Phone stuck on Edge and wont connect to 4g


    Hello just got a new sim card in poland from tmobile for my grand prime since I got it 2 days it ago it's been stuck on edge even though I am suppose to be having 4glte I tried to do everything to get 4g going turning it on off removing Sim and battery change different networks got new sim card, nothing has work I also get a error 5 message when connected to wifi and online it said beca use of wrong Sim my us Sim is a tm9260 but can't find the tm on the new Polish sim card and the E is horribly slow

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