# B-3.2 (BTC-Only)

BTC-Only firmware B-3.2 includes the updates below:

* Fixed the transaction failure issue due to large amount of UTXO
* Added a button to un-hide characters when entering a passphrase/password
* Lowered the minimum number of characters for passwords to 6

Download the latest firmware [here](https://keyst.one/firmware).

Tutorial for firmware upgrade:

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