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User Manual
A190
1. Technical Specifications
Below given remarks are for reference only
Particular
Key Matrix For Flashing
Chipset
Android Version
Frequency
Network Mode
ROM
RAM
Internal SD Card memory
Expandable Memory
Factory mode code
Remarks
N/A
MT6591
KITKAT 4.4.2
Quad 1.5GHz
GSM850/900/1800/1900
WCDMA 900/2100
8GB
1GB
NO
32GB
*#510838#
L2 Service Manual
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Summary of Contents for Micromax A190
- Page 1 A190 L2 Service Manual 1. Technical Specifications Below given remarks are for reference only Particular Remarks Key Matrix For Flashing Chipset MT6591 Android Version KITKAT 4.4.2 Frequency Quad 1.5GHz GSM850/900/1800/1900 Network Mode WCDMA 900/2100 Internal SD Card memory Expandable Memory...
- Page 2 A190 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.
- Page 3 A190 L2 Service Manual (2) TP&LCD Description Reason Solution assemble Reassemble LCD FPC issue LCD segments missing, Fading, Contrast issue, Black lines, Color issue, Backlight LCD FPC broken Change the LCD issue, Blank display, Bad pixel, Flickering. Mainboard issue Refer to the L3 Repair...
- Page 4 A190 L2 Service Manual Take off the LCD, 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.
- Page 5 A190 L2 Service Manual (4) 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...
- Page 6 A190 L2 Service Manual (6) Main Camera/ Front Camera Description Reason Solution Connection issue Re-connecting Camera ready/not Camera issue Change the camera working/no function Refer to the service guide L3 Front camera can’t Camera issue Change the front camera open Rear camera can’t...
- Page 7 A190 L2 Service Manual (7) Vibrator Description Reason Solution Soldering issue Re-soldering the vibrator Vibrator issue Change the Vibrator No vibrating Refer to the service guide L3 Assemble issue Reassemble the vibrator Vibrator (8) Network&3G – LTE not working Description...
- Page 8 A190 L2 Service Manual (9) WIFI & Bluetooth & GPS Description Reason Solution Wifi/BT antenna stand assembly Reassemble issue No signal Mainboard Refer to the service guide L3 GPS antenna BT/WIFI antenna and the stand and the stand...
- Page 9 A190 L2 Service Manual (10) FM / Radio Description Reason Solution Earphone issue Change a new earphone No signal Earphone Jack of mainboard Refer to the service guide L3 issue Earphone jack...
- Page 10 A190 L2 Service Manual (11) Ear Phone Description Reason Solution Earphone issue Change a new earphone open the housing of MIC, check One side is not working Cable broken and solder the cable CPU or charging IC with issue Refer to the service guide L3...
- Page 11 A190 L2 Service Manual (12) Outgoing Audio /louder speaker Description Reason Solution The SPK with dust Clean the SPK Speaker foam issue Change it Noise/crack Speaker issue Change it Refer to the service guide L3 Connection issue Assembly it again...
- Page 12 A190 L2 Service Manual (14) Receiver 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 No voice/ volume low Receiver issue Change it...