Laptop hardly working - CMOS Reset (502) error message

[Elliott5282]

Hi all. I really hope someone can help me with this. 

last night, I launched a game for the first time, “Halo: Spartan Strike” and I clicked on the game icon on the menu to open the window up to play it and I got a black screen and it completely locked up my computer. Windows key wouldn’t work, control alt delete wouldn’t work, so I had to shut it down by holding down the power button.

Upon reboot, I got this error message:

”The CMOS checksum is invalid. The CMOS will reset to the default configuration, and the computer will restart. Afterwards, please check the BIOS setup options to see if they change.

” CMOS Reset (502)”

Also, the first thing I noticed after this screen was that my keyboard lights weren’t on anymore.

When I got to the login screen, the screen’s display is tearing, flashing, blinking, pretty much going crazy. I can barely navigate or see anything, but I have access to a powered on computer none the less.

I’ve tried factory resetting but I get a message saying “there was an error resetting your PC.”

Please help! It would mean a lot. Pictures included to help. (I can’t really get a picture of the screen errors because it’s spontaneous, but PLEASE HELP!)

 

[Alden4 · Accepted solution]

Hi @Elliott5282,

Welcome to HP Support Community.  

Thank you for posting your query, I will be glad to help you.

The "CMOS Reset (502)" error message on an OMEN 15.6 Inch Gaming Laptop suggests an issue with the laptop's CMOS settings or battery. CMOS stands for Complementary Metal-Oxide-Semiconductor, and it's responsible for storing essential hardware configuration information, including date and time settings.

Here are some steps you can take to troubleshoot and potentially resolve this issue.

• Check Date and Time: Start by booting up your laptop and checking if the date and time settings are correct. If they're incorrect or reset every time you power on the laptop, it's a sign that the CMOS battery might be failing. You can adjust the date and time settings in the laptop's BIOS/UEFI.
• Replace CMOS Battery: If the date and time settings keep resetting, you may need to replace the CMOS battery. This battery is responsible for maintaining the CMOS settings even when the laptop is powered off. It's typically a small coin cell battery located on the laptop's motherboard. You might need to open up the laptop to access and replace it.
• BIOS/UEFI Reset: Sometimes, resetting the BIOS/UEFI settings to default can help resolve CMOS-related issues. To do this, access the BIOS/UEFI setup (usually by pressing a specific key like F2, F10, or DEL during startup), find the option to reset to default settings, and confirm the reset. Save and exit the BIOS/UEFI setup.
• Update BIOS/UEFI Firmware: Check if there's a BIOS/UEFI firmware update available for your laptop model on the manufacturer's website. Sometimes, updating the firmware can resolve compatibility or hardware-related issues.
• Hardware Inspection: If none of the above steps work, it might be a more significant hardware issue.

I hope this helps. 
 

Take care and have a good day.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

Alden4
HP Support