after search my iphone erase function, camera stopped working after restore

My iPhone was lost, so I selected the erase function in the iCloud.

Luckily someone found it and gave it to the lost items desk and after a call, I had my iPhone back.

Great option!!

But now it starts.

I restored the iphone only connected to the power socket and backup used from the icloud backup.

Then I found out my camera both front and rear where only showing black screen. When selecting to make a picture, video or any other nothing happend.

Also the battery life went down the drain

After about 12 hrs, the camera came on a bit....

Image was blur, a bit yellow colour and steady pink stripe on the left about 5mm from the edge.

This was at both front and rear camera

After 5 secs, camera image seized, also both front and rear.

Soft rest done, no fix

Restored iphone via itunes and using icloud backup, no fix

Restored iphone via itunes and select set as new iphone, no fix

Restored again iphone via itunes and using icloud backup, no fix

Pls help!!