Hi im trying to update but my Sony companion 2.1 says error 2003 you have do something diffrent with you hardware i have just unlock bootloader or that im trying to reinstall doesnt work if i do manuall flash i dont now wich File i need on my C603 im from sweden ??
You cannot update via OTA or PCC with Unlocked Bootlader, they will not allow you to do that. Then you have to flash via Flashtool v0.9.14 the latest 4.4 for your model from here.
I will recommend to use the Unbranded Global or Commercial one. Good Luck.
IF I HELPED DO NOT SAY THANKS, CLICK IT. My Evolution: Sony Xperia Z1 - UB + 4.3 Rooted + Deodexed, HTC HD2, HTC Diamond 2, HTC HD Blackstone, Nokia 7070 Prism, Qtek 9100, Nokia 3100, Motorola T720i, Nokia 3310, Sony Ericson PF 768 (Blue)
How Get Root on Sony Xperia Z1 with Locked Bootloader and the Latest Android 4.4
OK Google. Make Me a sandwich. How many times have you … more
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?