So I did a software update (from Lexus website), due to nav sometimes glitching. Something happened and I think it corrupted the operating system. Now the screen flashes pink every 10 seconds. It seems similar to an issue RX350 owners faced in 2016.
Here's a video of what it is currently doing.

What works:
- Monitor
- Reverse camera shows up
- Apple CarPlay (will show up as long as I don’t put it in park or reverse during my drive)(if I do, the CarPlay screen won’t show up unless I restart the car and keep it in drive)
- Climate control buttons (only on radio unit)

What doesn’t work:
- Infotainment/entertainment (Audio, Bluetooth, Radio)
- Navigation

The car and everything else is working fine.
I’ve tried disconnecting/reconnecting radio unit plugs and the main battery. Plugs are tight.
I noticed the OS is controlled by a micro SD, so maybe that needs to be replaced. Worse case is a chip on the motherboard has short circuited.
Lexus dealer’s solution is to replace the unit.

Has anyone encountered this issue before or have any other solutions?




New OS Micro SD needed?

Non-Updated Head unit

Updated Head unit

 

If you pressed the ignition button or turned the vehicle off during the flashing process, the EEPROM has likely been corrupted. I would recommend visiting another dealer and request they cover the unit under the TSB. If you receive the same suggestion of replacing the head unit, you may need to buy the replacement unit.

 

Thank you for the suggestion. For the request to cover the unit under TSB, are you referring to L-TT-0272-19?