Resolved- just thought I’d add a note as this happened to me yesterday after a 10 day holiday with my car parked at the airport…. I did 2x resets with the 2x steering wheel buttons and brake pedal pressed whilst sat in the car with the door closed, screens were still completely blank (model x 2019)….. so I didn’t think it had done anything as the screens and car were still blank…. Then after about 5 min the tesla logo appeared just like it would after a reset- the car then sprang back to life and has been fine since. Hope this helps someone stuck in the future 
