About iPhone 4 Logic Board
When it is necessary to replace internal components within an iPhone 4, it may involve sourcing and installing an iPhone 4 logic board. This is in effect one of the main circuit boards of an iPhone 4, and it acts as a controller for various hardware components within the smartphone. It is often possible to find this type of logic board after it has been removed from a complete phone setup, it may therefore only have limited functionality, and users with the appropriate set of skills will be able to salvage anything that is of use for another handset.
If any iPhone 4 logic board is accompanied by other individual components, it may be possible to find the remaining elements and end up with a fully operational iPhone. The logic board may come with a replacement vibration motor, vibration can often be one of the first features to fail on an iPhone. Screen elements can be used to return a display to full working order, this can be useful for users that have dropped their iPhone, as this is one of the most common iPhone related incidents of accidental damage.
When an iPhone starts to suffer from connection problems over WiFi and regular cellular networks, this may be a sign that there is a problem with the antenna. If a user is able to replace the antenna logic board with a working replacement, the phone should return to its original state. This component is relatively easy to damage when taking the iPhone 4 apart for an unrelated repair.