After Pie update my phone responds for every touch after 3 - 5 seconds, network connectivity is very very bad. IMS fails repeatedly. Updated everything including apps from Galaxy store, reset network, installed another messaging app, cleared cache, reset the phone to factory, still the same. Does the same in Safemode as well. BUT if I take the SIM out of the phone, it works smoothly. Tried multiple SIM cards from multiple providers - no luck. The SIMs work perfectly in other phones.
Also, I have tried every possible troubleshooting from almost all portals. I'm almost up to re-image it with custom ROM. If that's the solution kindly point me out to a good image compatible with J6
