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I baught this phone with 512Gb storage - but when I tried to transfer my old images and some movies, it was very slow, slower than any older phone I ever had... when I did some math (size/time)  the speed was around 5-10 mb\s,

later I tried to take a bench and this is the result:

Sequential write: 896.19 MS/s
Sequential read :  1.77 GB/s
Random write    :  30.12 MB/s
Random read     :  28.15 MB/s
Memory copy     :  15.94 GB/s

Do you think it worth to replace the storage while considering that most likly other things will get damaged inside the phone? (the offical distrabuter of samsung in my country has a policy to never give a new phone even in factory defect case - they will, at most, only agree to fix..