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Sudden Weak WiFi signal on 3Gs

Over the last month or so I've experienced a big drop-off in my 3Gs's ability to latch-on to my local home WiFi signal. I've not recently upgraded, or changed settings on the phone. An example; my BT Home Hub router sits in my office and casts a strong signal throughout my timber-frame house, (and I know the signal's still fine because my 3-yr-old Macbook, which I use anywhere and everywhere, and spanking new iMac display full WiFi bars and the speed is excellent.) I normally access the web via my iPhone from my living-room, which is no more than 20 Yards from the router, and up until a month or so ago, enjoyed a full reception on the iPhone also, but now nothing. Zilch. (There is one small corner where I can sometimes pick up one bar.)
I'm composing this message on the iMac, which displays the full WiFi signal, with my iPhone propped up next to it and displaying zero WiFi reception. We are about eight yards away from the router.
(I realise this topic is closely linked to others already posted, but it's something that Apple should really be responding to; they obviously have people who keep an eye on forums like these to monitor feedback about their products, and connectivity issues seem to be a bit of a hot potato at the moment.)
My hunch is that the iPhone's capability to receive a WiFi signal has somehow become compromised, being as all other devices - and Apple devices at that - work fine.
Can somebody help.
Thx.

iMac 27" 8 Gig, 2 TB, Mac OS X (10.6.6)

Posted on Jan 18, 2011 2:21 AM

97 replies

Dec 16, 2012 9:56 AM in response to Andrew Teilo

I have had this problem for about 4 months. So have had no wifi for that long! Today I charged my phone on our Bose and suddenly the wifi has started working. I tried everything apple suggested to no avail!

drips

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Dec 18, 2012 10:31 PM in response to Andrew Teilo

I've been having the sudden WiFi drop off for a while now and finally got fed up enough to resolve it. After reading this thread for input I just opened the phone, blew it out, disconnected the 6 & 7 connectors (couldn't remember which was the WiFi ant), blew them out and reconnected, then closed it up. I tested just before I did this and where I was getting 1 bar flickering to 2 bars I suddenly got full reception and way faster loading time. YMMV but it's easy and free. I was thinking I'd have to replace the antenna; very happy now.

Mar 18, 2013 6:30 AM in response to drips

Same here. Reseated the connector number 6 on my 3gs and wifi all better.

BTW in case you were wondering there really is an orange sticker with the numeral "6" inside there next to the connector.

Sdmnr

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May 9, 2013 6:08 AM in response to Andrew Teilo

I had the same problem with my 3gs and i found out that the upper part of my iphones body was a bit loose.... When i tried closing it by pressing the phones upper body and i got full wifi signal and after letting it loose the signal started getting weak so i figured that there was a problem with my phones body so i replaced it n now its all good... I dont kno if it will work out for u but it certainly did for me

Fir3face

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Sep 8, 2013 2:51 AM in response to Andrew Teilo

I found a solution to the problem, If you put a paper clamp on the top area of the phone where the speaker is then it should solve the problem without having to use your thumb to hold the top down, doing this could do damage to your fingers so i found that a paper clamp works just as well

Sep 17, 2013 1:51 PM in response to Arkel90

I've been with this issue for 2 weeks: weak wifi, no gps. I went to the genius bar at Apple Store and the only solution was to reinstall as new. But it didn't work. I was going to give up but I spended some hours reading and found your 'smack' solution, and it work great: wifi has returned, and gps works great.

I think I'll go back to GeniusBar to explain the solution.

Sep 17, 2013 1:56 PM in response to Osnolaprod

Osnolaprod wrote:

I think I'll go back to GeniusBar to explain the solution.

Don't bother. They are NEVER going to make that recommendation to a customer. You'll just be wasting your time.

Sudden Weak WiFi signal on 3Gs