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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Micromax Q427+ User manual
