Hello Friends!!!! After a faulty nougat (Android 7.0) OTA update from Lenovo for LENOVO K6 NOTE (K53a48, code named KARATEP ), many of you have lost your 2G/3G network connectivity and only 4G data is working. Due to which you are facing issues with calling (NO calls can be made or received) . A friend of mine also faced this problem. He visited the service center, where they updated the software once again and still the solution was not found. They said that the motherboard is faulty and had to be changed. Finally he brought the phone to me and after doing a lot research over the web I have found a solution to the problem and would like to share it with all of you out there facing the issue. Friends, for this to work you will have to root this phone. There is no need for you to worry as after the connectivity is restored we will flash the stock firmware and your phone will no longer be rooted. This guide can be used by: 1) The people facing the above problem. 2) ...