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John, Engineer and electronic enthusiast for more than 12 years.
Category: Consumer Electronics
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How to fix error 501, HP ProBook Got it reconditioned. Have

Customer Question

How to fix error 501
JA: What's the make/model of your device? How old is it?
Customer: HP ProBook Got it reconditioned. Have had it about 4 years. Not sure of age.
JA: How long has this been going on? What troubleshooting have you tried?
Customer: Today. Got message when I turned it on: "HP BIOS application is corrupt or missing. Please install app and try again"
JA: Anything else you want the electronics expert to know before I connect you?
Customer: No.
Submitted: 3 months ago.
Category: Consumer Electronics
Expert:  Russell H. replied 3 months ago.

Hi, thank you for contacting My name is Russell. I will do my best to provide the right answer to your question.

Does anything appear on the screen of your ProBook, *before* the message about "HP BIOS application" comes up ? this is an important detail.

The HP logo should appear, at least - but, does anything else? before the HP BIOS application message.