Nokia Asha 311 WiFi Not working Problem Solution Ways

WiFi is used for networking a Smartphone with some other networking devices and it works for VPN (Virtual Private Network ) to gain a high speed broadband speed at you smart phone Nokia 2320 Classic Hang problem solution see all cellular mobile repairing solution
in above diagram you can see a red line that identify parts used in wifi function in Nokia Asha 311.So after disassemble of mobile phone look all these parts very carefully and if there is some rust or water damages clean them with electronics cleaner and apply smoth heat with hot air. do not apply to much air because it can harm your skin and also can damage the mother board.
So re flow resold these parts and if it can not solve problem replace these parts that are given in above diagram.
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