Hp prime - bricked -stuck at the Hp logo

[Matheus Hermes]

(09-01-2018 12:39 PM)Wes Loewer Wrote:  I don't know if it's the same problem, but I recently had similar trouble updating my C unit and I got it to work by turning off "Use new update method" in the Connectivity Kit preferences. I was then able to downgrade to the previous firmware, then upgrade to the new firmware.

I tried to disable the "new update method" but make no difference, the only way I got to downgrade is send the firmware files to "C:\Users\name\Documents\HP Connectivity Kit\Firmware", then run the updater.exe at "C:\Program Files (x86)\HP\HP Connectivity Kit".

I did the downgrade and update to :

firmware 20150617
firmware 20160414
firmware 20160829
firmware 20170710
firmware 20180212
firmware 20180706

It were send 3 files :

Prime_app
Prime_master
Prime_os

Also : I tried to change the "Hp cable" and did the update using other pc with windows 7 32 bits, makes no difference.

My problem starts when I put the calculator to charge at night and in the morning I disconected the cable and the calculator was stuck. Besides that, I found weird that the charger was hot.