What should I do if a TS-435XeU cannot boot (single beep) with Samsung 990 Plus 2TB NVMe
Last modified date:
2026-08-06
Applicable Products
- NAS: TS-435XeU
- NVMe SSD: Samsung 990 Plus 2TB
Applied Firmware
- NAS: QTS (depending on actual deployment)
- SSD firmware compatibility key point: when the installed SSD firmware is newer than the firmware version listed in the official compatibility list (for example, installed 2B2QKXG7 vs listed 1B2QKXG7)
Scenario
After the user installs one or two Samsung 990 Plus 2TB NVMe drives in a TS-435XeU, the NAS may fail to boot and only emit one beep. In the referenced case, the drive firmware was newer than the version shown in the official compatibility list, and Samsung tools did not provide a firmware downgrade path.
Please contact QNAP Customer Support directly for assistance.
Solution
Recommended Handling Flow
- Record your environment details:
- NAS model (for example, TS-435XeU)
- SSD model/capacity (for example, Samsung 990 Plus 2TB)
- SSD firmware version (for example, 2B2QKXG7)
- Cross-check the firmware version listed for this SSD in the official compatibility list (for example, 1B2QKXG7).
- If your case matches this FAQ, contact QNAP Customer Support and provide all collected details.
- Before receiving support guidance, avoid repeated insert/remove cycles or repeated risky trial actions.
Temporary Alternative Directions
- If you have another SSD known to boot normally, use it temporarily to bring the system online and perform urgent operations.
- If service restoration is urgent, remove the suspected incompatible SSD first and verify whether the NAS can boot.
Để được hỗ trợ thêm, hãy hỏi những người dùng khác và chuyên gia QNAP trong cộng đồng. Đến Cộng đồng QNAP
