(Do at your own risk. I do not take any responsibility of any damages done to your phone.)
1.- Create Goldcard.
2.- Download Shipped Wildfire S ROM (in my case European version: http://shipped-roms.com/download.php...724_signed.zip )
3.- Rename file to PG76IMG.zip and copy to MicroSD (GoldCard)
4.- Turn off Wildfire S.
5.- Press: Volume Down + Power Button
6.- After detect the update, press Volume Up to install.
7.- When finished, press Power Button to reboot.
8.- Enjoy Wildfire S with Official ROM