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It's a Xiaomi A1 running 8.1 I am using live but HS is listed as the first APN. I can't edit or delete the HS APN though as it's all greyed out.
If you private message (via the link in my signature) over the below info, I can look into this for you?
Date of birth:
Link to your thread or post:
Can you send us a PM with the below info and we'll take a look?
Date of Birth: