Issues with Notifications/Text Messages/Samsung S20 and Note 20 5G

[Moby]

I noticed a few weeks ago that I wasn't receiving text messages, then I noticed that I wasn't receiving other notifications for other apps like Facebook, Xfinity, Gmail, etc, and when I refreshed my phone by powering off, or restarting, i would be bombarded by notifications and text messages.  It would work for a little while then it would do it all over again. I called Tmobile, they did a bunch of tech check, and finally because they were unable to fix it, they sent me a new phone.   I gave that phone to my son, because I upgraded to the new Note 20 5G and wouldn't you know it,  same friggin issue... T-mobile says it must be an app I downloaded, so I went through my apps, got rid of a bunch, and it appeared to work.  But then, a couple of hours later, it would happen again... it's so random, I'll get certain notifications, text with someone with no problem, but then no texts from other people, but then once I refreshed the phone with a power recycle, I'm bombarded with a bunch of notifications all at once... Has anyone else encountered anything like this? It's either a Samsung thing, a 5G thing, or an Android bug thing... it would be nice to know if anyone else is going through anything like this...

[Capo]

maybe check to see if the apps your talking about are put to sleep or deep sleep.

[Moby]

i have checked it, however what is deep sleep?

[KandieWood]

Yep, every frickin day since July 7th when I upgraded from my Note8 to the Galaxy S20 Ultra with US Cellular. Upgraded because I had to not because I wanted to, husband's dog ate my Note8 screen literally. Lol. The local US Cellular Premier Location in Oklahoma told me this was the issue. Due to the new phones being 5G phones and the towers not being 5G yet is causing issues. The phones have features that are not compatible with the current system. They went into the Settings > Connections> Mobile Network >Enhanced Calling and turned it off. As well in Mobile Network > Network Mode > Made sure it was set to LTE/CDMA. Then reboot the phone. This did seem to work for a little bit. However, now I have the same issue again along with more issues, wifi not connecting or refusing to find wifi, RCS constantly turns off and on by its self when it feels like it. Biggest issue is my screen will randomly lock when I'm using my phone. Like right now 4 times it has decided it needs to lock and either enter the pass code or use my finger. This all gets frustrating to say the least. I hope your able to find a resolution that actually works for your phones..

[NYZOMBIESLAYER]

having same issue. it was fine until 2nd to last update. I have s20 ultra and after Tmobile swapped sim card...nothing. Replaced with new phone and same problem. can't make or receive calls and texts. this is unacceptable for a $1,500 phone. iPhone on the same line has no problems smh

[Moby · Accepted solution]

update... it seems that the latest software update has fixed the problem

[userDGi70ddZhd]

latest update didn't fix mine

[memaw25]

with latest update pictures within text not supportec6

[flipper98c]

I fixed it and bought an iPhone for the first time in 5 or 6 years. 

[usera6GUlXWrhP]

I have had the same issue with my s20/tmobile since the summer.

It seems to go into a secret airplane mode without any notice (no texts, calls, messages, etc.).

It also sends and revcives duplicates of texts up to 6 times.

T-Mobile sent me a new sim card and that seems to have helped, but still getting muliple texts and unable to send and recieve texts from time to time.

It is so frustrating and am also thinking of switching to an iphone for the first time ever!

Not the behavior I'd expect from a flagship phone...