<p>It sounds like your posture/orientation sensor is misreporting the device’s position. When a Surface thinks it’s folded back into tablet mode, it automatically disables the Type Cover + touchpad and if that sensor glitches, it’ll do it randomly. The upside-down screen + dead keyboard combo matches that exactly.</p>
<p>A few things you can try:</p>
<p>Full Surface Recovery Image reinstall</p>
<p>Not “Reset this PC,” but the official Surface Recovery Image from Microsoft. This rebuilds firmware + sensor calibration files, and it fixes a lot of weird sensor bugs.</p>
<p>Install the full driver bundle afterward</p>
<p>Grab the complete SP8 driver pack from Microsoft and install it after Windows finishes updating. This reinstalls the Sensor Fusion + Surface Integration drivers.</p>
<p>Sensor test in UEFI</p>
<p>Since it happens before Windows loads, gently tap/flex the upper-left area (where the magnetic hall sensor usually sits). If the screen rotates or the keyboard cuts out in UEFI, that confirms its hardware.</p>
<p>If it triggers in BIOS, it’s almost certainly hardware</p>
<p>At that point it’s usually:</p>
<p>A failing hall/orientation sensor or the sensor fusion board/cable.</p>
<p>Not a Type Cover issue.</p>
<p>Before paying CAD $900, definitely try the full recovery image + driver bundle. If the problem still shows in UEFI, unfortunately that points to <img src="//forum-microsoft.fr/images/emoji/twitter/backhand_index_pointing_right.png?v=15" title=":backhand_index_pointing_right:" class="emoji" alt=":backhand_index_pointing_right:" loading="lazy" width="20" height="20">HARDWARE.</p>
