X249 L3 Service Manual
1
1.
Technical Specifications :
Please fill below information in Remarks, Below given remarks are for
reference only
Particular
Remarks
Key Matrix For Flashing
N/A
Chipset
MT6260M
Android Version
N/A
Frequency
360Mhz
Network Mode
GSM 900/1800
ROM
24Mb
RAM
32Mb
Internal SD Card memory
NO
Expandable Memory
32GB
Factory mode code
*#510838#
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.
Summary of Contents for X249
Page 10: ...X249 L3 Service Manual 2 1 1 BBIC Diagrams Application Diagram of MT6260 ...
Page 11: ...X249 L3 Service Manual 2 2 Power Management Diagrams ...
Page 16: ...X249 L3 Service Manual SIM CIRCUIT T Flash circuit m BBIC SIM1 rom BBIC T card From BBIC SIM2 ...
Page 18: ...X249 L3 Service Manual MIC circuit To BBIC From MIC ...
Page 19: ...X249 L3 Service Manual 3 1 5 Speaker troubleshooting Speaker circuit FROM BBIC To Speaker ...
Page 20: ...X249 L3 Service Manual Troubleshooting flow chart Main related component BBIC U201 SPEAKER ...
Page 22: ...X249 L3 Service Manual Earpiece circuit To earpiece FROM BBIC ...
Page 24: ...X249 L3 Service Manual Vibra circuit To VIB ...
Page 26: ...X249 L3 Service Manual Camera circuit From BBIC ...
Page 28: ...X249 L3 Service Manual FM Circuit From earphone HEADGND ANT IN ...
Page 30: ...X249 L3 Service Manual Display Circuit ...
Page 32: ...X249 L3 Service Manual 3 1 12 Side health Troubleshooting Keyboard circuit ...
Page 35: ...X249 L3 Service Manual Battery charge circuit Charge control Charge 5V in ...
Page 38: ...X249 L3 Service Manual RF Circuit RF PA circuit TX RX ...
Page 39: ...X249 L3 Service Manual 4 Main Element Specifications 4 1 Baseband part 4 1 1 BBIC U201 ...
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Page 47: ...X249 L3 Service Manual 4 2 RF part 4 2 1 RF PA U102 ...
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Page 50: ...X249 L3 Service Manual 6 Glossary ...
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