




| Aspect | Off-circuit (removed chip) | Hot (in-circuit, powered board) | |--------|----------------------------|----------------------------------| | Safety | High | Low (risk of damaging board/programmer) | | Convenience | Low (desoldering required) | High (no desoldering) | | Required hardware | SOIC/test clips optional | SOIC clip or pogo pins | | Power source | Programmer provides VCC | Target board may provide VCC |
Some CH341A boards have poor voltage regulation on the PCB itself. 3. How to Prevent/Fix "Hot" ICs in NeoProgrammer
The CH341A chip was known for its versatility and reliability, and Jack was excited to experiment with it. He spent hours poring over the user manual, watching tutorials, and practicing his programming skills.
In the world of NeoProgrammer, error codes aren't always descriptive. However, "21019" typically points to a between the software and the programmer. This usually triggers when:
In-circuit programming (ICSP) is where the "hot" term shines. You attach the SOP8 clip directly to a soldered-down chip on a motherboard.

| Aspect | Off-circuit (removed chip) | Hot (in-circuit, powered board) | |--------|----------------------------|----------------------------------| | Safety | High | Low (risk of damaging board/programmer) | | Convenience | Low (desoldering required) | High (no desoldering) | | Required hardware | SOIC/test clips optional | SOIC clip or pogo pins | | Power source | Programmer provides VCC | Target board may provide VCC |
Some CH341A boards have poor voltage regulation on the PCB itself. 3. How to Prevent/Fix "Hot" ICs in NeoProgrammer
The CH341A chip was known for its versatility and reliability, and Jack was excited to experiment with it. He spent hours poring over the user manual, watching tutorials, and practicing his programming skills.
In the world of NeoProgrammer, error codes aren't always descriptive. However, "21019" typically points to a between the software and the programmer. This usually triggers when:
In-circuit programming (ICSP) is where the "hot" term shines. You attach the SOP8 clip directly to a soldered-down chip on a motherboard.





