How to back to original ROM from Android2.1 updating failed

1,Download the attach file ,extract it.
2,copy "dload" file to SD Card
3,Switch off the hanset ,then press "Volume Control Upper Key +End Key+ Power Key"
4:Showing successful,remove battery one second ,then power on ,waiting till the os start up

5,From www.huaweidevice.com, software block ,download the original 1.5ROM which you used,

6,Repeat the step 2 to step 4

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