My notebook (Pavilion - 15-bc200nt) has a 1 TB sata for files and 256 GB PCIe NVMe M.2 SSD for operating system. Yesterday my notebook would not boot capslock blinked 5 slow + 4 fast blinks and it would say there is no bootable drive ( 3F0). And the F keys were very slow.
I first thought there was a problem with bios so I upgraded the bios to the last version. I also enabled legacy support etc... But no luck.
I also ran HP diagnostics tool. Although it recognized the 1 TB drive, and said there were no errors, the 256 GB ssd would not show up in the diagnostics. Interestingly it shows up in bios.
So I decided the problem was with the SSD and decided to format the notebook. I created a USB backup (UEFI) disk from HP cloud backup. Plugged it in, but the loading Icon was in an endless loop after a few hours it gave a blue screen error (DPC_WATCHDOG_VIOLATION) which was also related with the ssd. To check if this was indeed caused by the SSD, I removed it, leaving only the 1TB sata drive, and within seconds the windows recovery menu appeared.
I also tried the connecting the SSd to another PC, the PC stuck on boot. So the problem is definitely with the 256 GB ssd.
So I need to replace it with a new one. But I could not find any info about the supported drives. I searched around for answers, they were referring to the Maintenance and Service Guide but the link is dead (http://h10032.www1.hp.com/ctg/Manual/c05955459)
I know the current drive is Samsung PM961 M.2 256GB ( MZVLW256HEHP-00000) With Host Controller Interface NVMe 1.1. which is an old model, and difficult to find. The ones avaible in my country are the newer models. Most of them are NVMe 1.2. or 1.3. Would that be a problem? While I am at it - Can I upgrade it to 500 or 512 GB, or is there no support for this ( I will continue to use it as a 1TB Sata + 512 GB M.2 SSD.
Another question is, as I will completely reinstall everything, how can I recover my Windows Key? Is it written somewhere?
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