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SoldierDev
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Posts: 34
Registered: ‎04-21-2017
Location: ES
Views: 2,684
Message 91 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

My laptop has the same bug, I bought it on Amazon 1 month ago.

The latest BIOS update does not solve the problem.

Has anyone tried to disconnect the battery and reconnect it?

 

This in a small test in this same post:

 

0.0.0.0.0.0.0.0.0.0.0.0.0..0.0.0.0.0.0.0.0.00.0.0.0.0.0

1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1..1.1.1.1.1.1.1.1.1.1.1.1.1.1.1.1

2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2.2..2.2.2.2.2.2.2.2.2.2.2

3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3.3

4.4..4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4.4

5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5.5

6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6.6

7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.7.

8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.8.88.8

9.9.9.99.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9.9

Vioner
SCSI Port
Posts: 44
Registered: ‎03-14-2017
Location: PL
Views: 2,673
Message 92 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

@SoldierDev have you seen my video from previous posts? 

I've proof that battery or charging circuit is the cause of problems. 

You can't trust tests like yours because there is too much room for human error. 

You can try KeyboardTest app by PassMark.

 

The problems dissapear once the battery is disconnected. I haven't tried disconnecting the battery and reconnecting it while laptop is ON with AC Adapter plugged in - and I don't recommend anyone trying this. 

SoldierDev
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Posts: 34
Registered: ‎04-21-2017
Location: ES
Views: 2,648
Message 93 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

Yes, I saw the video.

The test I did is not the best, it's true, but I've done it dozens of times by slowly pressing the key and in all the same thing happens: "0..0", ".11.", Etc.

Regarding the battery, have you tried to connect it again and see if the faults are produced again? With the laptop off, obviously.

If it happens when you reconnect the battery, can you solve it by changing the battery or having nothing to do with it?

Thanks, sorry for any errors, I use a translator.

Vioner
SCSI Port
Posts: 44
Registered: ‎03-14-2017
Location: PL
Views: 2,629
Message 94 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

Of course I tried reconnecting the battery. It's all in the video. Laptop works flawlessly without the battery, but fails with it connected. 

It's still insufficient data to say what specifically is faulty.

 

I don't have a spare original or 3rd party battery to test if changing it helps. 

I provided all the valuable information for the service repair hoping that Lenovo will finally address and fix this issue. The video suggests that they should focus on power management and battery circuits of the laptop. Maybe at least they won't dismiss this issue anymore. 

jotix
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Posts: 24
Registered: ‎04-29-2017
Location: FR
Views: 2,517
Message 95 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

Is it hardware or driver problem?

Vioner
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Posts: 44
Registered: ‎03-14-2017
Location: PL
Views: 2,508
Message 96 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

Read the thread and you won't need to ask questions that already have an answer -.-...

 

It's definitely NOT driver issue. Most likely it's hardware - battery/battery charging circuit/power handling circuit. Less likely it's fixable via a BIOS update, but im 99% sure it's hardware.

Lenovo requested from me to contact the service repair regarding the repair. 

BTW they didn't notify me about the repair status change ... FFS... I checked status online and was surprised. Fortunately, I checked it now and not one week later...

We have national holidays here in Poland now so can't contact the repair center, but I'll let you guys know once I know something more.

jotix
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Posts: 24
Registered: ‎04-29-2017
Location: FR
Views: 2,503
Message 97 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

Thanks @vioner

 

All models have this problem?

 

I've tried 2 models, and both have the same problem.

jotix
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Posts: 24
Registered: ‎04-29-2017
Location: FR
Views: 2,502
Message 98 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

And how do you disconnect the battery?

dikenc
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Posts: 18
Registered: ‎11-05-2016
Location: RU
Views: 2,461
Message 99 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

IMG_2633.JPG

 

 

jotix
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Posts: 24
Registered: ‎04-29-2017
Location: FR
Views: 2,407
Message 100 of 400

Re: ideapad 700 15ISK - Keyboard missing keystrokes

I can't ...

 

The cables are completely glued

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