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calendar data missing on iphone after ios5 update

I sync my calendar and contacts wirelessly with MobileMe, and after I updated the phone and ipad to ios5, the calendars on both devices are missing all the data except for birthdays and holidays.

Any ideas?

iPhone 4, ios 5 upgrade

Posted on Oct 13, 2011 1:43 PM

Reply
17 replies

Oct 13, 2011 3:07 PM in response to mpinjp

An interesting new wrinkle:

I added a couple of items to the calendar on the iphone, and they showed up on the MobileMe calendar, but items are still not downloading to the phone or ipad2. Also, now new items added to iCal are not showing up on the MobileMe calendar.

And now, as I'm typing, items are slowly showing up. Some are still missing. Weird . . .

Oct 16, 2011 9:03 PM in response to mpinjp

My iphone 4 calendar entries disappeared after upgrading to ios5. I searched and read and tried the various thing that worked for others (delete icloud from iphone, add it back in, restore from backup etc).


None of it worked.


To recover the data here's what has worked for me:


1 Grab the iphone backup file from the backup in iTunes just before upgrading. Copy it out to a temp folder.

2. Grab an iTunes backup extractor. (google it, adding the word supercrazyawesome - thats the one I tried and it worked for me just fine).

3. Feed the backup file to the extractor and pull the item named iOS near the bottom of the list that appears in the extractor to a new folder.

4. Inside the extracted bunch of files/folders, locate Library/Calendar - there is an sqlite database file inside that folder named Calendar.sqldb. That is where all your calendar data is.

5. Use an SQLite database reader (google it - there's free one available, the first one I tried worked for me). Feed it the Calendar.sqldb file.

6. In the Calendar database, choose the item named "Events" - that's your calendar appointments and notes.

7. Export as CSV.

8. Read the CSV into Excel or another spreadsheet to reconstruct your calendar.

9. Last hurdle: to convert the numeric value for dates into date format, use the Excel formula: =”1/1/2001″ + CELL/60/60/24 + OFFSET/24 where F1 is the cell which has date value in spreadsheet and OFFSET is the timezone offset from UTC (7 for California as of 10/16/2011).


Hope this helps.


(Adding some terms to help those searching for an answer: ipad ipad2 ipod touch itouch ios5 ios 5, calendar update upgrade gone vanished missing disappeared broken bug disaster )

Oct 24, 2011 10:33 PM in response to Neohydra

If you get a duplication of all the appointments on one of your computers, do NOT erase them. I had some devices link to iCloud with my user name then .mac, some link with my user name then .me. The problem was the computer still linked via iDisk with an incomplete transfer to iCloud. I erased the "duplicates" and suddenly all of the linked devices erased every appointment. That gives you a rather hollow feeling to realize I have no clue what appointments I scheduled!


Export EACH of the calendars you will need from a computer that is still working correctly. If you erase the "duplicates," like I did, you may need to restore from those export back-ups. Export the back-ups as soon as possible. I tried to catch a calendar before it was erased by turning off the WiFi connection, but the WiFi was quicker than me and erased that calendar, too, in a matter of seconds. Luckily, I still had the exported back-ups. Since the Sync feature is so fast, if you think you have a computer that's Calendar is not erased, I guess you would have to turn off your AirPort/router before opening up your user on the computer. That is a guess. I was not quick enough to disconnect from the WiFi while the user was already open

Nov 7, 2011 2:18 AM in response to mpinjp

Hi,


I've got the same problem with my IPhone 4S and my IPad1 (IOS5).

The calendar entries are synchronized incompletely. Some entries are syncronized, others not!

I sync the data with our ZIMBRA server, not via iCloud. ICloud services, which are enabled currently are PhotoStream and Find my device, all others are disabled, esp. the calendar sync.


After the fiasco with my MAC Book Air, which got a synching problem after upgrading to Lion, my only mobile device, which synced the calendar correctly was my IPad.

Now my IPad and my brand new IPhone 4S don't sync either...


Currently, my only reliable calendar is on our ZIMBRA server.


I'm very disappointed of Apple, it is a shame, that such a simple thing as exchanging some calendar entries can be such a big problem...


Pls get this fixed ASAP!!! I cannot afford forgetting an appointment because of a syncing problem of my Apple devices!

Nov 7, 2011 9:55 AM in response to rs9999

Hi,


Can you please clarify step 9:

9. Last hurdle: to convert the numeric value for dates into date format, use the Excel formula: =”1/1/2001″ + CELL/60/60/24 + OFFSET/24 where F1 is the cell which has date value in spreadsheet and OFFSET is the timezone offset from UTC (7 for California as of 10/16/2011).


I have the SQLLiteDB exported to CSV, but I can't seem to make sense of the above


Can you give me an example?


And where do you make this change? I assume in the 'Format Cell' section. Do you go to 'Custom'?


Any help would be greatly appreciated! Thank you!!!!!!

Nov 9, 2011 10:27 AM in response to eiker

Unfortunately I believe my suggestion would only help if you were to set it to all events before syncing your events on iOS 5. I was able to do a restore on my wife's phone and then disable syncing while installing iOS 5. Then I set the "all events" setting and then I set her gmail account as her primary calendar.

calendar data missing on iphone after ios5 update

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