Samsung Galaxy Z Fold4 (SM-F936B) Firmware Overview
What is the latest SM-F936B firmware?
F936BXXSCIZH3, released August 20, 2026 for region ZTO with Android 16. It is a security update on bootloader binary 12. The archive holds 4 official builds for this region.
Is the Samsung Galaxy Z Fold4 still getting updates?
Yes. The newest build is from August 2026.
Can I downgrade the SM-F936B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 12:
- Binary 12 — since May 2026
SM-F936B firmware for region ZTO
How to Flash SM-F936B Firmware
Put the Samsung Galaxy Z Fold4 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 12 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.