How to warm and cold boot the Motorola mc9000 series handheld mobile computers.
For the MC9090 cold boot, press in the two battery release levers on both sides of the keyboard. The battery will pop out half way. Then press and hold the scan trigger and the red power button for 10 seconds, then push the battery back in from its halfway out position. The MC9090 will power on now by itself and if it does not say “Warm Boot” on the first screen, they you have successfully cold boot the device.