Blu LIFE ONE M Скачать руководство пользователя | Manualshive

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24

Chapter 8TROUBLESHOOTING

Cannot power on-current swing instability

YES

NO

NO

YES

YES

NO

YES

NO

NO

NO

NO

Cannot power on-low or no current

26MHZ&32.768KHZ
Check and replace

system clock

：

26MHz

&32.768KHz

Make the phone connect the power supply

and find the current swing at 50-100mA

END

Check the power manage supply

output

：

VCCRE 1.8V
VDD 2.8V
AVDD 2.8V
VTCXO 2.8V
VMEM 2.8V
VRTC 1.2V

Replace U101

MT6589

Upgrade the software

Check and

replace the I/O

connector

Replace or reweld flash

Replace or
reweld
power
manage IC

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Содержание LIFE ONE M

Страница 1: ...1 BLU Life One Service Manual...

Страница 2: ...modules screws and insulators are correctly re fitted after servicing and alignment Ensure all cables and wires are repositioned correctly Electrostatic discharge can easily damage the sensitive compo...

Страница 3: ...with flash Size 144 5 73 9 0mm Battery 2000 mAh USB 2 0 S9111 Main function 5 0 HD 1280 720 Android 4 2 CPU MT 6589 MT 6589 1 2GHz1 2G Quad core 16GB eMMC 8Gb Dual SIM Google Pinyin IME Android keybo...

Страница 4: ...OOLS 1 TP 6 LCD 7 Side key 9 Power key 11 Front host 15 Silica gel 20 Front camera 21 Reciver 27 Main camera 29 SIM TF FPC 33 Back cover 38 AGPS Antenna 39 Battery cover 40 Main Antenna 42 Battery cov...

Страница 5: ...lator Multimeter Iron Hot air gun Solder wire soldering paste Computer and software download cable Metal tweezers Screw driver etc Pick Driver Tweezers Wrist groun ding strap Antistatic gloves SW upDo...

Страница 6: ...SSEMBLY 4 1 DISASSEMBLY Remove battery cover 1 1 Take down the 7 screws 2 Take out the Side key FPC 4 Open the LCD FPC connector 5 Open the back cover 3 Open the TP FPC connector 6 Take out the power...

Страница 7: ...7 Remove the FPC 10 Open the camera by tweezers 11 Remove the camera 12 Remove the PCBA 13 Remove the RF line 14 Remove the three in one connector 9...

Страница 8: ...8 Open the FPC connector 15 Remove the vibrator 16 Remove the small PCBA 17 Heat the TP around use hot air gun 200 degree 18 Remove the TP with sucker 19 Remove the TP 20...

Страница 9: ...9 Finished Paste LCD protect film 22 Take out the LCD with press 23 Remove the LCD 24 Paste the protect for the TP inside 21...

Страница 10: ...10 4 2 ASSEMBLY Remove LCD protect film 4 Remove TP protect film 3 Install the LCD 1 Button the LCD by hand 2 Install the TP 5 Button the TP by hand 6...

Страница 11: ...11 Install the side key 11 Install the silica gel cover for proximity sensor 12 Install the power key 10 Install the vibrator 9 Install the small PCB 7 Install the FPC 8...

Страница 12: ...12 Install the PCB 13 Install the LCD FPC 14 Install the power key FPC 17 Install the FPC 18 Install the TP FPC connector 16 Install the Side key FPC 15...

Страница 13: ...13 Finished Install the three in one connector 19 Install the RF coaxial line 20 Fasten the 7 screws 23 Install the battery cover 24 Install the back cover 22 Install the camera 21...

Страница 14: ...803 U804 WCDMA PA 1201 MIC U401 Power IC MT6320 U801 2G PA SKY775XX J501 Battery Connector U101 CPU MT6589 U708 RF IC MT6167 U601 Flash U901 Four in one IC MT6628 J1402 Three in one Connector J1001 LC...

Страница 15: ...15 Side A layout Side B layout...

Страница 16: ...16 CHAPTER 6 CIRCUIT INSTRUCTION CHAPTER 7 UNIT CIRCUIT PRINCIPLE INTRODUCTION...

Страница 17: ...ARM Cortex A7 MPCore operating up to 1 2GHz an ARM Cortex R4 MCU and a powerful multi standard video accelerator The MT6589 interfaces to NANA flash memory 32 bit mobile DDR or LPDDR2 for optimal per...

Страница 18: ...errupt request USB date communication Charging data transmission Multi media data transmission T card data transmission INT Controller LCD data transmission SIM data transmission Porwer data transmiss...

Страница 19: ...19 Data transmission mailing address...

Страница 20: ...vides the best and most convenient Connectivity functions MT6620 implements advanced and sophisticated Radio antenna for Bluetooth and WLAN 5GHz for WLAN and 1 575GHz for GPS Enhanced overall quality...

Страница 21: ...WCDMA PA IC 4 4 Power management IC MT6320 General Descriptions MT632O is a fully integrated PMIC target for smart phone power provider See Figure 3 1 the block diagram for the whole picture of MT632...

Страница 22: ...nto a single compact package Because of high efficiencies stained throughout the entire power range the SKY7776X delivers unsurpassed talk time advantages The SKY7776X meets the stringent spectral lin...

Страница 23: ...23 SKY7775XX POWER AMPLIFIER MODULE FOR CDMA WCDMA HSDPA HSUPA HSPA LTE DAND...

Страница 24: ...ck and replace system clock 26MHz 32 768KHz Make the phone connect the power supply and find the current swing at 50 100mA END Check the power manage supply output VCCRE 1 8V VDD 2 8V AVDD 2 8V VTCXO...

Страница 25: ...Check and replace I O connector Replace or reweld flash 26MHZ 32 768KHZ Check and replace system clock 26MHz 32 768KHz Check the power manage supply output VCCRE 1 8V VDD 2 8V AVDD 2 8V VTCXO 2 8V VM...

Страница 26: ...eck and replace RF PA Audio PA PM IC Check if the capacitance varistor LDO tube leakage Use the touch method to check and replace the heat spare parts Make the phone connect the power supply and then...

Страница 27: ...touch point if is dropped or dirty Check the keypad if stuck or touch panel do not work to make the phone dead Check the CPU if is rosin joint or damage Check the flash if is rosin joint or damage EN...

Страница 28: ...1th PIN of J901 have signal or not check 38 th digit cable status No display or display abnormality after power on Check LCD connector is OK or not Change LCD FPC Change or re solder U101 MT6589 Check...

Страница 29: ...solve Check the connect status between TP and PCB Re solder or reassemble Change TP Problem solve Check the working status of R803 R805 R808 is Ok or not Re solder or change CPU MT6589 END Do calibrat...

Страница 30: ...U MT6589 may be defective NO Replace SIM card MT6589 may be defective Insert SIM Clean or replace SIM connector Check if all the SIM pins are clean Resolved If SIM card is available Connect Power supp...

Страница 31: ...n Replace the defective components Put a false antenna at RF PA IC to see if there s any signal Replace RF PA IC Make a false antenna at Z602 check if there s any signal Saw filter is damaged replace...

Страница 32: ...the wave signal by oscillograph No sound or noise Remove the speaker and measure with multimeter to see if there s any sound Replace speaker The phone is in Silent mode Check if the volume is in lowe...

Страница 33: ...easure the signal with oscillograph under calling mode Receiver is low Check if J1103 is damaged Resolder clean J1103 Check if the receiver is broken or damaged Test if there s sound from receiver wit...

Страница 34: ...ver Press power on and side button to test mode and activate echo loop measure MIC MK1001 voltage is 1 5V 0 7V Replace MIC ReplaceB1108 or B1109 Check if inductor B1108 B1109 is damaged Replace C1124...

Страница 35: ...eat Check resistor R1313 R1314 be normal Replace or re solder CPU U101 MT6589 Remind error during charge Check charge protective tube be normal Check battery connector testing Pin if the bias resis an...

Страница 36: ...put in check if the voltage of positive pole is around 3 6V Check charge protective tube be normal Replace or re solder CPU MT6589 No charge Does not charge no charge in Change battery Re flash SW Res...

Страница 37: ...gnize charger connected Does not charge does not recognize charging Change battery Re flash SW Resolved NO YES YES YES YES YES Re solder or replace I O connector There is no symbol shows charging Powe...

Страница 38: ...IC FM IC CPU Stand by short time Power on the phone check the if working current be normal no exceed 600mA Defective resolved YES YES YES Check and replace RF PA AUDIO PA PM IC NO NO YES Check if the...

Страница 39: ...slot pin 4 VMC was 2 8V NO Re solder T flash slot NO Check if the voltage of T Flash pin3 pin5 pin7 to the ground was around 0 7V with multimeter diode column Measure if there is pin short for the T...

Страница 40: ...oftware update Check U901 L12 pin have 3 7V B supply voltage or not Check C801 have VBATT V supply voltage or not Replace U901 Check U903 3pin have 37 4MHZ clock signal output or not by oscilloscope O...

Страница 41: ...hen using USB Serial cable The driver needs to be installed before using the USB cable 1 computer eject hardware installation instruction and choose following item and then click next step 2 click bro...

Страница 42: ...42 4 click finished as below Click here...

Страница 43: ...2 Software upgrade 1 Open software upgrading platform SP_Flash_Tool_exe_v2 1129 00 2 Choose USB mode 3 choose Back up restore No action 4 Click Scatter loading to choose file MT6513_Android_scatter t...

Страница 44: ...ADER and DSP BL and then click download then install USB cable and battery to the unit press Home button it begin to show the yellow progress index bar until it finished as below 6 the software is upg...

Страница 45: ...45 7 Finished Description can t power on also upgrade software fail Root cause red scroll 100 run completely when upgrade software the detail as figure 1 also it prove power...

Страница 46: ...ther or not resolding CPU and FLASH or exchange new CPU and FLASH 1 figure 1 Description can t power on handset is dead when upgrade software Details as figure 2 Root cause the power supply and clock...

Страница 47: ...Choose Full test menu to do full test 3 Test relative items one by one a Version check b LCD test c Vibrator d LED test e Main loopback test f Headset loopback g Speaker h Receiver i Camera O FM P Bl...

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