Re: HP6735s "invalid serial number", bios needed



This worked for me after a LOT or searching online. Wanted to document for others. Pre-req: get all your machine info beforehand (S/N, Product # and CT #).

HP Elitebook 8460p, fine for many years but after a power outage it went into "Manufacturing Mode". Got past that but was having the "System Board (00A)" not found errors after that and then Windows wasn't activated anymore. This worked for me:

1- nbdmifit -2.10 above, built out a bootable flash drive...