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A109
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
MT6589
Android 4.4
GSM：900/1800/1900MHz UMTS：900/2100MHz
Dual SIM: WCDMA+GSM
4 GB
1 GB
No less than 1.4GB
32GB
*#9527*#
L2 Service Manual
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Summary of Contents for Micromax A109
- Page 1 A109 L2 Service Manual 1. Technical Specifications : Particular Remarks Key Matrix For Flashing Chipset MT6589 Android Version Android 4.4 Frequency GSM：900/1800/1900MHz UMTS：900/2100MHz Network Mode Dual SIM: WCDMA+GSM 4 GB 1 GB Internal SD Card memory No less than 1.4GB...
- Page 2 A109 L2 Service Manual 2. CAUTIONS Flashing & Servicing must be undertaken by qualified personnel only. 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.
- Page 3 A109 L2 Service Manual 2) Restart / Hang Description Reason Solution Replace battery & check Battery malfunction Restart / Hang Software corrupt Update Software Check battery Connector Clean & Change If required MB issue Refer to L3 service manual Replace battery...
- Page 4 A109 L2 Service Manual 3) LCD Issue NO Description Reason Solution Exchange the front shell module to Problem in the LCD judge if the LCD is OK Damage of the LCD Replace the LCD connector connector Soldering abnormality or damage of the diode...
- Page 5 A109 L2 Service Manual 4) Touchpad Issue NO Description Reason Solution Exchange the front shell module to Problem of the TP judge if the TP is OK Damage of the TP connector Replace the TP connector Malfunction of touch Pseudo soldering or damage of...
- Page 6 A109 L2 Service Manual 5) Proximity Sensor Description Reason Solution MB is broken Refer to L3 service manual Proximity Sensor is Proximity Sensor is not Change the Sensor not well well TP is broken Change the LCM 6) Accelerometer Description...
- Page 7 A109 L2 Service Manual 8) Charging Description Reason Solution Data cable issue Change the data cable I/O connector Change the I/O connector No charging Charger issue Change the charger Refer to the service guide L3 Data cable issue Change the data cable...
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Page 8: Data Cable
A109 L2 Service Manual 9) USB Description Reason Solution CABLE ISSUE Change it CHARGER ISSUE Change it NO CHARGING The I/O connector of PCBA is Change the I/O connector with issue Refer to the service guide L3 Cannot use DATA... - Page 9 A109 L2 Service Manual 10) Front Camera Description Reason Solution Soldering issue Re-solder it Bad image Camera issue Change it Refer to the service guide L3 Soldering issue Re-solder it Camera not ready Camera issue Change it Refer to the service guide L3...
- Page 10 A109 L2 Service Manual 11) Back Camera Same as Front Camera 12) Flash Light Description Reason Solution G-sensor doesn't work MB is broken Refer to L3 service manual 13) Vibrator Description Reason Solution The main FPC is not Reinstall it properly installed.
- Page 11 A109 L2 Service Manual 14) Sim Related Issues / Network Description Reason Solution the connection of antenna is not Assembly it again good SIM issue use a fresh SIM to verify it SIM slot issue Refer to the service guide L3...
- Page 12 A109 L2 Service Manual 17) FM / Radio Description Reason Solution Earphone issue Change a new earphone No signal Earphone Jack of mainboard issue Refer to L3 service manual 18) Heating Description Reason Solution Battery issue Change a new battery...
- Page 13 A109 L2 Service Manual Ear Phone NO Description Reason Solution earphone issue change the earphone Cable broken open the housing of MIC, check and solder the cable ONE SIDE IS NOT WORKING I/O connector Issue Replace I/O connector CPU or charging IC with...
- Page 14 A109 L2 Service Manual 20) Outgoing Audio / MIC Description Reason Solution There is dust with MIC Clean the MIC Solder issue Re-solder it MIC issue Change the MIC Noise with uplink side main LINK Reassemble the Link FPC assembly issue...
- Page 15 A109 L2 Service Manual 21) Incoming Audio / Earpiece & Speaker & Vibrator Description Reason Solution There is dust with receiver Clean the receiver Noise/crack Receiver issue Change it Refer to the service guide L3 Connection issue Assembly it again...
- Page 16 A109 L2 Service Manual 22) Speaker NO Description Reason Solution The SPK with dust Clean the SPK SPK foam issue Change it Noise/crack SPK issue Change it Refer to the service guide L3 Soldering issue Re-soldering it No volume SPK issue...
- Page 17 A109 L2 Service Manual 23) Memory Card Description Reason Solution SD card corrupted Change a new SD card SD Card Issue SD card slot issue Clean SD card Connector , Replace IF required Still not working Refer to L3 service manual...