A couple of days ago after an update on my Samsung Galaxy Tab 10.1 model P7500, the tablet does not start. It sends the initinal message "Samsung Galaxy tab 10.1" but it never statrts. It may drain the full battery without starting. I have tried even a factory reset but lt starts the process and never concludes the formatting /data step. What can I do, where can I take it to be recovered?. I am not an expert so I really need help

Thanks in advance and regards