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stuck104
What's DOS?
Posts: 2
Registered: ‎03-04-2017
Location: GB
Views: 680
Message 1 of 4

B50-30: my keyboard misses characters

I have a B50-30 and sometimes it doesn't acknowledge keystrokes from my USB keyboard.

 

I have used the keyboard with a laptop and tried a different keyboard with the desktop. the problem is only evident on the desktop regardless of us keyboard (i am using the onscreen keyboard to type this).

 

The USB board will work for a while and then start missing characters, typically vowels (!). I have checked the ease of access options and everything is turned off including filter keys.

 

It is particularly bad at the moment, but might work for days at a time.

 

Mod:  edited Subject line to add system type

Support Specialist
Posts: 2,948
Registered: ‎02-22-2017
Location: GB
Views: 563
Message 2 of 4

Re: B50-30: my keyboard misses characters

Hello Stuck104

Thanks for using the Lenovo forums.

If you have access to one, try to see if you can use another USB keyboard, or try using the existing one in another unit, this would help to rule out the issue with the board itself.

 

Otherwise, if it works, try a static discharge for this, it may help to resolve the issue or at least get rid of any built up static on the motherboard.

(If the battery is internal, please just skip the remove/replace battery steps.)
1. Turn the unit off
2. Remove the battery and the Mains adapter
3. Press and hold the front power button for 30 seconds
4. Replace the battery and the Mains adapter
5. Turn the unit on as normal

Hope this helps, let us know how you get on.


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stuck104
What's DOS?
Posts: 2
Registered: ‎03-04-2017
Location: GB
Views: 559
Message 3 of 4

Re: B50-30: my keyboard misses characters

I had already tried another keyboard and that had the same problem. I did the static discharge thing and the problem has gone, thank you.

jasriv
Paper Tape
Posts: 2
Registered: ‎04-08-2017
Location: PE
Views: 408
Message 4 of 4

Re: B50-30: my keyboard misses characters

hello i have a similar problem maybe you can helpme to fixed it.

i have a b41 and when i plug an USB keyboard only the alphabeth works the numpad doesn´t. 

even i plug an num pad keyboard and this one doesn´t work.

i updated the drivers didn´t work.

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