Micromax A121 User manual

A121 L2 Service Manual

Product introduce

Model ：A121

Product size：146.2*74.2*10.2mm

Platform：MSM8212，1.2GHz Quad

Memory：4GB+1GB (Nand&sdram+RAM）

System：Android

Frequency band: WCDMA：900+2100 ，GSM：850/900/1800/1900

Battery：2000mAh

Charger: Travel charger

USB cable: MICRO 5PIN

Earphone：3.5jack

LCD&TP：5.0HD IPS, resolution: 1280*720，Capacitance TP

Camera：2.0M and 8.0M CMOS

Support：GPS，BT4.0，WIFI，WAPI

Support：3D graphics accelerator，accelerator sensor, distance sensor, light

feeling sensor，Double MIC noise reduction

A121 L2 Service Manual

1. Tools list

Tweezer

Cross screw driver

Solder

Tommy bar

Hot gun

A121 L2 Service Manual

2. Battery cover disassembly

Open the battery cover，as the Fig. 1

3. Back caver disassembly

Unscrew 9 screws in back cover，as the Fig.2

A121 L2 Service Manual

Disassemble back cover with Tommy bar，as the Fig.3

A121 L2 Service Manual

4. Main board and front cover disassembly

The main components of distribution，as the fig.4

A121 L2 Service Manual

Remove 3 screws and open the LCD con. & TP con，remove the volume key

FPC & power key FPC, as the FIG. 5

A121 L2 Service Manual

Open the main board and remove the RF cable con. And main FPC con..as

the FIG.6

A121 L2 Service Manual

5. Camera & light sensor disassembly

Remove the light sensor and Front camera and Back camera，as the fig.7

A121 L2 Service Manual

6. Power key FPC & volume key FPC disassembly

Remove the power key FPC and volume key FPC with the iron，as the fig.8

A121 L2 Service Manual

7. Sub PCBA disassembly

Remove the sub PCBA from the, as the fig.9

Table of contents

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