Sony Xperia L4 Help Manual page 52

Help Guide
Smartphone
Xperia L4 XQ-AD51/XQ-AD52
Increasing Wi-Fi signal strength
There are a number of things you can do to improve Wi-Fi reception:
Move your device closer to the Wi-Fi access point.
Move the Wi-Fi access point away from any potential obstructions or interference.
Do not cover the Wi-Fi antenna area of your device.
E-797-100-11 Copyright 2020 Sony Mobile Communications Inc.
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