ASUS ExpertBook B1402CGA Displays "No Bootable Device" Error

Incorrect BIOS settings may prevent the laptop from detecting storage devices. Restart the laptop and enter the BIOS setup. Press F2 during startup if supported by your model. Check whether the SSD appears in the storage information. Verify the correct boot device is selected. Avoid changing unfamiliar storage settings without checking ASUS documentation.

Windows may not recognize an SSD with incorrect partition settings. Right-click the Start button and select Disk Management. Check whether the SSD appears in the available drives. Look for missing drive letters or partition problems. Assign a drive letter if the existing partition is healthy. Avoid formatting drives containing important files.

A loose SSD connection may prevent proper communication with the motherboard. Shut down the laptop and disconnect its power adapter. Follow the ASUS ExpertBook B1402CGA Lower Case Removal Guide. Disconnect the internal battery according to ASUS service instructions. Carefully inspect the SSD connection for looseness or damage. Reseat the SSD if necessary. Reassemble the laptop and check whether the SSD appears.

A damaged SSD may prevent Windows from accessing stored information. Check whether the SSD appears in BIOS. Verify its connection before assuming the drive has failed. Back up important files if the drive remains accessible. Replace the SSD if testing confirms a hardware failure. Follow the ASUS ExpertBook B1402CGA SSD Replacement Guide.