This sim card I’ve used one month only has one maximum two signal bars, no matter where I use and which kind of cellphone I use. Phone call was hard to make or turned off automatically, especially inside a building.
I got a callback from koodo supporter to reset network and to open the wi-fi call in the configuration. Now I can make phone call, but the signal is still weak (only with one bar) outside some time at downtown area.
What can I do? Is it a simcard problem? Do I need to change a simcard?