Device Guides
I can't access my mobile phone
This troubleshooting guide will take you through a number of possible causes to help you find a solution to your problem.
Possible cause 4:
Your SIM has been permanently blocked: Contact customer service or find an Optus dealer using our Store Locator.
![Samsung Galaxy S20 Ultra 5G](https://wmstatic.global.ssl.fastly.net/ml/6150824-f-82b1ddd5-a02b-4074-bffe-ef2ed14d5860.png?width=230&height=400)