Hey guys, apologies if this has been asked before or if this is a silly question. I recently bought an Asian Lg G3 d855. The software version is D85510e-GLOBAL-COM. The phone is working fine apart from not having any 4g connectivity. I have went into settings and tried to change to GSM/WCDMA/LTE auto but it doesn't connect to 4g and switches back to GSM/WCDMA auto as soon as I exit the screen. I have also went into the hidden menu, to LTE ONLY, RAT selection and tried to change it there but still no 4g. If I choose "LTE only" I lose my signal completely. I have also went into band selection and chosen band 20, as this is the LTE band for my network in the UK (O2). It says success when I click on it but still no 4g. My question is, is it possible to flash a European software version and would this enable the 4g? Or is there any other way to enable 4g on this phone? Thanks in advance!