Good job overall. Check my suggestions below. Also remember that some verbs like enjoy are always followed by gerunds (eating, walking,etc) others are followed by infinitives (to eat, to walk, etc), and others like prefer can be followed by both. See here (http://grammar.ccc.commnet.edu/grammar/verblist.htm) Also, be careful about run on sentences (sentences that keep going with too many ideas) and using commas. Remember a complete sentence has a noun, verb, and expresses a complete idea. 1.I bought it when I lost the last mobile phone. 2. Actually, somebody stole it from the pocket of my jacket, so I decided to buy a mobile phone which has everything that letS me communicate with my friends and relatives. 3.It’s important if I’m waiting for a call ABOUT a job. 4. I prefer TO send/SENDING text messages. 5. It’s a way to have a long conversation and use emoticons to express how I feel. 6. I enjoy listening TO music, WATCHING videos and my mobile letS me record too. It has internet where I can check my e-mail, download ringtones, etc. 7. My mobile phone is really important to me. 8. It’s like my second head because it has a block note to write notes and I can program the alarm to remind me OF important dates. 9. Of course I enjoy wakING up with my favorite song every day.

I couldn’t live without my mobile phone. I bought it when I lost my last mobile phone, actually somebody stole it from the pocket of my jacket. I decided to buy a mobile phone which has everything. It lets me communicate with my friends and relatives. It's even important if I’m waiting for a call about some job. Although I prefer to send text messages, calling is a way to have a long conversation and using emoticons to express how I feel. I enjoy listening to music, seeing videos and my mobile lets me record, too. It has internet where I can check my e-mail, download ringtones, etc. My mobile phone is really important to me, it’s like my second head because it has a block note to write notes and I can program the alarm to remind me of important dates, and of course I enjoy waking up with my favorite song every day.

Post it using Notebook.

"I couldn’t live without my mobile phone. I bought it when I lost the last mobile phone, actually somebody stole it from the pocket of my jacket, so I decided to buy a mobile phone which has everything that let me communicate with my friends, relatives even it’s important if I’m waiting for a call of some job, although I prefer send text messages, it’s a way to have a long conversation and using emoticons to express how I feel." This sentence is waaaaaaaaay toooooooo long. Furthermore, you've used the word "mobile phone" three times. Try forming shorter sentences, and use pronouns in place of repeated nouns.

1- "although I prefer send text messages" should revised to: "although I prefer sending text messages" prefer doing sth. / prefer to doing someting, ... prefer is a verb. (vt/ vi) and in this sentense, you could not use send and making the sentence two verb. 2-"and my mobile let me to record" should be: " and my mobile set me record" let sb. do sth. 3- In the last sentence, "I enjoy wake up...", should be "I enjoy waking up..." enjoy: vt. enjoy + n./v-ing. I learned English as my major in my university, and I want to start learn Spanish, hoping could help each other.....