Thanks aekhong for reply. This new FW still have problem. It shut down itself when routing.

I saw that there is text folder inside this file. There are 2 file name th_TH.glx & th_TH_TRF.glx. As to my understanding th_TH.glx will enable Thai menu for other countries device. Which I already had it but not the original one from 3770TH. What about this file th_TH_TRF.glx ?

Will it be possible to add this file into 3790T SG? Or only this th_TH.glx?