stuck on checking for software screen - Samsung Galaxy S21 Questions

I went to check to see if I got the Feb 1 security update on my S21+ and I have been stuck on this screen forever. I have rebooted and also wiped the cache partition. Nothing works. Any thoughts?

remove SIM and re-insert it

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[Q] Rebooted and got stuck. CM-10.1

My Tab is not feeling well.
I have installed CM-10.1. Everyting worked perfectly. Until it didn’t work at all.
Suddenly it boots and gets stuck at Bootup image "Samsung GALAXY Tab 10.1".
It all happened just like that, and during some update or alteration on it.
And until this happened the tab worked perfectly.
Have tried:
Restart. Stuck at Bootup image "Samsung GALAXY Tab 10.1".
ReFlashing the CM-10.1-20130119-nightly-p4.zip. The whole process works normally until it will boot up and then it gets stuck.
Wipe dalvik
Wipe cache partition.
Wiped the screen.
ReFlashed the CM 20130108 (which was the first I put in before I update via settings)
ReAdded a new bootloader via Odin.
Fix permissions
Nothing helps.
What differs.
Tried factory reset. It starts running the reset but after aprox. 10 sec. the Bootup image "Samsung GALAXY Tab 10.1" turns up.
When I insert the charger, the battery symbol comes up, but does not show that it is charging. Stuck on the battery with the star/sun in it.
Tried to restore the saved backup in Nandorid. "Could not open directory"
What has happened? And how do I do now?

Moto X 2013 (xt1058) wont boot

I've had CM12/12.1 installed on my motoX 2013 for a few months now and have had no problems. Last night when i tried to type in my password my phone would just freeze. I restarted it and eventually i got in and went to disable the password. On the way there it crashed again and now when ever i try to start my phone it just gets stuck at the warning bootloader unlocked screen. I can get into fastboot and when i go to my recovery it just gets stuck on the teamwin screen. This happened without me changing anything, no update or anything. I reflashed my recovery and i was now able to access it i cleared my cache and dalvik cache and was now able to access my phone. After using it around a few minutes after my phone crashed again and now i have the same problem, except the dalvik cache wont wipe. What do i do? :crying:

my phone is stuck in bootloop, but sometimes im able to turn it on

i had my phone for about 2 years, it has been rooted ever since i got it and its running custom rom and custom recovery CM 13 on android 5.0.1 and TWRP . about a week ago i was charging my phone, when i unlocked it, i'm unable to go to the home screen because whenever i do that, google app crashed and the phone redirected me to the recently used app tabs, then i tried to reboot my phone and it went to safe mode but then i restarted it and its stuck on bootloop. so i let it be for a while, then it show the "android is starting" tab and "optimizing app number "xxx" out of "xxx" and after it finished, again it is stuck in CM's logo. however, then i put my phone to fastboot an restarted it and i dont know, it turned on again after 2 boot loops. a week after, my phone ran out of battery so i tried to turn it on but it wont , after reading threads on the internet, it suggested me to erase the cache and the dalvik cache. so i did and it turned on. today, i ran out of battery again and i erased both cache and dalvik cache, but it wont turn on.. i have no idea what's going on with my phone, and im a newbie so please go easy on me thank you.

Can't fix bootloop

My phone (Vestel Venus V3 5020) is bootlooping and I tried turning it back to factory settings and wiping my cache partition and restarting it after turning the phone off and waiting for like 10 minutes but my phone is still bootlooping. Before it started bootlooping I downloaded an update because my clock and the battery level stopped and the keyboard wouldn't open. Also, I rooted my phone but then I removed it before it started bootlooping , help.

[T825Y] After updating to August security patch, shows black screen after boot

Hi. My T825Y (Open line XTC Philippines version) suddenly shows black screen after booting. Right after the "SAMSUNG" boot animation, the screen shows blank but I can pop up the power menu and it still shows. The "show screen touches" can also be seen when touching the screen. I tried clearing cache, booting in safe mode, but still no luck. I also notice that the back of the tab is very warm.
I just wanna know what caused this.
Planning to dirty flash the firmware T825YDXU2BRG3 to restore the device again. Thanks.
P.S. Stock recovery works and also the bootloader.
UPDATE: Tried flashing latest firmware using ODIN but still the same problem...
UPDATE 2: Wiped data using stock recovery and it booted fine. So much hassle for updating a stock non-rooted device...

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