• Asus VivoBook X540YA can't switch on

It is currently 6 April 2025, 17:47

 [SOLVED] Asus VivoBook X540YA can't switch on

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  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
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#1 Asus VivoBook X540YA can't switch on

by cygron • 12 September 2024, 17:37
Model : Asus Vivobook X540YA Rev 3.0
Board id : DAXKAFMB6E0 Rev: E

Laptop can't switch on and found strange condition. When i remove BIOS ic and solder it back, laptop is running well. But turn it off about 30 mintues, it can't switch on again. Remove and replace bios again and it's running again. But i turn it of and after a few minutes it can't switch on again. BIOS ic is ok. BIOS firmware is ok. I already try to flash bios and also tried to replace new ic. But nothing change. Need help.

Re: Asus VivoBook X540YA can't switch on

by Google Adsense [BOT] • 12 September 2024, 17:37

#2 Re: Asus VivoBook X540YA can't switch on

by tekort • 16 September 2024, 11:55
Is power button working correctly? Also on this platform there is a screw that needs to be screwed if You want the battery charge etc.

Image

#3 Re: Asus VivoBook X540YA can't switch on

by cygron • 24 September 2024, 14:52
There is no fault in power key. I used to switch on laptop form mb test point. Keyboard power button is also ok. The screw is also ok. I already know this screw for battery charge. May be some steps of power sequence is problem and i don't know how to trace this power sequence. Only boardview is avaliable and can't find schematic.

#4 Re: Asus VivoBook X540YA can't switch on

by tekort • 24 September 2024, 15:20
How You confirmed the power button is working? Check the documentation of KBC chip and make sure that when You press the power button, this pin is reacting (3,3V > 0V). You did not mention the type of KBC chip on this platform, so I cannot exactly tell You where to measure.

#5 Re: Asus VivoBook X540YA can't switch on

by matic • 24 September 2024, 20:16
cygron wrote:When i remove BIOS ic and solder it back, laptop is running well.
Try just to heat up the BIOS chip with a hot air gun to about 150°C, wait until the chip cools down and then check if that also revives the machine.

#6 Re: Asus VivoBook X540YA can't switch on

by cygron • 9 November 2024, 06:25
I found cracking solder point on some resitors and resolder it. Now problem is solved. Laptop is running well. Thanks for your helping. Best regards.

Re: Asus VivoBook X540YA can't switch on

by Google Adsense [BOT] • 9 November 2024, 06:25
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