Hello, below you can see my steps to get Qfield working. I don't use the QField Cloud option.

QField Desktop

I open my project with, my shape with points.

Which OSM layer I added.

Layer Propeties: "Fields".

Layer Propeties: "Attributes Form".

Layer Propeties: "QField".

Project Propeties: "QField".

To make a QField Package

Which folders I want to use, and click on [Create]

The Exported file.

The files copy I to my Android device, in de folders
\Samsung Note20 Ultra\SD-kaart\QField\photolocation\

The steps on my Adroid device

The text in the screenshot are in Dutch.

Open QField

Tick on "Open local file".

Tick on teh + at the bottom-right.

Choose for "Project import from folder".

Choose the right folder, and tick on "Use this folder".

Give Qfield access to the files.

Tick on the project file.

The project is loaded, and tick on the menu.

Activate the digitizing option.

Select a point on the map, and tick on the + (at the bottom-right.

Fill the form.

Tick on Save.

The point/feature is now added.

Problem is:

If I close Qfield, and open it again, I see the new point. But
if I clear the data and the cache memory of Qfield.
And load the project again, the points aren't saved.
I was advised to save it as a GeoPackage, But unfortunately this doesn't work either.

If I copy the project folder back to my desktop, And open the project. I don't see the added feature.

Can somebody tell me what I doing wrong??

I hope someone can and wants to help me. Thank you in advance.
You can send me a message to :jelleruben@gmail.com