Lenovo is recalling a number of models of the Lenovo ThinkPad X1 Carbon. The laptops can catch fire. Four models of the fifth generation ThinkPad X1 Carbon are affected by the issue at hand. It seems it all comes down to a screw 

The computer manufacturer has announced this on its website. A screw in the laptops a screw is not properly attached, which can cause a fire in some situations. According to the tech company, that has not yet happened. The laptops are preventively called back.

Lenovo has determined that a limited number of such laptops may have an unfastened screw that could damage the laptop’s battery causing overheating, potentially posing a fire hazard. ThinkPad X1 Carbon 5th Generation laptops manufactured on or after November 1, 2017 are not affected. To confirm if your ThinkPad X1 Carbon 5th Generation laptop (Machine Types: 20HQ, 20HR, 20K3, 20K4) is affected, follow the instructions below in the "Determine if my laptop is being recalled" section. Lenovo is offering a free service inspection program for all affected ThinkPad X1 Carbon 5th Generation laptops. If your laptop is confirmed to be affected, follow the instructions below in the "My laptop is affected" section.

Last month HP also called back laptops because the battery could overheat and catch fire.

Lenovo is calling back ThinkPad X1 Carbon 5th Gen Laptop Due to Fire Hazard