on the 9. step.. wipe data.. after that i didn't reboot.. and wipe again through the advance option data, cache, dalvik, and flash Bliss-2019-05-07, Magisk, Disable DM Verify.. tested working fine with IMEI and bluetooth.. but i'm using Disable_Dm-Verity_ForceEncrypt_12.15.2018.I had same problem of lost imei when using "Disable_DM-Verity_Forceencrypt_05.21.2019". This version has added making changes to fstab inside of nvdata, my solution to lost imei is to flash stock recovery and do factory reset. This formats /nvdata and imei was restored.