[Help] F4-423 Boot Failed
Posted: 20 Oct 2025, 02:51
Hello
,
I’m having serious issues with my TerraMaster F4-423 NAS. Here’s the situation:
My NAS was running TOS 5.1. One of the drives in my RAID degraded, so I replaced it. Unfortunately, I couldn’t rebuild or restore the RAID successfully.
I tried performing a factory reset, but it didn’t help. I am unable to create new volumes or use the system properly.
Then, I attempted to upgrade to TOS 6. After the upgrade, the NAS partially boots, but nothing loads. The system is basically unusable.
I also tried using the USB bootloader (USB_Initboot_UEFI-229), but it only works about 1 in 10 attempts. In the rare case it boots, I tried resetting again, but the NAS still doesn’t function properly.
At this point, I’m completely stuck and don’t know what to do next. Any help or advice would be greatly appreciated.
Thank you.
I’m having serious issues with my TerraMaster F4-423 NAS. Here’s the situation:
My NAS was running TOS 5.1. One of the drives in my RAID degraded, so I replaced it. Unfortunately, I couldn’t rebuild or restore the RAID successfully.
I tried performing a factory reset, but it didn’t help. I am unable to create new volumes or use the system properly.
Then, I attempted to upgrade to TOS 6. After the upgrade, the NAS partially boots, but nothing loads. The system is basically unusable.
I also tried using the USB bootloader (USB_Initboot_UEFI-229), but it only works about 1 in 10 attempts. In the rare case it boots, I tried resetting again, but the NAS still doesn’t function properly.
At this point, I’m completely stuck and don’t know what to do next. Any help or advice would be greatly appreciated.
Thank you.