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IPhone 4 Bluetooth Issues

IPhone 4 doesn't allow reasonable range and other issues with bluetooth headset. Fyi, tried with Apple Bluetooth headset which worked perfectly with IPhone 3G & IPhone 3G-S. Issue, you can have IPhone 4 in shirt or pant pocket and bluetooth will disconnect. Also, you can have IPhone 4 inside car and close the door while standing right outside the door and bluetooth disconnects. This never happened with previous models including IPhone 3G-S with IOS 4 installed.

Other bluetooth issues: as others reported - muffled sound quality to person your talking to. Time delays and disconnects with bluetooth Uconnect. IPhone 4 won't let you change between your car audio phone feature back to IPhone 4 without freezing.

IPhone 4,, iOS 4, Bluetooth Issues

Posted on Jul 8, 2010 3:24 PM

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631 replies

Jul 13, 2010 6:14 PM in response to bryancarter

Same problems here with a Jawbone Prime that was ROCK SOLID with my iPhone 3GS (walk in another room, have 3GS in your pocket, leave 3GS in the car and get out). Now if I get more than 7 feet away from the iPhone 4 (in line of sight in a cradle), people can't hear me (but I can hear them - indicates a problem on the iPhone 4's RX side). Lots of crackles as well on incoming sound. Drops connection and then reconnects, or sometimes not, you never know - it seems to have an attitude of it's own.

Genius Bar swapped me out for a second iPhone 4 handset, no improvement (although this one seems to drop phone calls less). Oh and by they way, I use a bumper too and have reset the headset and re-paired about 20 times with no improvement.

As I run my business from this phone, it's a real killer. LOVE the new screen, camera, speed, battery but wishing I hadn't given up my 3GS to Gazelle.com - I'd return this phone in a heartbeat due to this issue alone.

Hoping Uncle Steve is having the engineers in Cupertino work late to fix this one and I hope it's not due to the new-fangled antenna band which they won't be able to fix without a re-design.

I have to quit being an Early Adopter... 😟

Jul 13, 2010 6:18 PM in response to tfraley1

tfraley1 wrote:
I too have been having massive problems with the Bluetooth Plantronics Voyager pro. the people on others end can't hear you or sounds muffled, continuous disconnects, the range a definite problem. then going back and forth with Apple on this.

Called Apple support back today, this time I actually used the Bluetooth the Voyager pro, it was kind of funny the Apple guy kept saying I can't hear you, i can't understand what you are saying. you sound like you're really muffled. So i took it off blue tooth and I said now that's the problem that I've been having.

so far I have swapped out the phone
restored the phone is a new phone to factory settings as the Apple tech said.

Still same problem exist, he put me on hold talk to the supervisor and his supervisor confirmed that yes there are problems with this particular model of Bluetooth headsets, the Voyager pro. he said another update was coming out for the ISO 4 in a couple weeks. That may fix the problem was the answer. but that was no guarantee. he suggested getting another Bluetooth headset. and I don't know about you guys but that's not an option, I've just spent $100 on this one.

I have done a lot of research on the net trying to find out any way to fix this, and one thing for sure Is Plantronics needs to step up to the plate and start addressing this issue. over 95% of all the problems I found with the Bluetooth headsets directly mentioned the Plantronics Voyager pro.yes there were other problems with IOS 4 and Bluetooth but the Voyager was 95% of all i read. so what about it Plantronics no comments yet. If I do have to purchase another headset I promise you it will not be a Plantronics, if they can't even address this situation. The Apple tech said it looks like it's a problem with the Voyager pro and the noise canceling feature. now that part is probably BS. I'm just very angry that no one Apple or Plantronics are even admitting a problem with the Bluetooth. guys we need a fix or Apple and Plantronics will be history, at least with me anyway


this doesn't make sense.. i have an iphone 4 and a Nextel.. my Voyager Pro+iPhone 4 is USELESS!, but once i connect to my Nextel, everything is fine! so how is the problem with the Plantronics Bluetooth?.. i've been using the bluetooth with my iPhone 3G for a few months now with no problems.. and now with the iPhone 4 it's nothing but problems.. so doesn't make sense to point the finger @Plantronics.. and read around this site, u'll see ppl w/ other brand bluetooth's having the same issue.

Message was edited by: NextelMichaelG

Jul 13, 2010 7:01 PM in response to bryancarter

OK, I got the iPhone 4 and it is SUPER COOL,
but it has "THE WORST" reception and is UNABLE
to hold a Bluetooth signal. I returned the phone
at the Apple store and they changed it for me.
The 2nd iPhone4 I got was WORST than the 1st one.

To make a long story short, I ended up in the
Apple Headquarters in NYC (The "CUBE" on 5th Ave)
and I had 3 Techs and 2 Managers with their new iPhone 4's
and EVERY SINGLE ONE OF THEM HAD THE SAME EXACT
RECEPTION AND BLUETOOTH PROBLEMS THAT I HAD.
We each paired 5 DIFFERENT BLUETOOTH DEVICES to our
iPhones (6 in total !!!) and all 5 BLUTOOTH DEVICES FAILED.
They were ABSOLUTLEY CONVINCED THAT THIS WAS A HARDWARE PROBLEM and
they sent a "HIGH PRIORITY E-MAIL" to Apple's engineering people.

This is CLEARLY an antenna problem, not a software problem.
But Apple is saying it's just a matter of a software update.
I'll download the new software and test it before I step back
into my iPhone3G.

I think that Apple is looking at a RECALL SITUATION !!!
What do your guys think ? Recall ?

Jul 13, 2010 7:56 PM in response to equals 42

Someone please answer this problem. When I first set up my iPhone 4 Bluetooth in my BMW it worked great.. until I synched the phone on iTunes and now I have to manually set the bluetooth every time I turn on the engine.

This has got to be fixed soon as BMW said that it will be a while before they have an update for the iPhone 4!!

Jul 14, 2010 6:18 AM in response to bryancarter

I wanted to report I'm having issues with my PLT 510 bluetooth headset and voyager 855 stereo headset. People are telling me they can't hear me and the sound is muffled. This same headset worked fine on the 3GS and is now having issues with the iPhone 4. Another issue I'm having on my stereo headset when listening to music...if I hit the sleep button the audio will sometimes go in and out. This only appears to happen when listening to music. I have a bumper on it and not holding it when having these issues. This is very disappointing with the way Apple has handled this and wish they took ownership of the issues. I've had the 3G, 3GS and now iPhone 4...as well as a dozen other apple products. I don't like to talk on the phone itself and prefer the bluetooth so not sure what to do!! I'm hoping this is a software issue and will wait for that but it sounds like it may not be this.

Same issues I'm having with 2 different bluetooth headset.
Other bluetooth issues: as others reported - muffled sound quality to person your talking to. Also having issue with stereo headset and music going out.

Jul 14, 2010 10:15 AM in response to NextelMichaelG

I agree with you, it is the IPhone 4 or os4 one. the only reason i was pointing out Plantronic is that it seemed like it was getting the most complaints maybe it is more susceptible to the problem..Plantronics need to really press Apple on this issue.
I too have a black berry and my Voyager pro works fine with it. no problems at all.

you take your phone to the apple store and they tell you it is the voyager pro and then they pair up one of their Apple blue-tooth devices and it works with no problem what do you say to them at that point?

Jul 14, 2010 12:09 PM in response to tfraley1

Have to say that I am having the same problem with the Plantronics bluetooth headset. When I first got the iphone 4 I also bought and set up a AT&T microcell to improve reception in my house. Since I only use my iphone 4 with the plantronics, I thought the terrible sound quality was the microcell. On the verge of returning the microcell, I decided to try the iphone 4 direct without the bluetooth HS. The sound quality was GREAT! I used the same headset on my old 3GS and it was fine. Apple has a software (hopefully) problem with iOS4 on bluetooth/plantronics. Let us hope they fix this ASAP. Buying a new headset is not an option.

Jul 14, 2010 6:57 PM in response to bryancarter

I am hoping that Apple engineers are reading what users are saying because several posts under this topic reflect the exact same problem I am having with my iPhone 4 in that it simply will not maintain the bluetooth signal with my Plantronics Voyager device which worked perfectly with my last phone (Motorola flip). I will make an outbound call and by the time the person I called answers my call, the bluetooth signal is gone and I can hear the person I called coming through the handset speaker- VERY frustrating! As a former Apple employee, we never shipped a faulty product that we did not immediately offer repairs or exchanges. Apple needs to make rapid design modifications FAST and rescue all of us who have purchase this elegant but flawed device.

Jul 15, 2010 1:11 PM in response to bryancarter

Had trouble with my Jawbone Icon and my iPhone4. Calls kept cutting in and out when I had the phone in my front pocket.

Jawbone was able to help me reset the iPhone and the Icon. Things seem better than before for now.

On the iPhone, they had me go to Settings, General, Reset, Reset All Settings. Then I needed to hold the talk button on the jawbone while plugging it into an outlet (not that easy to do!). Finally I re-paired the icon with the iPhone and, so far, things are better.

Jul 15, 2010 3:14 PM in response to hoo

Same, here. After getting an iPhone 4 earlier this week, I exchanged a new H-17 for another because of problems losing Bluetooth connection and having no range. Have not had complaints about voice quality. Apple hopefully will recognize this problem and help us out soon. Can't believe this was not found in pre-release testing; ditto the antenna problem. BTW, H-17 was rock solid with Blackberry. In spite of this, I still love my iPhone.

Jul 15, 2010 3:57 PM in response to bryancarter

I'm having several Bluetooth issues with my 3GS since I upgraded to the iOS 4.0. I have been using the Plantronics Backbeat 903 (excellent BT headset, btw) since the 3G and only after I upgraded to iOS 4.0 did the problems start. One example is the phone starting to freeze altogether while using BT for music - I'll hit the home button to wake it up and it is completely unresponsive. I have to do a hard restart to get it to function again. Another example which just recently started is the play/pause feature - I hit the pause button on my headset and the music stops for about 10 seconds and then it comes right back on. I can repeat the process over and over and iPhone keeps restarting my music without me pushing play on the headset. I was having this problem today and turned the headset off completely and iPhone didn't recognize that there was no longer an established BT connection with the headset. The BT icon was still blue in the iPhone bar. I'm also noticing a higher frequency of gaps in music when the phone is in my pocket. There are certain intersections in SF where this is a common issue - but it is happening outside of those places much more frequently now. This is a bit tedious, but not enough for me to downgrade back to iOS 3.X. I just thought I'd add to the list and see if anyone else is having non-call related BT issues with iOS 4.0.

Jul 15, 2010 6:51 PM in response to bryancarter

I have the same problem. Bluetooth dropping frequently wether phone is in pocket or on desk. Never had it with 3G even with OS4 update. What's with Apple????????? Why have they issued a product with so many glaring problems???? Why haven't they acted to resolve them??? Do they feel they have our money and they'll get around to these issues when it's convenient for them???????

IPhone 4 Bluetooth Issues

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