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As Cookie notes, we don't currently offer this - firmware updates are now pushed to the devices from our end, rather than needing to be manually applied.
Thank you, this is another reason not to go with Vodafone...
1. Firewall can't be switched off
2. There are up firmware updates
3. Configuring custom router is an issue
... I don't see any reason to stay with Vodafone to be honest, even prices aren't cheapest
Sugestion to everyone - switch to another internet provider!