Buffalo WZR-HP-AG300H flash error

[lonerider]

Hello.
I tried to flash gargoyle_1.12.0-ar71xx-generic-wzr-hp-ag300h-squashfs-sysupgrade over the 1.10.0 version that run on my router. After flash, I can't access the router interface. Diag led blink a time and turn off, Power led light green, no WiFi leds light on. Tried to ping device, respond as unreachable. Put the power cable (ping -t running) and after 20-25 sec. respond ping for 5 - 6 times and over unreachable again (power led will turn on green). I tried to flash again with tftp, but no results (.enc file and .bin file the same). Could you have some suggestions for me, please?

[RomanHK]

1) first try to hold the reset button approx. for 30 seconds - this should clear the setting.

2) you will probably have to flash the complete FLASH memory via tftp (and serial cable) - this usually happens by choosing the wrong * .bin file or switching from "OpenWrt Chaos Calmer" to the "LEDE" version.
https://openwrt.org/toh/buffalo/wzr-hp- ... ys_working

[Lantis]

Have you tried putting it into failsafe mode?
Did you tick "attempt to preserve settings" when upgrading?

[lonerider]

1) first try to hold the reset button approx. for 30 seconds - this should clear the setting.

2) you will probably have to flash the complete FLASH memory via tftp (and serial cable) - this usually happens by choosing the wrong * .bin file or switching from "OpenWrt Chaos Calmer" to the "LEDE" version.
https://openwrt.org/toh/buffalo/wzr-hp- ... ys_working

Hello.
Reset button seems like not working, no efect when push it!
Seems to be complicated to use serial cable (I have one) for me.

[lonerider]

Have you tried putting it into failsafe mode?
Did you tick "attempt to preserve settings" when upgrading?

Yes, I tick attempt to preserve settings, before click upgrade.
How could I put it in failsafe mode?

[Lantis]

Putting a router into failsafe recovery mode
Watch how to do it here
Note: As of Gargoyle 1.10.0, use SSH, not Telnet, to access Failsafe

And you shouldn't have preserved settings between those two versions. That is why it is broken.

[lonerider]

Thank you for your help. I restored it and it work now.
I have another one WZR-HP-G300NH running a version of LEDE (17.01.1). Could I flash directly with gargoyle_1.12.0-ar71xx-generic-wzr-hp-g300nh-squashfs-sysupgrade or need to restore factory (.enc file) before? I want to use both with same firmware version as master-slave. Thank you.

[Lantis]

It should be fine to flash straight to Gargoyle. Again, don't preserve settings.

[lonerider]

Thank you.

[lonerider]

How could I increase power over 16 - 17dBm for wifi emitter, if it is possible (19 - 20 dBm for example)?