Current known limitation and issues noted from testing Surface Pro 4 Device

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Preliminary Info

The Surface Pro 4 comes initially installed with Windows 10 Pro.   Surface Pro 4 initially was able to install SecureDoc using build above 7.1 SR1 however since Microsoft pushed windows updates to include the latest version of Windows 10 Creators edition (1703) , hence, it’s recommended to setup device using SecureDoc build 7.1 SR6 or higher.

Note: For recommended configuration settings to setup the Surface Pro 4 device, please refer to KB Article 1690

After installing SecureDoc, you may see during boot up process, it’s normal to see kernel window screen during boot up process

At the time of writing this article, the following hardware issues and limitations have been observed when using SD 7.1 SR6 or higher using Surface Pro 4:

Test Results

When Using PBLUX64

PBLU - Wired PBConnex – Passed under 7.5

PBLU - Wireless PBConnex – Failed SD-20758

PBLUx64

Touch and wireless - not supported.

There is ongoing testing for possible support in a future release specifically for wireless.  There is an open ticket regarding wireless support which is being investigated for 8.1 build – SD-21342

There’s a requirement to enter a boot parameter: -console=null quiet nosmp acpi=off reboot=warm

Keyboard Detection

It's may be possible to encounter a keyboard detection issue depending on PID\VID.  (this could happen in event MS releases a keyboard with different VID\PID hence potentially resulting in not being in PBLU list.

When Using PBU

PBU - Wired Connect PBConnex - Failed  See SD-23469

The following hardware limitations have currently been noted using PBU (since BIOS doesn’t support them):

VGA Display with Dock -> no video output at BIOS time
Wireless Display Adapter -> no video output at BIOS time
VGA Display Adapter -> no video output at BIOS time
HDMI Display Adapter -> no video output at BIOS time

Native UEFI preboot (PBU) -> wired PBConnex with USB Ethernet Dongle Model 1663 is not working
Native UEFI preboot (PBU) -> wired PBConnex with Surface Dock Model 1661 is not working

Current Status:   The PBConnex issues was resolved after version SES 7.1 SR4.  

Internal Reference:
KB 1521 Internal KB: Limited Hardware and Preboot Features Support for Surface Pro 4 Devices
SD-19480 Internal reference to Jira case regarding issue addressed in SD 7.1 SR4

SD-21342 Open case for Wireless Support using pblux64

SD-20758 related to PBLU Wireless Connect failed (Win10 1703)

SD-23469 related to PBU Wired Connect failed (Win10 1703)