Compaq 1610 Reference Manual page 86

When shipping the handheld PC, follow these guidelines:
Safeguard your data by making a backup copy.
If shipping the backup copy, be sure that the medium
(diskette, tape, or PC Card) is not exposed to electrical or
magnetic impulses while stored or in transit.
Be sure the PC Card slot is empty.
Turn off the device and disconnect all external devices.
Close the device.
Pack the device and all external devices (such as cords and
cables) in their original packing boxes or in similar packaging
with sufficient packing material to protect them.