You have two ways,

- Flash a new image with JapharFlasher v1.1, that is compatible with your box (must be Sim2 image). But the DM800HDseV2 was mostly not supported by the Sim2 Team... so images are very rare to find, and not very stable. If there is a small button on the back of the box, you could use it to set the box in flash mode.

- Replace the Sim by a Japhar Sim, and hopefully it will work, if it still gives you the NO CA ERROR, it means you probably then flashed by mistake an original image. If you flashed a Japhar image your box will immediately restart with a Japhar Sim (if you provide the link to the image who caused this problem we could tell you exactly for which sim it is).

DM800HDse V2 Japhar Sim : https://jam3.japhar.com/japhar/index.php/product/dm800hdse-v2-nc3-japhar/
then you can use all images on the Japhar DM800HDse V2 section below : http://www.ourdreambox.com/ubbthreads.php?ubb=postlist&Board=49&page=1

JapharFlasher : http://www.ourdreambox.com/ubbthreads.php?ubb=showflat&Number=9476

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