01-13-2015 03:33 AM
Hi, I have had the same problem as this person: http://forums.lenovo.com/t5/IdeaPad-Y-U-V-Z-and-P-series/Y50-70-Power-Adapter-not-Supported/td-p/184... . A couple of days ago the problem fixed itself after leaving the PC turned off for a couple of days, but yesterday it got the same issue again.
I would like to add that I have tried restarting, reinstalling Energy Manager, and have checked both the cord, adapter and plug for any damage and measured the voltage, which yielded no answers, since everything seemes alright. What I suspect is a software problem, because when I turn off the PC, close the lid, or put it in sleeping mode, it charges. Perhaps it is caused by a small physical problem, but it seems like the main issue is software, something like a combination of a tiny problem with connecting everything in the plug, and the software checking if everything is connected, and therefore denying it to charge, but cannot check this if the machine is not running.
Hope for answer and thank you in advance
01-13-2015 05:14 AM
Welcome to the Forums.
Just to check, do you have these part numbers on the AC adapter label?
Also, if you uninstall the Lenovo Energy Management (and reboot) or boot the machine in Safe Mode , do you still get the same error message?
If you have a different AC adapter P/N # on the list above then it's likely the cause of the "Adapter is not supported" error.and you may need to contact lenovo on how to go about getting a replacement AC adapter.
01-13-2015 06:17 AM
The adapter is on the list, and I tried uninstalling Energy Manager, and rebooting it in safe mode. The error message does not show up, but that is because Energy Manager is not installed, and it still will not charge
01-13-2015 09:18 AM
Thanks for the info. Have you considered running the machine on a live CD (eg. Ubuntu) to see if the machine charges fine (this is to isolate any OS / driver level issues). Also, is the BIOS version of the PC 9ECN31WW (V1.14)?
If the problem persist on a non-Windows OS then it's likely that the BIOS firmware (which checks for hardware peripherals that connects to the PC) needs to be updated. Since updating the BIOS requires the AC adapter to be plugged-in, I'm afraid you will need to contact lenovo to get this done and also to report your findings.
04-10-2015 10:41 AM