Is it possible to increase Samsung's limit on contact merging? On Samsung phones, at least I know on the Galaxy S and Galaxy SII, it is only possible to merge 5 contacts max. There is also an issue on the Google Code page of Android here, but this did not solve the Samsung specific problem. 

The suggested fix on XDA-Developers did not work with newer Android versions, and I'd like to stick with the official Samsung ROM.

Is there way to increase the limit on contact merging?
It is, if you have root Access.

Found the following solution on l0uy blog:

Open /system/csc/others.xml and add the following child to the &lt;FeatureSet&gt; parant:

&lt;CscFeature_Contact_SetLinkCountMaxAs&gt;30&lt;/CscFeature_Contact_SetLinkCountMaxAs&gt;


The 30 is the limit, how much contacts you will merge. choose what you want.

Works fine on 4.1.2.