When I first saw “Upload Aborted or Timed Out.” I was trying to replace a screenshot for Divine Office Mac on the iTunes Connect interface for the Mac App Store. But googling around I learned this also applies to iPad and iPhone apps. Here is how I solved the issue.
After trying the usual stuff (log out, restart, use chrome, use another copy of the file, select the file without using the search box in the open window…) I gave up thinking it must have been an issue on Apple’s side and that perhaps in a few days it would get corrected. I was wrong!
This problem occurs with all files over about 1 megabyte. Apple recommends using high quality PNG files, didn’t it occur to them that a 1280×800 pixels PNG depicting a Mac App would easily get over 1MB?
Well here is the solution: save your art in JPEG format. Even at maximum quality (using the “Save for Web” feature from Adobe Photoshop), these will hardly get over 1MB in size.


No.I don’t think that’s the problem since my file only get total 200KB or more but no more than 1 MB but ITC still have this error.This silly error is driving me crazy!
Have you tried to save the image again in another supported format? (JPEG, PNG) Perhaps there’s something in the file it’s not liking.
Good luck and let me know how you manage to solve this!… I do know how frustrating this can be!
Hey Mauro,
Thank you so much for your tip!
Jackie- I received the same error message after re-sizing and re-formating as well. But then I retried after each error and it just worked. Hope that helps.
[...] When you're uploading screenshots to iTunes Connect, you may run into the error "Upload Aborted or Timed Out". This can be very frustrating if you're on a slow connection. Sometimes, retrying the upload may succeed, or converting the files to JPGs. [...]
[...] When you’re uploading screenshots to iTunes Connect, you may run into the error “Upload Aborted or Timed Out”. This can be very frustrating if you’re on a slow connection. Sometimes, retrying the upload may succeed, or converting the files to JPGs. [...]
[...] frustrating if you’re on a slow connection. Sometimes, retrying the upload may succeed, or converting the files to JPGs.This is not ideal: we’d like to be able to upload nice hi-res iPad screenshots, even on a [...]
Please note there is another solution to this issue: it appears that a javascript check is incorrectly causing the upload to time out after 10 seconds. We can override this function at runtime. Paste the following code into your browser’s address bar:
javascript:LCUploader.prototype.checkUploadHeartbeat = function() {};void(0);
This overrides the function with an empty one. Now we’re able to upload larger files with no issues.
Source:
http://www.reigndesign.com/blog/fixing-upload-aborted-or-timed-out-errors-in-itunes-connect/