So I have had graphene on a pixl 8a for 7 months now and its been working fine, I've used 2 sim cards in 2 different countries and wifi with no problems. Yesterday I got another sim card for a 3rd country. The lady in the shop put the sim card in and did some stuff on the screen i couldnt see and now i have internet through the sim card but my phone refuses to detect any wifi network nearby, including the ones i have already connected to (and my laptop will connect to). The hotspot also stubbornly refuses to turn on; i press the button to turn It on and it automatically turns off straight away and just says 'error' - wtf has happened? Pls help me