Hi, a couple of months ago I purchased the Optus X Sleek locked to Optus and I haven't activated anything, I have been using the blank sim with no number. Can I use this phone on Coles Mobile as they use the same network (Optus) or do I need to unlock my device?
Thanks for reaching out to us about this.
You can certainly use this device with a Coles SIM card as the phone is located to the network and not the provider.
Hope this helps.