- #Ispeak phone repairs how to#
- #Ispeak phone repairs software#
- #Ispeak phone repairs code#
- #Ispeak phone repairs trial#
#Ispeak phone repairs code#
Now the company after taking phone for repair call back me for screenlock code and open phone and said phone started but after someday when they didnt return phone i call back and ask for phone they said phone display not working and spcb not working I Have given phone to repair in one big company and not service centreĪs service centre told that PBA/Front camera/ and charger ports is damaged due to water and it is not covered under warranty so they have given repalce cost of 17000/- of c9proĪnd one company claims that they repair motherboard and it doesn’t require to replace so i gave the phone to them
#Ispeak phone repairs how to#
How to Open and Disassemble a Mobile Cell Phone.
#Ispeak phone repairs software#
Mobile Phone Software Problems and Solutions.How to Increase Battery Life of Smartphone.Circuit Symbols of Electronic Components.Mobile Phone Fault Finding for Mobile Cell Phone Repairing.Mobile Phone Repairing Tools Supplier in India.How to Identify Parts & Components on PCB of Mobile Phone.Sections and Parts Inside a Mobile Cell Phone.How to Check Shorting in Mobile Phone with Multimeter.
#Ispeak phone repairs trial#
The problem is either solved by jumper or by trial and error ( check by replacement). There is no good sure test for these parts. All other parts including SMD electronic components and ICs are generally not checked for fault.Most mobile phone repair people and technician check only above parts to solve mobile phone hardware problems.PS: When checking a faulty mobile phone with DC Power supply, connect the Red Probe to “ +” and Black Probe to “ –” of the Battery Connector of the Mobile Phone. If there is beep sound from the DC Power Supply then there is problem with “ +” and “ –” or the mobile handset is short.If the Ampere needle stands at some fixed point then there is problem with the Flash IC.If the Ampere Needle fluctuates below 2 ten there could be problem with software or RTC ( Real Time Clock).If the problem is not solved then check by replacing them one by one. Give heat to these components using hot air blower. If there is no movement of the Ampere Needle of the Power Supply then the Battery connector, On / OFF Switch Track, RTC or Network Crystal is damaged.Check by replacing Power IC and the CPU one by one. If DC Ampere is over 6 then Power IC or CPU is damaged.Place the Red Probe / Test Lead of the DC Power Power Supply to the “ +” of the Battery Connector of the mobile phone and the Black Probe / Test Lead to “ –“: Power IC and CPUĪdjust voltage of the DC Power Supply to 4.2. This shows that the Network IC is OK and not fault. The Needle of the DC Ampere will start moving. Switch ON DC Power Supply and call any number from your mobile phone. Use a Analog DC Power Supply to check Network IC. If there is continuity then the coil or the Boost Coil is good otherwise it is faulty. Coil and Boosting CoilĬheck for continuity. If the LED is good then they will glow otherwise not. Keep the multimeter in Buzzer mode and check the LED.
If there is sound then the diode is faulty. If it is good then the multimeter will NOT give any Beep or Buzz sound. DiodeĬheck it with a multimeter on Buzzer Mode. If there is sound then the capacitor is faulty. To check SMD Capacitor with a multimeter on Buzzer Mode. If there is no sound then the SMD resistor is faulty. If it is good then the multimeter will give a Beep or Buzz sound. Resistor or ResistanceĬheck it with a multimeter on Buzzer Mode. If there is no sound then the coil is faulty. If it is good then it the multimeter will give a Beep or Buzz sound. How to Check Electronic Components CoilĬheck the SMD coil with a multimeter on Buzzer Mode. If we check by reversing the Red and Black Probes / Test Leads of the multimeter and check the microphone then there will be no value. NOTE: Please note that only one side of the microphone will show value. ON / OFF SwitchĬheck voltage with a multimeter. Mobile Phone Keypad Track Row Column Battery Connector
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