Chosen Solution
How to change a phone from a single sim to a double sim phone
Josphat Mungai potentially only possible if your Samsung let’s you convert to a dual Sim card setup through it’s firmware etc. There potentially will be issues with the IMEI etc. so you are the one with the phone and give it a try. Use something like this Video as well as a good discussion on that topic over here Conversion parts for your phone maybe available on here
