I have quite a few details to share, so if you aren't experienced in this field or haven't lived in Japan, this post may not be worth the read. Anyway, i moved to Japan from Canada for 1 year. I brought along my unlocked iphone 5c, thinking i could simply get a contract without a device, or get a prepaid sim card. I first went to docomo, and they said that i am not allowed to use my canadian phone here (they went into settings -> general -> about -> legal -> regulatory and looked for some certificate which wasnt present). Anyways, i decided to go to softbank and see if they could help me,which they couldnt. I looked into B-mobile sims, but the data was terrible. I looked into sim rentals but the costs were too high. I impulsively bought a flip phone on a two year contract with softbank because i desperately needed call and text. I was now under the impression that my iphone 5c would simply not work in japan due to some technical problems, but later on, my friend let my borrow his docomo sim card in his docomo locked iphone to see if my iphone would work here, and it did. At this point, i need to find a way to transfer my existing plan (the sim in the flip phone) to my iphone 5c. the problem is that the flip phone doesnt use a nano sim. I went to two different softbanks and asked if i could get my current sim exchanged for a nano sim card. In the first softbank, i was rejected after i told them my phone was canadian. In the second softbank, i was told you couldnt get an unlocked iphone 5s in japan (this was probably due to a communication error, as i cant speak japanese). So i need help. I could just cut down my sim card to nano size, but i will leave that as a last resort. Can anyone please help me out? i simply want to use my unlocked iphone 5c as a phone here. This issue has been giving me a headache for a week. Thank you.