I want to use my phone with another carrier but it locked
If you're a Tmobile USA customer and meet the requirements in the link below you can request an unlock code.
https://www.t-mobile.com/support/devices/unlock-your-mobile-wireless-device
Thanks,
There's an application in the phone called "Network Unlock" I tried using it be is says "Couldn't Unlock Your Phone"
I have been looking at videos online to help me but it's not possible and that's why I joined this community to get a help.
Your device can not be SIM unlocked by T-Mobile because you are not a T-Mobile USA customer and because you do not meet the SIM Unlock Policy requirements. You could try a third party unlocking service online or locally at a cellphone repair shop. They will charge a fee to remove the SIM lock.
Okay,
Since it's an Android you can try requesting a temporary unlock until you find a permanent solution.
I don't know if you can do that from the phone but it's worth a look.
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