Problems after software update: Engine indicator light illuminated

Check if the software update was completed successfully and ensure that all connections to the vehicle's diagnostic port are secure. If the issue persists, try performing a hard reset by disconnecting the battery for a few minutes, then reconnecting it. This can sometimes resolve software glitches. If the engine light remains on, have the error codes read to identify any underlying issues. Let me know how it goes or if you have further questions.