X220 BIOS downgrade
Posted: Wed Jun 13, 2012 8:54 am
Hello,
I have about 1 year old x220 with BIOS from that time. All was working fine, boot time and shut down time were awesome. I did not make note of BIOS version it was running.
Last evening, I checked into System Update and noticed a BIOS update to v1.28 released on 02/14/2012 and installed it. Now I see a much longer boot time and shut down time. Has anyone noticed something similar?
Question:
1. Is there a way to downgrade my BIOS to the previous version?
2. I used the BIOS update utility and it said something like "it will backup the ols BIOS". Where can I find that on my TP?
3. What is the method used to downgrade and is it proven safe (as best as possible when upgrading BIOS)?
TIA for your input. I really am not enjoying these longer boot and shut down cycle.
I have about 1 year old x220 with BIOS from that time. All was working fine, boot time and shut down time were awesome. I did not make note of BIOS version it was running.
Last evening, I checked into System Update and noticed a BIOS update to v1.28 released on 02/14/2012 and installed it. Now I see a much longer boot time and shut down time. Has anyone noticed something similar?
Question:
1. Is there a way to downgrade my BIOS to the previous version?
2. I used the BIOS update utility and it said something like "it will backup the ols BIOS". Where can I find that on my TP?
3. What is the method used to downgrade and is it proven safe (as best as possible when upgrading BIOS)?
TIA for your input. I really am not enjoying these longer boot and shut down cycle.