How to update firebase document without update image

I have been trying to update firebase document with 2 scenarios as followings.

scenario 1 - update some text fields and also image >>> this one is ok. I can do. Because image path is in "Uploaded File URL".

scenario 2 - update some text fields without image >>> this one is not ok. I cannot.

I have been trying to search in google and in this community. But I found just some steps and I cannot map those steps to my application. I'm new to FlutterFlow.

I stuck at this difficult step for 2 weeks. Actually, I also stuck with other difficulty such as how to use NFC, QR code reader, print from mobile to wifi printer, other mobile features, and how to do add users/group in Google Authen or Apple. I think, it might be too advance for me on using no-code or low-code. Before I gave up with no-code/low-code. Could anyone please guide me to step-by-step guide on how to update document with and without updating image (with screen capture would be very helpful)?

1
2 replies