The is a popular, low-cost tool used by technicians, IT professionals, and hobbyists to flash BIOS chips, firmware, and EEPROMs on motherboards, routers, and various electronic devices. While the CH341A hardware is robust, the original software provided is often outdated or buggy.
Click the button to pull the existing data from the chip.
Once your chip is detected, you can perform several core operations:
Download the compressed ZIP file (usually named NeoProgrammer_2.1.0.19.zip ).
Before the software can communicate with your hardware, you must install the WCH CH341 drivers . Open the extracted NeoProgrammer folder. neoprogrammer 21 019 ch341a install
In NeoProgrammer, click the button (the IC chip icon with a magnifying glass).
Connecting your hardware correctly is just as important as the software setup. The most common and simplest use case for the CH341A is programming a 25 series SPI flash chip, which is found on most modern routers, PC motherboards (BIOS), and many other electronic devices.
Right-click NeoProgrammer.exe , go to -> Compatibility , check Run this program as an administrator , and click Apply . Double-click the executable to launch the application. Step 4: Configure NeoProgrammer for the First Time
After installation, your CH341A should appear as a COM port under "Ports (COM & LPT)" in Device Manager. This confirms the drivers are working properly. The is a popular, low-cost tool used by
Before installing the software, ensure you have the necessary hardware components:
Place the IC in the correct ZIF socket slot on the programmer.
Plug the CH341A programmer into a USB 2.0 or USB 3.0 port. Your PC should make a connection sound, and Windows Device Manager will list the device under Interface Devices or Ports as "CH341A." Step 3: Extract and Configure NeoProgrammer
The chip you wish to program (e.g., BIOS IC). 3. Installing CH341A Drivers Once your chip is detected, you can perform
How to Download, Install, and Use NeoProgrammer (21.019) with CH341A
Enter . It is arguably the best open-source software for these devices. It cleans up the interface and adds support for a massive list of EEPROM, SPI Flash, and I2C chips that the standard software misses.
Search for NeoProgrammer 2.1.0.19 on reputable sites like , Bios-Chips.info , or trusted GitHub archival repositories.