How to return to the older software version 2.2.5 in ER605 V2?
Is there any way to revert to firmware version 2.2.5 on the ER605 v2? I've only been able to revert to version 2.3.0, and after that, nothing works, not via TFTP (which doesn't work), putting the router into recovery mode, or through the website. I need to install OpenWrt on it, and the only way to do that is by rolling back the firmware. Any ideas?
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Please note that the Release Notes state downgrading is not supported; if a downgrade is required, please contact Technical Support.

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Please note that the Release Notes state downgrading is not supported; if a downgrade is required, please contact Technical Support.

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I'm still searching for revert to 2.2.6
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why do you need to install OpenWRT on it? you will lose some functionality and also, importantly, Hardware Offload which will reduce throughput and switching capacity
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There is a way to do it, i even made a lengthy post about it on a related thread. If you earch you should find it
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Sorry but no
If you want to make youtube videos on unsupported things and maybe monetize it, you can put in the research effort
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@djwujek If you will find the way to rollback pls tell me :)
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