The Palm Z22 is, I have found out, a bullet-proof design in regards to reliably keeping your valuable "DATA" safe over time. The Engineers at PALM really did a good job of Data integrity compared to many other devices. HOWEVER -- there are 3 common problems with the growing AGE of the Z22, 2 are with the dying batteries, and 1 with the years of wear and tear on the touch screen. The battery is a typical square, thin, modern Lithium battery, wired in with two wires ( + positive, red, and - negative, black ) that can be
taken out and replaced if you take the unit apart. In a brand new, in-the-box package, the battery is dying simply from old age. If the Z22 was used heavily, the constant cycling from dead to fully charged wears out the battery even more. The Touchscreen is a thin layer of plastic stretched over a sheet of glass, with a tiny air gap in between. Over time, the top plastic layer deforms - with hot and cold, air pressure changes, and being pressed by wearing the unit in a pocket, purse, briefcase, or even in a drawer with pencils, pens, and staplers etc. It is very important to have a hard cover over the screen! Other than just having the battery loose its weak charge continually, there is a problem with the unit getting into a state of BLACK SCREEN - it does not charge and remains "apparently" dead, since the logic circuits are in an invalid state, and it can only be reset if the battery dies COMPLETELY to remove the power on the logic circuits.
I have covered the topics of the battery problems, the data problems, the screen problems, and the disassembly, maintenance, and security, and how to get data off the unit, particularly to the new Windows Operating Systems that were developed AFTER the Z22 was no longer made. This is at
I have ripped apart the Z22 repeatedly, and posted pictures of the various steps to service these units. There are links to aftermarket software to transfer data, and examples of how to USE the Z22, for valid purposes. This should be a one-stop source for any information or troublehooting the Z22, for those who have the Z22 and want to keep it operating!
robin dusty graves
Z22 PALM PILOT