While newer and older versions exist, version 21.013 remains highly sought after in the electronics repair community.
Disconnect all power sources from your target board. Remove the CMOS battery from the motherboard completely.
Download the official installation engine from the WCH-IC CH341PAR Driver Page. Run CH341PAR.EXE and click . asprogrammer 21 013 download free
Connect the CH341A programmer via USB and attach the SOIC8 test clip to your BIOS chip. Make sure the pin 1 (marked with a red wire on the clip) aligns with the pin 1 on the chip. Open Software: Launch AsProgrammer.exe .
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The primary source for binary releases is usually the Official GitHub Repository .
Built specifically to maximize the speed and stability of CH341A hardware, alongside support for various USB-TTL and Arduino-based programmers. While newer and older versions exist, version 21
Select the exact match from the list. If multiple similar models appear, match the exact voltage and capacity layout. 3. Backing Up the Original Firmware (Crucial Step!)
Using AsProgrammer 2.1.0.13 is straightforward. Here is a basic workflow for flashing a bios chip: Download the official installation engine from the WCH-IC
: This typically indicates insufficient power delivery. The standard black CH341A boards output a 5V signal logic on data lines by default, which can cause reading instability on standard 3.3V flash chips. Consider doing a quick hardware modification or using an explicit 1.8V adapter for low-voltage logic chips.
: This means the data path pins are completely loose. Re-seat your SOP8 flashing probe clip, clean oxidized contact surfaces with rubbing alcohol, and try reading the ID again.