To be or not to be

[Captain Hook]

We are trying to determine which is correct below or are both correct and is one preferred over the other. Any thoughts?

1. Joe will notify you when your device needs updated.
2. Joe will notify you when your device needs updating.
3. Joe will notify you when your device needs to be updated.

Thanks in advance.

[Milanya]

# 1. is grammatically incorrect.
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con·text - The part of a text or statement that surrounds a particular word or passage and determines its meaning.