altairfr-huawei

very cool and improve my experience on mate8,and thanks so much! and now i use " lineage-16.0-20250227-UNOFFICIAL-treble_arm64_avN.7z" to flash my mate8 with emui8, everything is ok except the sim card and internet service which are both unavailable. it should be the baseband's problem,so i get huawei official rom and find four files "modem.img/modem_dsp.img/modem_dtb.img/modemnvm_update.img" mate8 is a aonly device,so i try to use "fastboot flash modem d:\modem.img",the result is "writing failed,remote command not allowed" i've unlocked bootloader,and don't know how to solve the problem,i can't visit xda forum recently,so i post it here and hope you can tell me any advice please? thanks again!