iPhone is disabled connect to Itunes error

Dear Apple Community,

I'm one of the iphone 6+ user and i'm having some serious problem with my phone.

In the past I used only ios 9 until now for my phone without any upgrade. Suddenly, my phone is slow down and freeze many times and I decided to update it to the newest edition which is 11.4.1

However, my phone stuck at recovery mode on itunes with apple logo loop forever and itunes does not want to update or restore my phone at all (newest edition of itunes has been installed)

I decided to install Dr Fone to fix my phone and update it to the latest edition. However, after showing the apple logo, it appear those words "iphone is disabled, connect to itunes". Itunes never recognize my iphone anymore and I keep restoring my phone on the app Dr Fone and problem cannot be solved.

Is that my phone turn into a brick or something? Can you guys give me some answer please? 😟

By the way, our country does not have Authorize apple store or genius bars so I would like to solve the problem with you guys. thank you