My ASUS laptop suddenly shut down while I was watching a video in Brave, even though it was connected to the charger. Just before shutting down, Windows showed a low-battery warning. After powering it back on, the system opened directly into the ASUS BIOS instead of Windows.
The BIOS shows the Intel Core i7-12650H, 16 GB of RAM, a 98% battery level, and BIOS version 317, but the storage section says "No Storage Device Present" and the boot priority list is empty.
A service center removed and reseated the NVMe SSD, cleaned the connector, and tested the drive in another computer. It was not detected there either, so the problem appears to be with the SSD itself rather than Windows or the laptop's boot settings.
What could make an SSD suddenly become completely undetectable? Could the charging or power failure have caused it, or might the SSD have already been failing? Is this possibly a controller or firmware problem while the NAND data remains intact? Are there any safe checks left to try before replacing it?
The files on the drive are important, so data recovery is the priority. I do not want to format, initialize, or otherwise damage the drive while troubleshooting.
3 Answers
This sounds consistent with a controller or firmware failure, especially if the SSD has no signs of life in multiple systems. NVMe controllers can be affected by heat, electrical faults, or an interrupted write, and the NAND chips may still contain recoverable data even though the drive no longer enumerates.
Normal recovery software will not help if the operating system cannot see the drive as a block device. For important files, professional hardware-level recovery is the realistic option. It can be expensive, but DIY repairs and repeated power cycles can reduce the chances of recovery.
Have the laptop’s charging system checked separately before installing a replacement SSD. The low-battery warning while the charger was connected suggests there may be a problem with the charger, charging port, battery, or power circuitry. That issue might have caused the SSD failure, or it might simply have happened at the same time.
A sensible order would be to leave the failed SSD powered off, get a recovery assessment if the files justify the cost, have the laptop’s power system diagnosed, and only then install a new drive.
Because the SSD is missing in both the ASUS BIOS and another computer, this is almost certainly a drive-level failure rather than a Windows, bootloader, or BIOS configuration problem. A failed controller, corrupted firmware or mapping data, NAND failure, or an electrical fault can all make an NVMe drive disappear completely. The BIOS screen alone cannot identify which one occurred.
The sudden shutdown may have contributed, but the reverse is also possible—the SSD could have been failing and caused the system problem. Since the data matters, stop repeatedly powering it on and do not format, initialize, secure-erase, or update its firmware. A reputable SSD data-recovery lab is the safest next step. Recovery is not guaranteed, but an undetectable drive does not automatically mean all of the data is gone.
It may be worth verifying the drive is properly seated one final time, but since a service center already reseated it and another computer also failed to detect it, I would not keep experimenting with it.