Support Galaxy Nexus in South Korea - poor 3g connectivity

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http://androidforums.com – I live in South Korea and am using SK Telecom as a Korea. When I first got this phone in February, the 3g connection was great, but lately has been getting decreasingly worse, for example: - right now at work in Incheon city - pretty much a complete deadzone - on the subway around Seoul It is difficult for me to use apps like KakaoTalk and facebook, and the symptoms I am suffering are very similar to those reported here: Issue 28133 - android - Signal lost when Galaxy Nexus is in Standby/idle - Android 4.0.4 Only - Android - An Open Handset Alliance Project - Google Project Hosting (General)