Why are download speed fast but upload speed slow on the Meizu PRO 5?

hi..i stay in malaysia, service provider name is celcom, usually i use my devices to connect internet using 3g or 4g, they have stable connection on download and upload..but now i buy meizu pro 5, download speed are normal like before, but for upload speed, abnormally slow..it didnt happen before in any other devices using the same service provider..

Hi LukeNuke11. Can you show us the speed test results? What I usually see from other people's speed test is that upload speed is slower than download speed.

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