As of 2025-2026, the CH341A is still in production, and Neoprogrammer 21 019 remains the most stable build. Newer versions (22xxx, 23xxx) introduced UI bugs and reduced chip support. The "21 019 full" release is considered the BIOS repair community's standard.
There are also forks adding:
However, for Windows users, the 21 019 full package is the definitive tool.
Example script to flash a BIOS automatically: neoprogrammer 21 019 ch341a full
Neoprogrammer.exe /chip W25Q64FV /erase /write newbios.bin /verify
This is invaluable for production or batch updates.
The standard "AsProgrammer" or "CH341A Software (green/black interface)" often fails to correctly identify chips or corrupts data during writes. NeoProgrammer addresses these issues with a cleaner interface and more robust algorithms.
| Task | Neoprogrammer Shortcut |
|-------|------------------------|
| Read chip | F5 |
| Write chip | F6 |
| Verify | F7 |
| Erase | F8 |
| Blank check | Ctrl + B |
| Chip search | F2 |
| Save buffer | Ctrl + S |
| Load buffer | Ctrl + O | As of 2025-2026, the CH341A is still in
Last updated: 2026
Supported OS: Windows 7, 8, 10, 11 (x86/x64)
Hardware required: CH341A (black PCB recommended, green PCB works but may need 3.3V mod)
Disclaimer: Always backup original firmware before flashing. The author is not responsible for hardware damage resulting from incorrect voltage, wrong pin connections, or corrupted firmware files. Proceed at your own risk.
Because Neoprogrammer is open source (originally), the "full" label often comes from community repacks. Always download from reputable sources like: However, for Windows users, the 21 019 full
Avoid executable wrappers that ask for admin rights unnecessarily. Scan the ZIP with VirusTotal – clean versions will have 0/60 detections. The "full" name should refer to chip database size, not bloatware.
The standard CH341A has known physical limitations: 3.3V logic (incompatible with 1.8V modern BIOS chips) and a lack of overcurrent protection. The "21 019" variant usually refers to a board revision that includes:
The hard truth: It is still a CH341A. The USB controller is the same. You cannot turn a bicycle into a Ferrari. However, the "21 019" fixes the low-hanging fruit that killed chips on the original blue board.
Do not mistake convenience for professionalism. Here is the reality of this setup:
As of 2025-2026, the CH341A is still in production, and Neoprogrammer 21 019 remains the most stable build. Newer versions (22xxx, 23xxx) introduced UI bugs and reduced chip support. The "21 019 full" release is considered the BIOS repair community's standard.
There are also forks adding:
However, for Windows users, the 21 019 full package is the definitive tool.
Example script to flash a BIOS automatically:
Neoprogrammer.exe /chip W25Q64FV /erase /write newbios.bin /verify
This is invaluable for production or batch updates.
The standard "AsProgrammer" or "CH341A Software (green/black interface)" often fails to correctly identify chips or corrupts data during writes. NeoProgrammer addresses these issues with a cleaner interface and more robust algorithms.
| Task | Neoprogrammer Shortcut |
|-------|------------------------|
| Read chip | F5 |
| Write chip | F6 |
| Verify | F7 |
| Erase | F8 |
| Blank check | Ctrl + B |
| Chip search | F2 |
| Save buffer | Ctrl + S |
| Load buffer | Ctrl + O |
Last updated: 2026
Supported OS: Windows 7, 8, 10, 11 (x86/x64)
Hardware required: CH341A (black PCB recommended, green PCB works but may need 3.3V mod)
Disclaimer: Always backup original firmware before flashing. The author is not responsible for hardware damage resulting from incorrect voltage, wrong pin connections, or corrupted firmware files. Proceed at your own risk.
Because Neoprogrammer is open source (originally), the "full" label often comes from community repacks. Always download from reputable sources like:
Avoid executable wrappers that ask for admin rights unnecessarily. Scan the ZIP with VirusTotal – clean versions will have 0/60 detections. The "full" name should refer to chip database size, not bloatware.
The standard CH341A has known physical limitations: 3.3V logic (incompatible with 1.8V modern BIOS chips) and a lack of overcurrent protection. The "21 019" variant usually refers to a board revision that includes:
The hard truth: It is still a CH341A. The USB controller is the same. You cannot turn a bicycle into a Ferrari. However, the "21 019" fixes the low-hanging fruit that killed chips on the original blue board.
Do not mistake convenience for professionalism. Here is the reality of this setup: