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The file has the correct sum but sysupgrade doesn't accept it.
The current and running image has been built with these settings :
CONFIG_TARGET_ar71xx=y
CONFIG_TARGET_ar71xx_nand=y
CONFIG_TARGET_ar71xx_nand_DEVICE_WNDR3700V4=y
any ideas ?
Warning without having access to serial uart bootloader or tested and verified failsafe tftp recovery procedures you are 1 step away from a (semi)BRICKED router!
Hi, I have flashed 21.02-rc3 on a netgear wndr3700v4.
sysupgrade did not work and left the router in a dysfunctional state, though the bootloader still worked.
To recover, I flashed the factory image via tftp.
I followed [[https://openwrt.org/toh/netgear/wndr3700#recovery_flash_in_failsafe_mode|these tftp instructions]], especially the subsection titled alternative advice.
[[https://github.com/jclehner/nmrpflash|nmrpflash]] appears to be a simpler tftp utility, but I haven't yet tried it.
I can confirm that flashing the factory image (21.02.0) via tftp after holding the factory reset button during a power cycle works. Once loaded, the firmware update dialog no longer complains about an incompatible sysupgrade image and it appears to make use of the entire flash area (102MB free after install).
hamelg:
I'm trying to upgrade my wndr3700v4 router with the image downloaded at https://downloads.openwrt.org/releases/21.02.0-rc3/targets/ath79/nand/openwrt-21.02.0-rc3-ath79-nand-netgear_wndr3700-v4-squashfs-sysupgrade.bin
The file has the correct sum but sysupgrade doesn't accept it.
The current and running image has been built with these settings :
CONFIG_TARGET_ar71xx=y
CONFIG_TARGET_ar71xx_nand=y
CONFIG_TARGET_ar71xx_nand_DEVICE_WNDR3700V4=y
any ideas ?
root@OpenWrt:/tmp# cat /etc/openwrt_release
DISTRIB_ID='OpenWrt'
DISTRIB_RELEASE='19.07-SNAPSHOT'
DISTRIB_REVISION='r11333-cc0b70467d'
DISTRIB_TARGET='ar71xx/nand'
DISTRIB_ARCH='mips_24kc'
DISTRIB_DESCRIPTION='OpenWrt 19.07-SNAPSHOT r11333-cc0b70467d'
DISTRIB_TAINTS='no-all'
root@OpenWrt:/tmp# uname -a
Linux OpenWrt 4.14.229 #0 Fri Apr 9 13:43:38 2021 mips GNU/Linux
root@OpenWrt:/tmp# sha256sum /tmp/openwrt-21.02.0-rc3-ath79-nand-netgear_wndr3700-v4-squashfs-sysupgrade.bin
dacbea4403807a104aac151f1d4973c16477b9095ba698b0f19a4ceaf8e2c38d /tmp/openwrt-21.02.0-rc3-ath79-nand-netgear_wndr3700-v4-squashfs-sysupgrade.bin
root@OpenWrt:/tmp# sysupgrade -n -v /tmp/openwrt-21.02.0-rc3-ath79-nand-netgear_wndr3700-v4-squashfs-sysupgrade.bin
Device wndr3700v4 not supported by this image
Supported devices: netgear,wndr3700-v4
Invalid sysupgrade file.
Image check failed.
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