G977BXXSEHWC1 – Galaxy S10 5G firmware
Build G977BXXSEHWC1 is a security update for the Galaxy S10 5G (SM-G977B)
on Android 12 (One UI 4). It first appeared on Samsung's servers on Apr 6, 2023 (method) and has reached
15 regions so far. It raises the bootloader bit from 13 to 14: once installed, the device no longer accepts firmware with bit 13 or lower, so a downgrade to G977BXXSDHWA4 is blocked. Samsung still serves this file.
- Model
- SM-G977B
- Android
- Android 12
- Type
- Security
- Bootloader bit
- 14
- First released
- Apr 6, 2023
- Regions
- 15
Rollout timeline by region
The date each region code (CSC) first received G977BXXSEHWC1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
AUT | Switzerland | Apr 6, 2023 | day 0 | G977BXXSEHWC1/G977BOXMEHWC1/G977BXXSEHWC1 |
NEE | Nordic countries | Apr 11, 2023 | +5 days | G977BXXSEHWC1/G977BOXMEHWC1/G977BXXSEHWC1 |
OPS | Australia (Optus) | Apr 14, 2023 | +8 days | G977BXXSEHWC1/G977BOXMEHWC1/G977BXXSEHWC1 |
TEL | Australia (Telstra) | Apr 14, 2023 | +8 days | G977BXXSEHWC1/G977BOXMEHWC1/G977BXXSEHWC1 |
O2U | United Kingdom (O2) | Apr 16, 2023 | +10 days | G977BXXSEHWC1/G977BO2UEHWC1/G977BXXSEHWC1 |
SFR | France (SFR) | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BOXJEHWC1/G977BXXSEHWC1 |
BTB | United Kingdom (BT) | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BOBEEHWC1/G977BXXSEHWC1 |
EVR | United Kingdom (EE) | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BOBEEHWC1/G977BXXSEHWC1 |
BTU | United Kingdom | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BOXMEHWC1/G977BXXSEHWC1 |
FTM | France (Orange) | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BOGCEHWC1/G977BXXSEHWC1 |
H3G | Italy (3) | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BH3GEHWC1/G977BXXSEHWC1 |
MOB | Austria (A1) | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BOXMEHWC2/G977BXXSEHWC1 |
ORO | Romania (Orange) | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BOGCEHWC1/G977BXXSEHWC1 |
TIM | Italy (TIM) | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BTIMEHWC1/G977BXXSEHWC1 |
XEU | UK/Ireland | Apr 17, 2023 | +11 days | G977BXXSEHWC1/G977BOXMEHWC1/G977BXXSEHWC1 |
Download and release notes
samloader download -m SM-G977B -r XEU -v G977BXXSEHWC1/G977BOXMEHWC1/G977BXXSEHWC1Samsung's release notes and security patch level for this update: SM-G977B / XEU on doc.samsungmobile.com. What each part of the build number means: decode G977BXXSEHWC1.