Hey i recently bought 9 port gbe switch 1 fiber + 8 gbe , thats ACT FIBERNET Locked Router . I tried to find firmware but i am not get any , find UART Interface using serial it asking for root password . Finally i wiped spi flash chip , but new firmware wasn't working , its tottaly bricked , no even flashing leds only power led working
× RTL8197D
x 25l5406E
x Nt5tu32m16fg-ac
x ejtag pin
x uart pin
Your switch does not appear to use an OpenWrt supported chipset. Even if it does, it is certainly not supported now and would not help you in the near term.
The (bigger-) elephant in the room would be RTL8197D, search for lexra and you will get the gory details about it, but -yes- very, very, very unlikely to ever happen.