The correct diagnosis of mobile cell phone faults is the key to successful and cost effective repair of the phone. Let us start by looking at the skills that you need to have to be able to diagnose and repair a mobile phone.
Skills Needed to Diagnose and Repair a Mobile Phone
Before you can diagnose and repair a phone, there are some skills that you need to learn. These skills are:
 Soldering
 Desoldering
 Testing using a multimeter
 Jumper setting
Let us briefly discuss each skill in turn.
Soldering
Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal into the joint. The filler metal has a relatively lower melting point.