After I got my Zaurus back from Sharp Repair I noticed that when I place it in its cradle, quite often the orange battery light will start flashing and I have to remove and replace it to stop it doing that. Sometimes I have to do this more than once. It never used to do this. They flashed it with ROM 3.13. The device seems to work fine otherwise. Would this occur if they had subtly damaged the serial connector or could this be a software problem due to the new ROM version?