Update

[ane10]

Since the software update my phone  haven’t been working properly. 

It's gets super hot, and I can't adjust it once it's on automatic unlike before. I hardly turn off the automatic because I would forget to turn it on snice i am not used to it and once I am out I can't see anything because it too black not even dark.

This also makes the phone hot because it goes crazy adjusting it self I absolutely hate it. My phone is super hot even with a case on, and its hard to cover your phone from the sun clearly once the sun hits it, its like the phone is on fire. 

My apps are update yet it's not working when I go to use some apps it freezing and even tell me I have no internet connection, I have clear the cache on basically all my app restarted the phone. I try everything i could think still I have this issue every single day. 

[RedDogRabbit · Accepted solution]

What device & Which update? 

I know that you're going to hear this anyway, but first thing I do after a Security Patch OTA, is Boot into Recovery & Wipe Cache. 

If it's an Android / One UI version update, I always Backup my device with Smart Switch & Factory Reset. 

I've never had any issues with any update. 

[ane10]

The most recent update that shown up it may or at least I got a notification for it at the end of May.
Thanks I tried it. Still having the same problem. I usually don't either but I don't know why now.

[Helenna · Accepted solution]

Hi ane10, that's really sad and we are so sorry to hear that your'e facing this issue after the update.

As said by RedDogRabbit, please boot your device into wiping cache partition. It is recommended to perform wipe your cache partition through recovery mode after every update and check if it resolves the problem. 

If you wipe your cache partition, it removes any temporary files that may be causing issues with your device.

Turn off the unit > Press and hold the volume up button and press and hold the on/off button. When the Android logo is displayed, release all keys ("Installing system update" is displayed before displaying the Android system recovery menu options) > Press the volume down key repeatedly to highlight "wipe cache partition" > Press the Power key to select. Press the Volume Down button to highlight "Yes" and press the Power button to select. When the wiping of the cache partition is completed, "Reboot System Now" is highlighted > Press the Power button to reboot the unit.

If nothing works, then as a last resort please perform back up and factory data reset on your device.

https://www.samsung.com/ca/support/mobile-devices/perform-a-factory-data-reset-on-your-galaxy-phone....

https://www.samsung.com/ca/support/mobile-devices/galaxy-phone-back-up-and-restore-data/

Thank you.

[ane10]

Thank you, the first one didn't work I will have to try the other.

[Raven69]

I have a S21 since last update I lose all wifi connections a block or so from house? Was fine before now nothing. Have tried to make sure settings are right but still nothing, being in a wheelchair ifs trouble some & don't understand what changed for this to happen. I live in a small town & shouldn't have a problem but since last update it shuts off all wifi even in stores that I know have it or on bus wifi cuts off, WHY

[RedDogRabbit]

It's probably best to make your own new post, so that more people will see it.. but, 

Try the following:

Go to Settings & Search for "Reset" and Reset the Network Settings on your device. ⚠️

You'll need to know your WiFi passwords

Go to Settings > Connections > WiFi and Click on the 3 Dot Menu Top Right.

Click on Advanced Settings & Verify the settings here. 

Next Click on Intelligent WiFi settings and verify the settings here.

See if that works for you.