First, many thanks for all the info in this thread, it's very interesting and I've been following it actively.
I'll tell you about my issue: I bought an S23 (normal model, not Ultra) in Colombia during holidays. I come back to Switzerland and I try to use Samsung Pay but it tells me it's not available in my country.
So I found this (and other) threads, some saying you have to try to change the country, others the CSC, others both.
Concerning the current CSC, I see two different things:
- If I use the dialpad method with *#1234#, in the CSC I see: S911BOWO1AWA6. From my understanding, the CSC is "OWO".
- if I use the Settings > About phone > Software information > Service Provider SW Ver., I get "SAOMC_SM-S911B_OWO_COO_13_0011". And below it says "COO/COO,COO/COO/COO". It seems I am on COO ?
So since many people said that CSC change was not necessary, only change ISO country of the phone, I first tried with usual Alliance Shield but the CountrySelection would not open. So then I used the new Alliance Shield (Reshield) and this time I could open it. I got the window asking for my country, but I had no dropdown and the reboot button was greyed out. I searched for solutions and people said that I should change CSC to be able to change country.
So I tried SamFw tool.
Supported CSCs where listed:
ANC | ARO | BVO | CDR | CGU | CHE | CHL | CHO | CHT | CHX | COB | COL | COM | COO | CRC | CTI | CTP | CTU | DOR | EBE | ECO | EON | GLO | GTO | IUS | MXO | NBS | PEO | PET | PGU | PNT | PSN | PSP | SAM | TCE | TGP | TMM | TPA | UFN | UFU | UPO | UYO | ZTA | ZTM | ZTO | ZVV
There is no EUX or AUT. So I chose custom value with EUX (also I tried AUT after)., I get this:
Running exploit... FAIL
Changing CSC to EUX ... OK
Is it normal that Running exploit... FAIL ? Anyways, it seems it changed the CSC.
But then if I try again the CountrySelection via Reshield, I still don't have any dropdown. And the CSC doesn't seem to have changed, I still see same settings with *#1234# and in the About device...
My finaly goal is just to be able to use Samsung Pay in Switzerland... Can anyone give some help ? Thank you so much