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Any expert in mobile devices? What does this mean? Approved by PTA for what? ( Apple Iphone)

Any expert in mobile devices? What does this mean? Approved by PTA for what? ( Apple Iphone)
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Any expert in mobile devices? What does this mean? Approved by PTA for what? ( Apple Iphone)
Powered by NewsCity.Live
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Probably the signal band is PTA approved.
For existing
You can see every country has a regulatory body. In Pakistan it is PTA. Only PTA approved devices will work in Pakistan.