HP Prime Firmware Update Problem

[informach]

Hi!, TaeML:

Try, with ON+Apps+Esc. This procedure, if HP PRIME is off, turn ON. If ON, clean memory.
Too, if you have installed, the connectivity kit, in any device, connect, the HP PRIME and press ON+Apps+Esc.

If nothing happen and you didn't have, warranty ... remove, the battery, for a period, of an hour or, more.
If continued, without run, see ... http://h30434.www3.hp.com/t5/Calculators...-p/5447608

Kinds Regards.
informach.