My phone is broken.
Stress 'ROT-to'. Short, clear statement.
Use this to explain to people why you've been unreachable. Also useful in a phone repair shop ('centro assistenza') when describing the problem.
'Rotto' = broken (past participle of 'rompere', used as adjective). 'Il mio telefono è rotto' = my phone is broken. Related: 'lo schermo è rotto' (the screen is broken), 'non si carica' (it won't charge), 'si è bloccato' (it froze/locked up).
Lo schermo è andato.
The screen is gone/broken.
Colloquial for broken screen.
Il telefono non si accende.
The phone won't turn on.
Power issue.
L'ho fatto cadere e si è rotto.
I dropped it and it broke.
Explaining how it broke.
Italy has a dense network of phone repair shops ('centri assistenza' and independent 'riparatori di cellulari'), particularly in markets and commercial streets. The 'riparatore di cellulari' is often a multi-ethnic small business, with many run by Bangladeshi, Chinese, and North African entrepreneurs in Italian cities.