Infinix Smart 7 Network Problem Solution | No Signal | SIM Not Detected | Emergency Calls Only 📶🔧
Having network issues on your Infinix Smart 7 like no service, no signal, or SIM not detected? This video gives you the complete hardware solution to fix all types of network problems using jumper ways, antenna check, and baseband IC diagnosis.
🛠️ What You'll Learn:
How to fix "Emergency calls only" problem
How to check SIM card reader and network lines
Jumper ways for broken or missing network paths
Testing and replacing PA (Power Amplifier) IC or RF IC
Antenna point cleaning and repair
Fix network after flashing or software update
📱 Common Problems Solved:
SIM inserted but no signal
Searching network continuously
No service after water damage
SIM not detected or invalid SIM
Network disappears during calls
🧰 Tools Needed:
Multimeter
Hot air rework station
Jumper wire
Microscope (for IC level inspection)
📢 Warning: Perform repairs only if you have experience with phone hardware. Backup data before servicing.
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