Hello, I have some troubles with installing firmware on it. Yesterday I tried to comeback to factory fw and made some bugs probably in console commands or maybe choose wrong image file ( I'l attach some screenshots of my steps with killing a router).
Now router is starting to twinkle with all the lights together if just to push power button. But if you push the pwrbtn and reset button together (for a few seconds) it will start TFTPD and will be waiting for a firmware from host 192.168.0.66. But all firmwares I tried to upload - caused a reboot and just twinkling... So, is it real for this brick to be repaired? Thank you.
Where from do you have the "247"?
Could this be a typo of 257?
# dd if='wr740nv4.bin' of='wr740nv4_withoutboot.bin' skip=257 bs=512
Thank you for your tip, but there is the same behavior after flashing through tftp with this file. I will try to cut other firmwares for my router.