Remove Immobilizer box from the dashboard.
Use Xprog-m to read out 93C66 data and save it.
Open TM100 software and find out Toyota Camry after 2005 93C66 module, click “Open software”, load 93C66 data, it prompts “I can use original chip (with G chip)” and click “Yes”, select “Key 1” to write start.
TM100 will generate new data, write it back to 93C66 is okay.
Install immobilizer box back.
Use the new key to start the car.
This is from obd tool website technical support: Toyota Camry with G Chip all key lost, TM100 and Xprog-m make key