The scanner may have un-paired from its USB receiver. Unplug the USB dongle, plug it back into a different port, and scan the "Pairing Mode" barcode. Keep the scanner within 6 inches of the dongle during the pairing process.
: Transmits data instantly to the host device. If disconnected, data is lost.
The scanner will emit a short beep, and the LED will stabilize, indicating a successful connection. Wired Mode
A: The manual confirms yes for Android 4.0+ with OTG support. You may need to disable "Virtual Keyboard" in Android settings to avoid double-typing. nadamoo barcode scanner yhd-5100 manual
NADAMOO YHD-5100 is a handheld 1D wireless barcode scanner designed for long-range transmission and inventory management. Operating on a 433MHz frequency
Problem: The scanner is connected, but data is not appearing on the screen.
This time, the screen didn’t just flicker. It scrolled text. Not the standard 128-bit decryption he was used to. This was different. It was a cascade of numbers, then letters, then... instructions? The scanner may have un-paired from its USB receiver
If you need to change advanced settings (like volume, beep type, or prefix/suffix additions), you need the specific barcode sheet.
I can give you accurate configuration steps based on standard YHD-5100 programming logic (since many generic scanners use identical command barcodes).
Unplug the USB cable, restart the computer, and plug it into a different USB port (preferably a direct port on the back of the motherboard rather than a USB hub). Solution 3: Scan the "Reset to Factory Defaults" barcode. : Transmits data instantly to the host device
Used for specific POS software integrations requiring serial data communication. (Requires specific driver installation on older Windows systems). 4. Advanced Settings & Customization
If the scanner is behaving oddly (not beeping, scanning weird characters), reset it to default.
If you work in a quiet office, you can mute the device. If you work in a noisy warehouse, you can crank the volume up. High Volume Low Volume Prefix and Suffix Formatting