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**Device:** TerraMaster F4-425 Plus
**TOS version:** 7.0.0804
**USB Copy version:** 2.1.200 (latest available)

**Problem:**
After upgrading to TOS 7.0.0804, my external USB hard drive (4TB, NTFS) is no longer automatically mounted. This was working correctly on the previous TOS version.

**Symptoms:**
- Storage Manager > USB Device shows the drive as **NTFS/Unmounted** with the mount button greyed out
- File Manager shows nothing under External Storage
- USB Copy shows **"No valid data"** when creating a new backup task — no destination device available

**What I tried:**
- Disconnecting and reconnecting the USB drive
- Trying different USB ports
- Rebooting the NAS with the drive connected
- SSH mount via ntfs-3g — the drive mounts successfully at kernel level (`/dev/sdd1`) but TOS File Manager and Storage Manager still do not recognize it
- `systemctl` and `udevadm` via SSH — Permission denied even for Super User
**Kernel detection:**
The drive IS visible via `lsusb` (JMicron USB to ATA/ATAPI Bridge, ID 152d:0578) and `fdisk -l` — so this is not a hardware issue but a TOS 7 daemon regression.
I also upgraded USB Copy to the latest available version (2.1.200) as part of troubleshooting — the issue persists.

Has anyone else experienced this? Any workaround would be appreciated.

We apologize for the trouble this update has caused you.

This has been confirmed as a bug in 7.0.0804. Please wait for an update to the Storage Manager app.
If you can't wait, we have provided you with a beta version (v1.0.062) via forum private message, which you may install manually.

Thanks a lot

can you please also send me a link to Storage Manager app v1.0.062

I have the same issue. Can you please share with me the Storage Manager app v1.0.062?

ruzaj wrote: ↑31 Jul 2026, 20:05

dplegue wrote: ↑31 Jul 2026, 21:50

It has been sent via forum private message. Please check your inbox.