Help getting back to stock! topic

Guyes i need to sell my phone so I can buy M8

I someone who want it but I cant get back to stock!

I relocked..

but i'm getting error message trying to install this RUU

RUU_M7_UL_JB_50_HTC_Europe_1.20.401.1_Radio_4A.13. 3227.06_10.27.1127.01_release_308001_signed_2_4

Im from the Netherlands and this is te error message I get: