Comm-complaint

1-Frozen at apple logo

2-Software running very slowly or freezes

3-Loud speaker function grey color

4-Phone can't power on sometimes

5-Home key has respond and SW restore pass.

Problem Found

1-customer drop the phone and cause the Audio chip something wrong under the pin 

so the MSN chip can't vertify the data information from audio chip.

Solutions

1-resoldering the audio chip or replace it