Hi! I’m sorry to hear you encountered a server error when trying to make a mobile deposit with the Brookline Bank app. Let's work through this together to get it resolved.

To start, can you tell me if you’re connected to a stable internet network (Wi-Fi or cellular)? Also, did the error happen immediately after submitting the deposit or at some other point? Knowing this can help pinpoint the issue.

Meanwhile, here are some steps that often help with mobile deposit errors:

1. Check your internet connection: Make sure you have a strong Wi-Fi or cellular signal.

2. Close and reopen the app: Sometimes restarting the app clears temporary glitches.

3. Restart your iPhone: A simple restart can resolve minor software quirks.

4. Make sure the app is updated: Go to the App Store and confirm you have the latest version of the Brookline Bank app.

5. Try depositing a different check (if possible): Sometimes the app has trouble reading the check image.

6. Clear app cache (if applicable): On iOS, you may need to reinstall the app to clear cached data.

If you’ve tried any of these already, let me know which ones, and if the problem persists, we can look into more specific account or server-related issues. Also, I can check if there are any known server outages for Brookline Bank’s mobile deposit system right now.

Could you update me on these points? That way I can guide you best!