Samsung Galaxy Watch7 (SM-L310) Firmware Overview
What is the latest SM-L310 firmware?
L310XXS2BZF4, released July 6, 2026 with Android 16. It is a security update on bootloader binary 2. The archive holds 31 official builds across 22 regions (CSC).
Is the Samsung Galaxy Watch7 still getting updates?
Yes. The newest build is from July 2026, and 21 of 22 regions already have a build from that month; the rest usually follow within a few weeks.
Can I downgrade the SM-L310 firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 2:
- Binary 2 — since Feb 2026
All SM-L310 firmware builds
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
L310XXS2BZF4
Security update
|
2 | DKR | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | UYO | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | SEE | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | BVO | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | UPO | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | XFA | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | XSK | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | PEO | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | TPH | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | COO | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | AFR | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | XEZ | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | ACR | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | XSA | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | TTT | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | XAA | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | BTU | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | ZTO | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | LUX | 16 |
2026-07-06 | Download |
|
L310XXS2BZF4
Security update
|
2 | MWD | 16 |
2026-07-06 | Download |
|
L310ZCS2BZF4
Security update
|
2 | CHC | 16 |
2026-07-06 | Download |
|
L310ZCS2BZE1
Security update
|
2 | CHC | 16 |
2026-06-10 | Download |
|
L310XXS2BZE1
Security update
|
2 | ZTO | 16 |
2026-06-08 | Download |
|
L310XXS2BZE1
Security update
|
2 | DBT | 16 |
2026-06-08 | Download |
|
L310XXS2BZE1
Security update
|
2 | LUX | 16 |
2026-06-08 | Download |
|
L310XXS2BZE1
Security update
|
2 | MWD | 16 |
2026-06-08 | Download |
|
L310ZCU2BZC1
Feature update
|
2 | CHC | — |
N/A | Download |
|
L310XXU2BZB1
Feature update
|
2 | LUX | — |
N/A | Download |
|
L310XXU2BZB1
Feature update
|
2 | MWD | — |
N/A | Download |
|
L310XXU2BZB1
Feature update
|
2 | ZTO | — |
N/A | Download |
|
L310XXU2BZB1
Feature update
|
2 | DBT | — |
N/A | Download |
Latest SM-L310 Firmware by Region
The newest build for each region (CSC) code. Not sure which region your phone uses? See the CSC code guide.
| Region | Latest build | Bit | Android | Date |
|---|---|---|---|---|
| ACR | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| AFR | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| BTU | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| BVO | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| CHC | L310ZCS2BZF4 | 2 | 16 | 2026-07-06 |
| COO | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| DBT | L310XXS2BZE1 | 2 | 16 | 2026-06-08 |
| DKR | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| LUX | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| MWD | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| PEO | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| SEE | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| TPH | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| TTT | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| UPO | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| UYO | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| XAA | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| XEZ | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| XFA | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| XSA | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| XSK | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
| ZTO | L310XXS2BZF4 | 2 | 16 | 2026-07-06 |
How to Flash SM-L310 Firmware
Put the Samsung Galaxy Watch7 into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 2 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.