# SA30 build 705 version 1.33 **URL:** \ **Category:** Software\ **Tags:** firmware\ **Created:** [August 22, 2020, 5:41pm UTC](https://arcam.discourse.group/t/sa30-build-705-version-1-33/129 "2020-08-22T17:41:36Z")\ **Posts on this page:** 1\ **Showing post:** 38
**Author:** ![jvs1](https://yyz2.discourse-cdn.com/free1/user_avatar/arcam.discourse.group/jvs1/32/10_2.png) [@jvs1](https://arcam.discourse.group/u/jvs1)\ **Post date:** [September 15, 2020, 2:33pm UTC](https://arcam.discourse.group/t/sa30-build-705-version-1-33/129/38 "2020-09-15T14:33:07Z")
> [@Floyd](#): > > there is (according to the support) no other way to avoid the SA30 from updating than to disconnect the amp entirely from the internet… Yes there is, DNS blocking or simply deny all internet access to the SA30. Refer to next topic. > [@How to block SA30 firmware updates](https://arcam.discourse.group/t/how-to-block-sa30-firmware-updates/155): > > This post describes how to block the (automatic) firmware update function of the SA30 by using the [DNS blocking](https://en.wikipedia.org/wiki/DNS_blocking) technique. There might be various reasons to block these firmware updates and stick to an old firmware version. The SA30 contacts an Arcam host on the internet which serves the firmware updates. DNS blocking makes it impossible for the SA30 to retrieve the ip address of this Arcam host. The free DNS blocking software used in this article is [AdGuard Home](https://adguard.com/en/adguard-home/overview.html). There are other free alternati… --- _[View the full topic](https://arcam.discourse.group/t/sa30-build-705-version-1-33/129)._