Code:
Sub LOCKED()
Private Sub Worksheet_Change(ByVal Target As Range)
Dim Rng As Range
Set Rng = Range("$a$1:$b$1")
If Not Application.Intersect(Target, Rng) Is Nothing Then
Sheets("Sheet 1").Unprotect
If IsEmpty(Target) Then
Target.LOCKED = False
Else
Target.LOCKED = True
End If
Sheets("Sheet 1").Protect
End If
End Sub
any suggetion will be appreciated
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