I tested the RadComboBox behavour with this online demo
with IPad 3.
When I touch the control input of the first three combos - the keyboard appears as expected and I am able to delete the selection with the backspace key.
The last one combo is read-only - so the keyboard is not displayed – and this is correct.
Additionally - could you please explain in more details what you mean by "user has selected bad entries"?
Are these entries displayed in control dropdown?
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