This Firmware 1.7.0 0.9.1 v0001.0 Build 230526  Killer My Router i cant use any sim from 2023-06-07

Everyday check my email but no  any update from support Tplink (EU)

Please what i do right now im waiting someting From 2023-06-07

This Messege From Support 2023-07-06

Hi Customer,

Thank you for contacting TP-Link support! 

My name is ***** and I will be helping you through your concern. 

 I am sorry but can you tell us where and why did you get this firmware? This firmware is produced for the problem of MR6400 with India Jio Sim, it will change some default configurations which cannot be restored even if you downgrade the firmware after upgrading. I will apply for a beta firmware for you. It will take a few days. 

Thank you for your cooperation.