Rooted mobile, IMEI bypassed. Banking apps will not work, but online apps like bKash and Nagad work fine. Uber app will not work. The mobile must never be factory reset; doing so might restore the previous IMEI or turn off the network. Otherwise, you can use SIM cards without any issues. It will run smoothly without a factory reset, and everything else is OK. Battery backup is good, Alhamdulillah.