OK, I formatted the SD card, then I used the downloaded .img.gz from 20170801, extracted the .img file and then burned that to the SD card. I did not remove or add any files to the card. Then I put the SD card into the box, used the toothpick method and nothing happened after 60 seconds. When I removed the toothpick the GoogleTV image comes up, then disappears after maybe 10 seconds and the 120 second/ automatic repair message appears on the top left of the box.
When I remove the card and boot the box goes into Android successfully.
I have attached a snip of the files that are on the card.
Note that I did use the update&backup app to install the aml_autoscript files prior to trying your method.
Thanks for your help.
Try a USB stick as every time i get the 120 seconds message it will only work on USB and not SD card