Model SC -06D not S6 as per title. I live in the UK, my cousin from Japan bought me a S3 as a present from Japan, its on the Docomo network (japanese network). When i insert my three simcard in it it says invalid sim. However it works on orange & 02 PAYG sim cards, i was suprised it worked at all. The phone is new out of the box and not even rooted. I dont want to root it coz of all the problems ppl have during the rooting process but if its partially unlocked i dont need to root it, i just dont understand why 3 wont work on it. Ive contacted 3 and they cant help, ive contacted docomo in japan and they are not very helpful as im not a docomo customer. Any suggestions will be appreciated
