I update my pcie 750 series ssd's firmware with Intel ssd toolbox. After restart my computer, I can not boot in to windows anymore. I already did some troubleshoot, but nothing helped. The last thing I think I can do is downgrade the firmware.The 750 ssd just dose not showing in the windows, even though it is showing up in the motherboard bios. Is there any more information I can provide to help people troubleshoot? I running win7, asus x99 deluxe motherboard.
I had the same question, and this is answer:
"Regarding the previous version of the firmware, unfortunately there is no way to downgrade it."