Weird wifi problem - Galaxy S3 Neo Q&A, Help & Troubleshooting

Hi. A friend of mine dropped her phone into microwave . IDK how long it was. After that the phome was reassembled from some parts found on ebay. WiFi was never working after that. Today i discovered, that wifi works only if phome is bery close to router. I mean really really close. How can i fix this? I,ve disassembled it but i havent found wifi antena cable. Is it normal?

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wifi on problem, diagnostic??

my phone had a lilte water problem, but is still in good function.
but the wifi is imposible to turn on.
do any one know where the hardware part is located?

[Q] WIFI problems after screen replacement

Hello Guys,
I just got my HD2 from repare, had to change the screen since it became unresponsive.
After I got it back, installed both WP7 and Anrdoid on it, I found out that the phone is not detecting any wifi networks. I tried in both WP7 and Android, and both of them do not detect any wifi networks. So it looks like when they changed the screen, they messed up WIFI connectivity. I'm guessing they might have forgotten to connect one of the connectors.
I am planning to take it back to them, but I was wondering if any of you knows which connector is for the WIFI, and if its easily visible once I take the back cover off, since I already done that before.
Thanks in advance
Hi dude,
if a connection is a problem and you even going to find it don't do it yourself.
it's a pretty small and gentle stuff, so you must know what you doing and how to connect them. Obviously you will need some serious tools.
my guess if you had all that - you already been doing this and not asking here.
so advice - not touching anything, not making it worse.
Best case: the connector came loose (which is not all that uncommon). It's the connector on the black wire on the top right side of the main board.
Worst case, they broke off a contact (which is also quite common).
Either way, don't try to repair it yourself but bring it back to the repair shop. If they accidentally broke off a contact then that requires a professional repair.
Thanks guys.
After some tests, I found out that the phone does detect wifi networks, but have extremely bad reception. I have to be very close to the wifi router for it to detect the network.
Any idea what might be causing this?
wessamzeidan said:
Thanks guys.
Any idea what might be causing this?
Click to expand...
Click to collapse
Like I said, either a loose connector or a contact has broken off. That will give you about 1 bar of reception while sitting next to your router...

Wi-fi interference issue just a little help

Hi!, im having an anoying problem that started some days ago. when i turn on wifi, some interference appears on the screen, like this video:
http://www.youtube.com/watch?v=saMlfj7bo4g
Well, i tried to reflash and nothing, but when i put some pressure on the back of the phone, i see this interference disapear. so i did some research and didnt found exactly where is the wifi antena (receptor, whatever) can someone give me a hand to locate it? thanks!

Note 4 Wifi problem

I recently got my note 4 screen replaced. While i was using the phone while still cracked the Wi-Fi worked fine. After getting my phone from the repair shop, the s pen was glued inside the phone , the screen was slightly popping out and the Wi-Fi was messed up. I couldn't get any signal unless im very close to my Wi-Fi router. I take the phone back to the repair shop and explained everything. Once I got the phone back, everything was fixed but the Wi-Fi problem was still there. I tried factory resetting the phone but that didn't work. I would like a solution to this. Thanks.
Try to push the back of the phone where the connectors of antena or change back cover.

Wi-Fi signal problem after replacing battery ?

I had this mobile for over 4 years and Wi-Fi signal worked fine
week ago a new battery i ordered arrived and after I replaced it Wi-Fi signal became very week to almost none
something must happened but I can't figure it out and my doubts is with antenna board, the screw near battery connector is loose
when i try to push on this board sometimes the signal gets strong for a second and loose it afterward
can someone tell me where exactly the problem and how to fix it?
where is Wi-Fi pin that connect to antenna board?
Really appreciate any help
allouh said:
I had this mobile for over 4 years and Wi-Fi signal worked fine
week ago a new battery i ordered arrived and after I replaced it Wi-Fi signal became very week to almost none
something must happened but I can't figure it out and my doubts is with antenna board, the screw near battery connector is loose
when i try to push on this board sometimes the signal gets strong for a second and loose it afterward
can someone tell me where exactly the problem and how to fix it?
where is Wi-Fi pin that connect to antenna board?
Really appreciate any help
Click to expand...
Click to collapse
Have you checked on ifixit or similar teardown sites that also provide videos and modules for replacing? There are often explanations of the modules, cables, connectors especially where they are located

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