When Samsung's Exynos 5 Octa was announced, it was believed to be compatible with 3G networks only. As such, the HSPA+ (global) version of the Galaxy S 4 was the only handset to feature the company's eight-core SoC -- the LTE model shipping with Qualcomm's 4G-capable, quad-core Snapdragon 600 instead. That's apparently changed, with the Korean giant tweeting that the Exynos 5 Octa now supports LTE on 20 bands. So why even make a Snapdragon 600 version of the Galaxy S 4, then? Perhaps Samsung can't produce as many chips as Qualcomm to meet the upcoming worldwide demand for its new flagship. This appears likely, with inews24 and new-samsunggalaxys4 reporting that the Exynos 5 Octa with LTE is currently reserved for Korean models only (SHV-E300S, SHV-E300K and SHV-E300L, to be exact). So, anyone fancy a trip to Seoul in the near future?