Ok let me start on a script for this device ,,, you should not be trying to write to this device with any other script , you could end up bricking the device. Wait until i post a script here for you to test.
Ok try this "TEST" script. I do not have a SBG900 to test this on , so i am relying on you for feedback . First of all make sure you have a working backup of your modem before you proceed .
Goto your scripts folder and open the Autorun.ini file with notepad and add this line 334817F:SBG900.bcs:SBG900 then save it.
Once you have added the attached script into your script folder , when you start the device and software , you should then be able to choose the SBG900 from the drop down tab.
I have a bricked sbg900 and i use blackcatusb, i flashed the modem
With a firmware and it got bricked, i had a backup of the original firmware and still bricked, 3 yellow lights, after 5 secs the other light doesnt came up.
I can read the 4mb firmware on the modem so the script i think its working, but i dont know if the
Script supports writing 4mb firmware...
Did you make a backup before you flashed the device ? I do not personally have one of these devices , but i believe there may be issues writing to the device , but as people did not come back to respond to questions it is hard to find the problem.
If you have a working backup try flashing it via the flash tab and see what it says in console tab.