I bought during a holiday in the USA in March 2023 a Samsung mobile telephone (Galaxy A14 5G) with a T-Mobile SIM-card, valid about 1 month.
Back in the Netherlands I put my local SIM card in the phone. It worked very well until July 2024. And then the following message appeared a few times:
"”Network unlock will expire soon
Your phone's network unlock will expire in x days.
SIM cards from other service providers will no longer work."”
I followed instructions I found on the Internet. Result:
"”Unable to unlock your phone
Your phone is not suitable for unlocking.
Reason code: 11"”
Has anyone a suggestion how to overcome this? I started to use my old phone: not so happy with it.