samsung UA40J5500 full internal memory problem+ checkUSB update is compatible with my TV or no?

[deldev]

Hello everybody sorry for my english.
Well, i have recently bought a UA40J5500, after few days, i have got a problem.
Everything ok but when i go to smart hub i can not find defaults apps (except navigator and two other original apps )
and I can not install any apps because the internal memory of 1Go is full, there is not free memory.
I tired reset TV and reset smart hub but still the same problem.
I tried test network. Everything is ok, the tv is connected to internet (i can use browser normally) but the test connection of smart hub show error: ERR08005
Is there any trick to free the memory? i just want back my free memory to install some apps.
Thanks in advance

[deldev]

I have made a hard reset, still have the same problem.
is there any firmware update for my model? how can i be sure that the USB update is compatible with my TV ?