Unlike basic software that struggles with larger memory sizes, version 2.1.0.19 allows for reading, writing, and erasing large-capacity chips, often ranging from 8MB to 128MB.
Once the read process reaches 100%, look at the Hex view to confirm it is not entirely filled with FF or 00 (which indicates a poor connection).
Clones still work, but with reduced max VPP (locked to 15V) and slower algorithms. Controversial, but arguably protective.
The Complete Guide to Neo Programmer 2.1.0.19: Features, Setup, and Troubleshooting