You need to go thru the NO CA error process with a RJ45 cable and USB Cable to the Service port, please read and do as explained on the Tutorial on link below,

Tutorial : http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=15214

To do this job of fixing the box, you need to use JapharFlasher.

JapharFlasher : http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=2012

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