5 - 30 minutos
Home button didn't work properly anymore and battery only low charged.
It went very well althought it was quite complicated especially because you have to work with really tiny connections and tools.
To connect the new home button was for me the hardest part of the job because the connection is so little the I hardly could handl it.
P2 Pentalobe Screwdriver iPhone
iPhone 4 Replacement Battery
iPhone 4 Home Button Assembly