SEOUL (Reuters) - Tech giant Samsung Electronics Co Ltd said on Friday it will halt the sales of its Galaxy Note 7 smartphones and will prepare replacement devices for phones already sold after finding problems with the battery cell used.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=UQu4D9gfTwE:3w5mQNzkRQA:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=UQu4D9gfTwE:3w5mQNzkRQA:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=UQu4D9gfTwE:3w5mQNzkRQA:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=UQu4D9gfTwE:3w5mQNzkRQA:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=UQu4D9gfTwE:3w5mQNzkRQA:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/UQu4D9gfTwE" height="1" width="1" alt="" />