, as the board lacks a programming interface for AT commands. AliExpress Performance Highlights Audio Quality : Features a signal-to-noise ratio of and total harmonic distortion of , providing high-fidelity stereo output. Power Versatility : Can be powered via Micro-USB/Type-C 3.7-5V lithium battery , and includes an onboard charging circuit. User Experience
Click the or Burn button within the software utility. The software will recompile the configuration binary file and flash it onto the onboard EEPROM storage via the UART interface. Once the process reaches 100%, desolder your programming wires and cycle the power to the board. Summary of Methods Technical Difficulty Permanence 1. Codec Bypass Moderate (Requires extra board) Permanent across all target devices 2. Host Aliasing Device-specific (Local change only) 3. Hardware Flashing Low (Requires serial tools) Permanent on the chip level
While the is a popular and affordable Bluetooth audio receiver, it does not officially support simple "AT commands" (like some data modules do) for renaming. To change the broadcast name—typically "VHM-314" or "XY_BT" —you generally have two paths: a simple software-side alias or a complex hardware-level firmware modification. Option 1: Software Renaming (The Easy Way)
Many users find that modifying these boards or adding resistors (like a 220-ohm or 2.1K Ω resistor) can help eliminate static background noise. Volume Issues:
Type your desired custom name into the text box. Keep the name under 20 characters to avoid memory allocation issues.
The VHM‑314 is a product of the global low‑cost electronics ecosystem. It is manufactured by several different Chinese companies (Zhanrui Electronics, Shenzhen Qianhai Ku Xian Sheng Industrial, and others). These companies are not incentivised to add user‑configurable naming; the module’s selling point is its price, not its features. As long as the VHM‑314 continues to be sold for under $5, it is highly unlikely that any manufacturer will invest the engineering effort to add a configuration interface.
If your board supports AT commands over serial, attach your USB-to-TTL adapter to the board's TX/RX pins, open a serial terminal emulator (such as PuTTY, Tera Term, or Arduino Serial Monitor) on your PC, and configure the serial settings to: 9600 or 115200 (most common) Data Bits: 8 Parity: None Stop Bits: 1 Once connected, send the testing command: AT Use code with caution.
If easy name customization is a critical requirement for a commercial product or a gift, consider replacing the VHM-314 with a module designed for customization. Modules based on Qualcomm chips (like the CSR8645 or QCC3008 ) or the KRC-86B feature accessible configuration modes or dedicated software utilities that allow name changes via a simple USB connection without complex hacking.
: Use the PSTool software to filter for "user friendly name".
Search for the parameter local_device_name or name in the PS Key list.