Mobile phone as USB?

Moin on my TV is that I should pull the update data from the network onto a USB stick because I have no laptop and no USB stick, I wanted to ask if I can load the data onto my cell phone and then onto the TV

No, unfortunately that will not work

Unlikely. The cell phone could possibly be recognized as mass storage, but the update would end up in a subfolder, which you would first have to open in a file browser. Such updates usually have to. Are in the main directory so that the device can find it.

If you have an Android smartphone, a USB OTG adapter would be the choice. You can use it to connect USB devices such as USB sticks but also mice, keyboards and the like to your smartphone. USB sticks are already available for little money, so you can get the update safely on your TV.