Photo: File:Samsung Galaxy Z Fold 6.jpg · Miyako Fujimiya · CC0 · via Wikimedia Commons

Samsung Galaxy Z Fold 6 (SM-F956B)

• Brand: Samsung
• Model: SM-F956B (Galaxy Z Fold 6)
• Android version: 16 (One UI 8.5)
• Kernel: 6.1.x (6.1.145 on current firmware)
• SoC: Snapdragon 8 Gen 3 (SM8650)
• Bootloader: locked — One UI 8 builds ship without the OEM-unlock toggle
• Root status: temp root (per-boot) — KernelSU-Next

Root methods (what works)

• Temp root: local kernel exploit (per-boot; su daemon survives until reboot). Verified on F956BXXS4DZI1.
• Persistent root: none public yet — bootloader unlock required first.

Unlock notes

• One UI 8 removed the OEM-unlock option entirely on bit-4 builds.
• The device's unlock flag was proven to already be set — the bit-4 abl simply ignores it. No software state unlocks this device; work continues on the boot chain.

Gotchas

• Do not take firmware updates that patch the local-exploit primitive — keep OTA agents disabled.
• Knox trips the moment anything custom runs.
• Bit-downgrade flashing is refused by the device (SW REV CHECK FAIL).

Sources

• XDA research thread: "SM-F956B (Z Fold 6) Bit-4: OEM-Unlock Flag Ignored by Bootloader"
• Reddit: r/SamsungZFold6 research posts

Submitted by

Unbolt Inc. (verified on our own device)

• Photo credit: photo: File:Samsung Galaxy Z Fold 6.jpg · Miyako Fujimiya · CC0 · via Wikimedia Commons