# M-10.4(Multi-Coin)

The multi-coin firmware M-10.4 the update includes the following:

* Official integration with Core wallet
* Resolved the issue of random addresses getting automatically added
* Rectified the problem that prevented the selection of various networks other than Bitcoin, Ethereum, and Binance Smart Chain while syncing with the Keystone Companion App
* Fixed the unit display error during the Aptos transaction analysis

Tutorial for firmware upgrade:

{% content-ref url="../../getting-started/firmware-upgrading" %}
[firmware-upgrading](https://support.keyst.one/getting-started/firmware-upgrading)
{% endcontent-ref %}