LG Electronics interview questions

I only had a phone call with the direct manager that was disconnected in the middle of talking about myself due to no battery which was unprofessional at all. After that I had a text with people who was not in my department to test my ability which was also weird

Totally 3 rounds of interview the first one is amcat and the secondone is Operationals round and 3 round is mangaerial round and 4th is Hr Round Salary discuusion 3.Hr Round