power button not working
When the power button is pushed it would work intermittently but became harder and harder to get get it to start.
Is this a good question?
Score
0
379878
3 Answers
Chosen Solution
Rep: 448.7k
11
366
1.4k
Hi,
The problem could also be the Power button itself, not making good contact when it is being pressed down.
Unfortunately, the power button is part of the keyboard assembly and its' wiring is in the flex cable connection between the keyboard assembly and the motherboard.
To prove if the button was the problem would involve removing the keyboard. You could then try to prove continuity through the button when it is pressed by using an Ohmmeter to try and locate the wires, at the flex cable connector point, which are connected to the button. Even if you prove that the button is intermittently faulty as it appears that there are no replacement buttons available the keyboard would have to be replaced.
Here is a link to the service manual for your laptop.
https://download.lenovo.com/ibmdl/pub/pc...
Scroll to the bottom of p.60 onward to view the procedure to remove the keyboard assembly.
Here is a link to the parts list for the laptop. Scroll down to find the section on keyboards.
https://download.lenovo.com/parts/ThinkP...
Keyboards are 'country' orientated, e.g. USA, France, Germany etc. Select the keyboard part number suitable to your particular 'country'. The part number should also be stamped on the underside of the keyboard. The term 'Secondary' next to the keyboard entry means that the keyboard is not 'backlit', Primary means that it is backlit.
As an example here are links to 2 suppliers of a USA keyboard, one secondary the other primary. It is not a recommendation to use one or the other (depending on what you need) it is shown to give an idea of the cost of the part. To find other suppliers that may suit you better, simply search online using the part number only to get results.
USA 04x1201 secondary -not backlit
Hopefully this is of some help.
Was this answer helpful?
Score
3
Rep: 10.3k
15
29
6
Could you add more detail of whats going on? There could be many issues. It sounds almost as if your power adapter is not connecting properly and not charging your battery thus resulting in your issue. Try holding the power adapter in and check to see if the light saying its plugged in to a charger is on, make sure that light is on and then try to turn it on.
Hope this helps and good luck fixing!
Was this answer helpful?
Score
0
I have Lenovo Thinkpad T480 (an year old) and this is the 2nd time the power button has given up on me. Power button would keep blinking but won't work, won't shut down or recover from hibernation.
This is what I have tried, and what worked for me.
1. Drain the residual battery - I took the removable battery out, tried to press and hold the power button multiple times for different duration, didn't work. I even put my phone in charging from the USB to drain the power slowly, but it was taking too long. I guess there is a second battery as well inside which is behind the cover and requires screws to be removed and all.
2. Then read a suggestion online to press the tiny emergency reset hole at the bottom of the laptop. When pressed with a small paper clip pin worked in less than 10 seconds.
Thanks,
Micky
Was this answer helpful?
Score
0
@vrdigital You are spamming by putting up a website that does not contribute anything to the problem.
Apologies, happy for this to be deleted. I thought I am contributing to the topic, looks like I posted on the wrong topic.
1 Comment
same problem,,,,
by nazmul