Subaru BRZ 2013 proximity all keys lost is done with Autel IM508 XP400 Pro.
Get Denso ECU box out, unsolder the chip, read eeprom 93C86, solder back, connect Denso back, use autel im508 with apb112 to create analog key then add smart keyless.
Using after-market key.
Definitely saved a customer 2k$ because the dealer charges 2800 to replace key + smart box + engine ECU.