Micromax X249 Service Manual
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Micromax X249 Service Manual

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X249
1. Technical Specifications
Below given remarks are for reference only.
Particular
Key Matrix For Flashing
Chipset
Android Version
Frequency
Network Mode
ROM
RAM
Internal SD Card memory
Expandable Memory
Factory mode code
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.
All manuals and user guides at all-guides.com
Remarks
N/A
MT6260D
N/A
360Mhz
GSM 900/1800
24Mb
32Mb
NO
32GB
*#510838#
L2 Service Manual

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  • Page 1 All manuals and user guides at all-guides.com X249 L2 Service Manual 1. Technical Specifications Below given remarks are for reference only. Particular Remarks Key Matrix For Flashing Chipset MT6260D Android Version Frequency 360Mhz Network Mode GSM 900/1800 24Mb 32Mb Internal SD Card memory...
  • Page 2 All manuals and user guides at all-guides.com X249 L2 Service Manual 3. L2 Level trouble shooting 3.1 Structural Parts Fault 3.2 Fail to Start Up 3.3 No Ringtone 3.4 LCD Abnormal Display 3.5 Charging Abnormal 3.6 Fail to Identify SIM 3.7 No Echo, Fail to Record (But There Has Ring Tone)
  • Page 3 All manuals and user guides at all-guides.com X249 L2 Service Manual 3.1 Structural Parts Fault Replace structural parts by referring to mobile phone disassembly steps. 3.2 Fail to Start Up fail to start up check battery installed correctly re-install & recharge &...
  • Page 4 All manuals and user guides at all-guides.com X249 L2 Service Manual 3.3 No Ringtone no ring tone heck solder of speaker is repair welding of speaker replace speaker replace speaker amend the mainboard referring to check if the speaker its repair instructions...
  • Page 5 All manuals and user guides at all-guides.com X249 L2 Service Manual 3.4 LCD Abnormal Display LCD abnormal display check if the LED is damaged replace LCD check if LCD’s welding weld LCD and TP’s welding parts part is pseudo welding...

  • Page 6: Charging Fault

    All manuals and user guides at all-guides.com X249 L2 Service Manual 3.5 Charging Fault charging fault check again by replacing battery replace battery or charger or charger check if the battery and charger weld connector connector is soldering or missing...

  • Page 7: Fail To Identify Sim Card

    All manuals and user guides at all-guides.com X249 L2 Service Manual 3.6 Fail to Identify SIM Card fail to identify SIM card check the connective way of replace SIM card SIM card or replace SIM card check if SIM weld SIM connector...
  • Page 8 All manuals and user guides at all-guides.com X249 L2 Service Manual 3.7 No Echo, Fail to Record (But There Has Ringtone) no echo, fail to record (but there has ring tone) check MIC for soldering solder or replace MIC defect...

  • Page 9: Keypad Fault

    All manuals and user guides at all-guides.com X249 L2 Service Manual 3.8 Keypad Fault keypad Fault check if the keypad is reassemble the keypad assembled correctly re-paste the DOME check DOME is pasted correctly Is structural parts related to amend the related structural parts...

  • Page 10: Receiver Fault

    All manuals and user guides at all-guides.com X249 L2 Service Manual 3.9 Receiver Fault no voice in receiver check if receiver is pseudo weld the pseudo-welding part welding replace the receiver replace receiver repair the mainboard by referring to check the periphery circuit...
  • Page 11 All manuals and user guides at all-guides.com X249 L2 Service Manual 3.10 Earphone Radio Silent earphone radio silent check if the earphone is repair or replace the earphone damaged check the pin of USB solder the USB port port is soldering...
  • Page 12 All manuals and user guides at all-guides.com X249 L2 Service Manual 3.11 External Audio Radio Silent external audio radio silent check if the speaker is replace the speaker pseudo welding check if the FM antenna is replace the FM antenna...
  • Page 13 All manuals and user guides at all-guides.com X249 L2 Service Manual 3.12 No Signal no signal check the connection of fix the antenna to the location phone antenna check if the phone is in airplane adjust it to general mode...
  • Page 14 All manuals and user guides at all-guides.com X249 L2 Service Manual 3.13 Fail to Recognize T Card fail to recognize T card check if T card is installed adjust its location correctlly check if T card is replace the T card...

  • Page 15: Earphone Fault

    All manuals and user guides at all-guides.com X249 L2 Service Manual 3.14 Earphone Fault earphone fault check the USB interface of repair or replace the earphone earphone is soldering or broken check if the pin of mainboard USB weld or replace the USB interface...
  • Page 16 All manuals and user guides at all-guides.com X249 L2 Service Manual 3.15 Camera Shooting Abnormalities camera shooting abnormalities check the welding of reinstall camera is good check if the camera is replace the camera damaged repair the mainboard by referring to...

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