Here the following link for all varients of P7 stock roms
cheers.....:o. You should translet in english as it is a russian site
Any other steps after you flashed it, was it flashed with the /eu switch? Have you tried a factory reset? Make sure you have a new SIM too.
Solved my problem at last.Thanks for support.wifi functioning now.i downloaded "WCNSS_qcom_wlan_factory_...