
1.1
Maybe give infos what you use... Windows Version AND 32 bit or 64 bit
2.
Sweden or Germany...
No matter...
F. device work with byteexact Values... Sales Code aka CSC...
2.
Their are few other methods to READ EXACT infos from device... instead talking about blabla Sweden or Germany...
Look at this post... with screenshots...
App which can read these 2 files from Watch:
https://forum.xda-developers.com/showpost.php?p=80072694&postcount=786
Code:
com.somyac.gear.transfer.lite
Best Regards

VOLTE Success, Activation without Firmware Replacement (Sony Mobile withdrawal area)

Hello Xperia users! In the meantime, I finally solved the VOLTE problem! I approached Qualcomm's diagnostic port-active-efsExplorer and solved the problem by inserting a VOLTE profile from my carrier
Sorry, this is Korea and I am Korean.
However, I will write down the method in English.
Unlike previous 1&5, Qualcomm's diagnostic port cannot be opened.
opening command
I don't even know. I don't think so.
So it's a little different from before.
I tried to force it open.
debugging connection
Open the Command Proposal window.
adb shell input
su input
Do you want to allow shell on your phone?
prompt acceptance of permission
Then the $ shape changes to #.
Now
setprop persist.usb.eng 1
Copy paste entry. Please enter
And you're gonna be out there during tethering.
In My Computer Item
View Device Manager.
Please turn debugging back on.
Of course, no access.
If you turn on debugging again,
I've already set it up, so it looks like that.
Among them, there is a product model named XQ-AT52.
There are four yellow exclamation points in total.
Manually update driver Press [port] to list the manufacturers
It's called Qualcomm hs-usb-diagh and 9091. with this
I need a manual update. gogo
Now run the EFS Express.
Press 0 on the ROW and OK.
(ROW or SF_Default)
Oh, it takes a long time. I thought it stopped.
It opens if you stay still. LOL
It's open. How nice to see you here!
I am the Korean telecommunication company EFS file extracted from xperia1.
I used it. If you need VOLTE,
XPERIA1 (Modem).Extract from SIN file
I will use the Korean communication file.
Just drag it and put it in a folder.
v check and Yes
There'll be folders that don't exist while you're pulling them in.
Then make it and put the file in.
In the folder where you can view this red file,
Drag and drop the file twice.
The reason is that once you do it, you just go in.
The red file is not updated.
That's how the numbers at the back change when you renew.
So make sure to put it in twice.
Files beginning with NV do not have folders.
Put it on top.
It's over now!
Volte Success ^0^ About IMS
VOLTE OK
Confirm Video Calls
It was such a hard time for me!
I was sad because I couldn't get help.
With 5G mobile phones in 2020,
It was terrible to be on the 3G phone.
If there's someone like me,
This information will help you a lot.
Finally, Marktu
Buy! Buy two! I love it.

This is great! How do we find VoLTE profile for our carriers?

mehdi_s82 said:
This is great! How do we find VoLTE profile for our carriers?
Click to expand...
Click to collapse
It's hidden in XPERIA1 firmware.
After downloading the firmware via Xperia Pim, change the extension to Modem.img in the Modem.sin file and extract it to the compression program (7z) to view the folder! Surprisingly, the world's telecommunications company VOLTE EFS file is hidden. +_+ Take advantage of it! You can open the VOLTE menu through the magazine module.

Hi, why don't you show by video or pictures. The windowns language is English. ???
Attach the necessary software.
Thanks

I estimate, its only possible by unlocking/rooting the phone?

how to
Even with the great contributors' information, I think there are a few areas where I struggle.
For additional information, I will post my success stories.
I'm posting them in machine translation. Please forgive me if it's hard to read.
STEP 1: Implement the Tools You Need
Please install the following tools.
QPST(QPST_2.7.460)
Qualcomm-hs-usb-diagnostics-9091-952454(DIAG driver)
Flashtool (and XperiaFirm)
newflasher(INSTALL is unnecessary, but please get it.)
*All of the above were available on the internet as of 8/15.
STEP2: Get a "modem" that supports VoLTE.
　As a prerequisite (regardless of the DualSim/SinglSim model)
　　For countries that want to use VoLTE, SONY is offering
　　Official firmware is required.
　　In my example.
　　Purchased model: XQ-AT52 (for Hong Kong)
　　The country where you want to use it: Japan -> SO-51A is available.
　　(The difference in the number of slots in the SIM doesn't affect it. )
　　This is the case.
　　If the firmware to run VoLTE does not exist in the country where you want to use it
　　This method does not work.
　　The annotations are long, but here are the steps.
　　Use XperiFirm, provided by SONY in the country where you want to use VoLTE.
　　　Download the firmware.
　　
STEP3: Use the newflasher to write the firmware from STEP2 to your Xperia 1 ii.
　　　In this case, if you want to burn into a model with a different number of SIM slots
　　　Example: Writing SO-51A firmware to XQ-AT52
　　　→The SIM will not be recognized, but it is temporary.
STEP4: Use EFS Explorer to get the necessary files.
　　Follow the steps of the great htcmage and have your Xperia 1 ii recognized by EFS Explorer.
　　4-1: Install the QPST.
4-2:Install Magisk on your Xperia 1 ii.
　　　　Therefore, it is mandatory to unlock the bootloader.
　　4-3:Execute the commands at the command prompt as follows.
　　　　adb shell
su
setprop persist.usb.eng 1
Magisk's permission is now required to get SuperUser privileges in su.
　　　　　Note: From the Magisk menu, go to "# SuperUser" and click on
　　　　　You can allow.
4-4: The debug mode is disconnected, so you need to re-enable it.
4-5: If you have installed the qualcomm-hs-usb-diagnostics-9091-952454 (DIAG driver), you can use
　　　　It is recognized by EFS Explorer.
4-6: On the Phone Selectio screen, Banner selects the ROW port.
STEP 5: Back up the files required for VoLTE activation.
Before following the steps below, you must have the SIM of the line/carrier you want to enable VoLTE on.
　　　　Please plug in.
　　　I have backed up the following folders.
　　　There may be some things you don't need, but at least it works.
　　　Data_Profiles
efsprofiles
Ims.
nv/item_files/datamodem
nv/item_files/ims
nv/item_files/mcfg
nv/item_files/modem
STEP6: Write the firmware you want to use, and copy the file from STEP5 to
　　　Override.
Follow steps 3 to 4 of STEP 3 to 4 to get the firmware you want to use.
　　　Write & make EFS Explorer recognize it. (Don't remove the SIM.)
　　　Then, overwrite it with the files backed up in STEP 5.
You should probably now have VoLTE available.
Thanks to the person who walked me through the Magisk installation process, and to the great htcmage.
Also, I pray that others wandering in the same sea of information will be saved.

:good:

sura_tth said:
Even with the great contributors' information, I think there are a few areas where I struggle.
For additional information, I will post my success stories.
I'm posting them in machine translation. Please forgive me if it's hard to read.
STEP 1: Implement the Tools You Need
Please install the following tools.
QPST(QPST_2.7.460)
Qualcomm-hs-usb-diagnostics-9091-952454(DIAG driver)
Flashtool (and XperiaFirm)
newflasher(INSTALL is unnecessary, but please get it.)
*All of the above were available on the internet as of 8/15.
STEP2: Get a "modem" that supports VoLTE.
　As a prerequisite (regardless of the DualSim/SinglSim model)
　　For countries that want to use VoLTE, SONY is offering
　　Official firmware is required.
　　In my example.
　　Purchased model: XQ-AT52 (for Hong Kong)
　　The country where you want to use it: Japan -> SO-51A is available.
　　(The difference in the number of slots in the SIM doesn't affect it. )
　　This is the case.
　　If the firmware to run VoLTE does not exist in the country where you want to use it
　　This method does not work.
　　The annotations are long, but here are the steps.
　　Use XperiFirm, provided by SONY in the country where you want to use VoLTE.
　　　Download the firmware.
　　
STEP3: Use the newflasher to write the firmware from STEP2 to your Xperia 1 ii.
　　　In this case, if you want to burn into a model with a different number of SIM slots
　　　Example: Writing SO-51A firmware to XQ-AT52
　　　→The SIM will not be recognized, but it is temporary.
STEP4: Use EFS Explorer to get the necessary files.
　　Follow the steps of the great htcmage and have your Xperia 1 ii recognized by EFS Explorer.
　　4-1: Install the QPST.
4-2:Install Magisk on your Xperia 1 ii.
　　　　Therefore, it is mandatory to unlock the bootloader.
　　4-3:Execute the commands at the command prompt as follows.
　　　　adb shell
su
setprop persist.usb.eng 1
Magisk's permission is now required to get SuperUser privileges in su.
　　　　　Note: From the Magisk menu, go to "# SuperUser" and click on
　　　　　You can allow.
4-4: The debug mode is disconnected, so you need to re-enable it.
4-5: If you have installed the qualcomm-hs-usb-diagnostics-9091-952454 (DIAG driver), you can use
　　　　It is recognized by EFS Explorer.
4-6: On the Phone Selectio screen, Banner selects the ROW port.
STEP 5: Back up the files required for VoLTE activation.
Before following the steps below, you must have the SIM of the line/carrier you want to enable VoLTE on.
　　　　Please plug in.
　　　I have backed up the following folders.
　　　There may be some things you don't need, but at least it works.
　　　Data_Profiles
efsprofiles
Ims.
nv/item_files/datamodem
nv/item_files/ims
nv/item_files/mcfg
nv/item_files/modem
STEP6: Write the firmware you want to use, and copy the file from STEP5 to
　　　Override.
Follow steps 3 to 4 of STEP 3 to 4 to get the firmware you want to use.
　　　Write & make EFS Explorer recognize it. (Don't remove the SIM.)
　　　Then, overwrite it with the files backed up in STEP 5.
You should probably now have VoLTE available.
Thanks to the person who walked me through the Magisk installation process, and to the great htcmage.
Also, I pray that others wandering in the same sea of information will be saved.
Click to expand...
Click to collapse
Hello, you are so cool Thank you so much for organizing the guide. I hope it helps many xperia 1 II users ah! I opened the volte-related menu without changing the firmware using the magical module. The reason is that the buildprop cannot be modified for this xperia1 II
pa// Attached file for used module

Has anyone had success doing this on the Xperia 5 ii ?

htcmage said:
Hello Xperia users! In the meantime, I finally solved the VOLTE problem! I approached Qualcomm's diagnostic port-active-efsExplorer and solved the problem by inserting a VOLTE profile from my carrier
Sorry, this is Korea and I am Korean.
However, I will write down the method in English.
Unlike previous 1&5, Qualcomm's diagnostic port cannot be opened.
opening command
I don't even know. I don't think so.
So it's a little different from before.
I tried to force it open.
debugging connection
Open the Command Proposal window.
adb shell input
su input
Do you want to allow shell on your phone?
prompt acceptance of permission
Then the $ shape changes to #.
Now
setprop persist.usb.eng 1
Copy paste entry. Please enter
And you're gonna be out there during tethering.
In My Computer Item
View Device Manager.
Please turn debugging back on.
Of course, no access.
If you turn on debugging again,
I've already set it up, so it looks like that.
Among them, there is a product model named XQ-AT52.
There are four yellow exclamation points in total.
Manually update driver Press [port] to list the manufacturers
It's called Qualcomm hs-usb-diagh and 9091. with this
I need a manual update. gogo
Now run the EFS Express.
Press 0 on the ROW and OK.
(ROW or SF_Default)
Oh, it takes a long time. I thought it stopped.
It opens if you stay still. LOL
It's open. How nice to see you here!
I am the Korean telecommunication company EFS file extracted from xperia1.
I used it. If you need VOLTE,
XPERIA1 (Modem).Extract from SIN file
I will use the Korean communication file.
Just drag it and put it in a folder.
v check and Yes
There'll be folders that don't exist while you're pulling them in.
Then make it and put the file in.
In the folder where you can view this red file,
Drag and drop the file twice.
The reason is that once you do it, you just go in.
The red file is not updated.
That's how the numbers at the back change when you renew.
So make sure to put it in twice.
Files beginning with NV do not have folders.
Put it on top.
It's over now!
Volte Success ^0^ About IMS
VOLTE OK
Confirm Video Calls
It was such a hard time for me!
I was sad because I couldn't get help.
With 5G mobile phones in 2020,
It was terrible to be on the 3G phone.
If there's someone like me,
This information will help you a lot.
Finally, Marktu
Buy! Buy two! I love it.
Click to expand...
Click to collapse
Do you loose 5g support after this method?
Does your mobile restart after changing the data carrier from Sim1 to Sim2?

R

htcmage said:
Hello, you are so cool Thank you so much for organizing the guide. I hope it helps many xperia 1 II users ah! I opened the volte-related menu without changing the firmware using the magical module. The reason is that the buildprop cannot be modified for this xperia1 II
pa// Attached file for used module
Click to expand...
Click to collapse
I reflash XQ AT 52 or AT 51 to XQ AT 72 (China) it resconized Simcard but no signal. This menthod will work in my case??? Thank you

FantasticBeast007 said:
Do you loose 5g support after this method?
Does your mobile restart after changing the data carrier from Sim1 to Sim2?
Click to expand...
Click to collapse
I have a xperia 1 mobile in India but my mobile not support volte please help me

dangh5 said:
I reflash XQ AT 52 or AT 51 to XQ AT 72 (China) it resconized Simcard but no signal. This menthod will work in my case??? Thank you
Click to expand...
Click to collapse
I have a xperia 1 in India but my mobile not support volte please help me

Xperia_xz3 said:
I have a xperia 1 in India but my mobile not support volte please help me
Click to expand...
Click to collapse
Same problem with me.
Mine is the Xperia 1 III.
Will this work with the 1 III Also?

Xperia_xz3 said:
I have a xperia 1 in India but my mobile not support volte please help me
Click to expand...
Click to collapse
Yes you can use volte jio in india.
Telegram - @lazypanda010

I have the Sony Xperia 1 II AU SOG01 Japanese model. I sim unlocked it, I put in my sim card, I use AT&T in the United States. But I can't make phone calls because the VoLTE toggle doesn't appear in settings. I can use data though. I don't understand this guide, can anyone here help me? Does anyone have experiece with this model?

Jmez6314 said:
I have the Sony Xperia 1 II AU SOG01 Japanese model. I sim unlocked it, I put in my sim card, I use AT&T in the United States. But I can't make phone calls because the VoLTE toggle doesn't appear in settings. I can use data though. I don't understand this guide, can anyone here help me? Does anyone have experiece with this model?
Click to expand...
Click to collapse
Hi! We have the same model, where did you sim unlocked your device?

sura_tth said:
how to
Even with the great contributors' information, I think there are a few areas where I struggle.
For additional information, I will post my success stories.
I'm posting them in machine translation. Please forgive me if it's hard to read.
STEP 1: Implement the Tools You Need
Please install the following tools.
QPST(QPST_2.7.460)
Qualcomm-hs-usb-diagnostics-9091-952454(DIAG driver)
Flashtool (and XperiaFirm)
newflasher(INSTALL is unnecessary, but please get it.)
*All of the above were available on the internet as of 8/15.
STEP2: Get a "modem" that supports VoLTE.
　As a prerequisite (regardless of the DualSim/SinglSim model)
　　For countries that want to use VoLTE, SONY is offering
　　Official firmware is required.
　　In my example.
　　Purchased model: XQ-AT52 (for Hong Kong)
　　The country where you want to use it: Japan -> SO-51A is available.
　　(The difference in the number of slots in the SIM doesn't affect it. )
　　This is the case.
　　If the firmware to run VoLTE does not exist in the country where you want to use it
　　This method does not work.
　　The annotations are long, but here are the steps.
　　Use XperiFirm, provided by SONY in the country where you want to use VoLTE.
　　　Download the firmware.
　　
STEP3: Use the newflasher to write the firmware from STEP2 to your Xperia 1 ii.
　　　In this case, if you want to burn into a model with a different number of SIM slots
　　　Example: Writing SO-51A firmware to XQ-AT52
　　　→The SIM will not be recognized, but it is temporary.
STEP4: Use EFS Explorer to get the necessary files.
　　Follow the steps of the great htcmage and have your Xperia 1 ii recognized by EFS Explorer.
　　4-1: Install the QPST.
4-2:Install Magisk on your Xperia 1 ii.
　　　　Therefore, it is mandatory to unlock the bootloader.
　　4-3:Execute the commands at the command prompt as follows.
　　　　adb shell
su
setprop persist.usb.eng 1
Magisk's permission is now required to get SuperUser privileges in su.
　　　　　Note: From the Magisk menu, go to "# SuperUser" and click on
　　　　　You can allow.
4-4: The debug mode is disconnected, so you need to re-enable it.
4-5: If you have installed the qualcomm-hs-usb-diagnostics-9091-952454 (DIAG driver), you can use
　　　　It is recognized by EFS Explorer.
4-6: On the Phone Selectio screen, Banner selects the ROW port.
STEP 5: Back up the files required for VoLTE activation.
Before following the steps below, you must have the SIM of the line/carrier you want to enable VoLTE on.
　　　　Please plug in.
　　　I have backed up the following folders.
　　　There may be some things you don't need, but at least it works.
　　　Data_Profiles
efsprofiles
Ims.
nv/item_files/datamodem
nv/item_files/ims
nv/item_files/mcfg
nv/item_files/modem
STEP6: Write the firmware you want to use, and copy the file from STEP5 to
　　　Override.
Follow steps 3 to 4 of STEP 3 to 4 to get the firmware you want to use.
　　　Write & make EFS Explorer recognize it. (Don't remove the SIM.)
　　　Then, overwrite it with the files backed up in STEP 5.
You should probably now have VoLTE available.
Thanks to the person who walked me through the Magisk installation process, and to the great htcmage.
Also, I pray that others wandering in the same sea of information will be saved.
Click to expand...
Click to collapse
Hi!
I think i missed something during yoyr great guide . My case is that I'm in Israel, where Sony doesn't provide original firmware, and I use Xperia 5 iii (XQ-BQ52 from UK), So will this guide work?
Thank you

ruchan said:
Hi! We have the same model, where did you sim unlocked your device?
Click to expand...
Click to collapse
I used a software called S1 Unlock Tool. You need to buy a credit from this website: https://networkunlocking.com/shop/sony-xperia-cable-unlock-0-counter-supported/. There is also a link to download the software. Along with unlocking your phone it will also grant you access to unlock your bootloader if you wish to do so. I did this and tried to root my phone but I wasn't successful, it just soft bricked my phone and was stuck in a boot loop. I had to use Xperia Companion to restore my phone. Maybe you can't root the Japanese variants, I'm not sure. I saw on here on another forum that you can root the Xperia 1 II.

[Guide] How to change CSC on A71

Disclaimer: This post is an adaptation of the original one in A51 forum. Thanks!
Warning: Do this at your own risk, I am not responsible for any damage that is caused to your device. This method worked for me and should work for everyone.
Credit to yakapa40 on XDA for the apk. This would be impossible without him!
You must make sure the model numbers are the same for the country you want to change to. To check that go to
https://www.sammobile.com/firmwares/recent/
and type in your device model number. Leave country code blank. The countries that are listed are those that will work on your specific device. DO NOT TRY TO CHANGE TO A DIFFERENT MODEL NUMBER COUNTRY!
MAKE sure device has above 70% battery just to be safe
OK lets start!
Backup all your data on samsung cloud and google
This process will erase all your data
Download samsung drivers
https://www.hardreset.info/download/samsung-drivers/
Check the CSC code you want from
https://forum.xda-developers.com/sho....php?t=2546689 credit to Jasi2169
Important later
Download the firmware you want from sammobile (slow download speed) or
https://samfw.com/ for faster download speeds.
It will be a zip file so use winrar to extract and you should get 5 files that start with
AP (System &Recovery)
BL (Bootloader)
CP (Modem / Radio)
CSC\_ (Country / Region / Operator)
HOME\_CSC (Country / Region / Operator)
DELETE the home file.
Next download Odin.
https://dl2018.sammobile.com/Odin3-v3.14.4.zip
Extract the Odin file and run as administrator.
Add each file to its respective field in Odin.
Now we need to put the phone in download mode to do that go to:
https://www.hardreset.info/devices/s...download-mode/
Keep trying until it works.
Next plug the device in and press start. It should take about 3-4 mins for odin to say PASS.
DO NOT UNPLUG THE PHONE AT ANY POINT EVEN AFTER ODIN SAYS PASS.
Let the phone do its thing and dont worry if it takes too long on the Samsung screen.
You should then be greeted with the welcome screen BUT it may not be the correct language so set it to English.
Set the phone up but dont worry about apps we are going to reset the phone again.
Head over to (APK provided by yakapa40).
https://drive.google.com/file/d/1hU3...ew?usp=sharing.
on your device or PC and download it. Extract and it should be a apk file. Download it with your device.
Allow unknown sources and it should says done and not open (that is normal).
put you device in flight mode/airplane mode.
hold down the home screen and go to themes.
Galaxy themes.
My stuff.
Select mysterious theme(make sure not to click update).
Select try it out.
Go to Settings.
About phone.
Legal information.
Change Carrier or whatever third option is (the one that says android 10).
Choose and install the CSC you want (that 3 letter code) remove sim and it will restart phone.
again, dont worry if its on the Samsung screen for too long.
You should be back on the welcome screen and you are done!!!
Set up the phone and enjoy!!!
Credit to yakapa40 again on XDA for the apk. This would be impossible without him!

Download link is broken

This app will NOT work on firmware with August 2020 (or later) security patch. .
The App was originally discussed in the S20 thread and stopped working for all Samsung models if August update was installed)

is there any easier way for changing CSC?
this one seems so complicated.

*#272*IMEI# for CSC change. No need for any app.

driqbd said:
*#272*IMEI# for CSC change. No need for any app.
Click to expand...
Click to collapse
I have 2 imei numbers when i check which should i use

*#272*IMEI# for CSC change. No need for any app.
it doesn't work, just tried it, nothing happen when typing the code with IMEI

Stock Firmware for Active Watch 2 LTE - Tizen 5.5.01 - Germany - Help needed "please"

Hi Guys,
i want to install the stock firmware from samsung on my active watch 2 LTE, but I cannot find the right Files online.
Can you support me with the right files?
Why...
I tried to flash via Net_Odin to change CSC (to make BP, ECG and so available on my German Watch).
I dont know why, but it failed all the time by using following file:
-COMBINATION-FT40_R825USQU1ASL2.tar
Now I heard that BP and ECG will be available soon in Germany, so a flash to a custom firmware is not needed anymore.
Now the Watch always goe into Boot Mode and thats it.
I can go to the screen were I can acitivate AP mode and WIFI is working fine to connect the watch with my PC and use Net_odin again.
Can you help me, to get my Watch into "standard" Setup again?
Thanks a lot

I´ve read other THread regarding "flashing the active 2 watch".
For now i would do following steps...
1. Change Watch into AP Mode and connect my pc to it.
2. Open netodin and flash 4 files
-AP_R825FXXU1BTI9_usr.tar.md5
-BL_R825FXXU1BTI9_usr.tar.md5
-CP_R825FXXU1BTI9_CL1701429_QB16973615_SIGNED.tar.md5
-CSC_OXA_R825FOXA1BTI9_usr.tar.md5
3. Reboot the watch
4. use to files to activate ECG and BP
-SHM1.1.0.175.mod4.apk
-TPKpusher_v9_BPandECG_31_inside-apk
Am I right?
Thanks a lot.