====== Applying patches to your system ======

Sometimes you may encounter bug, which are inevitable thing in modern quick development cycles. New firmware releases happens at certain periods, but in the interims you may get bothered due to some bug. 

To handle this, we developed a patch mechanism, to minimize possible issues. The process is similar to firmware upgrade with the code - you just get the patch code and apply it. 

===== 1. Getting to the patch page =====

Depending on your firmware version there are 2 possible methods to getting to the page. Both methods require **admin** rights to do this operation. 

==== Case A. Older firmware which don't generate link to patch ====
In this case you have to enter right URL in the browser address field. 
<code http>
http://192.168.1.221/setup/patches.php#E4477663DB0E3CA51906E1F30127F5820D6DBA75
</code>
Here //192.168.1.222// is your WebHMI address and //E44...75// is the patch code you obtain from the service. 


==== Case B. Newer firmwares which create neccessary link ====

The links to patches (if your system requres it) are located on the About page:

{{:maintenance:patches:get-the-link-to-patch.png?direct&800|}}

===== 2. Checking and applying the patch =====
Press //Check// button to check the patch. 

{{:maintenance:patches:check-patch-number.png?direct&800|}}

if the patch has been check, //Apply// button will become available. 

{{:maintenance:patches:checked-patch-cropped.png?direct&200|}}

In case of failed check you may see similar message: 

{{:maintenance:patches:patch-check-not-passed.png?direct&800|}}

After successful applying you will see the following message: 
{{:maintenance:patches:the-applied-patch.png?direct&800|}}