@Nidanakavi 

Hi, you mean Tether App? TL-WR850N is a model tailored for ISPs only, that is why it might not support Tether App.

Please note that the names and versions you provided (Hardware Version: V7, Firmware Version: Hyderabad) seem unusual, and it's possible that there might be a misunderstanding or mistake in the information. Double-check the details by referring to the official TP-Link website or user manual.

Keep in mind that the information might have changed since my last update, so checking the latest resources is essential for accurate and up-to-date information.