replaced the screen problem

I had a cracked screen so I have bought a replacement touchscreen and followed instructions took my asus apart and have replaced this touchscreen successfully. However when I screwed everything back in and inserted all the ribbons and cables came to turn on the device it now won't turn on at all.

I press the power button and the led blinks white and then goes off without the t100 turning back on and booting up. I have therefore opened it back up and trippled checked all the leads to ensure that they are all conected properly which they are and it is still not working.

I therefore ordered a new display screen thinking this was the issue and installed this and it still is'nt working. I will by a new display cable ribbon to see if this is the issue and fixes this feel I am now guessing and this maybe only a simple problem to fix, can anyone help please?

what does a flashing LED light mean?