A recent BIOS update from HP appears to be causing problems with ProBooks. HP users report on the manufacturer's forum that their notebooks sometimes refuse to boot after they tried to install the update. HP confirmed the problems to Tom's Hardware.
The BIOS update in question was released on May 26 for a selection of HP Probook models, affected users report on the HP forum. That update is BIOS version 1.17, which HP sent to users via Windows Update and HP's Support Assistant software, among other things. The update was marked as mandatory.
Laptops that are affected in any case are a number of ProBooks: specifically the x360 435 G7, 445 G7 and 455 G7, and a number of EliteBooks: the 835 G7, 845 G7 and 855 G7. HP has since withdrawn the update and is offering version 1.16A as the latest version for those models.
Users who tried to install the update report that their notebooks no longer boot and do not display any image. This makes it impossible to roll back the update and install a different version. The user who first reported the problem has investigated the problem. He states on HP's support forum that the file that is written to the biochip during the update is larger than the storage capacity of the chip. It appears that the update delivers an incorrect or corrupt file.
HP confirmed the problem to Tom's Hardware. The company states that it is investigating the problem and advises affected users to contact customer service. It is not known whether the company will also help users whose laptops are outside the warranty period.
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