06-03-2015 12:42 PM
Just got my new t450s yesterday. Booted it up today and connected to the internet. Lenovo widget popped up and told me there was an update. It said there was a new bios update. I walked through the UI steps and it installed the new bios and then went to reboot the machine. Machine did not post. Any attempt to power on gets a blank screen and 2 short beeps, pause, 3 short beeps. The Green light on the power button is currently gently pulsing. pressing and holding the power button does nothing. Tried unpluging and replugging both the battery and the AC adaptor and no change. help?
06-05-2015 05:09 AM
06-08-2015 04:44 PM - edited 06-08-2015 06:03 PM
I, too, am having this exact same issue on a T450s that I received just hours ago. Unfortunately, the emergency reset button isn't doing anything in my case; the gentle pulse of the power button persists despite pressing/holding the emergency reset button. I suppose I will have to wait for the internal battery to drain.
What a horrible first impresion...
EDIT: After allowing the internal battery to drain completely, I was able to boot the machine normally. I will hold off, for now, on any BIOS updates.
06-09-2015 02:50 AM
What was you actual BIOS version before the update ?
06-09-2015 04:27 AM
06-09-2015 11:29 AM
I just faced the same issue. My T450s was delivered to me this afternoon. I got it home and plugged it in and was prompted for the BIOS update while I was updating Windows. Went through the UI and the machine did not come up after shutting down for the update. I found this post online and tried to factory reset but did not get a response again. Things were getting crazy and I decided to try and remove the external battery and let it drain down. But I just thought of trying the factory reset after the external battery was removed and it worked!! The machine has booted up and went straight into installing the Windows updates and I found that the BIOS has been successfully updated too. Really weird!
Seems to be running fine now. But a scary way to start off!
06-10-2015 06:11 AM - edited 06-10-2015 08:22 AM
I am investigating reports of T450s laptops upgrading from BIOS v1.12 and v1.13 to 1.14 but then do not boot up, and remain in hibernation mode.
If this happens to your laptop, please press the battery reset button located on the bottom of the laptop. This will allow the laptop to boot up. You may then need to perform the BIOS upgrade again.
To find out more information about the battery reset button, here is a link to the Hardware Maintenance Manual: http://support.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t45...
I will post an update when I have more information.