The term "" often appears in Windows Device Manager when a Samsung phone is in a low-level recovery or "Boot ROM" (BROM) mode.
If your device is displaying this error and getting hot, . Persistent high heat in a non-booting state can lead to:
If you are looking for technical documentation or "papers" on managing these issues: exynos usb device4000 hot
If your device is stuck in this state and overheating, follow this sequential debugging process to prevent permanent hardware destruction. Step 1: Immediate Thermal Mitigation
Here is a systematic, step-by-step approach to resolve the "Exynos USB Device 4000" overheating issue. The term "" often appears in Windows Device
When a Samsung device is connected to a PC and appears as "Exynos USB Device 4.0.0.0 (COM)," it usually indicates that the hardware is in a pre-boot state. This often happens if: The device has a corrupted bootloader or is "soft-bricked."
If you notice the area around the USB port becoming alarmingly hot, disconnect the data cable and allow the phone to cool for a few minutes. If you must transfer files, consider transferring smaller batches at a time, or use a Wi‑Fi file transfer method to keep the USB port out of the equation. Step 1: Immediate Thermal Mitigation Here is a
cat /sys/class/thermal/thermal_zone*/temp