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Question International or T-Mobile?

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Mar 23, 2009
I am considering purchasing the OnePlus 9 or 9 Pro. As a longtime T-Mobile customer I want to know if the International version of the phone is 100% compatible with T-Mobile. I have read on some web sites that there are frequency bands missing on the International version that are supported on the T-Mobile version. I would prefer to buy the International version because updates would come sooner. Does anyone have any information on this? Thanks!

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    I'm also a long time T-Mobile customer, and I will always buy from the manufacturer going forward. T-Mobile puts too much crapware on the phones. I also like to root and mod my device, and it's a real pain to do that on a T-Mobile device.
    Been on TMo for ages. Still will alway sbuy the unlocked international version.