Trying to update Sharp MX-5141N firmware. SD card failed and no backup. I have file vrg2_MAIN_0300R2.sfu and vrg2_[ICUM]0400R200.sfu on the root of a USB stick. I put in a new SD card and the USB stick in the front of the copier. I have UPDATE DIP-SW on the MFP PWB set to on and SB boot set to on. When I power on the copier all I get is continuous startup cycling and never the CN update mode on the screen. Machine powers on and cycles through startup and then powers down and starts the whole process again. When I set the SB boot DIP to off, all I get is a blinking power indicator. Machine will not boot with any combination. Any help is greatly appreciated!
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