Succesfully Update 10.5.1.A.0.283

[Hennie1652]

I cant update the new software on my phone.  Sony PC Companion tries to prepare my PC and then fails, saying the error is a 1200 error. Please help me.  Hennie.

[Thommo]

Are you running a 64bit system or Windows 8/8.1 as this is often the cause