If you are having trouble logging into the CIH mobile app and cannot find a place to enter the SMS verification code on your iPhone, follow these steps to troubleshoot the issue:

1. Check for Software Updates: Ensure that your CIH app is updated to the latest version. An outdated app might not support the necessary features or could have known bugs. You can check for updates in the App Store by searching for "CIH Mobile" and tapping "Update" if available - learn more.

2. Verify SMS Settings: Confirm that your iPhone can receive SMS messages. Check your Settings > Messages and ensure that "Send as SMS" is enabled. Also, ensure that you are not blocking messages from unknown senders.

3. Restart Your iPhone: Sometimes, simply restarting your device can resolve temporary glitches, including issues with app performance. Power off your iPhone, wait a few seconds, and power it back on.

4. Reopen the CIH App: After the restart, open the CIH app again and try logging in. Ensure you are looking at the correct screen where the verification code should be entered.

5. Clear App Cache: If the app still does not show a field for entering the verification code, try clearing the app cache. You can do this by uninstalling the app and then reinstalling it from the App Store.

6. Check Network Connection: Verify that you have a stable internet connection, either through Wi-Fi or cellular data. An intermittent connection could affect how the app functions.

7. Contact CIH Support: If none of the above steps work, it may be best to reach out for assistance directly from CIH Bank support. They may have additional troubleshooting steps specific to your account or app version - learn more.

8. Refer to Online Communities: Users often share their experiences and solutions in forums. Checking platforms like Reddit for discussions about the CIH app can provide insights from others who faced similar issues - learn more.

These steps should help you with locating the area for entering your verification code or assist in resolving the issue if it's a technical glitch.