Unresponsive screen

How-to
9

i did it do as follows

first= lv_obj_create(NULL, NULL);
lv_scr_load(first);
…
lv_obj_del(lv_scr_act ());

and then, when i needed change screen, i did it do as folows

second= lv_obj_create(NULL, NULL);
lv_scr_load(second);

its work for me…