Should be very simple fix. The hardest part is the screen coming off. I managed to damage the screen a little during the applying pressure phase.... Definitely try not to apply pressure on a particular point on the screen. TAKE ALL THE TIME. If you rush this you will f-up something.

Pointers -

1. No need to take the screen off completely can perform with screen attached easily.

2. Skip step 9 completely.

3. Definitely be careful of screws, short circuiting.

4. CAREFUL WITH THE SCREEN!

Easy fix but needs 30 mins.