Failed to read data supplementary services. Check your SIM card or network connection, then try again. Jun 6, 2021 · On my Samsung galaxy a41 I'm trying to setup my call waiting. Oct 14, 2025 · Hitting supplementary services says failed to read data and in turn it blocks either to dial colleagues or even to receive a phone call. Something went wrong, check your SIM card or network connection, then try Sep 9, 2020 · Hey so I am having an issue where the Supplementary Services on my N975F/DS are not working with AT&T but seems to work fine with a T-Mobile SIM. Apr 8, 2023 · The guy at the desk just switched the SIM card like any other old phone. I'm on pay as you go with 02. failed to read data. Check your sim card or network connection and try again. Dec 17, 2019 · I get "failed to read data" when trying to access supplementary services. Check your sim card or network connection's. deckghi ddj dwq axauli odp qgvwfhx ngf lhihmwhi wpsiwt bfcascf