Repair your phone with ease: learn from a real case study!

In the process of repairing a mobile device with charging issues, it's important to carefully remove and examine various components. One such component is the Faraday cage, which serves as a protective shield against radio frequency interferences and prevents the emission of magnetic fields. To remove this sticker, apply 200°C and 50% air.
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The IFPmic, responsible for managing battery charging, is equipped with a pad to maintain its temperature. To remove the shield protecting it, a hot air station at 400°C and 50% airflow can be used. Keep in mind that temperature and airflow depend on various factors, such as the model of the station, laboratory conditions, and altitude. Before removing any metal shields, practice on broken motherboards to better understand the working temperature of the station.
Once the shield is removed, use a ventilator to cool the motherboard, and check if the device still turns on. Exercise caution when removing shields, as any accidental movement can cause a breakdown. If the device turns on correctly, proceed with the repair.
Next, remove the last shield where the OVP protection circuit is located, which houses the IFPmic or charging circuit. Inspect the components for any issues or displacement. If the device doesn't turn on after pressing the power button, measure the voltage on the button pins. The correct voltage should be around 4.3 volts.
To better understand the power button's function, examine its arrangement on the motherboard. The button connects with a resistor, which communicates with the PMIC. The schematic diagram shows the power key line and the resistor, which is typically a 10 KΩ resistor.
In summary, when repairing a mobile device with charging problems, it is crucial to carefully remove and inspect various components, such as the Faraday cage, IFPmic, and power button. Utilize appropriate temperature and airflow settings when working with sensitive components, and always practice caution when removing shields. By following these steps and understanding the schematic diagrams of the device, professionals can effectively troubleshoot and repair mobile devices, regardless of the specific model or manufacturer.
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[@MovilonePhoneRepair]

🟨 Tools, suppliers, solder paste, on the description of this video⬆⬆⬆

[@Lumii81]

Thank you for sharing Leonardo. Can you tell me please what was the issue on the motherboard that the battery doesn't charge? I don't understand it. I try to learn to repair with your videos and they helps me a lot. I didn't find till now any other chanel that explain most of the knowledge like you. Best regards from germany.

[@rasidtatak3356]

Thankyou so much for this free online course for mobile repair really appreciate I am a simple Technician from Philippines

[@MovilonePhoneRepair]

You're welcome, Rasid! I'm glad to hear that you found the course helpful. It's always great to hear feedback from fellow technicians around the world. Keep up the good work in the Philippines!

[@alymoussa4313]

Great work its very good

[@luixvillarin2017]

Hi. Thank you so much for your videos. How to get in the course? Im from Philippines 😊

[@development2311]

Is it live class or video? Please update me thanks

[@development2311]

And can watch the video several time?

[@angelodemichele]

I do not understand.. At the end the issue was the power button? Why? Thanks

[@Lumii81]

Watch the whole course. The solve repair doesn't finish in this part of the course. Watch next course video

[@development2311]

Payment is only 1 time?

[@ustaadaadam]

Thanks so much I want also online course you're my best teacher

[@MovilonePhoneRepair]

Thank you for your comment!Best regards