My A715-72G laptop LED flashes blue and not turning on.

Dylan27
Dylan27 Member Posts: 5

Tinkerer

edited July 2024 in Aspire Laptops
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Hi everyone, my laptop A715-72G is working normally yesterday, but in this morning when I press the power button, the left LED indicator is blue for 3-4 seconds then turn off automatically. I can't turn it on. What happened and what should I do ?

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[Edited the thread to add issue detail to the title]

Answers

  • Puraw
    Puraw ACE, Member Posts: 16,566 Trailblazer
    Power LED.jpg

    The laptop fails to boot, possibly a dead battery (2019) or power adapter failure. There is a pinhole in the back at the right edge in the middle, stick a pin in that hole and press gently till you feel a click, keep pressing 2-3 seconds then release and try to boot. If that did not fix the booting, try this: Power drain + CMOS reset: Open the back of the laptop and disconnect the battery cable from the motherboard. Locate the CMOS module under the battery (with 2 twisted wires Red and Black) and remove the coin battery. Shorten the +/- contacts (terminals) inside the CMOS capsule for 2 seconds with a bended paperclip and put the coin battery back with the + sign facing up, close the CMOS capsule. Unseat the 2 RAM modules and firmly secure again. Next, press the Power Button on the keyboard for 10-15 seconds after that reconnect the battery cable to the motherboard. Close the laptop, plug-in the adapter and try to boot.

  • Dylan27
    Dylan27 Member Posts: 5

    Tinkerer

    edited July 2024

    I have tried all solutions above, still not working. Charger is 19.5V out and battery is 15.6V out seem like no any problems.

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  • Dylan27
    Dylan27 Member Posts: 5

    Tinkerer

    edited July 2024

    I also tried to boot it without power button, by shorten pin 1 & 2 in 28-pin keyboard terminal and nothing was changed, so that is not keyboard faulty.

  • Dylan27
    Dylan27 Member Posts: 5

    Tinkerer

    [Update Jul 15th, 2024]

    After replacing the 2 faulty fans (not completely dead), I was able to turn my laptop back on as if nothing had ever happened.

    Thanks for your support.

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