It sounds like the antenna connection came loose when you dropped the phone. Try taking it apart and reseating the connectors in the phone and that should fix it.
It sounds like the antenna connection came loose when you dropped the phone. Take the phone apart and reseat the connector, along with securing any screws used to hold the antenna in.
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The guide to open the phone can be found here: [guide|8049]
It sounds like the antenna connection came loose when you dropped the phone. Try taking it apart and reseating the connectors in the phone and that should fix it.
You either ruined the antenna or loosened it or depending where it dropped
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worst case is the motherboard
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It sounds like the antenna connection came loose when you dropped the phone. Try taking it apart and reseating the connectors in the phone and that should fix it.