When trying to calibrate battery System Check Command File Improperly formated or Missing

[Howardsr]

I'm running WIndows 11 on a 4 month old Envy X360. The system works fine but HP Support Assistant says I need to calibrate the battery. The battery has been plugged in over 5 hours and was fully charged the whole time, but Support Assistant won't calibrate the battery.

When I try and run UEFI from the F2 proompt at start up it says System Check Command File improperly formatted or missing.  What do I do next. 

[Max3Aj · Accepted solution]

Hello @Howardsr, and welcome to the HP Support Community!

Thanks for posting your question. I'm here to help you get things back on track.

You're encountering two related issues:

1. HP Support Assistant prompts for battery calibration but doesn't proceed.
2. UEFI diagnostics show “System Check Command File improperly formatted or missing.”

Let’s walk through how to resolve both.

Step 1: Update HP PC Hardware Diagnostics UEFI

The error you're seeing usually means the UEFI diagnostics tool is outdated or corrupted. You can manually update it:

1. Go to the official HP Diagnostics page:
   Download HP PC Hardware Diagnostics UEFI
2. Scroll to Diagnose PC issues outside of the OS and click Download.
3. Run the installer and follow the prompts to update the UEFI diagnostics tool.

Once updated, restart your laptop and press F2 at boot to access the diagnostics menu. The error should be gone.

Step 2: Calibrate the Battery Manually

If HP Support Assistant fails to calibrate the battery, you can do it manually using UEFI diagnostics:

1. Fully charge your battery to 100%.
2. Disconnect the AC adapter.
3. Shut down the laptop and press F2 repeatedly at startup to enter UEFI diagnostics.
4. Navigate to:
   • Component Tests → Power → Battery
   • Click Run Once to test the battery.
5. If the battery passes but needs calibration, click Calibrate Battery.
6. Follow on-screen instructions. The calibration process may take 6–10 hours, so it's best done overnight.

Detailed guide:
HP Battery Calibration Guide

Additional Tips

• Ensure your BIOS is up to date. You can check for updates via HP Support Assistant
• If calibration still fails, try reinstalling HP Support Assistant or use the HP Battery Check tool.

I hope the information shared has been useful and resolves your concern.

Wishing you a smooth and hassle-free experience ahead!

If this solution helped, please click “Accepted Solution” so others can benefit too. Don’t forget to hit the “Yes” button if you found this helpful!

Warm regards,

Max3Aj

HP Support

[Howardsr]

Max thank you for the answer. I had gotten it done manually, but the software update link helped and I was able to verify it using the updated too. 

[Max3Aj]

@Howardsr, A huge thank you for marking this post as the 'Accepted Solution'! We're thrilled that we could help resolve your issue. 

If you have any more questions or need further assistance, please don't hesitate to ask. We're here to help! 

Thanks again for your confirmation, and we wish you an amazing day ahead! 

Regards, 

Max3Aj