Currently Being ModeratedSep 29, 2012 6:54 PM (in response to martinneep)
It seems that this update "hid" any previously created lists that were local to the device.
Here is how to fix your badges.
In the search box type a single letter - example C
You will see a list of all your reminders, even the hidden ones, that have that letter as the first letter of any of their words.
Any uncompleted ones should be on top.
Either mark them as Completed or if they are still pending, move them to a new list.
You may have to repeat this with several different letters until you find your task(s) that are causing the badge icon to be wrong.
Currently Being ModeratedOct 9, 2012 5:28 PM (in response to kindredlaugh)
This worked for me. Thanks Kindredlaugh. I had a phantom "1" alert showing on my reminders icon/badge but had no reminders showing in the reminder list. I worked my way through the alphabet using search as you suggested and found the hidden reminder that was coming in from my work Outlook Exchange. The reminder didn't have a due date (reminder date), so I gave it a date and then it magically appeared in the list.
Currently Being ModeratedOct 9, 2012 9:57 PM (in response to thechanclan)
I have no reminders, either visible or hidden, but I still have the phantom "1" badge. I'd be ok with deactivating the Reminder function since it has the bogus count and this bizarre 'hidden reminder' problem. Reminders should be explicit or at least visible. Truly disappointing as it appears to have no resolution I can find.
The problem appears in iOS6 on my 4S and my iPad2.
Currently Being ModeratedJan 29, 2013 1:44 AM (in response to martinneep)
Hi, I wanna share my experience with the wrong badge count.
I had all the task completed but even deleting from Reminders I had number 1 on badge stuck on the App. I had it for months since yesterday when I could reset the counter, here what I did.
1) Initially Reminders was synced with iCloud;
2) In Settings I set up "All Reminders" the Sync;
3) I turned off the syncing on iCloud (Settings Menu);
4) I launched the Reminders app and immediately in the Today I saw the very old task (hidden until that);
5) I deleted the hidden task and the wrong badge disappeared immediately;
6) I turned on the sync with iCloud and now it works flawlessy.
I don't know if it can help but I hope so.
Currently Being ModeratedJul 31, 2013 1:06 PM (in response to martinneep)
Had a comparible issue.
I had what looks like a kind of legacy configuration of an iCloud CALDAV agenda.
In the accounts management it showed like a calendar with a red top (So not the 'new' iCloud icon).
I have deleted that account with the minus button and this fixed the wrong count.
Hope this works for you too!