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Old Jul 12, 2016 | 6:25 pm
  #1388  
Mul
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Join Date: May 2001
Location: San Francisco, CA, US
Posts: 242
I had trouble using T-Mobile in Seoul last week. The data was either not working or very slow. Once I had rebooted my iPhone, it works but then it wasn't working again.
Turned off LTE or switched LTE to data only does not help much.

Meanwhile in Japan, it works flawlessly.
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