Mtcc-kld5-v2.91 - Android Auto General

Hi there,
New to the 'Auto' forums.
Could someone make sense of where we got to on firmware evolution for the.....
MTCC-KLD5-V2.91 Kernel 3.0.101 (aka Pumpkin 7" LCD, 1 Din Android 5.1.1 )
Biggest grips with the unit.
1. No support for 3/4G Modem
2. Holding the power button in for 10seconds does a Factory reset and not just a reboot - yikes !
3. Passwords do not enable SuperUser - even if the toast message says they do.
4.Possibilities to over clock a little..... Waze and Spotify runa little slow.
many thanks.

Related

Weird phone freeze behaviour and other abnormalities! Is this normal?

Hi guys,
I'm on 2.1 Stock ROM, no taskkillers etc.
My homescreen is completely frozen as I type now and I can't open the apps menu (the app drawer with 3D conveyor belt effects) or slide to any other homescreen whether i lock/unlock the screen as many times i want!
On touching any homescreen icon absolutely unrelated apps are launching, eg, on touching messaging icon the stock camera launches (whose icon is on a different homescreen!)...on touching market icon...color flashlight launches (icon not on any homescreen...straight in app menu/drawer) etc etc! So cant launch maps or anything. 8 icons on homescreen and remaining space is taken by weather widget donation HTC style clock.
Wait a min...a call just came through fine and I could answer it...after hanging up I could touch all home screen icons and they were working but then suddenly my entire home screen rotated and went to landscape mode! Like all home menu icons, weather clock etc are in landscape/vertical direction and not alined/fitted to the entire screen...as in the ends of icons are cut off as the whole page looks magnified cos its obv not intended to be like that. Landscape orientation is not supported or needed on homescreens/app menu etc on the N1. Why is this happening (never came across this orientation change issues in any forums inc. xda) , why the hang?! Weird things regarding touch sensitivity and screen behaviour etc keep happening from time to time but I know about all that screen, touch sensor make and quality issues etc etc.
Also, I've noticed that everytime after a restart my phone takes atleast 20 mins to half hour plus to get everything working snappily and respond at full speed, eg, till then homescreen transitions are not smooth, all gallery pics dont load up to show for a long while (16 gig class 2 sandisk card). Is this normal?
Sometimes after switching to 3G my 3G watchdog (mobile data transfer measurement app) doesn't auto launch (app issue maybe?) and sometimes no mater how many times I choose wifi ON, it doesn't turn on! Switching it off from power control widget (i.e., 3G on) and then on again doesn't turn on wifi either even when good signal on my laptop!
Earlier today my phone was lying on the desk and it auto-restarted god knows why! The phone freeze happened like 10-11 hours after the restart today afternoon so memory etc wasn't so full or too many apps launched. The home screen rotation orientation has changed before in the past too so not first time to be clear.
I have still more than 80 mb app memory free in internal memory and dont overload my phone with crappy apps etc etc.
Pls advice and discuss.
I know you're on a stock rom now, but have you previously unlocked the bootloader and flashed anything else like recoveries, roms, etc?
If you have and you just reverted back to a stock rom, you could've downloaded a bad rom.
Have you dropped your phone? banged it around a bit?
mrandroid said:
I know you're on a stock rom now, but have you previously unlocked the bootloader and flashed anything else like recoveries, roms, etc?
If you have and you just reverted back to a stock rom, you could've downloaded a bad rom.
Have you dropped your phone? banged it around a bit?
Click to expand...
Click to collapse
Nope...none of those...fresh as a daisy!
Ok, well 2 options...
Option #1 - Return your phone for a new one if it's under warranty.
Option #2 - Unlock the bootloader, upgrade your recovery, flash the new radio and upgrade to a new rom like cyanogenmod. Come to the Dark Side young skywalker.
mrandroid said:
Ok, well 2 options...
Option #1 - Return your phone for a new one if it's under warranty.
Option #2 - Unlock the bootloader, upgrade your recovery, flash the new radio and upgrade to a new rom like cyanogenmod. Come to the Dark Side young skywalker.
Click to expand...
Click to collapse
So returning or rooting are my only options??? Why does the screen rotate weirdly? Is there any explanation of what's gone wrong?!
See if its a hardware n I root then I'll cry later due to voided warranty n in UK we get a 2 year warranty.
As far as bumps or knocks are concerned...ofcourse the phone takes normal hits or once or twice falls from my laptop to my carpeted floor but that's all.
There has to be logic behind this!
strange sceen happenings...
I've had the same ghost in my machine. In addition, my nexus would lose communication with the network and the cool startup screen with the streaming x would show. I had to pull the battery to get things back to normal. Enom suggested to watch my apps, he thought maybe one had a memory leak.
I found that moving my apps to my sdcard made my phone shot my phone to the streaming x about twice a day. Since wiping and not doing this, I haven't had that problem. I also found that my fav craigslist app was causing my screen to go unresponsive. I think the craigslist app was checking it's update and monopolized the cpu. Since my wipe i havent' installed it and the phone is working better.
Last, I installed nextheme 1.8.1. It also seems to quell the errant screen happenings. The screen still has it's moments, but if i press the off button and turn the phone back on again, i have control back.
I still have problems, but i've gotten them managable. I don't think it's a hardware problem because my rom choise and app selection really affect it. If it were hardware, it would be more consisitant regardless.
Hope this helps...

[Q] eclair live wallpapers

Just got my Galaxy S up and running on AT&T. It's the unbranded phone - not a captivate.
What is the best stable rom right now? I read about the official version codes, but I'm confused as to JR, JP, JM, etc.
At this point I just want something that's fast and works, so probably something 2.1 based. Later when I have more time I'll play with Froyo.
[Q] SGS South American Version will come whit DIGITAL TV reception
Guys, d u think there is gonna be a way to do it whit software changing, like flashing the SA firmware, or the phone needs a hardware part to receive the T signal ?
[Q] Laggy pinch-to-zoom
Hi everybody!
When i use the pinch-to-zoom function in my browser (the default browser on SGS), it's very slow. It is very laggy and not fast at all. Is there a fix for this or have I missed something?
please help!
Think you've answered your own question there.
If you want it on 2.1 install launcherpro or something.
Sent from my GT-I9000 using XDA App
[Q] Battery Drain on Mimocan Lag Fix
Hello all
I have noticed that my battry drain very fast after I applyed the Mimocan lag fix with a Sandisk 16 gb card Class 2 (all thanks to Mimocan for this lag fix. Apps run much smoother).
The main problem is when the phone goes in to standby. Last night it drained 22% even with all sync action diabled and all apps killed. Before the lag fix I did only see a 2-4% drop in battery over night.
To compare it drained more then a 15 min call I made before I went to sleep (35% vs 25% of total battery used. I pulled it out of the charger 5 min. before the call, so the data should be correct)
When the phone is activated, it seem like the battery drain is about normal.
I wonder if all/most ppl have this problem or is it just me?
My guess is that the SD card is activated all the time to acces apps data, and thus drain the battery.
Im on the m2 software, but I dont know if its the software or just a common issue when doing this lagfix?
Give a comment, Thx.
[Q] What drivers are needed for Odin?
Like other people, I'm having extreme difficulty connecting my SGS to PC with USB. I have tried just about everything mentioned in the forums, including:
-USB drivers from Kies and other sources (like the ATT Captivate drivers). Usually the Kies downloaded package installs all, but it cannot find the samsung modem driver when I plug in the phone. The Captivate drivers could not find "USB gadget". I tried installing both.
-Reformatting SD card (actually allows me to connect to 91 Panda PC Helper in -debug mode... but that's it)
-Erasing all references to Nokia and Motorola using Regedit. However I did not erase references to Samnsung or Windows Mobile)
-Praying to the creator
-Sacrifice of chicken
-Starting phone while connected to USB
-turning off antivirus.
I tried flashing phone using odin, in download mode, but it seemed that odin could not see my phone. Nothing happened.
Anyone have other ideas?
[Q] Lagging in ALL KINDS of music player after flashing samset1.9
I dont know if it is just an issue only to me, but I am having lags in any music player i tried after flashing samset 1.9.Generally the device runs other apps really fast but the sound and music lags all the time except when I leave the device be to just playing the music. I am using ext4 for a2sd fix. Dont know anyone is having the same problem
[Q] open img files from ClockworkMod Recovery?
Does anyone know a way to open the backup img files created by ClockworkMod Recovery?
[Q] Is the latest fix completely safe for device longterm?
Some people are wary of the stress caused by the latest fix, I am very very new to smartphone's in general and wanted the honest opinions of those who truly know android/device hardware.
There is a lot of well intentioned misinformed posters in any forum. But these things are important to get correct, I would much rather wreck my external 32GB card than the actual phone internal memory.
[Q] Busybox not installing
Hey all,
I am having a problem with busybox. According to the 1.18 installer, I have 1.15.3 installed. But the installer won't let me upgrade because 'the nand is not unlocked'. When I try the older 1.17 version, I suddenly have no busybox installed and have the same message with the failed instalation. What can I do....
Running jm5 with samset 1.9 (ext 3/4 fix not applied).
Alvast bedankt.
[Q] Wake the phone using Menu, Home or Back button?
Like the title says. Does anyone know if there's a way to wake the phone up using the Menu, Home or Back button like they've been able to do with the Desire and Nexus One?
Reference:
http://forum.xda-developers.com/showthread.php?t=696907&goto=newpost
Samsung placed the power button at an awkward place. I assume it wouldn't be too hard to accomplish this. Probably using an app or coded into custom ROMs?
EDIT: Don't have the phone yet but so I assumed it couldn't do it like the Desire. it seems you can wake the phone with Home and Power. I think the thread above details how to enable/disable the other buttons in waking the phone as well. Looks like a simple editing of the keyboard layout and then pushing it back. Thanks.
[Q] Still lag in Contacts and Phone even with Quadrant score 2106
I am now having Quadrant score of 2106 after using RyanZAEXT2Lagfix Alpha1. It is a huge increase. However, i still notice the annoying lag in CLOSING of application such as CONTACTS and PHONE. Opening of these application is also not as seemless as in Desire HTC sense which I previously own.
Can anyone tell me how to fix this?
[Q] No missed calls, sms, emails showing on icons
Last rom to work was a froyo rom, now any rom i put on dose not show a numeric sign to how many sms, emails or missed calls have not been read, please dose anyone know why?
[Q] ODIN questions
Hi there,
Could anyone tell me what will happen if I did the following:
I checked around but I don't think these minor questions have been covered in the big FAQ
Is it necessary to apply repartitioning when updating to a new firmware?
Will you corrupt data if you upgrade just 'modem' or 'csc' on ODIN?
Will you retain all your data if you don't go for repartition when updating to new firmware?
I've successfully flashed 2 new firmwares. One of them was Russian (jm5) and I was told a bit after than I can just apply the jm1 csc. Anyway, I got over it and just reflashed back to JM2 as it was stable enough.
Thanks
[Q] Headphones and micro issue
Hi,
I am the happy owner of HiDefDrum (+micro) - by atomic floyd - headphones I bought originally for my iPhone. It worked great with the iPhone 3G 16Go (sound, microphone and button).
Now I bought a Samsung Galaxy S last week, and I have problems with my headphones.
If I plug the headphones completely, the sound is weird when I listen to music (as if I heard only an echo of the sound, I don't even hear the voice of the singer) unless... I press the headphones button ! Then the sound is normal.
I can listen to a normal sound when I do not plug the headphones completely (leaving the last part of the plug outside).
And in any case, the microphone does not work.
I thought it was a hardware problem, until I saw that we can access many configuration settings using the code *#*#197328640#*#*
I guess the problem can be solved by modifying some settings in this menu, but I have no idea which !
Can anyone help ?
[Q] Question before drastic measures :) experts please
Hi Guys
I have tried all sorts of lag fixes on this forum, but after installing a couple of apps (10 to 15 in my case). The telephone is sluggish and laggy.
Yesterday i got fed up oflag fixes and firmware flashing hoping that the next version will be the solution so i put it on one of the online selling websites
I really like the way the phone looks and its amazing hardware but i am really not sure whether to keep it or sell it
Everyone keeps saying that the froyo 2.2 update will solve all the problems, so would you guys recommend holding on to the phone till end of september till the froyo is released, or should i sell it now and minimize my losses and try some other mobile phone
Is it true that 2.2 is gonna do its magic regarding lag and the time it takes to load an app, or am I having high expectations
[Q] Couple of newbie questions :)
Greetings fellow Friends from Galaxy
I just moved myself from the HTC Magic section to this one.. It was quite a jump, the Galaxy S Camera and 4inch screen are AWESOME =)
I have a few noob questions that I don't want to spread through many posts, so i've chosen to get them all here, without polution this forum section. Also they might come in handy for future Galaxy S buyers!
My phone is: 2.1-update1 @ I9000XXJF5
Question #1
Well at first glance everyone's trying to fix the "LAG PROBLEM"... I haven't noticed any lag!! What are we talking about? If its a fix.. i want it too
Question #2
The phone came with Android 2.1, but at samsung-firmwares.com and at this dev section of the forum, i saw the JP3 Froyo release. How stable is this? Is it already a daily driver or a total beta? As an Android lover, i'd love to have the latest
Question #3
I've used the One Click rooting solution and then the ROM Manager Clockwork to boot into clockwork rom and make a full-system backup. In my HTC Magic i had the recovery ROM (Amon_RA) flashed into the internal phone memory, so even if i didn't have a ROM installed, i was ALWAYS able to boot into recovery. That was a safety plus. How can i flash the Clockwork Recovery directly to my phone, without the ROM Manager? I'd feel more secure if i could count on recovery even if, for example, i flashed a non-working system ROM.
Question #4
So what is YOUR favourite ROM? My stock has some unwanted apps, and even worse, it's Eclair. I'd like to switch soon, but i don't know these Galaxy S ROMs Tell me what's the best ROM for you!
Thanks guys, XDA is indeed the #1 place for mobile stuff
Cheers
Phk
[Q] Galaxy S stops syncing corporate calender after upgrading it to firmware JG4
Anyone else having issue with syncing stock calender with corporate calender on exchange 2007??
[Q] Restoring File to /system/lib Without Root
I accidentally broke my phone by accidentally removing libgps.so now it won't boot.
I can get into recovery mode and see the device under devices, but I am unable to obtain root:
$ su
su
link_image[1728]: 2453 could not load needed library 'libandroid_runtime.so' fo
r 'su' (link_image[1728]: 2453 could not load needed library 'libui.so' for 'li
bandroid_runtime.so' (link_image[1728]: 2453 could not load needed library 'lib
pixelflinger.so' for 'libui.so' (link_image[1728]: 2453 could not load needed l
ibrary 'libhardware_legacy.so' for 'libpixelflinger.so' (link_image[1728]: 2453
could not load needed library 'libgps.so' for 'libhardware_legacy.so' (load_lib
rary[1058]: Library 'libgps.so' not found)))))CANNOT LINK EXECUTABLE
I can't cat the file, mv the file, remount /system.
Any wild and wacky work arounds in an emergency like this?
[Q] May I have the latest 2.1's official camera.apk
May I have the latest 2.1's official camera.apk
Just missing this file due to some unexpected problem.....
Could anyone help me a bit

Issues with Stock ROM (318D etc) & Andro Update V3.3 RC2

Hello,
Joined the forum recently,unable to post in any of the existing threads due to the 10 posting rule (yawn!)...hence started a new thread, Apologies if this has been already reported, cd not find the related thread.
I have tried all ROMs (barring MIUI) and observed the following
On 2.3 Stock ROM & Andro - The phone gets hot while using 3G (the lower part) and sometimes while on charge (not the battery). Is this normal and expected of a Huawei product ? I use a Huawei 3g dongle and have observed it to get hot on usage. Occasionally have also seen the phone to heat up while on EDGE. Not sure if this is my handset problem or something else (due to overclocking ???). Open to advice suggestions.
GPS is not working on Andro, it hooked on to the satellite only once post searching for 15 mins.
2.3 Stock ROM & Andro - I have seen other members report of Screen lag - is this the lag in screen display appearing post pressing the on/off button post screen lock or the delayed response while moving between screens ? I have not seen any delays while pressing ON/OFF in Froyo, India 2.3 Update, Good ROM 318D update or Andro update. And in all, i have seen delayed response while swiping to the next screen.
Is there Wifi Problem in Good ROM 318D ? I experienced WIFI issues;did not lock onto my home WIFI despite multiple attempts. No issues observed on other ROMs
Noticed Bluetooth headset (I use a Nokia) volume is very low in Official Stock ROM (2.2, India 2.3 and Good ROm 318D) but excellant and loud in Andro ?
Couple of more points/queries (pardon me if these are elementary !)
On 2.3 the EDGE/3G/WIFI notifications sometime goes White, what does this signify ?
Saw a thread on 1500mah battery, Anyone's used it ? Appreciate a review. My battery experience is just ok.
I rooted the phone on Official 2.3 ROM, installed ROM Toolbox, it asked for Busybox while trying to change system font. Installed that from market, however the phone restarted suddenly and hanged at Android Logo at start up. Where did I go wrong ?
Phone occasionally restarts, have read this in other CSL MI410 reviews, noticed this happen when there is an FC or the phone is busy !
Thanks
Couple of observations

Getting stuck on Health and Safety warning screen! Please help !

Before I start describing my problem - let me just state that I am 100% sure that everything is perfectly fine with my brand new Gear VR as it worked tonight flawlessly on my my wife's Note 4 - running the same 5.0.1 OS, as my Note 4 (T-mobile).
Problem is to get *MY* Note 4 working with the Gear VR.
While hers is working just fine - mine gets stuck on Health and Safety warning screen!
Just like with my wife's - when I connected my Note 4 to the Gear VR for the first time, with a nice blue and white (already working) VR/3D image it prompted me to take it off and install the appropriate software. I did and reconnected the Note to the gear VR and was awaiting the Welcome screen.
Sure enough - after the usual beep the screen came on:
a) - 1 small white spinning circle - IN THE DEAD CENTER - as it should be
b) - then the intro with the elliptical shape ferry dust animation that follows with instructions
to adjust the focus with the center ring on top.
Note: this image with focusing instructions is split to the left and right part of the screen with center being EMPTY !! I cannot turn around and look around in the room like I can if it works. The image is flat/still.
c) - then the HEALTH and SAFETY warning screen comes on.
Note: this warning image is also split with partial text thrown to the left and right part of the screen with center being EMPTY !!
More importantly - I do not see the small blue cross with which I should to aim with my head on the blue Oculus oval logo ("Look here to acknowledge" - in order to leave this screen and go to Oculus Home....and the "Look here to acknowledge" is placed to the very right of the screen, where I actually only see the word 'Look" I have to actually take the VR partially off , look deeper to the right to see "" here to acknowledge"
Both of our Note 4s run 5.0.1. We just got the VR today and installed Oculus software on both phones today. I am really puzzled why it works on her phone on not on my Note 4.
(to make things worse - her phone is getting sold and shipped in 2 days and now my Note 4 cannot get passed the "Health and safety warning" screen.
Please advise any help would be appreciated.
I also should mention that:
- a) I tried to uninstall the Oculus software, wiped cache partition, re-installed Oculus Software
- b) my phone is rooted, but it is running the stock ROM and our phones are identical as far as:
- identical Android version: 5.0.1
- identical baseband: N910TUVU1COD6
- identical Kernel 3.10.40-4739134
Tue April 21 11:47:32 KST 2015
- identical build number: LRX22C.N910TUVU1COD6
- identical 'SE for Android Status"
- identical "Security software version"
- identical Knox version
I would not think that rooting ist the problem as I have heard that many other users are running Gear VR
on rooted Note 4s and I also think that if rooting was the problem, then it would either run or not run at all.
The fact that it starts into the split image is puzzling me and I really do not want to do a full factory reset on my phone and re-install and activate all my apps. (I will if I have to, but hoping that there is a simple solution
to this before I go that route).
Thanks again in advance for your input.
I had this problem but it was due to the fact that I was using a custom rom/kernel, went back to stock and it's ok again.. don't know what could be causing you that problem...
tyraelasd said:
I had this problem but it was due to the fact that I was using a custom rom/kernel, went back to stock and it's ok again.. don't know what could be causing you that problem...
Click to expand...
Click to collapse
Did you have the SAME problem where the Health and Safety warning image was
split to the left and right and middle of the image was empty?
I think I may have to reset the phone, install Oculus and run the VR and then I will try to
root again (using stock ROM).
WatchFan1 said:
Did you have the SAME problem where the Health and Safety warning image was
split to the left and right and middle of the image was empty?
I think I may have to reset the phone, install Oculus and run the VR and then I will try to
root again (using stock ROM).
Click to expand...
Click to collapse
Yes, the same exact problem. Solved going back to stock.
Thank you for the reply.
After you went stock and reinstalled Oculus and everything went well - did you try root again?
As much as I obviously want to run the Gear VR, I'd hate to lose the root. (With root, Greenify and other tweaks, my phone runs like a champ and battery is phenomenal)...I really need to hear from guys here that run rooted N4 and Gaar Vr and see what they did (the sequence of install / root etc.)
WatchFan1 said:
Thank you for the reply.
After you went stock and reinstalled Oculus and everything went well - did you try root again?
As much as I obviously want to run the Gear VR, I'd hate to lose the root. (With root, Greenify and other tweaks, my phone runs like a champ and battery is phenomenal)...I really need to hear from guys here that run rooted N4 and Gaar Vr and see what they did (the sequence of install / root etc.)
Click to expand...
Click to collapse
I'm rooted and that doesn't cause any trouble with the VR. I'm with the s6 though... can't talk for the N4. Now, I'm not so happy that I can't install custom roms or custom kernels and get the VR working, I've always been a custom kernel/rom kind of guy so this makes me sad.
Do you plan upgrading to 5.1.1 anytime soon? I haven't been to find the answer if the VR works flawlessly with 5.1.1.
Thank you for your reply, tyraelasd !
I hope to hear from someone that runs rooted Note 4 and GVR.
Here is my last 'Hail Mary Pass' attempt to solicit some more opinions before the weekend as I am not looking forward at all to the hours I will waste on wiping and resetting my phone :lol:
The same build number and same kernels between my wife's and my N4 still make me think that rooting should not be causing this, but it looks that unless some other fix comes up, I am going to have to do factory reset (un-root) and reinstall and reconfigure all the apps this weekend
Is anyone here running rooted Note 4 and Gear VR ?
If yes, what was your sequence of rooting, installing Oculus SW etc?
If you are rooted, what build, ROM and kernel are you running?
Thanks in advance!

Question How do i downgrade from v13.0.2.0?

Installed it yesterday without looking, and oh god Android 12 (and the new update) is so much worse. For some reason now on 60hz my phone constantly stutters, and overscroll is literally making me feel nauseous (and it seems like you can't turn it off without turning ALL animations off), not to mention a lot of other stuff that makes using my phone uncomfortable for me.
So i looked into downgrading/custom ROMs, and thought i'd give downgrading a try. So from what i've gathered so far those are the steps i would have to take to downgrade my phone.
Enable USB Debugging on my phone through Developer Options
Install ADB and Fastboot driver on my PC from here
Download a Redmi Note 11 Global Fastboot ROM that i want from here
Download and install MI Flash Tool from here
Make sure that my phone is at 100% charge, then turn it off, and turn it on in Fastboot mode by holding Volume Down+Power.
Connect it to my PC with USB and open Mi Flash Tool
Select the ROM folder
Select "save user data" at the bottom right
Click "flash" button at the top right and wait for the install to be done
I wanted to ask people here who know a lot more about this whether those steps are fully correct, or if there's something i missed. Also some general advices would be nice.
That's weird. Updated my spesn EU version a few days ago to 13.0.2.0 and it's hard to see what's changed from 11. No new problems that I've noticed.
Could you try a factory reset before rolling back to 11?
Wilbo2016 said:
That's weird. Updated my spesn EU version a few days ago to 13.0.2.0 and it's hard to see what's changed from 11. No new problems that I've noticed.
Could you try a factory reset before rolling back to 11?
Click to expand...
Click to collapse
Overscroll is in Android 12, and i wasn't able to find any info on how to turn it off without also turning off all animations.
Notifications and any google app are ****-colored now due to dynamic theme color in Android 12, simply cause of my wallpaper, and there doesn't seem to be a way to turn it off.
Perhaps doing a factory reset would solve the stuttering on 60hz, but it wouldn't fix those
IncredibleFrog731 said:
Overscroll is in Android 12, and i wasn't able to find any info on how to turn it off without also turning off all animations.
Notifications and any google app are ****-colored now due to dynamic theme color in Android 12, simply cause of my wallpaper, and there doesn't seem to be a way to turn it off.
Perhaps doing a factory reset would solve the stuttering on 60hz, but it wouldn't fix those
Click to expand...
Click to collapse
I'm a simple user and don't use animations or fancy themes, and I don't use it for games. My phone is a tool for comms, specialised apps and internet only and updating to 12 just sort of happened with the November security release. I hope you can sort your problems as the Note 11 is an amazing phone for the price.
Its always a rule of thumb that you should factory reset your phone after an android version update. This way it runs better and smoother. Before downgrading try reseting it and the see and even if it doesn't resolve then you can try downgrading.
Mine got updated to A12 and i immediately formatted it and now using it without an issue. Though there are no huge changes as the original A12 has like material you engine but its working fine.
After updated to Android 12 EU Version i cant See any issues. My Phone even runs better and smoother than before. I didnt Do a reset.

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