Crash on iPad 2,3,4 devices 32 bit when open app

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Hi,

I'd be happy to help. Can you please provide some additional information:

1. What is the version of iOS on these devices?
2. What version of the Urban Airship SDK are you currently using in the app?
3. Please provide any crash logs or console errors you are seeing in Xcode that are generated when the app crashes or before. 

Thanks,

Jay M.
Urban Airship Technical Support

iPad 2,3,4: iOS 10,
and urban airship: libUAirship-6.4.0
The log crash i got through fabric.
As from 03/07 my app has got a lots crash report from fabric. But i don't change anything about urban airship.
https://gyazo.com/901f8cf71d6b7c1ad3792eef9a8f55ed
https://gyazo.com/4e7e55d5cd4e3fb09514fdd2bb2c2efa

I have checked sometimes, the crash has opened on 32bit devices as ipad 2,3,4, iphone 5,5c.
And on 64bit devices don't crash.

I have just updated to the newest urban aiship lib and then i haven't crash.

So is have your change what is has problem with 32bit devices.

Thank you and i looking for your forward. 

Ok, a few things that might help diagnose further:

1. If you are updating to the latest SDK (which is a good idea), make sure you review the migration guides, as you are updating from a very old version (from 2015). You can find those here.
2. The crash logs from fabric might not be what we need. The ones from Xcode's console would likely be more informative as to which lines of the code is causing the crash. 
3. 32 bit may or may not be the source of the crash, but it's worth mentioning that iOS dropped support for 32 bit in iOS 11, but since you are running iOS 10 and our latest SDK still supports iOS 8 and up, this should not be an issue. 
4. Lastly, it's also possible the crash is not related to our SDK. Do you have other libraries in this project? This is why looking at the crash info would help narrow it down.
   
   

Let me know.

Jay M.
Urban Airship Technical Support

Thanks for your suggestion and response.
I have connected devices to mac and tried to debug why my app has been crashed. But when i build app to devices through cable and debug mode it haven't crash anything. The crash only happen when i export ipa file and upload to store or diawi, and then install to devices.

Thanks for the update. 

If that is the case it is possible that the alternative installation is part of the issue.

A good way to test this is to upload the app through Xcode to your developer account and download it through TestFlight. If it doesn't crash in that case, then it is likely the issue is not with the app/code itself. 

Jay M.
Urban Airship Technical Support

I got it.
Thank you so much for your support.

The issue is likely related to compatibility with older iPads. Since the app works fine on newer models but crashes on iPads 2, 3, and 4, it could be due to memory limitations, deprecated APIs, or hardware differences. Check the crash logs for specific errors. The problem might involve memory usage or a particular API that’s no longer supported on older iOS versions. Testing on iPad simulators for those specific models in Xcode can help pinpoint the cause. Also, if you're working on other projects, like a jinx manhwa app or comic-based app, optimizing for older devices can ensure smooth performance across a wider range of hardware.