01-28-2016 05:54 PM
Solved! Go to Solution.
01-28-2016 06:26 PM
03-14-2016 01:46 PM
In response to customer reports of hanging when resuming from sleep mode on T450 and T450s ThinkPads, Lenovo has made a fix available via BIOS update.
This BIOS, v1.21, can be found here: http://support.lenovo.com/us/en/downloads/DS102109
- Fixed an issue related to system unable to power on due to chipset hang in some specific situation.
On the T450 model only, if the system does not power on after resuming from Hibernation mode or from powering off in Battery mode after updating the BIOS to v1.21, please contact Lenovo Service for support and reference Service TIP SF16-T0012/ HT117309. The laptop will need to be serviced.
03-14-2016 06:06 PM
That's what my son did and it is working like a charm now after it was shipped back to him. He has no complaints and was happy with the technical service.
10-23-2016 10:01 AM
I have this exact problem. Given I can't load the BIOS update without booting the laptop, how do I get it out of this hanging state? Is the only answer to take the botom off and take the BIOS back up battery out or is there a key combination that will do it? I'm having to use another PC to send this message, obviously...
10-23-2016 11:53 AM
Have you tried the emergency reset hole on the bottom?
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10-23-2016 12:04 PM
Yes, I have tried the reset button, with and without the main battery fitted. I've held the power button down for more than 10 seconds to as I've read that somewhere. Getting the laptop apart to take the CMOS battery out is a pain so I'm trying to avoid that if possible. Would taking the CMOS battery out actually fix it anyway? Any other ideas?
10-24-2016 07:03 AM
You may have to call technical support for a RMA number and send the laptop back for repair. I followed all the recommendation by tech support and the laptop was still not working.
10-29-2016 10:30 AM
I took it into our local experts in the office and they said it's a well known problem. They took the bottom off (in about 5 mins - took me about 45 mins when I fitted the additional RAM), unplugged the power feed from the BIOS battery, which is roughly in the middle at the front, and waited 30 seconds. Plug it back in again and boot it. Reset clock in the BIOS and I'm back in business. We discussed the BIOS upgrade but they wouldn't load it, convinced it's a waste of time. No advice to stop it happening again, but if it keeps happening I can see me cutting a hole in the bottom lid at the front so I can get at the plug a bit easier! Or fitting a switch....