KAOS https://kasper-oswald.de/gb/services/
Official firmware https://github.com/emsec/ChameleonMini
Supported firmware https://github.com/RfidResearchGroup/ChameleonMini
Store: https://lab401.com/products/proxgrind-chameleon-mini-revg
https://github.com/RfidResearchGroup/proxmark3
Bricked?