[Samsung Galaxy S23 Ultra] Idebutterpiep:
Big new Galaxy S23 Ultra update with August security patch rolling out!​

The rollout of this update has started in Thailand and Galaxy S23 owners will have to download almost 1.4GB to install the update on their phones.

Newest update brings the August 2023 security patch to the Galaxy S23phones. As for the rest the changelog and device reliability and stability has been improved.

Country	Afghanistan (AFG) Argentina (ARO) Argentina (Claro) (CTI) Argentina (Movistar) (UFN) Argentina (Personal) (PSN) Australia (XSA) Australia (Optus) (OPS) Australia (Telstra) (TEL) Australia (Vodafone) (VAU) Austria (A1) (MOB) Bolivia (BVO) Brazil (ZTO) Brazil (Claro) (ZTA) Brazil (TIM) (ZTM) Brazil (VIVO) (ZVV) Caucasus Countries (CAU) Chile (CRC) Colombia (COL) Colombia (COO) Colombia (Comcel) (COM) Croatia (VIPNET) (VIP) Czech Republic (O2C) (O2C) Dominican Republic (CDR) Ecuador (EBE) Ecuador (ECO) Egypt (EGY) Europe (EUX) Europe (EUY) France (Bouygues) (BOG) France (SFR) (SFR) Guatemala (GTO) Guatemala (PGU) India (INS) Indonesia (XID) Iraq (MID) Ireland (Meteor) (MET) Israel (ILO) Italy (TIM) (TIM) Kazakhstan (SKZ) Kenya (AFR) Kenya (Zain) (DKR) Lebanon (ILP) Malaysia (XME) Mexico (IUS) Mexico (MXO) Mexico (Movistar) (TMM) Mexico (Telcel) (TCE) Morocco (FWD) Morocco (MWD) (MWD) Nepal (NPL) New Zealand (XNZ) Nigeria (ECT) Panama (TPA) Peru (PET) Peru (PEO) Philippines (Globe) (GLB) Philippines (Open Line) (XTC) Poland (PLUS) (PLS) Poland (Play) (PRT) Portugal (MEO) Russia (SER) Saudi Arabia (ACR) Saudi Arabia (KSA) Serbia (Telenor) (MSR) Serbia (VIP) (TOP) Singapore (XSP) Singapore (MM1) Singapore (SingTel) (SIN) Singapore (StarHub) (STH) Slovenia (Mobitel) (MOT) Slovenia (Si.mobil) (SIM) South Africa (XFE) South Africa (XFA) South Africa (Vodafone) (XFV) Sri Lanka (SLK) Switzerland (Swisscom) (SWC) Thailand (THL) Trinidad and Tobago (EON) Tunisia (TUN) Turkey (TUR) Ukraine (Kyivstar) (SEK) United Arab Emirates (XSG) United Arab Emirates (LYS) United Kingdom (BTE) United Kingdom (BTB) United Kingdom (EE) (EVR) Unknown (PKD) Unknown (BKD) Vietnam (XXV)

Thailand (THL)

Afghanistan (AFG)

Argentina (ARO)

Argentina (Claro) (CTI)

Argentina (Movistar) (UFN)

Argentina (Personal) (PSN)

Australia (XSA)

Australia (Optus) (OPS)

Australia (Telstra) (TEL)

Australia (Vodafone) (VAU)

Austria (A1) (MOB)

Bolivia (BVO)

Brazil (ZTO)

Brazil (Claro) (ZTA)

Brazil (TIM) (ZTM)

Brazil (VIVO) (ZVV)

Caucasus Countries (CAU)

Chile (CRC)

Colombia (COL)

Colombia (COO)

Colombia (Comcel) (COM)

Croatia (VIPNET) (VIP)

Czech Republic (O2C) (O2C)

Dominican Republic (CDR)

Ecuador (EBE)

Ecuador (ECO)

Egypt (EGY)

Europe (EUX)

Europe (EUY)

France (Bouygues) (BOG)

France (SFR) (SFR)

Guatemala (GTO)

Guatemala (PGU)

India (INS)

Indonesia (XID)

Iraq (MID)

Ireland (Meteor) (MET)

Israel (ILO)

Italy (TIM) (TIM)

Kazakhstan (SKZ)

Kenya (AFR)

Kenya (Zain) (DKR)

Lebanon (ILP)

Malaysia (XME)

Mexico (IUS)

Mexico (MXO)

Mexico (Movistar) (TMM)

Mexico (Telcel) (TCE)

Morocco (FWD)

Morocco (MWD) (MWD)

Nepal (NPL)

New Zealand (XNZ)

Nigeria (ECT)

Panama (TPA)

Peru (PET)

Peru (PEO)

Philippines (Globe) (GLB)

Philippines (Open Line) (XTC)

Poland (PLUS) (PLS)

Poland (Play) (PRT)

Portugal (MEO)

Russia (SER)

Saudi Arabia (ACR)

Saudi Arabia (KSA)

Serbia (Telenor) (MSR)

Serbia (VIP) (TOP)

Singapore (XSP)

Singapore (MM1)

Singapore (SingTel) (SIN)

Singapore (StarHub) (STH)

Slovenia (Mobitel) (MOT)

Slovenia (Si.mobil) (SIM)

South Africa (XFE)

South Africa (XFA)

South Africa (Vodafone) (XFV)

Sri Lanka (SLK)

Switzerland (Swisscom) (SWC)

Thailand (THL)

Trinidad and Tobago (EON)

Tunisia (TUN)

Turkey (TUR)

Ukraine (Kyivstar) (SEK)

United Arab Emirates (XSG)

United Arab Emirates (LYS)

United Kingdom (BTE)

United Kingdom (BTB)

United Kingdom (EE) (EVR)

Unknown (PKD)

Unknown (BKD)

Vietnam (XXV)

Model	SM-S918B
Product Code	THL
Security Patch	2023-08-01
OS Version	Android 13
PDA	S918BXXU3AWGJ
CSC	S918BOXM3AWGJ
Build Date	2023-07-28
Changelist	27100863

You also can download Thailand update from Samsung firmware and flash on OXM related phones.

I did using Odin over EUX without any problems.