I got a Netgear Nighthawk X4 R7500 v1, and i installed OpenWRT 18.06.0 on it. When i press the power off switch, it won't start anymore. Then i need to reset it so it works again.
Do i need to shut down OpenWRT "properly"? I never had that problem with other routers and OpenWRT, e.g. the Western Digital N750...
When i shut down it with "poweroff" command in the SSH console, the problem is gone...
That's the old devicepage in the old wiki showing old information.
Please refer to the devicepage in the new wiki https://openwrt.org/toh/netgear/netgear_r7500 for more current information.
But what's that?
-> " Don't attempt to flash unless you have a UART serial device. You will brick it and cry."
???
I was able to flash it without rs232, and i was able to flash it back after a invalid DD-WRT installation. I've done the following things:
Press the reset button until the led blinks
Turn your computer ethernet card to 192.168.1.2, Subnet mask 255.255.255.0
Use the MS "tftp" from Windows 10 or a Linux one to upload the original firmware from Netgear
DD-WRT bricked it completely... but OpenWRT makes problems after switch off power... with OpenWRT, i can also press the reset button - after that i have a "clean", unconfigured OpenWRT
-> Question: Is it "normal" that i need to shutdown OpenWRT devices with "poweroff" in console?? On my other router, Western Digital N750, it seems i don't need to do that.
poweroff is always 'better' (on architectures where that works, ipq806x is one of them), but it shouldn't be required (and sometimes it's simply unavoidable) as OpenWrt tries to reduces writes as much as possible.
There are problems with NAND and ubi devices under investigation affecting multiple targets, but these aren't necessarily reliably reproducable (e.g. I had issues on lantiq && NAND (lantiq doesn't have a functional poweroff) a few months ago, but couldn't reproduce anything more recently) and not quite understood yet. Here it would be interesting to investigate what actually happens with a serial console (in my personal case files like shadow easily got corrupted by an unclean shutdown).
