, the legendary 2021 build known among hardware hackers for revived support for stubborn SPI Flash chips.
Click the Read ID (SPI/I2C) button to verify a stable connection. Once recognized, click Read to pull the existing data. Click Save to create an unaltered backup of your original firmware.
Click the button. Wait for the progress bar to reach 100%.
Place your EEPROM chip into the ZIF socket or connect your SOIC8 test clip. Ensure Pin 1 aligns correctly with the orientation markings on the programmer PCB.
If you are involved in BIOS flashing, repairing motherboards, or working with SPI flash memory, the CH341A programmer is an essential, budget-friendly tool. While the standard Chinese software often fails or lacks support for newer chips, (commonly associated with 2021 releases and later) is considered the go-to open-source alternative.
Open Windows Device Manager. Confirm your device appears under Interface Devices as "CH341A.USB" instead of under Ports (COM & LPT) . Chip ID returns "000000" or "FFFFFF"
Select the chip type from the dropdown menu (e.g., 25 series -> SPI Flash). Click to verify the connection. Use Open to select your BIOS/firmware file ( .bin or .hex ). Click Program to flash the new firmware. Troubleshooting: Why Use 2.1.0.13 Fix?
Here is everything you need to know about downloading and setting up ASProgrammer 21013.
⚠️ Avoid random “driver download” sites — they often bundle adware.
Provides "Unprotect" functions to clear write-protection bits before erasing or writing to a chip. Download and Installation
: The most popular low-cost USB programmer on the market.
Elias had spent hours navigating archived threads and mirrored repositories. He finally found it—a zip file hosted on a dusty server, timestamped mid-2021. With a click, the download finished. He extracted the executable, the minimalist interface appearing on his screen like a ghost from a previous era of computing. The Resuscitation
: The UsbAsp-flash repository by user nofeletru is a primary source for AsProgrammer releases and assets.
If you absolutely cannot locate 21013 , consider these alternatives that offer the same or better functionality:
ASProgrammer is generally faster and more reliable than the basic software that often ships with CH341A programmers from Chinese retailers. It's also open-source, which allows for community-driven improvements.
