Instant crash on iPad1, iOS 4.3.3 with AIR 3.9.0.960 Beta

Question

I built my application just fine.
They also run perfectly okay on those devices:
- iPod Touch 5, iOS 7.0
- iPhone 3GS, iOS 5.0.1
- iPhone 4, iOS 6.0
- iPad 3, iOS 6.1.3
But it crashes instantly on iPad1, iOS 4.3.3
I tried to debug to see if there's any code that's causing this crash, but it doesn't even pass the connection phase.
As soon as I see the launch image, it crashes to home screen.
My application uses several ANEs:
- Milkman's GoViral, GameCenter, StoreKit
- Freshplanet's Chartboost, Flurry
- Adobe NetworkInfo
- StickSport's CanOpenURL
- StickSport's SilentSwitch (I guess I don't need this extension anymore..)
Here's a message from crash report:
Date/Time:       2013-09-27 11:32:01.966 +0900
OS Version:      iPhone OS 4.3.3 (8J3)
Report Version:  104
Exception Type:  EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x00000001, 0xe7ffdefe
Crashed Thread:  0
Dyld Error Message:
  Symbol not found: _OBJC_CLASS_$_NSJSONSerialization
  Referenced from: /var/mobile/Applications/783749F9-1136-4A50-A98F-5265EDEC6EBC/Test HD.app/Test HD
  Expected in: /System/Library/Frameworks/Foundation.framework/Foundation
in /var/mobile/Applications/783749F9-1136-4A50-A98F-5265EDEC6EBC/Test HD.app/Test HD
  Dyld Version: 191.3
I know there are only so little people who are still using iOS4, but they exists.
Is anyone experiencing the same issue on iOS4? or instant crash?

Answer 1

I checked the anes but there's no anes that are targeted higher.
They work fine with previous AIR SDKs.
However, it doesn't crash on iPad 1, iOS 5.1.1