I have Chinesse phone Cect T689 and flash with file from support with russ LP, phone work and more gluck (camera resolution, keys function and other...). Backup Original flash (E550_A5FRENCHBT_E550_GPRS_MT6226_S01.V3_0_01_3.BI N) link this:
http://rapidshare.com/files/17763642...5.B0M.bin.html
for compare.
Please upload on support fullworking file.