Скачать или смотреть Itel Vision 3 Network Problem Fix | No Signal & SIM Not Detecting Step by Step Hardware Repair

📱 Professional Itel Vision 3 Network / Signal Repair Guide

In this video, you will learn how to fix Itel Vision 3 network problems, including:
• No signal
• SIM not detecting
• Weak network signal
• Network searching problem
• Emergency calls only
• Network problem after update

This step-by-step hardware repair tutorial includes:
✔ SIM slot & connector inspection
✔ Network / Baseband IC troubleshooting
✔ PMIC network voltage testing
✔ Antenna line & RF section check
✔ Jumper methods (board-level repair)

🔧 Ideal for mobile repair technicians (Beginner to Pro) in US, UK, Europe & Asia.

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Itel Vision 3 Step by Step Network Problem Solution

🛠️ 30 Step-by-Step Professional Repair Guide

Confirm network problem

Test SIM card in another phone

Check network mode settings

Reset network settings

Power off device

Open Itel Vision 3 carefully

Inspect SIM slot pins

Clean SIM connector with IPA

Check SIM flex continuity

Measure SIM voltage lines

Inspect nearby resistors

Inspect capacitors around RF section

Check baseband / network IC pins

Measure PMIC network output

Identify missing voltage

Check antenna connector

Test antenna line continuity

Apply jumper if track damaged

Reflow network IC carefully

Replace faulty IC if required

Reconnect SIM slot

Assemble phone partially

Insert SIM card

Power on device

Check SIM detection

Test signal strength

Make test call

Test mobile data

Fully assemble phone

Confirm network problem solved

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