Update SugarCRM CE 6.5.24 to 6.5.26 on SuiteCRM installation?

Hi there,
I tried to upgrade SugerCRM CE 6.5.24 to 6.5.26 on a SuiteCRM 7.8.x installation and ended up in a blank screen. Is there any chance to install the security patches or isn´t this necessary anymore. upgrading SuiteCRM to 7.9.2 doesn´t include these fixes either.
Thanks in advance

Should be some mistake in the upgrade, please switch on php errors and let me know what you are getting