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I've been having this problem after updating my laptops windows, when I turn it on, it won't go past the asus logo and I can't access to the BIOS either, I disassembled it and disconnected everything leaving only the RAM, the CMOS battery, the FAN, the power cord connector and the screen connector connected to the motherboard, while I was writing this post I realized the battery charging LED blinks 4 times stops and then blinks 4 times again and so on without stopping, this blinking happens regarding the battery being connected or disconnected, is this an error code?

I have done the following: Hard reset Turning it on with and without the HDD Removed the CMOS battery waited about 1 minute Tested another ram stick and tested the original in other laptop and it works

I'm running out of options, if you guys have any recommendations or some troubleshooting steps I can follow i would be greatly thankful, in case you need more information I'll update this thread with what's requested, thanks a lot!

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  • What colour is the blinking?
    – DavidPostill ♦
    Commented Aug 25, 2022 at 18:26
  • The colour is green
    – Álvaro Rodríguez
    Commented Aug 25, 2022 at 19:02
  • Try this "Please turn off the laptop (press and hold the Power button for 15 seconds until the Power light is OFF to force shut down) and remove the AC adapter, then press and hold the Power button for 40 seconds to do Hard reset."
    – DavidPostill ♦
    Commented Aug 25, 2022 at 19:15
  • If nothing helps, take it to a repair-shop.
    – harrymc
    Commented Aug 25, 2022 at 19:20
  • Is there anything similar to a "motherboard-manual" for laptops?
    – Hannu
    Commented Aug 25, 2022 at 19:35

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