Download A064 L2 Service Manual
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A064 L2 Service Manual 1. Technical Specifications Particular Key Matrix For Flashing Chipset Android Version Frequency Network Mode ROM RAM Internal SD Card memory Expandable Memory Factory mode code Remarks NA MT6571A/E Android 4.4.2 1.3Ghz GSM900/1800 4G 512M 10.95G up to 32G *#*#3646633#*#* A064 L2 Service Manual 2. CAUTIONS I. Flashing & Servicing must be undertaken by qualified personnel only. II. Ensure all work is carried out at an anti-static workstation and that an anti-static wrist strap is worn. III. Use only approved Tools & components as specified in the parts list. IV. Ensure all components, modules, screws, and insulators are correctly re-fitted after servicing and alignment. V. Ensure all cables and wires are repositioned correctly if Handset disassembled. VI. Electrostatic discharge can easily damage the sensitive components of electronic products. Therefore, Service Centre must adhere the precautions which mentioned above. 3. L2 Level Trouble Shooting (1) Doesn’t Power On NO. Description 1 Doesn’t Power On Reason Soldering issue of side key FPC. Side key broken Mainboard issue Solution Re-soldering side key FPC. Change a new sidekey Refer to the L3 Repair Check if the sidekey is broken and solder issue. A064 L2 Service Manual (2) LCD NO. 1 2 Description LCD segments missing, Fading, Contrast issue, Black lines, Color issue, Backlight issue, Blank display, Bad pixel, Flickering. LCD Mechanically broken Reason LCD FPC assemble issue LCD FPC broken Mainboard issue SW LCD issue LCD broken Solution Reassemble LCD FPC Change the LCD Refer to the L3 Repair RE-FLASH THE SW Change the LCD Change the LCD A064 L2 Service Manual (3) Touchpad NO. Description 1 TP not working and the light perception issue. 2 TP Mechanically broken Reason FPC assembly FPC broken Mainboard The light perception issue. TP issue TP broken Solution Reassemble the FPC Change the TP Refer to the L3 Repair Change the TP Change the TP Change the TP Take off the TP, and then check and test if it is working normally use the jig and fixture . Test the mainboard if it is OK by the PCBA jig and fixture. A064 L2 Service Manual (4) Charging NO. Description 1 No charging 2 Charging slow Reason Data cable issue I/O connector Charger issue CPU Data cable issue I/O connector CPU <VCHG is poor soldering> Solution Change the data cable Change the I/O connector Change the charger Refer to the service guide L3 Change the data cable Change the I/O connector Refer to the service guide L3 A064 L2 Service Manual (5) USB NO. Description 1 No charging 2 Cannot use DATA Reason Data cable issue I/O connector Charger issue CPU D+ or D- is broken Solution Change the data cable Change the I/O connector Change the charger Refer to the service guide L3 Change the data cable A064 L2 Service Manual (6) Main Camera/Front Camera NO. 1 2 3 4 Description Reason Connection issue Camera not ready/not Camera issue working/no function CPU Front camera can’t Camera issue open Rear camera can’t open Camera issue Assemble issue Camera issue Bad image CPU Solution Re-connecting Change the camera Refer to the service guide L3 Change the front camera Change the front camera Reassemble the camera Change the camera Refer to the service guide L3 Rear camera Front camera A064 L2 Service Manual (7) Vibrator NO. Description 1 No vibrating Reason Soldering issue Vibrator issue CPU Assemble issue Solution Re-soldering the vibrator Change the Vibrator Refer to the service guide L3 Reassemble the vibrator Vibrator A064 L2 Service Manual (8) Network and 3G – LTE not working NO. Description 1 No signal Reason The coaxial cable assembly issue GSM antenna assembly issue SIM card broken RF IC issue Have not calibration CPU Solution Reassemble Reassemble Change a new SIM card Refer to the service guide L3 Re-calibrate Refer to the service guide L3 GSM antenna A064 L2 Service Manual (9) WI-FI & Bluetooth NO. Description 1 No signal Reason Solution Wifi/BT antenna stand assembly Reassemble issue Mainboard Refer to the service guide L3 GPS antenna WIFI/BT antenna (10) FM / Radio NO. Description 1 No signal Reason Earphone issue Earphone Jack of mainboard issue Solution Change a new earphone Refer to the service guide L3 Earphone Jack A064 L2 Service Manual (11) Ear Phone NO. Description 1 ONE SIDE WORKING IS NOT Reason earphone issue Cable broken CPU or charging IC with issue 2 Noise Cable broken MIC issue 3 MIC is not working 4 Can’t end the call by Assembly issue earphone Cable broken Solution Change a new earphone Open the housing of MIC, check and solder the cable Refer to the service guide L3 Open the housing of MIC, check and solder the cable Change the earphone Open the housing of MIC, check and solder the cable Open the MIC housing ,check and assembly again Earphone A064 L2 Service Manual (12) Outgoing Audio /louder speaker No. Description 1 Noise/crack 2 No volume/low volume Reason The SPK with dust Speaker foam issue Speaker issue CPU Connection issue Louder speaker issue CPU Solution Clean the SPK Change it Change it Refer to the service guide L3 Assembly it again Change it Refer to the service guide L3 speaker A064 L2 Service Manual (13) Incoming Audio /MIC NO. 1 2 3 Description Reason There is dust with MIC Solder issue Noise with uplink side MIC issue The main LINK FPC assembly issue CPU or related component There is dust with MIC Solder issue Volume low/no volume MIC issue with uplink side The main LINK FPC assembly issue CPU or related component TDD noise MIC issue Solution Clean the MIC Re-solder it Change the MIC Reassemble the Link FPC Refer to the service guide L3 Clean the MIC Re-solder it Change the MIC Reassemble the Link FPC Refer to the service guide L3 Change the MIC A064 L2 Service Manual (14) Receiver NO. Description 1 Noise/crack 2 No voice/ volume low Reason There is dust with receiver Receiver issue CPU Connection issue Receiver issue CPU Solution Clean the receiver Change it Refer to the service guide L3 Assembly it again Change it Refer to the service guide L3 Receiver Thanks For any Query or suggestion, Please write to [email protected]