Slim pen 2 not charging with slim pen charger

Question

Slim pen 2 not charging with slim pen charger

Arg Entina 20

Hi, I recently purchased a Surface Pro 10 for Business with Windows 11 Pro, along with a slim pen 2 and slim pen charger. The pen was 50% charged when I placed it in the charger and connected it to the tablet. However, it wasn't charging (the light was flashing amber(red) and white). I downloaded the driver update for Surface Pro 10 from the Microsoft link (the MSI file is for my version of the tablet). After installing the drivers, the devices show Surface Firmware Update ver. 5.70.11.0 (when connected charger to tablet), but the pen still won't charge. It's completely dead (0% after few hours). Will there be a firmware update for the charger, or is this already the latest version? What should I do now that I don't have a charger?

0 comments

Answer accepted by question author

0 additional answers

Your answer

Answer 1

Harold Milan 17,560 Independent Advisor

Hi There,

Thank you for reaching out and sharing your setup. I understand how disappointing it is to see your Slim Pen 2 not charging after investing in a Surface Pro 10 for Business. The flashing amber and white light on the Slim Pen Charger typically signals that a firmware update is needed. While you've installed the correct MSI driver and see Surface Firmware Update version 5.70.11.0, that version applies to the tablet not the charger. The charger’s firmware may not have updated yet, or the update hasn’t been pushed through Windows Update or the Surface app. As a result, the charger may not be communicating properly with the pen, leaving it at 0%. I recommend checking the Surface app for accessory updates

What You Can Do

Check for updates using the Surface app:

Open the Surface app available in the Microsoft Store.

Connect the Slim Pen Charger to your Surface and place the pen inside.

Go to Help & Support > Check for updates.

If an update is available for the charger, install it and restart your device.

Try another charging accessory if available:

If you have access to a Surface Pro Signature Keyboard or another Slim Pen Charger, test the pen there.

If the pen still doesn’t charge, it may be a hardware issue with the pen itself.

I hope this helps clarify the situation. Let me know if you’d like assistance checking for updates compatibility through firmware updates.

Arg Entina 20 Reputation points

2025-09-30T20:10:26.33+00:00

Thank you for your quick response. I tried updating via the Surface App as you suggested, but there are no updates. The Windows Update settings also show 0 updates under "Optional" as well. Is it possible to manually update the charging firmware? Or is it only possible through the Windows Update service, and if so, how long might it take for the updates to arrive?
Arg Entina 20 Reputation points

2025-09-30T21:15:16.89+00:00

Thank you for your quick response. I tried updating via the Surface App as you suggested, but there are no updates. The Windows Update settings also show 0 updates under "Optional" as well. Is it possible to manually update the charging firmware? Or is it only possible through the Windows Update service, and if so, how long might it take for the updates to arrive?
Harold Milan 17,560 Reputation points Independent Advisor

2025-10-01T17:18:16.21+00:00

Hi again,

Unfortunately, manual firmware updates for the Slim Pen Charger are not currently supported. I suggest you request a remote session via the Surface app or Microsoft Support to check if they can update it manually. Contact - Microsoft Support

Let me know how it goes, I'm here to help!
Arg Entina 20 Reputation points

2025-10-03T09:17:06.26+00:00

Hi,

There's no other way to contact support via link your provided or using Surface App (maybe this is a restriction in Ukraine). I bought a keyboard with a charging tray for the pen - everything works, but I'd like to get the Slim Pen charger to do the same. I tried connecting it to another Windows 10 PC, but it didn't work - the device is detected correctly, but the updates still haven't arrived. I tried leaving it connected to the Surface Pro 10 overnight, but the updates still haven't arrived. I read on Reddit that some people had to plug the charger into the Surface Studio (and the charger firmware updated without problems, and the Slim Pen 2 charges), but that's not an option for me. I don't know what to do anymore - the device is now sitting there useless. Perhaps there are other ways to force an update?