My Problem

Replace fan on Mac Mini + front & back display on iPhone 4.

My Fix

Received part and tools from iFixit 2 days after placing order.

Replacing fan on Mac Mini:

No-brainer and no problems. Time spent: 15 min.

Replacing displays on iPhone4:

Went like at dream thanks to the perfect guides from iFixit. Time spent: 1h30min.

My Advice

Probably more idiots like me out there who doesn't read the full instruction before starting the work -> Keeping track of all the disassembled part was the biggest challenge.

What I did: Used a dinner plate, tape and marker for parts described in each step.

What I should have done: Print out the readymade sheet provided by iFixit...