Problem : Handphone can not use calling although there is signal indicator.
Repair Procedure :

• Investigating menu 'Call setting' and 'Phone setting'. Has setting true?
• If setting true, So we continue with investigate stripe to IC PA.
• If stripe to IC PA is good, test IC what still functioned well, if not change the IC PA.
• If PA's IC has been replaced but still can't calling, try looks for network by manual, if handphone sometimes can look for but Sometimes not, heat IC RF (HAGAR), if there is no change so change IC RF (HAGAR).
• Re-flash the handphone