my nano leaf panel turns white for a couple second then just goes black

Started by SHENGOD
Ef3e079b4da90f0edb6e0c1523d85eb9?s=128&d=mm

SHENGOD

my nano leaf panel turns white for a couple of second then just goes black but on the controller its says its one and I cant connect it to the app i tried to hard reset and soft but it just doesnt work