Display Blinking

[KeshanVish]

Recently When I am power up my Notebook it's display blinking for 1 or 2 sec is that a problem?

And sometimes it shows CMOS Reset 

[KrazyToad]

@KeshanVish

Welcome to HP Support Forums. A really great platform for posting all your questions and finding solutions.

I have gone through your Post and would like to help

Does the Notebook boot up to Windows after the blinking?

If it does, then I suggest you download and run the HP Support Assistant from this Link: https://www8.hp.com/us/en/campaigns/hpsupportassistant/hpsupport.html?jumpid=va_r602_us/en/any/psg/p...

The HPSA will automatically look for all the latest drivers for your Notebook

1. Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.

   

2. Click Check for updates and messages to scan for new updates.

   

3. Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.

4. Click the update name for a description, version number, and file size.

5. Select the box next to any updates you want to install, and then click Download and install.

Also ensure Windows 10 is up to date

Select the Start  button, and then go to Settings  > Update & Security   > Windows Update , and select Check for updates.

Keep me posted how it goes

Thank you and have a wonderful weekend 😊

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.

[KeshanVish]

Everything is updated but still blinking and sometimes notebook randomly restart and after a movement open black screen and shows coms

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@KrazyToad wrote:

@KeshanVish

Welcome to HP Support Forums. A really great platform for posting all your questions and finding solutions.

I have gone through your Post and would like to help

Does the Notebook boot up to Windows after the blinking?

If it does, then I suggest you download and run the HP Support Assistant from this Link: https://www8.hp.com/us/en/campaigns/hpsupportassistant/hpsupport.html?jumpid=va_r602_us/en/any/psg/p...

The HPSA will automatically look for all the latest drivers for your Notebook

1. Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.

   

2. Click Check for updates and messages to scan for new updates.

   

3. Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.

4. Click the update name for a description, version number, and file size.

5. Select the box next to any updates you want to install, and then click Download and install.

Also ensure Windows 10 is up to date

Select the Start  button, and then go to Settings  > Update & Security   > Windows Update , and select Check for updates.

Keep me posted how it goes

Thank you and have a wonderful weekend 😊

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.

---

502 coms reset 

[KrazyToad]

@KeshanVish

Thanks for keeping me posted

Please download the BIOS directly from this Link: https://support.hp.com/us-en/drivers/selfservice/swdetails/hp-15-ay500-notebook-pc-series/12229013/m... and let me know if that helps

If the issue persists, please perform a Reset. You can refer to this Link: https://support.hp.com/in-en/document/c04742289

Let me know how it goes

Thank you 😊

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.