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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