How to edit Trade Me Store banner?

If it is indeed the Trademe Store banner you are wanting to change, you need to send the new one through by email to the TM Stores team to do it for you. You can't edit it yourself.

If you mean your profile photo, then go to your profile page in My Trademe, then click on the image and a dialogue box will pop up to change to a new photo.

Sorry, I didn't say it clearly. I want to update the product boot map of the store home page, which is the picture of the position above the store product category. I have not found entrance

Like I said above, email the Trademe Store team for anything to do with your Trademe Store setup. You can't make changes yourself, only they can. 

Thks