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[SOLVED] Need help with fixing unknown model in LGUP

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Senior Member
Aug 24, 2009
I flashed the Fulmics ROM on my G6 and could not go back to stock using LGUP. Under Model and Port it shows "Unknown" and "Com 5, Fulmics" preventing me from proceeding.
I, however, managed to flash the stock rom from a zip provided in one of the threads. Still when I connect the phone to computer, LGUP says "Unknown" and "Com 5, Fulmics".
How can I fix this so that I can use LGUP again? (I also tried the Flashtool with no success)

Last edited:


Senior Member
Aug 20, 2013
Yes. I even tried another computer. It appears that something about this Fulmics rom is hard coded into the phone. The developer of the rom isn't responding so I don't know what else to do.

Well, I use Fulmics also and i can say nothing is hardcoded. When you connect your G6, check the device manager on your PC to be sure your phone is detected.


Senior Member
Oct 14, 2008


New member
Mar 7, 2021
Hola yo lo resolvi usando este tutorial
en el ultimo paso donde tienen que crear el common ddl, no lo hagan, solo descarguen el archivo ddl que proporcionan al principio de este post y lo pegan en la ruta especificada. Lo probe en mi lg h873 y funciono perfecto pude flashear y desbriquear mi telefono que se quedaba en el logo de lg

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