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General| Brand | Micromax |
|---|---|
| Model | Q427+ |
| Operating System | Android |
| Display | 5.0 inches |
| Resolution | 480 x 854 pixels |
| RAM | 1 GB |
| Internal Storage | 8 GB |
| Expandable Storage | Yes, up to 32 GB |
| Rear Camera | 5 MP |
| Front Camera | 2 MP |
| Battery | 2000 mAh |
| SIM Slots | Dual SIM |
| Network | 4G LTE |
| Processor | 1.3 GHz Quad Core |
Key hardware and software specifications including Chipset, Android Version, Frequency, ROM, RAM, and memory.
Details on earpiece, loudspeaker, MIC, and vibrator volumes, plus factory mode code.
Precautions for flashing, servicing, anti-static measures, component handling, and ESD.
Steps to diagnose and fix software loading issues: PC recognition, USB port, data cable, and component checks.
Steps to fix no power issues by checking battery, power IC, crystal, CPU, and short circuits.
Steps to resolve charging problems: SW, charger, USB, battery, connectors, charging switch, Power IC, and CPU.
Steps to fix LCD/display issues: SW, ribbon cable, LCD connector, and CPU checks.
Steps to fix touch panel malfunctions: SW, ribbon cable, TP connector, and CPU checks.
Steps to fix LCD backlight problems: SW, ribbon cable, LCD connector, Backlight IC, and CPU checks.
Steps to resolve SIM detection failures: socket, impedance, resistors, Power IC, and CPU checks.
Steps to fix SD card detection issues: TF card, socket, impedance, resistors, Power IC, and CPU checks.
Steps to fix front camera malfunctions: SW, camera, connector impedance, resistors, and CPU checks.
Steps to fix rear camera failures: SW, camera, connector impedance, resistors, and CPU checks.
Steps to resolve MIC no sound: SW, MIC, connections, earphone connector, FPC, Power IC, and CPU checks.
Steps to fix receiver issues: SW, receiver, circuit, earphone connector, Power IC, and CPU checks.
Steps to resolve speaker issues: SW, speaker, earphone connector, FPC, Power IC, and CPU checks.
Steps to fix earphone problems: SW, earphone, earphone jack, Power IC, and CPU checks.
Steps to fix G Sensor malfunctions: SW, sensor, and CPU checks.
Steps to fix FM radio issues: SW, FM Chip, antenna, and CPU checks.
Steps to fix Wi-Fi issues: SW, antenna, Wi-Fi/BT/GPS/FM Chip, and CPU checks.
Steps to fix Bluetooth issues: SW, antenna, BT/WIFI/GPS/FM Chip, and CPU checks.
Steps to fix non-working keys: SW, FPC, and CPU checks.
Steps to fix reset issues: SW, FPC, and CPU checks.
Steps to fix vibrator issues: SW, vibrator, FPC, and CPU checks.
Steps to fix proximity sensor issues: SW, sensor, and CPU checks.
Steps to fix GPS location problems: BT settings, SW, and GPS antenna checks.
Steps to fix network issues: SW, RF antenna slot, coaxial line, connector, RF PA, RF IC, and CPU checks.
