Hi @buenavista62,
Just recapping.
The keyboard works when on AC only but not when on AC with the battery in, is this correct?
Also with the battery plugged in, the laptop starts straight away as soon as you plug in the AC adapter but it needs the Power button to be operated to start when the AC adapter is not plugged in, is this correct?
Try resetting the BIOS to default values in case the BIOS is corrupted somehow and check the result.
Not sure given what you said, but it may depend on whether you have the battery connected or not, at the time as how to do this.
If the battery is not already connected, turn off the laptop if it is on and when it has completely shutdown disconnect the AC adapter from the laptop. Press and hold the Power button for 30 seconds to dissipate any residual power from the motherboard and then release the button.
Reconnect the battery and then reconnect the AC adapter to the laptop. Hopefully the laptop won't turn on automatically and will only show that it is charging. If this is the situation, then be patient and allow the battery to fully charge before attempting to turn on the laptop in the normal way. If it turns on as soon as you connect the adapter see below.
If the battery is already connected or if it turns on straight away again, (see above) turn off the laptop and when it has completely shutdown remove the AC adapter and disconnect the battery from the motherboard. Reconnect the AC adapter only and then start the laptop by pressing the Novo key and selecting the BIOS option. When in BIOS usually there is a key that is pressed to load the BIOS to default values. Press that, save the changes and exit BIOS and shutdown the laptop. When it has completely shutdown disconnect the AC adapter and reinsert the battery. Try to start the laptop on the battery only and check what happens.
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Hi @buenavista62 ,
Did you disconnect the battery from the systemboard before doing any further work in the laptop?
jayeff 의
Hi @jayeff,
I may have took the wifi-card out before disconnecting the battery, I am not sure.
Could the battery be permanently damaged?
Sercan Ates 의
did you check with another charger if it is working
SHIHAM IFTHIKAR 의
Hi @buenavista62 ,
It's not the battery I was thinking of.
Even though a laptop is switched off there is always power at different points on the motherboard.
The Power button is not a power isolating button. When it is pressed, it just provides an earth to components on the motherboard that have power supplied to them all the time.
When working or repairing in laptops (and any electronic equipment) the rule is disconnect the power as soon as you can access it before doing anything else, unless you need power for testing purposes. "Power off first - on last"
Essentially the laptop is in a very low power state when it is switched off but there is still power there on the motherboard.
What I was hoping was that when you said the you had trouble removing a screw that you didn't accidentally slip with any tools and touch components on the motherboard that "may" have had power connected to them and caused electrical problems, because the battery may still have been connected. It has been known to happen
Slipping with tools and causing mechanical damage to components is one thing and is usually obvious but electrical damage can be invisible.
I'm not trying to frighten you I was just asking so that it may be a consideration when trying to think of how to solve the problem, as the LED light error code that you described is not in the hardware manual for the laptop.
Did you mean amber light instead of red?
If so this indicates that the battery is charging as it is low, but since you said that it was OK before and it doesn't start with the battery connected then either the system is not "seeing" the battery for some reason or cannot charge it.
Did you try leaving it connected to the charger for a while just to see if the lights changed?
jayeff 의
@jayeff yes, amber light. Sry for that.
If battery is plugged: as soon as I connect the laptop with the AC cable, the keyboard lights go on and the laptop tries to start up. After a while a blue screen appears with an error message: driver power state failure.
Then it reboots and I get a "novo button Menu" with 4 options (normal startup, BIOS setup, Boot menu, System recovery)
But somehow my keyboard doesn't work in this situation
Sercan Ates 의
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