|LCD / Inner Screen||£40|
|Speaker / Ringer||£30|
For the bottom microphone repair, the iPhone 4 actually has two microphones, one is used for noise cancellation and is located at the top of the handset, the main microphone is located at the bottom protected by a mesh grill, if the other person can't hear you we can replace your microphone in minutes, because the microphone is attached to the charging port we will also replace all adjoining parts.
After the replacement the other caller should be able to hear you loud and clear. As part of the repair you will also get an internal clean and a new rubber dust guard to protect your microphone from contaminants.