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‎06-19-2026 02:17 AM

HP Recommended

Hi Community,

I recently acquired a Prodesk 400 G7 desktop. It came without HD so I installeda new nvme and, after reinstalling windows 11, an update started and due a power problem, system turned off while updating.

After recovering power PC did not boot after removing all peripherals and resetting CMOS, I get a beep/led code. 2 red/long beeps and 2 white/short beeps (BIOS corruption signal).

Looking around HP support page I came across a way to fix this, but it did not seems to work, I only get an black and white HP logo on screen while if booting with a USB thumbdrive connected or the beep code if no storage is attached.
Could you please help?

(Excuse my English, as I am not a native speaker)

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