Since youre on nb1 now, download a copy of the stock nb1 rom and download odin v3.09. right click on odin and run as administrator. Boot your phone into download mode by turning it on holding volume down, power, and the home buttkn. Plug your phone in and odin should say <added!>. Load the stock rom on the pda slot then hit start. Your phone should reset as a 100% stock phone with the custom splash gone.
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