Hi Muz Bar,
I just wanted to thank you for posting the step by step guide on how to fix a faulty digital clock on the Camry. I too had the issue and I was going to check with wreckers for 2nd hand clock to replace it and then just thought of looking at the Camry forum. I followed your steps and the 1st time no luck and then I re-touched those points as you've mentioned and it worked ! I had to buy the soldering iron and a hexagon screw driver (total came to about $30) and a bit of my time.
Thank you again !