error :current vertion is not available for user.cant find matched cust for nt code

Hello

i have H815 bought in usa

i use to have V10b-sea-xx on my g4 after software update i dont have hebrew lang in the list
so i tryied to flash new rom ISR/ISRAEL V10f LGH815L

i got this error after boot anf i have the new verion but no hebrew

error :current vertion is not available for user.cant find matched cust for nt code mcc/mnc[FFFFFF]subset[56]

anyone can help?