Sign [Q] stock rom plum x210

hello guys.
mi phone is plum sync x210

OS Android OS, v4.2 (Jelly Bean)
Chipset Mediatek MT6572
CPU Dual-core 1 GHz
Internal 512 MB ROM, 256 MB RAM

install a boot image and my phone, load the image and then upload again enters a while in recovery mode. I gave flash from recovery mode and stays the same, I would like to help me by sending me the stock rom to restore my phone as soon as possible.

thank you very much in advance who can help me I will be eternally grateful
PD.: my email is for send link