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Help WiFi Problem

Stoyan Georgiev

Stoyan Georgiev

Lurker
Hello ! Recently I had a problem with one of the sim slots and I took my phone to the service centre. I took it back, but obviously they have done something to the wifi antenna, because the signal now is very week, even right next to the router. The problem is not in the router itself. I don't want to get my phone back to the service centre, because of many reasons. I understood that the problem could be in the wifi antenna, but I don't know where it is, in order to try to at least clean it. Can you help me? Thanks!
 

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Could be the repairer might have dislodged or even damaged the WiFi antenna. What phone actually is it? Because this will be very device specific. Might be worth looking at Ifixit.com see if they have any teardown, disassembly or repair tips for it.
 
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I think it might be happening because 2 out of 4 wires are not soldered. /sorry, English is not my first language, obviously :)/
 

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You referring to the thing on the back of the battery, above the barcode? That's a thermal sensor, to ensure it doesn't get too hot and explode while charging. That only needs two connections. Have you looked on the other side of the assembly, logic board, and back of touchscreen? Post a pic of them.
 
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What brand/type of phone is it? Some wifi antennas coil around the inside of the phone. It sounds like the wifi card is ok but the coil is disconected. Your going to have to research to find the location and replace/repair it somehow...
 
Hi 1) Try removing the Wifi information then do a soft reset to the phone. After that's complete, Reinter your Wifi information back into the appropriate place and watch for its connection.
2) If it the problems persist with that connection see if any other Wifi connect Ed devices is having similar problems. If so your router need to be reset and repeat process 1) over again.
2) Try a different connection like a hot spot of some sort. If the device having been damaged from accident or missing handling it, there should be no reason for the device hotspot to malfunction.
3) If all fail do a hard reset of the device. NOTE: back up anything you don't want to be lost before you do a hard reset and remember to remove your SIM CARD and any SD CARD before do a hard reset to your device.
4) replace your sim card and your SD card after the reset is complete and enter in all your information to set your device backups.
 
Your Wifi and mobile network carrier antenna is one of the same so if your network carrier is connecting to your device that means that you're Wi-Fi connection should be working also.
 
PS forgive me for any typos because I noticed a few before I forget to proof read the information before I logged in it and notice that wasn't a edit button in this forum.
 
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