System: Android 11
SDK Version: square_mobile_payments_sdk: ^2025.3.0
Crash Step: Use ‘SquareMobilePaymentsSdkPlatform.instance.showSettings()’ jump to setting page,then pair the bluetooth device, after device light show green. the app crash, after that,the app will crash after re-open. I try my app with Android 13’s Pad, it’s all goes well , And In Android 11 sandbox enviornment, it’s all goes well too. only crash when connect to production enviornment physic device with Android 11.
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In-App Payments SDK Quickstart
Build on Android: Reader SDK
In-App Payment Solutions
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For production do you have the application signature correctly setup? 
Hello,
App on a physical Android 11 device in your production environment crashes after Bluetooth reader pairing via Square settings, unlike Android 13 or the Android 11 soundbox. This suggests environment-specific factors, Android 11 Bluetooth handling, a device quirk, a subtle SDK bug on that OS, or production e-zpassmd resource constraints. Troubleshoot with detailed logs, a minimal test app, SDK release notes, the debugger, reporting to Square, device updates, and adb logcat to pinpoint the environmental or OS-level difference causing the issue.
Best regards,
Rose S.