If you have connected your Samsung Galaxy or Exynos-powered device to a computer and noticed an error labeled "Exynos USB Device 4000" accompanied by significant overheating , you aren't alone. This specific error often appears in Windows Device Manager when a phone enters a low-level boot state, and the resulting heat can be alarming.
Locate the "Exynos USB Device 4000" entry (usually under Universal Serial Bus controllers). Right-click and select . exynos usb device4000 hot
When this mode is triggered improperly—due to software corruption or hardware failure—the chipset can "cycle" or draw excessive power, leading to the device becoming physically to the touch. Common Causes for Overheating in This State If you have connected your Samsung Galaxy or
Permanent damage to the lithium-ion cells. Right-click and select
Use the on a PC to flash the official firmware (Stock ROM).
Here is a deep dive into why this happens and how you can resolve it. What is the "Exynos USB Device 4000" Error?