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iPhone 4 Weak WiFi Signal

My wife and I both bought iPhone 4s at the same the time. If I hold my phone in one hand and hers in the other and walk around our house, my signal drops to 1 wifi bar and sometimes goes to 3G network while her iPhone 4 stays at full strength. Her phone drops to 2 wifi bars when i go out into the backyard, but by then mine is already on the 3G network. And I don't have a big house.

The only way I can get full wifi bars on my phone is if I stand right over my wireless router. Even sitting in the same room with the router I stay at 2 bars and sometimes drop down to 1. I'm not even holding it when it does this. It's sitting flat on a table. It makes me wonder if I have a jacked up phone simply because my wife's phone stays at full strength.

Should I take it to an Apple store?

iPhone 4, iOS 4

Posted on Aug 12, 2010 10:19 PM

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2 replies

Aug 13, 2010 5:16 AM in response to mlepien

You should take a look at older topic about this same issue.

I'm hoping that this is pure software based problem but it's probably not. Most logicall reason for this issue could be broken antenna or loose antenna connector. But It could be also because of iOS4.

Apple had same kind of issues with iPad and those where fixed with 3.2.1 update. I didn't have issues with my iPad but many had. With iPhone 4 there aren't nearly as much error reports about this issue. But iPod Touch, iPhone 3G and 3GS are having difficult times with iOS4.

There are reports that previously perfectly working 3G/3GS devices are also having these issues (pathetic wifi range) after iOS4 update. It is also reported that some 3G devices have lost wifi completely after update. Those reports bring some hope about thinking it's just because of the software.

On the other hand. Many have changed their devices to new one and wifi problems have dissappeared. I personally tested today my iPhone 4 with co-worker one and wifi range difference was HUGE. Same iOS 4.0.2, same location and mine was giving choppy 1 bar and other one full bars.

Off topic I have to write that there seems to be huge problems in production lines. Mine has pathetic wifi and annoying rattle from back of the phone. My co worker phone has broken earpiece and vibrator is too loud. Third one that we tested had problems with camera, rattle from buttons and completely broken vibrator. Is it like winning in lottery if you get perfectly fine iPhone 4?

Dec 2, 2014 4:59 PM in response to mlepien

Did you ever get this resolved? My iPhone 4 worked fine with wifi, but its screen went black, so I took it to a repair place and they fixed the screen. But, ever since, the wifi signal is so weak it can only be useful when within 5 feet of the router! The repair place said they did everything they knew to identify the problem, but refused to take responsibility for the sudden drop in access to wifi signals. If you found a solution, let me know, please.

iPhone 4 Weak WiFi Signal

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