Black blocks in my Camera Roll

Uncheck the sync photos option in iTunes and re-sync.
Then re-check it and sync again.
The Library wil be updated and you'll be back to normal

Many People (myself included) are experiencing this. Turning the phone off and on resolves (for me)

Hopefully will be fixed in next update.

Since iOS 4.0.1 made my Camera Roll thumbnails go black, I had no choice but to pull all pics off my camera roll and into a folder on my desktop (PC) that I sync via iTunes. So now all photos that were previously in the camera roll are now in another album/folder. Not a big deal.

All geotags from the camera roll pics were retained and all pics in this new album/photo are correctly represented in 'Places.'

I'm having the same problem. Sadly, ALL my iphone problems began after OS 4. I had an error when I switched over to 4 which caused me to lose everything on my iphone (most importantly my calendar). NOW I am getting that black block in almost half my camera roll (all taken with the iphone cam). I've synced, shut off, shut on, rebooted -and nothing is fixing this issue. Help!

I have the exact same situation. I downloaded the newest 4.0 update and when I synced, my camera roll shows alot of black squares. They are the photos taken by the camera, not ones downloaded from email.

NO official answer from Apple yet? Someone said that they want us to upgrade and buy iPhone 4 ... I don't want to, yet.

This is happening to a lot of people. There are multiple discussions on this issue. So far all the tricks haven't worked for me. It was a bug that apple released with the last update that was just supposed to be for the signal strength. They need to have better quality

Me too. Using the camera sometimes leads to a full reboot as i press the 'take photo' button.

I had the same problem with the black blocks after upgrading to iOS4 on my iPhone. The reason for the black blocks is that the thumbnail images for those particular images have not been created when the Photo Library has been updated to iOS4. I followed the advice on a couple of blogs and fixed the problem.
1. I downloaded iPhone Explorer free software ( http://www.macroplant.com/iphoneexplorer/) so I could view the photo data folders on my phone. I could see that the thumbnail images were missing.
2. I followed a slight variation on the instructions on this blog. ( http://blog.mbentley.net/2010/06/iphone-ios-4-upgrade-restore-lost-pictures-in-c amera-roll/)
3. First I copied the Photo Data folder by dragging it from the iPhone Explorer window to my Mac desktop.
4. Through iPhone Explorer I deleted the info.plist file in the Media/PhotoData/MISC folder.
5. I also deleted the Photos.sqlite and PhotosAux.sqlite files in Media/PhotoData.
6. I then rebooted the phone and launched the Photo Library.
7. The Library rebuilt it's self again and recreated the thumbnails.
8. The problem was fixed!!! Thank you M Bentley!
I hope this helps - this has been bugging me for 2 weeks.
Regards
Alijm23

Worked for me.
Thanks Alijm23

Message was edited by: jack_viking

Awesome. Worked for me as well! This is great since it's been bugging me since the 4.0.1 upgrade....

I'm having the exact same problem and nothing fixes the problem. I cannot delete the black spaces and resetting does nothing.

I did exactly what you said and it did not eliminate the problem. We've got a bonafide bug here.

I have this problem occasionally on my iPhone for with ios 4.0.1, and I also had it with 4.0 as well.

I used to have a regular 3G, and I never experienced the problem. I did update that to 4.0 before I got rid of it but it made it so slow that I downgraded it with a special program/procedure.

I also have a problem on the iPhone4 where the camera shutter will sometimes be stuck closed. This also causes apps that use the camera to malfunction. It's fixable by rebooting the phone.

Seems very un-Apple like buggy to me!