MOBILE PHONE REPAIRING TIPS

1.Dead - solutions

A) check shorting using multi meter.
    1)  if there is shorting then the problem is in hardware parts,so clean the board using cleaning liquid and make dry using blower.If still  the problem remains find out the shoring part and clear it.
    2) if there is not shorting check the booting of the phone  .If booting is ok then flash it,if booting is not ok then check the hardware part and clear it.

2.Audio related faults

 (a) speaker related faults
   following are the speaker related faults
  * no speaker sound
  * low speaker sound
  * noisy speaker sound
 
   solutions
 1.check the menu of the phone,if there is any changes ,correct it
 2.check the speaker and correct it
 3.check the speaker pad and correct it
 4.check the speaker way and clear it
 5.check the parts on the speaker way and clear it

 (b) mic related faults

    following  are the mic related faults
 *  no outgoing audio
 *  low outgoing audio
 *  noisy outgoing audio

   solutions

  1.check the mic and correct it
  2.check the mic pad and correct it
  3.check the mic way and correct it
  4.check the parts on the mic way and correct it

  (c) buzzer related faults

       following  are the buzzer related fault
   * no ringing sound
   * low ringing sound
   * noisy ringing sound

      solutions
   1.check the menu first,if there is any changes,correct it
   2.check the buzer and correct it
   3.check the buzer pad and correct it
   4.check the buzer way and correct it
   5.check the parts on the buzer way and clear it
3) charging related faults

 (a) when charger connected there is no response

      solutions

• check charging socket
• check connection to the board
• check charging pad
• check charging way
• check parts on the charging way
• check charging IC
• check battery and connector

     (b) charging indication shows but battery is empty

       solutions

• check charging socket
• check connection to the board
• check charging pad
• check charging way
• check parts on the charging way
• check charging IC
• check battery and connector

     (c) on charging ,charger become overheat

        solutions
     

• check charging socket
• check connection to the board
• check charging pad
• check charging way
• check parts on the charging way
• check charging IC
• check battery and connector

Posted in: Nokia