Hi, im a beginner here. I've a w550i phone, my phone had a white screen problem. So i had it flashed from service center. Now it has no network!!! Now i want to flash it again. I used se software updater. Bt after 40%, it says update fail and my phone is dead. Plz help me. How can i flash my phone now? I tryed far manager bt cant use SEFP Plugin. What should i do now? Thanks in advance.