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Connected an external hard drive to the machine
I'd like to help with the 3F0 error.
Try the steps below-
Step1: Remove and reinsert the hard drive
Step 2: Perform a hard reset
Step 3: Restore BIOS default settings
Step 4 Test the hard drive using HP PC Hardware Diagnostics
For instructions refer to -Boot Device Not Found Error or Hard Drive Not Detected
Hope this helps! Keep me posted.
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