hi all im new to this and well i had a running sb5100 modem and it was working fine til it went out a month ago. i unplugged it one day to move it and it went out like the lights wont go on anymore it just keeps flashing 1 light. it was running on sigma x2 firmware. i tried buying a usb jtag on ebay and itried to flash it iguess? but i dont know if im doin it right. can somebody help me? like it wont connect to the modem or someting it doesnt say 3448cm or something it just shows 000s. can somebody show me how to fix this and get it back up and running id appreciate it. thanks. ive been reading around and trying to do this on my own for awhile and i cant figure it out. newbie.

well that says it's not seeing the modem
does the software say if the usbjtag is connected in the bottom corner
who soldered the pin header is it good (and the stupid question is the cable the right way round)

um yea i got blackcatusb build 281 it says its connected in dfu mode. like the first time i connected it to my computer it wasnt doin anything and i looked around and somewhere it sayd to download atmel program so my computer can recognize it. (iono if i was suppose to do that or not but yea.) now it connects but not to thhe modem i guess. it doesnt have the sb5100 tab either like i see on videos

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oh and i dint solder the pins in i bought solderless pin and punched it in. does that work?

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it says its
connected in dfu mode
flashmemory type :Atmel Avr Flash

and thats where im at not sure wat to do next. but yea im using a solderless pin. do those work?

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oh n what do you mean is the cable right way round?

ahhh so it's a blackcat usb not a usbjtag (yes i know it's a jtag thats usb but thats not the same as a usbjtag)

anyways it's in dfu mode which means it ready for programming (the atmel chip on the blackcat)

1 click the avr firmware tab
2 load file (select the ejtag hex from the firmware folder)
3 click program
4 click load
5 connect your 5100 and try again

ohh i dint kno sorry ok i did that it load but i get nothin to the modem? is there suppose to be a sb5100 tab or somethin it doesnt load my modem either

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is there a command for that?

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oh yea i realized my modem turns on but shuts off. like the lights would blink once and turn off. whats wrong with that?

1 step at a time have you programmed your blackcat with the ejtag hex

yea i did it says it was successfully written i think

i hate it when people say i think, you need to be sure, how can i help you if you cant help yourself i cannot guess what your computer is doing i need concise information to be able to help you (rant over, ass mode off)


when you plug it in does it say ejtag instead of dfu mode? if yes we can move to the next step

when you plug the modem into the computer can you access the modem webpage? (power and ethernet only)

oh im sorry i dint mean to contradict myself. but ya its still on dfu mode but in the console tab it says written successfully thats why. but the status tab still says device in DFU mode. and no wen i plug in my modem i cant get the isp page or anything its jus a blank homepage screen. or do i need to type in an ip for the modem?

well you can do anything if the blackcat is still in dfu



if the above method wont work do it again but instead of clicking start application unplug the blackcat and move both dip switches accross