Chosen Solution
Title says it all. I disassembled and reassembled my iphone and my wifi and gps signal shot straight down. I can barely receive wifi signals sitting right next to my wireless router. My gps signal is the same way as well. Any reasons?
Well well my exact problem. I dropped the phone, while i could hear others in normal mode I had some very loud noises during loud speaker call and people could not hear me in either times. I sent it to a repair store! It came up that the new introduced Mike in iPhone 4 was the problem. They soldered it back and it was fine. Later on I find that my Wireless is reception very Poor (I have not tested GPS). I think the repair store as probably you have left the G.P.S./WI-FI/Bluetooth antenna unscrewed or some connector to it. I have been very wary to send it again as I doubt on the service(the did smth like this once). I will send again but would need an opinion of what is missing first!! Any body to help us is welcome!!
please i really need help i have 3 iphones with the same problem
Ended up finding the issue. The wifi signal is affected by the black/silver metal plate that covers the connectors of the screen. There’s a little silver metal piece at the top of that plate which contacts with the motherboard. https://www.ebay.com.au/itm/132391133170
