Update Firmware unknown error -1 D6400 model

[McKenna25]

HI,

Am trying to update modem version V1.0.0.56_1.0.56 after downloading update - message is unknown error -1.

If this because to many updates in between.  Wonder if anyone can help, please.

Chris

[michaelkenward · Accepted solution]

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@McKenna25 wrote:

Wondered if the update was to advanced the current one on the modem is the one l listed.

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That has certainly been the case in the past.

Try something somewhere in the middle – between your version and the latest – and see if that works. Then work your way up. Not one step at a time,  once you have got one update to stick, try the newest. You just need to find the one that unblocks the process.

You could also try a factory reset before and after the upgrade. Netgear also sometimes recommends a modem/router reboot before an update.

This loses your settings – you have to reconfigure the modem/router – but a large leap in versions probably needs that anyway.

[michaelkenward]

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@McKenna25 wrote:

Am trying to update modem version V1.0.0.56_1.0.56

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That is not firmware for the D6400.

If you visit the support pages:

Support | NETGEAR

you can feed in your model number and find the documentation for your hardware.

It will also have any firmware for your device.

Look for the model number on the label on the device.

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@McKenna25 wrote:

message is unknown error -1.

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Message in what?

Upgrade how?

Did you follow this?

How do I manually upgrade firmware to my NETGEAR router? | Answer | NETGEAR Support

[McKenna25]

Thank you for the info

[McKenna25]

The error came up when trying to install new update. Download fine when tries to update came up with unknown error -1.

Wondered if the update was to advanced the current one on the modem is the one l listed.

did follow what you said and tried but no help.

Chris

[michaelkenward · Accepted solution]

---

@McKenna25 wrote:

Wondered if the update was to advanced the current one on the modem is the one l listed.

---

That has certainly been the case in the past.

Try something somewhere in the middle – between your version and the latest – and see if that works. Then work your way up. Not one step at a time,  once you have got one update to stick, try the newest. You just need to find the one that unblocks the process.

You could also try a factory reset before and after the upgrade. Netgear also sometimes recommends a modem/router reboot before an update.

This loses your settings – you have to reconfigure the modem/router – but a large leap in versions probably needs that anyway.

[McKenna25]

Thank you for all your help.

Chris