Hello everyone! I know this router model is obsolete but we might be needing it for a couple months yet till hardware upgrade. TPLINK Site states that you should only upgrade your router with firmware from the same country of purchase but all firmware downloads for this model were erased within the Argentina site. However, I found a newer firmware for this model on the international english site. Will it work flawlessly with my Argentinian TL-ER6120 v3 ?? I´ve been reading this forum and found that all firmware files are the same no matter the country. Is this true? Thanks in advance since I really need the extrasecurity this firmware upgrade has.