Micromax Q427+ Installation instructions

Q427+ Disassembly 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+ Disassembly 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、Remove the Battery cover by hands.

Q427+ Disassembly guide

2、Tear off the IMEI label by hand.

3、Unscrew the screws by screw driver.

Q427+ Disassembly guide

4、Unmount the back cover by pick.

5、Take out the LCD/TP/Main/volume key FPC connector by tweezers.

Q427+ Disassembly guide

6、Unscrew the screw by screw drive.

7、Unmount Main PCBAby hands.

Q427+ Disassembly guide

8、Unmount the RF coaxial line by tweezers.

9、Remove the main camera by tweezers.

Q427+ Disassembly guide

10、Remove the receiver by tweezers.

11、Remove silicone gel cover for proximity sensor by tweezers.

Q427+ Disassembly guide

12、Remove the battery tape by tweezers.

13、Remove the battery by hands.

Q427+ Disassembly guide

14、Remove the volume key FPC by tweezers.

15、Remove the RF coaxial line by tweezers.

Q427+ Disassembly guide

16、Remove the main FPC by tweezers.

17、Remove the fingerprint FPC by tweezers.

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