HP iPAQ h5400 Series Reference Manual page 229

Using the Universal Remote
7. Select specific device and device ID. The procedure varies
depending upon the setup method selected in step 5.
For this example, we are selecting our device by Brand. Tap
the Brand down arrow and select your brand.
8. Tap the Power icon to test whether you can power on and off
your device. If not, choose another code from the Selection
list and repeat step 8.
9. Tap Next.
10–6 Reference Guide