ERROR need newer NBF FILE? IS THE UPGRADE REVERSABLE??

[HBERBOUT123]

im trying to go back the original qtek9100 ROM after downloading the test version , i get error message need newer NBF

any help?

[HBERBOUT123]

Is this process reversable? i have lott of issues with thie new push ROM i need to flush it with THE ORGINAL ROM?
Any help will be appreciated

[HBERBOUT123]

any help :?: :?: :(

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