Files added through the desktop app to my new account haven't synced to my phone

Hi there, AbdullahN786-dev, thanks for joining the Dropbox Community!

There are a couple of things you can check, to make sure your files are syncing across your devices.

Assuming both devices are linked to the same Dropbox account, you'll need to take a look at your desktop app's sync status.

On your computer, hovering over the small Dropbox icon in your system tray, will give you the sync status and version of the app. Is the app "up to date"?

And can you access the files you uploaded from your account online?

Let me know if the above is true, but you still can't see your files in the mobile app.

Thanks!