basic component inside your hand phone

there are 2 partition are running inside ur phone their are:

1. logic board - to run all application needs by user (bottom side)
2. user interface (U.I board) - to generate all command enter by user and display it on the screen menu

basic component:

• speaker- to hear other party voice
• mic- to send ur sound to other party
• buzzer - to play sound, ringing tone and music and hands-free
• keypad board- to enter any keyword
• ui keypad board- usually been use for slide or fold phone (navigate and answering mode key)
• LCD- to display command enter by user
• Ribbon- usually been use for slide or fold phone
• joy stick- to navigate application needs by user
• memory card slot- to read memory card
• sim card slot- to read sim card
• charging port - to charge battery
• battery pin - give power to operate phone
• switch- on/off button, volume button.
• camera- to take picture

if ur phone had problem it might be one or two of these component had been fault, so the esay way is u just change it with a new part. (only applied for first level fault and damage only )