Hid Vid-1ea7 Amp-pid-0066 Amp-rev-0200 Amp-mi-00 Jun 2026

To do this:

Indicates firmware revision 2.00 of the internal controller chip. Multiple Interface (00)

(like a custom keyboard, game controller, or macro pad) that uses an ATmega32U4 or similar Atmel microcontroller.

In Device Manager, click at the top menu and select Show hidden devices . Expand both Keyboards and Human Interface Devices . hid vid-1ea7 amp-pid-0066 amp-rev-0200 amp-mi-00

: The Revision Number. This tells the operating system that your specific hardware is revision 2.00 of the device's firmware.

Search for the brand on the physical device – Liangcheng (VID 1ea7) makes devices branded as:

In , right-click the problematic hardware ID entry. Select Uninstall device . To do this: Indicates firmware revision 2

: The peripheral drops its connection or appears in Device Manager with a yellow warning triangle.

: Right-click the malfunctioning MI_00 entry in Device Manager, select Update Driver , choose Browse my computer for drivers , and select Let me pick from a list of available drivers on my computer . Select HID-compliant device or USB Input Device from the list and hit next to force update the node. 3. Power Management Failures (Ghost Disconnections)

Refers to Multiple Interface 00, indicating this is the first interface of a multi-function device (often seen when a device has both keyboard and trackpad capabilities). Troubleshooting and Driver Information Mediatrack Edge Mini Keyboard Expand both Keyboards and Human Interface Devices

This text provides a concise technical description of a USB Human Interface Device (HID) identified by Vendor ID 0x1EA7 and Product ID 0x0066, firmware revision 0x0200, with Interface (MI) 00.

Before assuming a software issue, rule out a hardware problem. Try the following:

When this device errors out in Device Manager (often accompanied by an ), the issue usually stems from one of three areas: