WiFi antenna or signal detection strength problem
After repairing of the charging port, weak Wi-Fi signal now compared to then.
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Hi @galaxya10
Make sure that both the red and blue coax antenna cables are securely connected at both ends i.e. charge port board and mainboard end and not loose or even damaged.
Here's the ifixit Samsung Galaxy A15 USB-C Charging Port and Daughterboard Replacement where you can see the antenna cables in various images in the guide
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