Prime does not turn on after crashed update

[Karl-Ludwig Butte]

Dear All,

I tried to update the firmware of my Prime according to instructions. The update failed with error and after removing the USB cabel the calculator turned off and could not be turned on again. All attempts with reset, removing the battery, etc. failed. This sounds a lot like the "Bricked my Prime" thread in the old forum posted by Jerry Petrey on 9 Nov 2013, 6:36 p.m. A first call to the German customer service was rather unsuccessfull - the clerk didn't even know what kind of device an HP-Prime is and could not find any information for a device with the given serial number.

Is there anything else I can try to bring it back to life or is a warranty replacement the only way? In the case of the latter, whome should I contact first: HP customer service or the dealer from whom I bought the Prime?

Every hint will be very much appreciated - thank you very much in advance.

Best regards

Karl