Surface Pro firmware update fixes Pen and touch performance issues

Microsoft this week shipped out a fresh firmware update for its latest Surface Pro that finally addresses a lingering and widespread issue related to Surface Pen performance. In a lengthy thread on its Answers forum, a Microsoft representative confirmed that a fix for the issue, which caused the pen line to become offset if a users hand is resting on the screen while drawing, began rolling out on August 8 (via Reddit).

Alongside the pen fix, Microsoft also addressed system security and stability with the latest batch of firmware. Here's a look at all of what's new:

  • Marvell AVASTAR Bluetooth Radio Adapter – Bluetooth: 15.68.9125.57 improves system security.
  • Marvell AVASTAR Wireless-AC Network Controller – Network adapters: 15.68.9125.57 improves system security.
  • Surface Integration Service Device – System devices: 4.18.136.0 improves system stability.
  • Surface Touch Servicing ML – System devices: 1.16.139.0 improves pen and touch performance.
  • Surface Touch – Firmware: 429.0.1.10 improves pen and touch performance.
  • Surface UEFI – Firmware: 234.2291.769.0 improves driver installation servicing.

So far, it looks like the update has succeeded in addressing the issue, with several users that had experienced jitter before reporting that it has been corrected post-update.

If you're using a Surface Pro, and particularly if you were hit with any pen issues, you can grab the latest batch of firmware updates via Windows Update now.

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