sim cards

Does MIUI / Androind store any data about previous sim cards that have been inserted into the phone? Can the current mobile operator access this info?

Hello I suggest being able to change different colour to the SIM 1 and SIM 2. Both SIM card are same colour and very, very small, and when received call, sometimes I can’t see if is from SIM 1 or SIM 2. I suggest to add possibility colour selection to indentify separate SIM, and the network...

I really like my Mi5, (Mi Global Rom) which I use for my business and personal phone. However, the icons which identify which SIM card received the text / call are very small and difficult to see. Is it possible to colour code them so it is easy for me to see which SIM received the call...

Hi All, I need a help please. Thing is I am not getting mobile signal whereas it was fine before. Now if I insert 2 sim cards then both of the sim cards does not works for an hour or more. Then suddenly signal comes to the SIM1 only and SIM2 says emergency calls only. But in SIM2 never coming...

Hello. Redmi Note 2 , rom global 7.2.3.0 stable . When an incoming call , the phone does not show on which of two SIM-cards , the call came in . Is it possible somehow to fix it . Thank you very much . saw . with the microscope :) p.s. Forgive me for my English