Iphone disconnection to itunes + start-up issue

Hello Everyone,
Attempted to upgrade my iphone 4 to iOS 5 but ran into a number of headaches. The initally upgrade stalled numerous times on the "back-up portion" of the upgrade. Fearing the worst, I restored my phone which appears to have created a bigger problem - my phone is blank and will not connect to itunes for system upgrade. what it's currently doing is loading from spinning circle to the apple logo on infinite loops. i'm running a 10th month old macbook pro, OS is upgrade. I test my UBS with a nano and it works perfectly so the problem is def. comning from the phone. Do you have any advice? I desperately need to get it up and running ASAP.
Thanks a million.
CW

Thank you very much Jan Frydendal and sptrakesh, I didn't know the technique.
By including Default.png, the impression of the start up time was quite improved.
And I would like to know the details about "loading view in chunks".
My app creates subviews in viewDidLoad method now, but is there better way?
Also I would like to know how to load data lazily.
I am afraid the start up time will be slower if the size of the app data increases.

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Thanks for using Apple Support Communities.
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http://support.apple.com/kb/ts2529
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Hi, I disabled the antivirus and the firewall. Same result
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Thought this further info may be of use to some who wants more historic dates in their calendar.
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jsrun wrote:
On the phone with very friendly and helpful Apple reps and managed to troubleshoot/isolate the problem to a corruption in one of the address book entries (But anyone's guess as to which one...)
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Sorry if there is too much info, or not the correct info to find a solution!
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A big THANK YOU!! to you! Your suggestions worked!
Before I changed USB ports (more on that in a sec...), I employed one of your suggestions that you gave to someone else with the same problem...and that was to clean the connector on the bottom of the phone with a soft dry tooth brush. I couldn't believe the amount of lint that came out! Especially what was found in either end...had to do some very careful picking. (Almost enough lint to knit a small sweater!!)
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Now if I can figure out the rest of this darn program, I might upgrade to a new iPhone!
Again, thank you very much Lawrence!
Rich

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If you don't see your connected device in iTunes for Mac - Apple Support
Regards,
- Brenden

ITunes could not sync calendars to iPhone because the iPhone disconnected

error message
iTunes could not sync calendars to iPhone because the iPhone disconnected
I have spoken to Apple a couple of times in the last week (approx 2hr) apple support said it could be a Microsoft issue I have spoken to Microsoft and read endless information from the net and it seems that Microsoft is not the issue.
I have uninstalled itunes and reinstalled, reset all settings in Settings\General on the phone, reset sync history on the iPhone, upgraded microsoft office 2003 to 2007 and I am still getting the error message.
I have a iPhone 3G, pc is running windows 7 and just upgraded to microsoft office Home and Student 2007 and Office Outlook 2007.
iTunes version 11.0.2.26
iPhone iOS 6.1.3
I have the same error on my wife's iPhone as well.
Any help would be great.

Thanks midwestcraft. I had this problem and your answer solved it for me.
Thought this further info may be of use to some who wants more historic dates in their calendar.
I had "do not sync events older than" unchecked and the input field set to "0". When I changed it to 180, it worked perfectly. I've found that I can increase this number to "545" - anything higher causes the error. This seems to coincide with some strange multiple-entry events in my calendar.
Don't know if this will be a clue for somebody to fix the issue.

ITunes could not back up the iPhone because the iPhone disconnected (iTunes 11.4.0.18) Windows 7 Home Premium 64 bit OS

Dated: Fri Oct 10 2014 (Malaysia)
i'm using Windows 7 Home Premium 64 bit OS with the latest version of iTunes (11.4.0.18).
My iPhone 5S already installed with iOS 8.0 but now iTunes unable to do the latest "Back Up" before i can perform the upgrading of new iOS 8.0.2 which iTunes keep on prompt an error message @ iTuens could not back up the iPhone because the iPhone disconnected.
The last "Back Up" to my computer is on Oct 2, 2014 2:24 am. Due to the failure of the "Back Up" so iTunes unable to perform the upgrading of new iOS 8.0.2 to my iPhone 5S. Therefore, do hope that my problem can be solve ASAP.
TQ & Regards,
Mr. TanCW

Hi tcw iphone malaysia,
Thanks for visiting Apple Support Communities.
If you are trying to back up your iPhone, but iTunes for Windows is not detecting the device reliably, I recommend starting with the steps in this article:
iOS: If you can't back up or restore from a backup in iTunes
These steps can help resolve many error messages that appear when connecting your iPhone to a PC.
Best Regards,
Jeremy

Iphone disconnection to itunes + start-up issue

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