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Blu VIVO ONE Service Manual
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Blu VIVO ONE Service Manual

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BLU Model: VIVO ONE
VIVO ONE
SERVICE MANUAL – ASSEMBLY/DISASSEMBLY
1

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Summary of Contents for Blu VIVO ONE

  • Page 1 BLU Model: VIVO ONE VIVO ONE SERVICE MANUAL – ASSEMBLY/DISASSEMBLY...
  • Page 2 Chapter 1 EXPLODED VIEW AND COMPONENT DISPOSAL EXPLODED DIAGRAM...
  • Page 3 BLU Model: VIVO ONE Disassembly 1. Use SIM Tray Eject tool to separate Device and SIM tray ，and Remove 2 pcs pentagon screws by screw driver. 2 Remove battery cover.
  • Page 4 BLU Model: VIVO ONE 3. Remove 13 pcs screws by screw driver， screw drive torque： 0.6kgf.cm 4. Separate rear housing from handset by black stick 5 Separate PCB connector with LCM FPC、Battery FPC、Side Key FPC、 fingerprint FPC、front camera.
  • Page 5 BLU Model: VIVO ONE 6. Remove PCBA screw, separate motor and antenna cable connector、back camera 7 .Separate Side Key FPC and Receiver light sensation rubber， in accordance with the direction of the arrow...
  • Page 6 BLU Model: VIVO ONE 8. Remove the Speaker module FPC and Antenna Board 、 Speaker module、sub-board from tweezers 9. Separate battery and LCM FPC, 10. All components...
  • Page 7 BLU Model: VIVO ONE Assembly 1. Apply the UV on front housing by UV machine, Combine front housing and LCM with glue 2. Insatll the maintenance jig and Maintain pressure with 45minsTake apart jigs after the time is over...
  • Page 8 BLU Model: VIVO ONE 3. Install REC and F-Camera Foam、breathe-led-guide、sensor rubber. 4. Install the F-Camera/B-Camera CONN 5. Install the motor、RF cable、side key FPC...
  • Page 9 BLU Model: VIVO ONE 6. Fasten the Screw to fix the MB 7. Paste side key FPC and waterproof label 8. Assemble SPK and SUB...
  • Page 10 BLU Model: VIVO ONE 9. Paste conductive tape and waterproof label 10. Paste SPK- mylar and route the cable and connect conn in the SB 11. Assemble BATTERY Connector on PCB Main, and stick Battery on Bezel case.
  • Page 11 BLU Model: VIVO ONE 12. Process COMBO_ANTENNA_FRAME_ASM 13.Assemble ANTENNA-FRAME-ASM 14. Fasten the 13 pcs screw to combine the B-housing...
  • Page 12 BLU Model: VIVO ONE 15. Paste POAM 16. Paste battery waterproof label and screw seal label 17. Paste fingerprint and assembly battery cover...
  • Page 13 BLU Model: VIVO ONE 18. Insert METAL SIMTRAY to Device ,and Fasten the 2 pcs pentagon screw to combine the battery cover...

  • Page 14: Disassembly And Assembly

    DISASSEMBLY AND ASSEMBLY SERVICE TOOLS...
  • Page 15 Solder wire, soldering paste Wrist grounding strap, Antistatic gloves Metal tweezers, Screw driver, SRT-6 Plates...

  • Page 16: System Block Diagram

    Chapter 2 SYSTEM BLOCK DIAGRAM...

  • Page 17: Instruction Of The Unit Circuit

    Chapter 3 INSTRUCTION OF THE UNIT CIRCUIT Circuit instruction of CPU...
  • Page 24 CPU—input of the keypad...
  • Page 25 The circuit of SIM1&SIM2&T-FLASH...
  • Page 26 EMMC-MCP...
  • Page 27 Bluetooth/WIFI/GPS/FM...

  • Page 28: Power Supply Port

    Power supply port...
  • Page 32 Battery connector...

  • Page 33: Charger Circuit

    Charger Circuit...
  • Page 34 I/O connector...
  • Page 35 RF TX&RX...
  • Page 38 REC&MIC...
  • Page 39 HEADSET REC&MIC...

  • Page 40: Lcd Power

    LCD POWER LCD BACKLIGHT...
  • Page 41 Rear Camera Connector...
  • Page 42 Front Camera Connector...
  • Page 43 Flash LED...
  • Page 44 ALPS&G-SENSOR...
  • Page 45 Finger print...
  • Page 46 Chapter4 PCB Layout chart PCB layout SIDE A...
  • Page 47 PCB layout SIDE B...

  • Page 49: Troubleshooting

    Chapter5 Test flow chart of test SIM card TROUBLE SHOOTING Could not read Clean or Check if points replace of SIM card are socket Replace Check if SIM card SIM card Is invalid Power may be damaged. Connect to the voltage Test if the voltage PIN of regulator and check if the SIM card isn’t 2.8V and...
  • Page 50 Test flowchart of can not power on (main) Cannot power Resolder or Check voltage replace battery of TP502(Vbat) connector is OK Connect to the voltage Replace regulator and verify it battery can be power on Update Check if the current is software to the powering 30-40mA latest version...
  • Page 51 The test flowchart of head phone No sound in headphone Check if there Check if is sound when Speaker has switch to damaged loudspeaker Replace or clean Replace Check if headphone speaker headphone is connect OK Remove headphone and test it by millimeter to Replace headphone check if the connection is ok Check if there is...
  • Page 52 Test flowchart of no display or display abnormally. No display or display abnormal when powered on Check if LCD is Replace broken Check if LCD interface Clean and resolder connects OK LCD connector Replace LCD/FPC Check if enable signals and MIPI signals are normal or not Replace or resolder MT6739...
  • Page 53 The test flowchart of download failed Cannot download Check configuration Check mobile of software, cable, is powered on power, pc etc. Replace or Check if USB interface resolder USB Clean and resolder connects OK connector LCD connector Disconnect cable Connect USB immediately and touch cable and check chip gently to check if...