My Asus laptop won’t power on/boot up at all after shutting it down

"Hi @ericz1025 ,

@acervasio was talking about the CMOS battery not the main battery.

Here’s a link to a video that shows how to dis-assemble the laptop.

Here’s an image taken from the video that shows where the CMOS battery is and what it looks like.

After dis-assembling the laptop to a point where you can get to the CMOS battery (ensure that the main battery is also disconnected), disconnect the CMOS battery from the motherboard and then press and hold the Power button for 30 seconds to ensure that all residual power is drained from the motherboard and that the BIOS will be reset to its’ default settings.

Reconnect the CMOS battery and then re-assemble the laptop and check if the laptop now turns on.

(click on image to enlarge for better viewing)

If it still won’t start after this you may have a motherboard problem"

This may be a long shot but I would try removing the cmos battery and letting the laptop sit for ~30 seconds, then put it back in. If that doesn’t work, try re-seating ram sticks one by one to see if one is at fault.

"Hi @ultra_violet

It could be that the CMOS battery is failing and that the BIOS is being corrupted preventing a normal start. When the main battery is flat the BIOS may reset back to its’ default settings as there is no longer any power on the motherboard and this allows for a normal start the next time but then maybe not after that.

I would check the CMOS battery first to make sure that it is OK. It is a non rechargeable Lithium coin cell battery that should last from 4-5 years but maybe not. Usually it is a CR2032 type battery (the type number is printed on the battery) which should measure 3.0V DC. If it measures <2.6V DC replace it. It is a common battery, available most everywhere.

Unfortunately, you have to remove the motherboard from the laptop to access the CMOS battery.

Here’s a video that shows how to disassemble the laptop to remove the motherboard.

Here’s an image taken from the video that shows where the CMOS battery is located on the underside of the motherboard. When removing the battery take note of the orientation of the battery for when you go to reinsert it back again. Usually is is +ve on top (this is marked on the battery)

(click on image to enlarge for better viewing).

When starting the laptop the first time again after both the CMOS and main batteries have been removed/replaced etc there may be a message regarding incorrect date and time. This is normal as the BIOS has defaulted back to its’ factory default settings. Once the date and time have been corrected the message will not show again when starting."

I had the identical issue with my ASUS X202E laptop. To speed the full shutdown, hold the off button down for about 40 seconds while disconnected from power. Next, cool the machine! I put mine outside on the deck for half an hour in a Vancouver December afternoon. Then, restart and immediately go to power management in settings and select the Microsoft Windows 10 recommendation for “Balanced” not the ASUS power settings. Since doing this, I have had no further issues.

"Hello, same issue with a V752, tried everything mentioned here, no results.

I pulled out the RAM, one by one and I found that one is dead! Problem solved, now the Rog is back to life."

"Hiiiiii????

Asus rog gl502vy power indicator on but laptop doesn’t boot…I’ve tried all of the above but to no avail⚰️"