ThatCameraGuy tested the new 1.01 A9 firmware. And as suspected it doesn’t fix the overheating itself. But it delays the overheating indicator warning time so that it doesn’t appear 10 minutes before the actual shutdown. Note that nearly 99% of people will not keep the camera all time on a 90 Degree Fahrenheit (32 Degree Celsius) hot day under direct sunlight and always on. Moreover even if you do it you will not let the camera standing alone. But you will cover it somehow with your hands while operating the camera, and also make some shadow with your body. Also note that it seems like having the battery grip completely solves the problem!
Sony has still not re-published the new firmware on their support site.
One more overheating test with new firmware by Ron Simon:
The Angry Photographer also tested the A9 overheating problem. He got no issue at all:
Sony A9 at BHphoto, Adorama, Amazon, BestBuy. FocusCamera. Calumet.de. Park UK. Wex UK. Jessops.
Sony A9 with Grip Extension Kit at BHphoto, Adorama and Amazon.
Note: US readers preordering the A9 at BHphoto or Adorama using our links (and our affiliated links only!) have a chance to win a Sony A9.
And the fastest SD cards are now in Stock:
Sony SF-G 128GB: BHphoto, Adorama, Amazon. In EU: AmazonDE, AmazonUK, AmazonFR, AmazonIT, AmazonES.
Sony SF-G 64GB: BHphoto, Adorama, Amazon. In EU: AmazonDE, AmazonUK, AmazonFR, AmazonIT, AmazonES.
Sony SF-G 32GB: BHphoto, Adorama, Amazon.
The new Sony FE lenses preorders:
16-35mm GM at Bhphoto, Adorama, BestBuy, Focus and Amazon. In EU at Calumet DE, WexUK, Jessops.
12-24mm G at Bhphoto, Adorama, BestBuy, Focus and Amazon. In EU at Calumet DE, WexUK, Jessops.
Sony 100-400mm GM at BHphoto, Amazon, Adorama, BestBuy. Calumet.de. Park UK. Wex UK. Jessops.