Good afternoon, how can I fix the error that occurs in my 4S model A1387 which has been stuck in the block start, I wonder if you could send it to somewhere outside my country to fix or see the possibility of trading him, despite having no guarantee

Good afternoon, how can I fix the error that occurs in my 4S model A1387 which has been stuck in the block start, I live in Venezuela and do not get as repair'm not in the economic capacity to acquire a new one by the country situation , I wonder if you could send it to somewhere outside my country to fix or see the possibility of trading him, despite having no guarantee, because what I have about 3 years ago, I really did not want to lose my device; first of all, Thanks ...