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| Problem | Likely Cause | Solution in NEOProgrammer 21019 | | :--- | :--- | :--- | | | Poor clip contact or wrong voltage. | Re-attach clip. In Settings, lower "SPI Clock" to 1.5 MHz or 1 MHz. | | Verification failed at address 0x... | Bad connection or chip is locked. | Check soldering. Uncheck "Check ID" and try a slow write. | | Write succeeds but chip doesn't work | BIOS region is protected. | In the "Special" menu, use "Unlock IC" before erase. | | "USB device not recognized" | Driver conflict. | Run zadig.exe (included in Drivers folder) and replace the driver with libusb-win32. |

One of the hallmark updates in 2.1.0.19 was a revised detection algorithm for 93Cxx MicroWire chips, making it much more reliable for automotive and industrial hardware. neoprogrammer 21019 top download

Superior at "auto-identifying" unknown chips compared to stock software. | Problem | Likely Cause | Solution in