butaford Good day! I decided to upgrade my router to the fullest) - change the flash drive (I’ll put 16 megabytes, w25q128fvsg is available) and increase the RAM (up to 64 megabytes, I found samsung k4h511638d-ucb3 chips, I think it should be a good fit), well, and a USB port. As I understand it, in order for these changes to work correctly, you need to make changes to the firmware (a couple of lines for each change in the necessary files), and some other packages to install.
There are a couple of questions:
There is a ready firmware
16M flashfor the desired device. Is it possible to flash it on a new flash programmer, solder, and then update the firmware from the router to the latest firmware
OpenWRT device pagesand make all the necessary changes?