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Blu C5 Service Manual
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Blu C5 Service Manual

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C5 Service Manual
No.20160406

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Summary of Contents for Blu C5

  • Page 1 C5 Service Manual No.20160406...

  • Page 2: Product View

    Chart 1.Product introduction This manual provides the technical information to support the service activity of this products This document contains highly confidential information, so any or all of this document should not be revealed to any third party. 1.1 Product view...
  • Page 3 Charter 3 Explode view and Part list 3.1Explode view...
  • Page 4 Charter 4 Repair tool Picture Hot Air Gun Soldering Iron Tin Solder Wire ESD Gloves ESD Wrist Strap Name Picture Plastic stick Plastic Opening Cotton Swabs Alcohol Sim Card Name Card Needle Picture Multimeter DC Power supply Soldering station Tweezers Screw Drivers Name...

  • Page 5: Disassembling Procedure

    Chart 5 Disassembling procedure and Assembling procedure 5.1 Disassembling procedure NO. Operation Picture Operation and note name Remove Battery Cover & Battery Remove 13 Screws on the Middle Cover...
  • Page 6 5.1 Disassembling procedure NO. Operation Picture Operation and note name Remove Middle Cover Remove RF Cable & Side-Key Remove Front Camera & LCD...
  • Page 7 5.1 Disassembling procedure NO. Operation Picture Operation and note name Remove TP & VIB Remove PCB, and Remove Rear Camera...
  • Page 8 5.1 Disassembling procedure NO. Operation Picture name All Components...

  • Page 9: Assembling Procedure

    5.2 Assembling procedure NO. Operation Picture Operation and note name Assemble Rear Camera ,PCBA and Vibrator Assemble TP, FrontCamera,Side- key,RF Cable, LCD FPC.
  • Page 10 5.2 Assembling procedure NO. Operation Picture Operation and note name Assemble Middle Cover Assemble Battery & Battery Cover...
  • Page 11 Charter 6 Main boards layout...
  • Page 12 Charter 6 Main boards layout BOTTOM...
  • Page 13 Chart 7 Mobile fault analysis for L2 Upgrade to FAIL latest software Check if Seek help Start Or Restore Assembly has a factory setting problem OVER Reassemble Doesn’t switch on Upgrade to latest Check if Start Replace Main PWB Software, check if power key the issue have is ok...
  • Page 14 No signal Upgrade to latest Check if the main Start Replace Main PWB software, check if antenna and Check if coaxial line the issue have Antenna shrapnel is is ok been solved damaged If line connector Replace a new one opened, reconnect OVER it.
  • Page 15 No camera problem Over Update software or Check if reset to factory, Replace Main PCBA Check if the camera Connector is check if the issue is is damaged damaged solved Front camera doesn’t work Replace a Main camera Change J2 Start doesn’t work or new one...
  • Page 16 Keypad issue Update latest software Replace the Dome Start Check if the Keypad Replace Main PWB version, check if the issue is sheet or replace the is damaged solved keypad Replace Keypad Over OVER Not recognize SIM/TF card Update latest software version, Check if SIM Start Replace Main PWB...
  • Page 17 GPS/BT/Wi_Fi issue Update latest software Replace Main PWB Start Check if antenna and its version, check if the issue is contact is damaged solved Change Antenna shrapnel OVER No ringtone Update latest software Replace Main PWB Start Check if Speaker Cover version, check if the issue is is damaged solved...
  • Page 18 Outgoing audio issue Update latest software Start Check if SPK is version, check if the issue is damaged solved Replace OVER Replace Main PWB Incoming audio issue Update latest software Replace Main PWB Start Check if Mic is damaged version, check if the issue is solved Replace OVER...

  • Page 19: Doesn't Switch On

    Doesn’t switch on Upgrade to latest Test if power-on Check if Check Start Software, check if current is power key the issue have the power abnormal is ok been solved sequence If the current is higher than Replace OVER normal, check power key the hotter components,...
  • Page 20 No Display &Display failure Check the follow option: Check if Start Check if it is 1.Check software version is latest LCD is properly power issue 2.Check if LCD is defective soldered Go to power Chang LCD OVER issue /PWB Resolder LCD...

  • Page 21: Front Camera

    No camera problem Upgrade to latest Check if Start Software, check if Check if the camera the camera is the issue have is damaged soldered well been solved Over Replace a Change Camera new one or PWB Resolder Camera Front Camera Rear Camera...
  • Page 22 Keypad issue Upgrade to latest Check if Start Check if Key pad is Software, check if the issue Dome Sheet is damaged have been solved damaged Replace Keypad Replace OVER Replace Main PCBA Reassemble the Dome Sheet Change CPU...
  • Page 23 Not recognize SIM Card/TF card Upgrade to latest Check if SIM/ TF Start Software, check if the issue Connector is have been solved damaged Change SIM/TF OVER FPC Connector Replace Main PWB Check if SDA,SCLK is defective Change CPU...
  • Page 24 BT/WIFI/GPS failure Upgrade to latest Start Check if antenna or its Software, check if the issue contact is damaged have been solved Change Antenna OVER Replace Main PWB Check if CPU is Check if U601 /U602 damaged is normal Change Change CPU U601/U602...
  • Page 25 No ringtone Upgrade to latest Check if Speaker and Start Software, check if the issue shrapnel is damaged have been solved Change speaker or shrapnel OVER Replace Check if the signal Check if CPU is Main PWB line of spk_p and damaged spk_n is normal Change CPU...