Important - Reupdate your unit!

[Joe Horn]

(07-01-2014 02:52 AM)orcinus Wrote:  In any case, i'm getting the exact same symptom as Alex - update failed, now only works on external power. The first attempt at update failed at about 1/3, then i got stuck on x^2+y^2 screen. Rebooting in recovery mode and retrying update resulted in another failed update (this time at about 3/4 in) and a calculator that boots, but only works on USB power.

You didn't mention which method you used for performing the update. If you haven't tried the "emergency procedure" suggested above, try it: paperclip the Prime while holding down the Symb key until it goes into update mode, and then run the updater.exe program (NOT the Connectivity Kit itself!) directly from the Connectivity Kit's installation folder. If that doesn't work, try other USB ports.

Also, are you sure that you don't have the wrong update file that was accidentally uploaded by HP? It had a battery drain problem. It was soon replaced by HP with the correct version here: ftp://ftp.hp.com/pub/calculators/Prime