Updated: Lumia 950 XL demo units recalled from Microsoft stores due to hardware problem

Update: a Microsoft spokesperson reached out to us to clarify the situation. The official statement says that the prototype units have been removed from stores as Microsoft finalizes the experience. Here's the statement in full:

As Microsoft had to recall all of its Lumia 950 XL demo units, this leads us to believe that hardware might be the problem. Otherwise, if the problems Microsoft has been experiencing came from the software, then there would be no need to recall all units when a simple software update would suffice. At the moment, we don't have any information regarding what the problem may be. While some may hurry to suggest that yet another smartphone has fallen victim to the Snapdragon 810 overheating issues, it's way too early for such assumptions.

As many probably already know, the Microsoft Lumia 950 XL comes with a range of high-end specs, such as a 5.7-inch display with a resolution of 1440 by 2560 pixels, a Qualcomm Snapdragon 810 chipset paired with 3GB of RAM, 32GB of microSD-expandable storage, a 20MP primary camera, a 5MP secondary shooter on the front, as well as a sizeable 3340mAh battery.