100% practical tips

100% Practical Mobile Reparing Tips

If mobile doesn't switch on then


  • 1.Check battery.
  • 2.Try with the charger.
  • 3.Check Battery Connector.
  • 4.Check Shorting in FEM, UEM, Backlignt IC, Audio Amplifier IC.
  • 5.Check power on/off button.
  • 6.26 MHZ crystal, CPU, Memory, Power IC
  • 7.While flashing Ist boot error and IInd boot error shows then UEM is faulty.
Low Netowork
  • 1. Check PFO, Antina Switch and FEM IC
  • 2. Check Antina and its contact points.
Network Provoiders List Doesn't show while manual search
  • Check PFO, Antina Switch and FEM IC
Network is ok but can't call
  • Check CPU and RF IC
In Manual Network Search, NO Access Fault
  • Check/Change Antina Switch or FEM IC
No charging
  • Check Charger, Charging Socket, Charging Fuse, Charging Coil, Diode, Charging IC
Not Charging, Charger is plugged
  • Check charging protection register, charging IC
No Display
  • Display, Display IC, Display Connector Check/Change
Buttons of the keypad are automatically working
  • Clearn the keypad, Check/Change keypad IC
Insert SIM Fault
  • Check SIM Socket, SIM IC, Clean Battery point carbon, Change/Check the battery, SIM socket, Battery Connector
Ringer is not working
  • For this check ringer and it's jumper, also check logic IC and Audio Amplifier IC
Vibrator is continuous on
  • For this check /change UEM IC
There is no backlight on
  • For this check LEDs, Display connector, Display cable & Backlight IC.
Hands free is not working
  • Check handsfree socket and UEM IC
Location: Kothagudem, Khammam, Telangana 507101, India

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