@gu3d3s You have broken or missing bootloader on Your C50.
Here is dump from my C50v1:
https://mega.nz/#!qV42nBbR!fOUhrAPytF6NigRkMV8Z1oZzySHjlI1CUCJ0eCRqZ5I
ps. on mtd4 partition you have mac address in offset 0xf100, on mtd6 is radio calibration data, is better to use your orginal data.