The Zyxel EMG2926-Q10A is 99% the Zyxel NBG6716, but the bootloader
expects a different product name when flashing over TFTP. Also, the
EMG2926-Q10A always has 128 MiB of NAND flash whereas the NBG6716
reportedly can have either 128 MiB or 256 MiB.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Attention: Kernel partition size has been enlarged to 4MB.
To switch, you must update to latest ar71xx-nand snapshort and flash the
sysupgrade-4M-Kernel.bin:
zcat openwrt-ath79-nand-zyxel_nbg6716-squashfs-sysupgrade-4M-Kernel.bin | mtd -r -e ubi write - firmware; reboot -f
You will end up with a fresh config if you do not inject config into the image.
The NBG6716 may come with 128MB or 256MB NAND. ar71xx was able to use all, but
ath79 can only use the first 128MB. Therefore the complete NAND needs to be
overwritten. If not, the old UBI may make problems and lead to reboot loop.
Access the real u-boot shell:
ZyXEL uses a proprietary loader/shell on top of u-boot: "ZyXEL zloader v2.02"
When the device is starting up, the user can enter the the loader shell
by simply pressing a key within the 3 seconds once the following string
appears on the serial console:
| Hit any key to stop autoboot: 3
The user is then dropped to a locked shell.
|NBG6716> HELP
|ATEN x[,y] set BootExtension Debug Flag (y=password)
|ATSE x show the seed of password generator
|ATSH dump manufacturer related data in ROM
|ATRT [x,y,z,u] RAM read/write test (x=level, y=start addr, z=end addr, u=iterations)
|ATGO boot up whole system
|ATUR x upgrade RAS image (filename)
|NBG6716>
In order to escape/unlock a password challenge has to be passed.
Note: the value is dynamic! you have to calculate your own!
First use ATSE $MODELNAME (MODELNAME is the hostname in u-boot env)
to get the challange value/seed.
|NBG6716> ATSE NBG6716
|012345678901
This seed/value can be converted to the password with the help of this
bash script (Thanks to http://www.adslayuda.com/Zyxel650-9.html authors):
- tool.sh -
ror32() {
echo $(( ($1 >> $2) | (($1 << (32 - $2) & (2**32-1)) ) ))
}
v="0x$1"
a="0x${v:2:6}"
b=$(( $a + 0x10F0A563))
c=$(( 0x${v:12:14} & 7 ))
p=$(( $(ror32 $b $c) ^ $a ))
printf "ATEN 1,%X\n" $p
- end of tool.sh -
|# bash ./tool.sh 012345678901
|
|ATEN 1,879C711
copy and paste the result into the shell to unlock zloader.
|NBG6716> ATEN 1,0046B0017430
If the entered code was correct the shell will change to
use the ATGU command to enter the real u-boot shell.
|NBG6716> ATGU
|NBG6716#
Signed-off-by: André Valentin <avalentin@marcant.net>
When upgrading a TP-Link Archer C7 v2 from ar71xx to ath79,
the 5ghz radio stops working because the device path changed.
Some people subtitute the unsupported QCA9880v1 in the Archer v1
with supported QCA9880v2 radio. Since the stock radio doesn't
work, so it's safe to apply the change also for the Archer v1
images as well.
Also this patch renames the migration file and variables from
wmac to wifi.
Signed-off-by: David Santamaría Rogado <howl.nsp@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[removed comment, added return 0 (not that it matters since uci is
clever, see 00-wmac-migration thread), reworded commit message]
