Hi, I am trying to get a third party cell phone from ebay from Hong Kong to work on our unicel account. My son broke his phone, bought this one, thought it would work, but gets "no service" Here's what we have done: (the instruction book is all in chinese). I am getting attempted help from the seller in china but he has given up on us I think. Here is our progress: My son put his old sim card in the phone (his sim card works in my phone) and gets "no service" I asked to return the phone and the seller is very helpful. He replies: Maybe there is wrong of the phone setting. Input: *#3646633# , just like calling, then you can setup the frequency. It really is a Quad-band phone, it can be used worldwide. I hope to solve this problem before you send it back. ________________________________I replied: I dialed the code and changed the Band select from AUTO to 850/1900. We still get no service. Where do we go to select Quadband? __________________He replied: Thanks for your help. It support quad band, but only support dual band at same time. so you can select which band you want. And there is 2 SIM slot, can you try to put the SIM to another slot. Thanks again. ____________________I replied: Thank you. I moved the sim card from the top to the bottom slot and tried a call but it said "Emergency call only" I do not understand what you mean by "you can select which band you want". Do I need to select Quad band somewhere, and if so, how do I select it? Thank you ___________________ I think he is ready to give up on us and accept a return, but does any one have any ideas? It does have English on the phone itself.