broken smart phone

My smart phone broke down last night. I was using the face book application and suddenly it freeze. I did not know what to do so I went to bed hoping it will be fine in the morning. However, it was not working when I woke up this morning. So I decided to go to the nearest docomo shop. I tried to use my phone forgetting that it was broken. I noticed how convenient it is and how much I was relying on to it. I turned on my computer and looked for the shop. There was one next to my nearest station. I went there in the morning and it was fine. I can use it with no problem now, but my phone is the only way I can communicate with my family, so I was really worried when it was broken. I hope it would not happen again.