[Help] How to manually rollback/reinstall TOS 5 on F4-212 (ARM) from TOS 7 Beta?
Posted: 18 Jul 2026, 23:00
Hello,
I recently upgraded my F4-212 to the TOS 7 Beta (7.0.0500). Since this version does not yet support essential apps like Docker, Jellyfin, Tailscale, and Surveillance Manager on this hardware, I need to downgrade back to TOS 5.
Official support informed me that rolling back is not supported on this specific model. I understand that the F4-212 uses an ARM-based architecture, meaning standard X86 boot recovery or standard USB Initboot methods might not apply out of the box.
Has anyone successfully wiped the system partition or forced a clean reinitialization/flash back to TOS 5 on an ARM-based model like the F2-212 or F4-212? Any guidance, custom scripts, or workarounds from advanced users to get this unit back to TOS 5 would be greatly appreciated.
Thank you!
I recently upgraded my F4-212 to the TOS 7 Beta (7.0.0500). Since this version does not yet support essential apps like Docker, Jellyfin, Tailscale, and Surveillance Manager on this hardware, I need to downgrade back to TOS 5.
Official support informed me that rolling back is not supported on this specific model. I understand that the F4-212 uses an ARM-based architecture, meaning standard X86 boot recovery or standard USB Initboot methods might not apply out of the box.
Has anyone successfully wiped the system partition or forced a clean reinitialization/flash back to TOS 5 on an ARM-based model like the F2-212 or F4-212? Any guidance, custom scripts, or workarounds from advanced users to get this unit back to TOS 5 would be greatly appreciated.
Thank you!