Regarding the firmware for the devices Drive & Drive Smart 40/50 and Drive & Drive Smart 60/70 the RGN file can be successfully flashed without HWID written into Ldr.bin and fw_all.bin components in it, so you can flash your patched RGN with HWID 0.
No problem, as usual make the NV backup before flashing.
Drive & Drive Smart 40/50 and Drive & Drive Smart 60/70 only have this HWID 0 in RGN.What makes this even more confusing is each model is different, and it's hard to follow a thread with dozens of different answers and not knowing what works in your scenario. I almost wish we had a subsection for each major Garmin type.
We are here to give support in case of problems We have threads for different models, see: [Only registered and activated users can see links. ] but this is the Patcher thread: easier and faster to get help here.