Netgear R7500 v1 can't install firmware after 12.2017 >24

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velles2003
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PostPosted: Fri Apr 10, 2020 9:18    Post subject: Netgear R7500 v1 can't install firmware after 12.2017 >24 Reply with quote
Hello.
vic here

on Netgear R7500 v1,

i tried to install the factory -ddwrt firmware that is linked in the downloads but it gave an error that is not compatible.
i could install an earlier beta, but nothing after december 2017 and larger than 24MB in size.

i thing it's a limitation from the router?
can somebody point out to a sollution for betas from 2019 - 2020! maybe it's working on some.

thank you!
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kernel-panic69
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PostPosted: Fri Apr 10, 2020 9:41    Post subject: Reply with quote
What method are you using to flash it? Through the webUI? Command line? TFTP?

https://wiki.dd-wrt.com/wiki/index.php/Installation#Flashing_Your_Router_with_DD-WRT_Firmware

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velles2003
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PostPosted: Mon Apr 13, 2020 7:18    Post subject: Reply with quote
kernel-panic69 wrote:
What method are you using to flash it? Through the webUI? Command line? TFTP?

https://wiki.dd-wrt.com/wiki/index.php/Installation#Flashing_Your_Router_with_DD-WRT_Firmware


i've tried web and tftp.
Web: from stock to ddwrt does not recognize the file as valid, from ddwrt 2017 to ddwrt 2019 fails (it starts flash and the router seems flashing but in the end it boots up the same 2017 version)

tftp: stock to ddwrt 2019 goes to bootloop.


maybe my answer is somewhere here: https://forum.openwrt.org/t/r7800-flashing-openwrt-causes-bootloop-bad-block-in-kernel-area/49608/4
kernel-panic69
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PostPosted: Mon Apr 13, 2020 8:02    Post subject: Reply with quote
Possibly, but you should try Method 3: Flashing with Command Line to see what the actual error is, or if that will work. Outside of that, the only other option to try is serial:

https://openwrt.org/toh/netgear/netgear_r7500

I found the following threads in the forum regarding this, it is not a "new issue", with no answer and have found no ticket in the system for it yet.

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316656

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=319706

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=314234

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BrainSlayer
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PostPosted: Mon Apr 13, 2020 10:53    Post subject: Re: Netgear R7500 v1 can't install firmware after 12.2017 &g Reply with quote
velles2003 wrote:
Hello.
vic here

on Netgear R7500 v1,

i tried to install the factory -ddwrt firmware that is linked in the downloads but it gave an error that is not compatible.
i could install an earlier beta, but nothing after december 2017 and larger than 24MB in size.

i thing it's a limitation from the router?
can somebody point out to a sollution for betas from 2019 - 2020! maybe it's working on some.

thank you!


the v1 seem to be indeed size restricted to 25165824 bytes. will take care of it in next release

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velles2003
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Joined: 26 Aug 2012
Posts: 4

PostPosted: Tue Apr 14, 2020 10:17    Post subject: Reply with quote
thank you.
will keep an eye out for next releases.
velles2003
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Joined: 26 Aug 2012
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PostPosted: Thu May 14, 2020 13:21    Post subject: update on this post Reply with quote
Hello
and thanks for resolving the issues with firmware size for R7500. installing works now on beta releases.
however, for anyone interested, there is no support for 5GHz band wifi for this router.
kernel-panic69
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PostPosted: Thu May 14, 2020 13:29    Post subject: Reply with quote
Did you reset nvram after you updated? I don't recall seeing that the 5GHz band being unsupported on the v1.
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alazium
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PostPosted: Sat Nov 20, 2021 17:24    Post subject: Reply with quote
Hello, can you tell me does R7500 V1 Supports 5G wifi on build 44715. Can't find information about it. R7500 V1 uses Quantenna chip for 5G.
egc
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PostPosted: Sat Nov 20, 2021 18:25    Post subject: Reply with quote
Build 44715 is old and obsolete.

Furthermore please do not hijack old threads, just start your own thread.

See the forum guidelines with helpful pointers about how to research your router, where and what to download, where and how to post and many other helpful tips:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087

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Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
kernel-panic69
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PostPosted: Sat Nov 20, 2021 19:36    Post subject: Reply with quote
Following up here. I was obviously ignorant to the fact that this device has a Quantenna chipset for the 5GHz, which is likely unsupported in DD-WRT due to lack of driver/firmware from upstream.

https://wikidevi.wi-cat.ru/Netgear_R7500

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=288421

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=312629

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alazium
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Joined: 20 Nov 2021
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PostPosted: Sun Nov 21, 2021 15:39    Post subject: Reply with quote
Thanks for help.
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