Good afternoon,
I can confirm that VoLTE is the problem. Mine is a clean install coming from data wiped factory stock following the install process on page 1 of this thread. Turning off VoLTE immediately resolved the issue with outbound SMS messages - and turning it back on immediately caused...
I have Mint Mobile. I edited the APN data to what's on Mint Mobile's website but nothing changed. Very frustrating. Any other ideas? It appears to occur with both Google SMS and Pulse SMS.
I'm having an issue with Quartz 5 where I can't sent SMS messages - but can receive them. I can make and receive calls. I just can't send outbound SMS messages. I never had this problem on Quartz 4 and the SIM works fine in my other phone when I put it in there.
I somehow accidentally turned my USA 1905 into the India version (has Indian features, Cloud storage) - but I need to return it to US Stock for return to OPO. Can I do that using the tools here, or do I need MSMtools?
So I should flash the vendor image to both slots, boot TWRP, flash TWRP installer, reboot to TWRP, wipe everything, flash this, flash the installer, and reboot? Do I need to reflash the TWRP installer after each update? What if I want Magisk?
As someone who took the plunge I used Freja to download the firmware and then flashed CSC_home to keep my apps and data. Netflix works, Google Store works. Everything appears to work fine. Your mileage may vary.