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Summary:

Apple released the much anticipated iOS 4.0.1. iPhone users have been eagerly awaiting the update ever since Apple revealed there was a problem with strength of cellular signals from ATT incorrectly displaying more bars than appropriate.

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Apple today released the much anticipated first update to the fourth iteration of its mobile operating system iOS 4.0.1. iPhone users everywhere have been eagerly awaiting the new update ever since Apple revealed last month that there was a problem with the way the system was calculating the strength of cellular signals from ATT, incorrectly displaying more bars than appropriate.

It’s worth mentioning that this revelation came in the midst of rampant speculation on the part of many new IPhone 4 owners who were noticing unusual behavior whenever they touched “The Spot” on the new phone’s magical external antenna.

Essentially, Apple admitted that the formula it were using to calculate the little bars that show up in the top left hand corner of your phone’s screen was all wrong. AnnandTech did a fabulous job of laying out the problem by altering their phone to report signal strength as an actual dB value rather than just showing bars. What they learned was that the dynamic range used by iOS reports more than half of the possible signal strengths -51 dB to -91 dB as 5 bars. They also measured the associated drop in signal that comes from touching “The Spot” on the iPhone 4 (24 dB), holding the phone open in your palm (9.2 dB), and holding the phone naturally inside a case (7.2 dB). This explains why new owners seeing five bars with a signal strength of only -91 dB would see it drop to nothing when touching “The Spot.” This extreme unintended attenuation would drop another 24 dB off the signal bringing it to a whopping -115 or 0 bars.

While this update rightsizes the dynamic range used by the phone to display signal strength, it obviously won’t do anything to fix the unusually strong amount of attenuation that happens when touching “The Spot.”  There won’t be any software update that helps with that. Will there ever be a fix for “The Spot” beyond just not holding it wrong or putting some tape or a case on it? Maybe we’ll find out at the press conference Apple has scheduled for tomorrow. Personally I suspect Steve will get up and just tell everyone to deal with it. Return the phone if you like but “The Spot” is here to stay. If you like it then you need to put a case on it.

  1. Did you get that last line from Beyonce?

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    1. Bryan Schuetz Thursday, July 15, 2010

      “Winner – Winner – Chicken Dinner!” Glad someone got that.

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  2. The update did nothing for me, besides making bars 1 and 2 taller. When I started the update my phone had 4 bars. When I finished it was at 2. Not only that but when I do have full service the death grip still takes its tole. I hope I get a rebate check for my bumper I purchased.

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  3. A while ago, Apple Computer changed its name to “Apple.” Maybe they should have changed it to “Arrogance.”

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  4. The upgrade failed to install because iTunes [9.2] was unable to perform a previous [3GS] backup to the computer [MacBook Pro with 10.6.3].
    Backups became already impossible since the iOS 4.0 installation. Now, no backup, no upgrade!
    Where are you going, Apple?!

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  5. Anybody notice that there is a delay now when opening “Folders” Im noticing a definite delay now with my iphone 4

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  6. No difference in delay here. they didn’t mess with that code for this patch… @MALHAO some people need to start from scratch on older phones to get them working smooth(er) on iOS4. Also a smart thing to do when moving from Mac OS 10.4 to 10.5 and then 10.6, if they have been used heavily.

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  7. Alan Weisberg Saturday, July 17, 2010

    Iphone G3 was loaded with new software update and now is twice as slow as it was before the update. Is anyone listening?

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  8. All the upgrade did for me was to stop bluetooth working with my car and NUKE all my e-mail accounts. Well done Apple. Have you recently hired some MicroHARD techs?

    Now I can’t fix my phone without losing all my text messages – hey that would have been a good upgrade. Wheres that one hey?

    Dick me around just once more and it’s the bin for your stuff.

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  9. Hi guys. Just bought my Iphone 4g and now looking for the microsim adapter. I’ve heard http://www.gomicrosim.com has good price and quality and is based in UK. What do you think, is it worth buing one?

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  10. im running 4.0.1 on a 3g and i might as well make a coffee when waiting for an app to open. i can write an entire sms and then watch the letters come up when im finished.. this is a freaking joke. i never would have upgraded to 4.0.1 except my 3gs and my laptop were stollen so when i went back to my old phone and my old laptop (which had been synced a million times before) it told me i had to do a full restore and would not allow me to use 3.1.3 as the firmware… what the hell is apple doing ??? if this is how they go about trying to get every one to go to the iphone 4 they can get stuffed ill go to HTC instead

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