Battery Not Detected on Galaxy Book4 Edge 16" After BIOS Update

[LegendCoder]

Hi Samsung Community,

I'm experiencing a serious issue with my Galaxy Book4 Edge 16" (1TB model) after a recent BIOS update. After installing the update, Windows 11 no longer detects the battery — it shows as if there's no battery installed, even though the laptop runs when plugged in. The charging icon is missing, and the system does not recognize or charge the battery at all.

I contacted Samsung technical support, but all they recommended was a laptop reset. I’ve already tried that along with the following steps:

• Resetting BIOS settings to default
• Uninstalling and reinstalling the battery drivers from Device Manager
• Performing a complete shutdown and static discharge

None of these steps resolved the issue, and it’s very clear this started immediately after the BIOS update — which strongly points to a firmware-level issue that cannot be resolved through basic troubleshooting.

I’m not alone in facing this. Others have reported the same issue on Reddit:
🔗Reddit Post – Windows not detecting battery despite running on power

It seems the latest BIOS update may have broken battery communication or detection at the firmware level.

Key Details:

• Device: Galaxy Book4 Edge 16" 1TB
• OS: Windows 11
• Issue: Battery not detected or charging after BIOS update
• Attempted Fixes: Reset, BIOS reset, driver reinstall, static discharge — all failed

This is a critical issue that needs urgent attention from Samsung's engineering team. A firmware rollback or updated BIOS fix is likely required.

Please escalate this issue. If anyone else is experiencing this, I encourage you to reply and share your details so Samsung can see how widespread this is.

-- Update--

Thank you to the Samsung team for resolving the issue. For anyone still experiencing problems, please update your BIOS—the fix has been implemented.

[LegendCoder]

For now, I’ve found a workaround: I plug in the power cable while the laptop is off, then turn it on. If I connect the charger while it’s already on, it doesn’t draw any power.

Really hoping they release a fix soon.

[Samsung_TrKNUgs]

This did not work on me

[LegendCoder]

The only way I can get it to work is if I first connect the charger via USB-C, and then restart the laptop. Only after that it shows up. But if I unplug it and replug it while the laptop is on, it won’t detect it again—forcing me to restart every single time. This is unacceptable and completely breaks workflow.

[Helenna]

Hi LegendCoder,

Thanks for the update. We really appreciate you sharing that workaround, as it could help others facing the same issue.

We're continuing to monitor the situation closely and have escalated it internally. Hopefully, a future firmware update will address the root cause.

[zzzz3]

What is the status of this?  It's been 2 weeks and there is still no fix

[tdeme]

I'm having the same issue after installing BIOS version P00AKX.060 on my Galaxy Book 4 Edge last week. I have tried reinstalling Windows and the other recommended fixes above to no avail. 

[jofish89]

I've also been having this issue and it is quickly becoming a major impediment.

[stickshift88]

Also having this exact issue after an update i received today. Completely bricked my galaxy book 4 edge. System SKU GALAXY A5A5-PAKY, after doing the bios update i cannot use the laptop without being connected to a wire. 

Bios: BIOS Version/Date SAMSUNG ELECTRONICS CO., LTD. P00AKY.053.250618.WY.1649, 6/18/2025

[LegendCoder]

Samsung EmuEC Device driver not found after the updateThis update caused the issue.No battery detected by the systemNo battery detected by the systemLaptop details