I have tried All of the solutions you posted and am STILL getting Insufficient power. Here is my serial number listed on my account. S.N. YG004N447954
What should I do? How can you fix this??
P.S. It worked just fine for 2 years with this TV (and TV is working just fine, and plugging it into a wall outlet and using original cables, etc. etc. etc. = does NOT work).
Once again - Serial number is: YG004N447954