Micromax A064 User manual

A064 L2 Service Manual
1. Technical Specifications
Particular
Remarks
Key Matrix For Flashing
NA
Chipset
MT6571A/E
Android Version
Android 4.4.2
Frequency
1.3Ghz
Network Mode
GSM900/1800
ROM
4G
RAM
512M
Internal SD Card memory
10.95G
Expandable Memory
up to 32G
Factory mode code
*#*#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
Reason
Solution
1
Doesn’t Power On
Soldering issue of side key FPC.
Re-soldering side key FPC.
Side key broken
Change a new sidekey
Mainboard issue
Refer to the L3 Repair
Check if the sidekey is
broken and solder issue.

A064 L2 Service Manual
(2) LCD
NO.
Description
Reason
Solution
1
LCD segments missing, Fading, Contrast
issue, Black lines, Color issue, Backlight
issue, Blank display, Bad pixel,
Flickering.
LCD FPC assemble issue
Reassemble LCD FPC
LCD FPC broken
Change the LCD
Mainboard issue
Refer to the L3 Repair
SW
RE-FLASH THE SW
2
LCD
Mechanically broken
LCD issue
Change the LCD
LCD broken
Change the LCD

A064 L2 Service Manual
(3) Touchpad
NO.
Description
Reason
Solution
1
TP not working and the light
perception issue.
FPC assembly
Reassemble the FPC
FPC broken
Change the TP
Mainboard
Refer to the L3 Repair
The light perception issue.
Change the TP
2
TP Mechanically broken
TP issue
Change the TP
TP broken
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
Reason
Solution
1
No charging
Data cable issue
Change the data cable
I/O connector
Change the I/O connector
Charger issue
Change the charger
CPU
Refer to the service guide L3
2
Charging slow
Data cable issue
Change the data cable
I/O connector
Change the I/O connector
CPU
<VCHG is poor soldering>
Refer to the service guide L3

A064 L2 Service Manual
(5) USB
NO.
Description
Reason
Solution
1
No charging
Data cable issue
Change the data cable
I/O connector
Change the I/O connector
Charger issue
Change the charger
CPU
Refer to the service guide L3
2
Cannot use DATA
D+ or D- is broken
Change the data cable

A064 L2 Service Manual
(6) Main Camera/Front Camera
NO.
Description
Reason
Solution
1
Camera not ready/not
working/no function
Connection issue
Re-connecting
Camera issue
Change the camera
CPU
Refer to the service guide L3
2
Front camera can’t
open
Camera issue
Change the front camera
3
Rear camera can’t open
Camera issue
Change the front camera
4
Bad image
Assemble issue
Reassemble the camera
Camera issue
Change the camera
CPU
Refer to the service guide L3
Rear camera
Front camera

A064 L2 Service Manual
(7) Vibrator
NO.
Description
Reason
Solution
1
No vibrating
Soldering issue
Re-soldering the vibrator
Vibrator issue
Change the Vibrator
CPU
Refer to the service guide L3
Assemble issue
Reassemble the vibrator
Vibrator

A064 L2 Service Manual
(8) Network and 3G –LTE not working
NO.
Description
Reason
Solution
1
No signal
The coaxial cable assembly issue
Reassemble
GSM antenna assembly issue
Reassemble
SIM card broken
Change a new SIM card
RF IC issue
Refer to the service guide L3
Have not calibration
Re-calibrate
CPU
Refer to the service guide L3
GSM antenna

A064 L2 Service Manual
(9) WI-FI & Bluetooth
NO.
Description
Reason
Solution
1
No signal
Wifi/BT antenna stand assembly
issue
Reassemble
Mainboard
Refer to the service guide L3
(10) FM / Radio
NO.
Description
Reason
Solution
1
No signal
Earphone issue
Change a new earphone
Earphone Jack of mainboard issue
Refer to the service guide L3
WIFI/BT
antenna
GPS antenna
Earphone Jack