Micromax Q427+ User manual

Q427+ Assembly guide
1：Technical Specifications
Particular
Remarks
Key Matrix For Flashing
NA
Chipset
MT6735P
Android Version
Android 6.0
Frequency
1.3GHz
Network Mode
2G: 850MHz/900MHz/1800MHz/1900MHz
3G: B1 B8
Data Segment
GPRS, EDGE, HSPA+ 21Mbps, FDD-LTE, TDD-LTE
Rom
16G
RAM
2G
Internal SD Card memory
12G
Expandable Memory
64G
Factory mode code
Press vol+/ Vol-/ power key at the same time
Good Earpiece volume
32Ω± 15%
Good Loudspeaker volume
8Ω± 5%
Good Mic volume
2.2kΩ± 5%
Good Vibrator volume
30Ω± 5%

Q427+ Assembly guide
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：Assembly procedure
1、Install the TP/LCD by tweezers..
2、Install the Fingerprint Reader silicone key assembly by tweezers

Q427+ Assembly guide
3、Install the fingerprint keying tray by tweezers
4、Install the PCBA by tweezers.

Q427+ Assembly guide
5、Install the fingerprint FPC by tweezers.
6、Install the vibrator by tweezers.

Q427+ Assembly guide
7、Install the FPC by tweezers.
8、Install the RF coaxial line by tweezers.

Q427+ Assembly guide
9、Install the silicone gel cover for proximity sensor by tweezers.
10、Install the receiver by hands.

Q427+ Assembly guide
11、Install the volume key FPC by hands..
12、Install the front camera by tweezers.

Q427+ Assembly guide
13、Install the camera by tweezers.
14、Install the PCBA by tweezers.

Q427+ Assembly guide
15、Fasten the screw by screw drive..
16、Install the FPC connector by tweezers.

Q427+ Assembly guide
17、Stick the battery tape by tweezers.
18、Install the battery by hand..