Hi,
I have downloaded lede-17.01.6-ar71xx-generic-tl-wr741nd-v2-squashfs-sysupgrade.bin (from https://downloads.openwrt.org/releases/17.01.6/targets/ar71xx/generic/) for my **TP-LINK TL-WR741ND rev 2 ** (as per /proc/cpuinfo), I'm currently riunning the ancient BARRIER BREAKER (Bleeding Edge, r36713) and nothing happens when I select the image and hit Flash Image... under System -> Backup / Flash Firmware (in Luci). I tried it from the shell too but got:
sysupgrade -v /tmp/lede-17.01.6-ar71xx-generic-tl-wr741nd-v2-squashfs-sysupgrade.bin
Invalid image, hardware ID mismatch, hw:07400001 image:07410001.
Image check 'platform_check_image' failed.
I understand that this means I should use the TL_WR740ND fw instead even though I get:
cat /proc/cpuinfo
system type : Atheros AR7240 rev 2
machine : TP-LINK TL-WR741ND
processor : 0
cpu model : MIPS 24Kc V7.4
BogoMIPS : 232.24
wait instruction : yes
microsecond timers : yes
tlb_entries : 16
extra interrupt vector : yes
hardware watchpoint : yes, count: 4, address/irw mask: [0x0ffc, 0x0ffc, 0x0ffb, 0x0ffb]
ASEs implemented : mips16
shadow register sets : 1
kscratch registers : 0
core : 0
VCED exceptions : not available
VCEI exceptions : not available
plus https://downloads.openwrt.org/releases/17.01.6/targets/ar71xx/generic/ doesn't have a v2 fw for the 740...