![]() ![]() Sony needs to update the Customized US region firmware, so correct config is loaded with TMOUS sim card.ĭo you think if I flashing the CE firmware it'll have the settings to enable Volte on T-Mobile? So it matches the behaviour you have on your phone, that the default modem config is loaded (as such no VOLTE). This should include instructions for phone which modem config should be loaded with the provider.īut In the oem.sin i did not find such instructions to load amss_fsg_maple_dsds_tmobile_us_ims_tar I downloaded the Customized US firmware and extracted the oem*.sin file. It does not say that, please see attachment #Vei圎S Ideally it should read amss_fsg_maple_dsds_tmobile_us_ims_tar there should be row called Current modem Config: What does it read? I bought the us version from Best buy my model number is G8142 (Dual SIM)Ĭan you check what modem configuration you have loaded? To do this type this in dialer *#*#7378423#*#* then "Service Info" then "Software info". Trouble is, that this region is not available YET ![]() You need Flash oem.sin from Customized US region firmware. There should be an option in settings,more,mobile settings, enable Volte. Maybe someone who flashed another firmware can verify they have Volte working on T-Mobile. Basically my xzp doesn't have an option to enable Volte. Anyone has Volte on T-Mobile US enabled? - Sony Xperia XZ Premium Questions & Answers Spent the past 2 hours talking to T-Mobile and Sony technical support trying to get Volte working. ![]()
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