Problems after system update

different towers could have different bands on them..so the tower covering you could have a different band of LTE compared to the towers you were hitting when you left the area..your closest tower could also be down with issues.

since your device isnt from the states here im leaning towards lack of certain LTE bands we use here but i dont know what all bands it has compared to the US variants or if there is even a difference in them.

Frannie wrote:

So yesterday I stopped at another tmo store came across a guy who's been with them 23 years. Looked at my phone asked me where I bought it within minutes showed me my 4g doesn't have the LTE thing so in other words I've been lucky it had been working at all since I never had full 4g…and he convinced me to get a new phone which I'll be doing this afternoon. 

However how come it was working just fine before the update?

And any phones I shouldn't get???

your question is also the answer.

also as of yesterday this is now a known issue with the A53  and Samsung is working on it.

unless its detrimental i would hold off on getting a new device since theyre actually working on fixing this one now.

havent heard anything on that one..only got feedback on the 53.

a lot of problems after last app update

Frannie wrote:

No I bought it in France and I don't think it does that's what they're telling me it doesn't have LTE...

European devices even though they are named the same thing dont always have the same bands needed over here in the U.S.

if thats the case you’ll want to be looking into a new phone here in the near future.

Thank you. I actually did buy a Motorola...

This is an issue that happened on all Samsung A536E variant after the July Security Patch (Latest on this model variant)

Samsung has been pretty much ignoring this (Big) issue (whether on purpose or not)  the only fix is to roll back your Android OS Firmware to the previous patch using ODIN.

This is the functional Firmware. > A536EXXU2AVF2

This is the latest July on the A536E variant that broke calling A536EXXU2AVG1 < do not install

Also happened on A235M Variant (A23)
 

what all things have you attempted to fix it on your side? restart the phone? network reset? all incoming calls or only specific ones?

Thank you for your reply!

1. I have had three conversations (on different days) about my problem with T-Mobile Technical Support, which did not result in getting the problem fixed.
2. During this process, I have restarted my phone multiple times.
3. I'm not sure if a network reset has been done (it might have been done by T-Mobile Technical Support). Is this something that I can do, or is it something that would need to be done by T-Mobile?
4. The problem exists for all incoming calls.
5. Outgoing calls can be made (if I make multiple attempts), text messaging works, and I can access the Internet. (My voice mail was working until T-Mobile Technical Support turned it off to see if calls would come through--they didn't. Now it doesn't work, even though T-Mobile says it has been reactivated.)
6. Since the problem was caused by the installation of a system update on July 31 (the same thing happened on my wife’s phone), do you know if there is a way to uninstall that update?

¡Gracias de antemano!

not without knowledge when it comes to rooting devices etc..if its something you have never attempted before i would not attempt it..you can try doing the usual attempts to narrow things down..boot the phone into safe mode (this shuts down all 3rd party apps and makes the phone run fully stock to eliminate any 3rd party apps not playing nicely with said update)..if it still doesnt work then it isnt being caused by some odd ball rogue app. as much as i hate to say it you can attempt to perform a Factory reset to see if it resolves the issue..but if you and your wife have the same phone and same exact problem i would only do this on one device..if it fixes it perform it on the other device..if it doesnt fix anything then its safe to say doing it to the other device is pointless..

by chance do you happen to know what update it was? i know the A52 just received or is about to receive Android 12..but not sure what the A53 received.