I am visiting Poland and want to get mobile internet. I bought 3 SIMs (Orange, Plus, T-Mobile) - all starter kits for 5 PLN. I guess they all should work (at least the T-Mobile starter says "activate by inserting SIM into phone and making a call" in English on it). I tried in a place where network was available for all 3, however I could not register a single SIM onto network - do I miss something here?
Seems like it is necessary to activate the SIMs somehow... but I dont know how. I think all the starters include few prapaid PLNs for services - data or voice. The phone should register onto network to receive calls at least, but it does not...
I tried with Samsung J5 and Samsung S3 mini. Here are the screenshots I got (same for all 3 SIMs) - funny one message is in Polish even though the phone's language is English: