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All manuals and user guides at all-guides.com S120 L3 Service Manual Micromax S120 1. Technical Specifications : Please fill below information in Remarks, Below given remarks are for reference only Particular Remarks Key Matrix For Flashing SPRD Flashing tool Chipset...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 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.
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All manuals and user guides at all-guides.com S120 L3 Service Manual Basic Structure of the Mobile Phone PCBA Diagrams of S120 Mainboard Charge MOS tube, charger will out work if it broken Charging connector,cannot start the phone if broken 26M crystal,cannot start the phone if broken...
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All manuals and user guides at all-guides.com S120 L3 Service Manual SIM socket,cannot read SIM card if broken...
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All manuals and user guides at all-guides.com S120 L3 Service Manual Camera bonding pad,camera no function if broken LCD bonding pad,no display if broken Vibrator if broken...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 3. L3 Level trouble shooting Please add trouble shooting/ Repairing steps against below given symptoms Images must paste against every suggested troubleshooting hint 1) Doesn’t Power On BAT1 X101 U100 1.
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All manuals and user guides at all-guides.com S120 L3 Service Manual...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 2) Restart / Hang Same as item 1...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 3) LCD J601 1. Check if LCD welding good 2. Check if main board short circuit...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 4) Touchpad --- NA 5) Proximity Sensor------ NA 6) Accelerometer-------- NA...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 7) Keypad Keypad bonding pad 1. Check if keypad short circuit...
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All manuals and user guides at all-guides.com S120 L3 Service Manual...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 8) Charging Q350 J511 1. Check if Q350 MOS tube is normal 2. Check if J511 welding good...
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All manuals and user guides at all-guides.com S120 L3 Service Manual...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 9) USB J511 1. Check if J511 welding good 2. Check if J511bonding pad short circuit...
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All manuals and user guides at all-guides.com S120 L3 Service Manual...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 10) Main Camera J670 1. Check if camera welding good 2. Check if J670 bonding pad short circuit...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 11) Front Camera------- NA...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 12) Flash Light LED1 1. Check if Flash Light welding good 2. Check if LED1 bonding pad short circuit...
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All manuals and user guides at all-guides.com S120 L3 Service Manual...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 13) Vibrator 1. Check if Vibrator welding good 2. Check if MT1 bonding pad short circuit...
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All manuals and user guides at all-guides.com S120 L3 Service Manual...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 14) Sim related Issues C523 C524 SIM501 1. If SIM501 welding good 2. Check if SIM501 short circuit 3. If C523,C524 welding good...
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All manuals and user guides at all-guides.com S120 L3 Service Manual...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 15) Network related issues U403 1. Check if U403 normal 2. Check if antenna work normal...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 16) 3G – LTE not working---------- NA 17) WI-FI------------ NA...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 18) Bluetooth U0100 ANT701 1. Check if BT antenna welding good 2. Check if ANT701 short circuit 3. Check if CPU normal...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 19) FM / Radio/ Ear Phone U100 J514 1. Check if J514 normal 2. Check if U100 normal...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 20) Heating---NA...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 21) Outgoing Audio SPK_L1 1. Check if speaker welding good 2. Check if SPK_L1 short circuit...
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All manuals and user guides at all-guides.com S120 L3 Service Manual...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 22) Outgoing MIC MIC1 1. Check if MIC1 short circuit 2. Check if MIC1 welding good...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 23) Receiver REC2 U100 1. Check if Receiver welding good 2. Check if REC2 short circuit 3. Check if U100 normal...
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All manuals and user guides at all-guides.com S120 L3 Service Manual 24) Memory Card U100 T-F1 1. Check if T-F1 normal 2. Check if T-F1 short circuit 3. Check if U100 normal...
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All manuals and user guides at all-guides.com S120 L3 Service Manual Thanks For any Query or suggestion, Please write to tech.help@micromaxinfo.com...