Ok, your post is a bit confusing, I recommend cleaning it up a bit (maybe let a friend read through it if your English is a bit bad) to get some more replies. From what I understand, you accepted a disc update. After that, when you turned the wii on, it only showed a black screen. You can turn it on using the wii remote and savemiifrii is not working. Is that correct?
Anyway, power on your wii and see how many times the disc drive light flashes. If it quickly flashes twice, you can try this guide: Fully Brick, Bootmii/boot2 installed but No Nand Backup? Solution Here!. If it only flashes once, you can try holding reset when you power on the wii, to see whether priiloader works. If priiloader doesn't work, try savemiifrii again, and make sure you can press all directions on the d-pad (you need to open it to do so). If that doesn't work, then you can try sening it to Bad_Ad84 with a NAND back-up nd he will fix it, but not free.