Try this PhoenixTool method when the /writeromfile and /writehdrfile commands are not give you any result. WARNING! I am taking no responsibility of any damage caused by the following NOT TESTED procedure. Your comments and suggestions would be greatly appreciated. The complete re-flashing process will take no longer than 60 maximum 90 seconds. A USB drive with an activity LED can confirm that the BIOS flashing process started.
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Simply follow this procedure to re-flash failed BIOS update on a Dell Inspiron (n5010 model in my case) laptop. This is the latest version of the How re-flash the corrupted BIOS of a Dell Inspiron Laptop article.