yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Watch] shubham555:
A very much thanks to @adfree 🙌 🙌 🙌 , He solved my issue.

As suggested by @adfree, I Just changed the PC and the firmware got flashed in < 10 minutes.

MyPC specs:

1st PC , win10 64bit, 16 gigs of ram , i7 vPRO, 512GB SSD

2nd PC , 4GB RAM, 1TB HDD, dual core, also win 10 64bit,,, and this system flashed my firmware in just 10 minutes, (don't know what is wrong with netodin3)

I even managed to change my region, so earlier it was on INDIAN region (INU), I changed to XAR (USA) ,

Now, samsung pay is working flawless, Added HDFC CC and bunch of others, working fine. I have Redmi K20 Pro so, samsung phone is also not required for SPay.

What firmware/steps I have used finally?

Just follow the TechnoProz guide, to flash the firmware stock and combination.

Try firmware version with your current one, as my watch is on latest DUA3, Tizen 5.5.0.2.

I have purchased latest stock and combination firmware for Tizen 5.5.0.2 from here (www.fullstockfirmwaredownload.com), it cost me $3 for both. Both are working fine.

Why trying with other PC solved the issue?

If you are getting too much time to flash firmware using netodin3 and meet the error after rootfs.img/Xmit line , XMIT is something related to WIFI (according to @adfree ) , so changing the PC can help (works for me).

Still, I have not get ECG, BP even after the latest update and for XAR regions.
[Samsung Galaxy Watch] Zecaronix1:
bro!! please help me!! each time I have a problem with my Xiaomi K20 Pro, always restarted the firmware and had to reconnect the active 2 to the phone, but the watch never reconiced the phone so have to enter recovery mode and rebooting, at the end...it always works....until now....every time I do the same method, it says contact to support or something like that,...COULD U PLEASE HELP TELLIN HOW TO FIX IT BY WIRELESS MODE OR ANY METHOD U USED?

THnks so much! answer here or text me +51927427022 (whatsapp or telegram)
[Samsung Galaxy Watch] shubham555:
pls share watch details, and proper steps also,, what have you followed till now.

If are able to go into wireless download mode than you u can try to flash stock firmware

If xmit error comes in netodi3 flashing, try with other pc.

if netodin3 failing with another errors, try to flash with USB.
[Samsung Galaxy Watch] Zecaronix1:
Hi and thnks for answering! I have a bigger problem now. I used to fix my bluettoth connections with my watch and my phone flashing my watch and always worked, until now... Every time i try to flash with netOdin, it works and shows a GREEN PASS, but the phone, at the end, it always shows the same messagge.. COULDN'T CONNECT TO THE PHONE, TRY TO CONTACT SUPPORT...please help me!

*Maybe giving some different files to flash or another method....

*I always flashed it with wireless mode
[Samsung Galaxy Watch] adfree:
@Zecaronix1

More details...

A

Exact Model Name?

SM-R820 or LTE Variant SM-R825F or Playstation or Gameboy?

B

Filenames you have used in netOdin?

This helps to identify if you used too old outdated Firmware... or other problems..

Best Regards
[Samsung Galaxy Watch] Zecaronix1:
A

SM-R820 bluetooth model

B

B.1

AP_R820XXU1ASHF_usr.tar

BL_R820XXU1ASHF_usr.tar

CSC_OXA_R820OXA1ASHF_usr.tar

B.2

AP_R820XXU1BSI9_usr.tar

BL_R820XXU1BSI9_usr.tar

CSC_OXA_R820OXA1BSI9_usr.tar

I used these 2 files some many times until some of them work but, now, any of them work....
[Samsung Galaxy Watch] adfree:
These files now outdated... obsolete.

Because Samsung Rollback Prevention crap...

You need newer Files...

DUA3 for instance... because Tizen 5.5...

Tizen 5.5 files are somewhere... sorry less time to search now for you in XDA...

Later maybe more time...

Best Regards
[Samsung Galaxy Watch] Zecaronix1:
I paid for these files:

AP_R820XXU1DUA3_usr.tar

BL_R820XXU1DUA3_usr.tar

CSC_OXA_R820OXA1DUA3_usr.tar

and it's the same CONTACT SUPPORT problem...

i have no idea of what to do.... sometimes worked with factory command but now NOTHING WORKS...

SOME ONE HELP ME PLEASE!
[Samsung Galaxy Watch] adfree:
I have limited time and motivation... sorry...

A

DUA3 is here for free.

https://xdaforums.com/t/firmware-r820-r830.4161883/

B

IMHO Combination Firmware Tizen 5.5 is also somewhere ... IMHO...

ATJ1 for Tizen 5.5 uploaded from me ...

File-Upload.net - COMBINATION-FT55_R820XXU1ATJ1.tar.md5.7z

Datei: COMBINATION-FT55_R820XXU1ATJ1.tar.md5.7z. Die Datei wurde von einem User hochgeladen. Laden Sie auch kostenlos Dateien hoch mit File Upload.

www.file-upload.net

Somewhere allready posted...

C

No idea yet, what you mean with nothing works...

Can you give exact status?

Maybe make Photos to bypass my limited English skills...

Best Regards
[Samsung Galaxy Watch] Zecaronix1:
nothing works means that always has the message from the picture

I flashed with DUA 3 files and still the same thing....(wireless download mode)

help please!
[Samsung Galaxy Watch] skinarg:
were files?
[Samsung Galaxy Watch] Jags2901:
Hi There,

I bricked my Galaxy Watch Active 2 (CB15) while trying to change the region. I was trying to change the region from US to CANADA. But I think I flashed the wrong combination firmware.

Details about the watch:-

Model Number - SM-R825U

Serial Number - RFAMB0NW9CV

TIZEN - 5.5.0.2

Software - R825USQU1DUK3, SM-R825USSAXAR

Previously my watch was running totally fine then I tried to change my region from US to Canada. I followed the guide from TechnoProz YouTube channel. I downloaded (COMBINATION-FT40_R825USQU1ASL2.tar.md5) and flashed is on my watch. It was being flashed without a problem but a the end of the process. It failed on the last process. I don't know the exact error code, because I did close the NETODIN after that. After getting the error the watch stuck in the download mode and did nothing. Then I force rebooted the watch and it stuck in a boot-loop. After that I tried to restore it to the stock firmware. But I am unable to find the stock firmware (R825USQU1DUK3) that was installed on the watch previously.

Then I force turned off the watch and left if for a day. Then I rebooted the watch next day, now it is showing some error code that is like this

RST_STAT =0x1000000

ECT : PARA0022

LPDDR4 manufacturer = Samsung

LPDDR4 process ver =D18

LPDDR4 size = 1.50 gb

LOT_ID = NHAAZ

CHIP_ID = 03f51dbace46

[TMU] 27

nAsv_TABLE: 2

nAsv_CPUCL0: 4

nAsv_CPUCL1: 4

nAsv_G3D: 4

nAsv_MIF: 4

nAsv_INT: 4

nAsv_CAM_DISP: 4

nAsv_CP: 4

nAsv_PMIC: 0

View attachment 5537315
[Samsung Galaxy Watch] jayant242:
Dude How do you solved the Brick one. I m trying to do the same but unfortunately it is now showing nothing except a black screen do you have any idea?
[OnePlus 9 Pro] xqyang:
I want to use the wallet application in Oxygen OS, so I extracted the "FinShellWallet.apk" and "KeKeUserCenter.apk" applications from the coloros of oneplus 9 pro and installed them in Oxygen OS. The wallet application can be opened and logged into the account normally, but when I use the access control or bus card function, it always prompts me to turn on NFC. In fact, NFC is turned on. I suspect that the NFC driver of Oxygen OS and Coloros is different. So I extracted the "NFC service_11.0.12.210222.apk" from coloros, and planned to install it into oxygenos, but the message "application not installed" was prompted during the installation. Does anyone know how to solve it? The attachments are the three applications I extracted.
[OnePlus 9 Pro] xqyang:
Apks:

apks

Folder

1drv.ms
[OnePlus 9 Pro] NoFatePPC:
Hey, do you still have the APK? I want to use the wallet app too on my OnePlus, seems with that app you can emulate cards...

Thnx
[Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe] ct_moi:
Hi guys,

I'm still on A10 RR rom; but I'm looking to change to A11. Is there a A11 rom with automatic call recording, alarms & wakelock blocher ?

Thanks.

Eric
[Touch Diamond, MDA Compact IV ROM Development] chris0106:
anyone who can release o2 uk for diamond fw

thanks for your help

i need it
[Touch Diamond, MDA Compact IV ROM Development] Addicteddddd:
the O2 firmware is around if you search :]
[Touch Diamond, MDA Compact IV ROM Development] chris0106:
no correctly

can you let me know where to found it or link ?
[Touch Diamond, MDA Compact IV ROM Development] chippieuk:
I was looking for this too so I have a backup before I change the ROM on my Ignito.

I couldn't find it though, and have spent the last hour and a half searching. Did you manage to find it yet?

I did dump the rom from my phone, but am struggling to make it back into a flashable rom. Would prefer to get hold of a known working original o2 ignito rom.
[Touch Diamond, MDA Compact IV ROM Development] wardy:
I dont think anyone has dumped one yet.

Looks like you guys could be the first . Just run through the tutorial on making a backup of your ROM then post it on here .
[Touch Diamond, MDA Compact IV ROM Development] chippieuk:
I've already done that, I now have Part00.raw, Part01.raw, Part02.raw and Part03.raw.

As I understand it, Part01 and Part02 make up the ROM.

I did download a kitchen to try and make up a flashable rom myslef, but can't quite figure it out.

If I posted Part01 and Part02 would other people make up a flashable rom (and test it)??
[Touch Diamond, MDA Compact IV ROM Development] wardy:
I dont see why not . Lots of clever and helpful people on here . This is what the forum is all about
[Touch Diamond, MDA Compact IV ROM Development] chippieuk:
I think I've managed to figure it out, and i'm about to remake the rom from the stuff I dumped from the phone. Will then try flashing it back and see if it works.

As I understand it, I can't brick it doing this as I haven't messes with the SPL yet, so if it does all go wrong I can then install a hard spl and then flash any rom I want.

Please correct me if i'm wrong and about to brick my phone.
[Touch Diamond, MDA Compact IV ROM Development] Mike Wilson:
I have been searching for the o2 ignito shipped firmware for a few days now and cannot find it.

If you know where to get it could you please point us in the right direction.

I like to have the official rom available before I start flashing.

Thanks in advance.
[Touch Diamond, MDA Compact IV ROM Development] Ravin_Dave:
Chippie, you managed to do this succesfully yet mate ?

I'm thinking along the same lines as you atm, but I'm a n00b when it comes to cooking. Wouldn't know where to begin despite all the info out there. :o
[Touch Diamond, MDA Compact IV ROM Development] chippieuk:
I really don't know.

I've dumped the rom, and then done all the stuff in the rom kitchen, but don't know if what I have ended up with is an actual working rom image.

I'm reluctant to actually try it on my phone in case I brick it.

I've pretty much decided to wait until O2 release an updated ROM before I put a different rom on my phone so that I have an official rom to go back to if needed.
[General Topics] Uranya:
Dear friends,

for months I was struggling with the auto-created folders named LazyList and LOST.DIR

These are folders that are created automatically by the file system, but sometimes I have found, especially in the LOST.DIR folder, duplicated and previously deleted files, also big, very big ones.

Why a so great waste of storage?

So I wanted to get rid of that!

And after some "Guru meditations" I have found the trick to achieve it.

It is a very simple trick, that's related to the file system itself.

Since it is a rule that

where there is a folder there cannot be a file with the same name

, simply creating a file with a specified name will make it impossible, even to the system, to create a folder with the same name, and vice-versa.

So, if we want to get rid of the infamous folder LOST.DIR, simply delete it and create, a, even empty, file with the same name!

The file system will be forced to not create that folder, anymore!

Freedom to manage storage.

Man vs Filesystem: 1-0

Hope this will be useful to everyone that takes care of their storage
[General Topics] User699:
I must say I didn't believe it, so I tried to create a lost.dir folder and lost.dir file in the same directory on my computer.

And you were right!

Thanks for sharing!
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] Gabriel260BR:
Known issues:

VoLTE

bt calls

Permissive selinux
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] Rtix:
i will test :) thanks
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] 1Mrpie1:
Can u make a video how to install rom pls because i have search on yt for samsung a30 custom rom but it was not there
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] Esmailmahmoud:
I will try it. Are there problems with the camera or the interface is small?
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] Hasanast:
Hello

i am using an A305F and I tried flashing according to instructions

but after I am done flashing the rar, I press reboot and it keeps going directly to download more/fastboot more,
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] joel_sinbad:
Flash this recovery and reboot, it worked for me:

twrp_10_BY_IGOR&Bharat+Dev+Burman.tar

drive.google.com

Edit: Ok, I liked the ROM, very fast, but proximity sensor doen't work for calls, and my phone wants to format my 128GB Sandisk, it worked well on stock ROM, so no... guess I'm going back to stock
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] mleimnek:
mobile data is not working and i cant download anything from playstore, it says "download pending"
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] Borkode:
Go to TWRP and reboot into system.
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] GloBoB:
Stuck in boot animation, waited about 20 minutes, reset it, and still got stuck on that stage

model: A305GT

EDIT: 4.9 causes to bootloop, i installed 4.8 and works well
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] ardashir-xXx:
The best ROM in the world with unique features
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] ardashir-xXx:
You send the patch to the front camera hole
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] lnrdx:
Hello. I'm right now i'm trying to make whole process to install the custom firmware. I have installed custom firmware on other devices in the past, but while looking for the TWRP image for the Galaxy A30, I see the page is recomending me to flash a "pre-rooted" image of TWRP instead. Can you root TWRP images like .tar firmware files with Magisk?

related link: https://twrp.me/samsung/samsunggalaxya30.html
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] boomyi12345:
work Korea version?
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] buick1356:
Not working going to dm on boot
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] Jasa2711:
Any solution so that it doesn't give me a bootloop, I tried everything but I couldn't get out of there, I've seen videos of people installing the rom without problems, but I don't know why it won't let me, the only rom that doesn't give me a bootloop it's AOSP and Pixel extended, but i want to try this rom
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] beraca:
Use stock Vendor.
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] Jasa2711:
Excuse me, what do you mean by stock vendor exactly? I'm new to this, I hope you understand me
[Samsung Galaxy A30 ROMs, Kernels, Recoveries, & Ot] beraca:
Flash OneUi 3.1 stock vendor before installing any rom.
[Xiaomi Mi 11 Ultra] ingbrzy:
How to install Xiaomi.eu ROM for Xiaomi MI 11 Pro / Ultra

We will release fastboot ROM versions until TWRP for star/mars is released TWRP RELEASED

Steps to install xiaomi.eu ROM for first time from China ROM (All your data and files on internal storage will be deleted!)

- Update your stock ROM to the latest via updater app first..

- Unlock your bootloader by Mi Unlock tool https://en.miui.com/unlock/

- Download our ROM zip file BETA or STABLE

- If you are on Windows: Right click on downloaded zip - Settings - Unblock zip content

- Unpack downloaded zip file in the PC

- Reboot your device to fastboot mode (press volume down + power)

- Connect to PC via original USB cable

- Run fastboot installation script as administrator from unpacked zip according your PC operating system

For Windows OS ./windows_fastboot_first_install_with_data_format.bat

For Linux ./linux_fastboot_first_install_with_data_format.sh

For MacOS ./macos_fastboot_first_install_with_data_format.sh

- After reboot its done (first boot may take up to 15min)

Steps to install update of xiaomi.eu ROM (All your data and files on internal storage will NOT be deleted!)

- Download our ROM zip file WEEKLY or STABLE

- Unpack downloaded zip file in the PC

- Reboot your device to fastboot mode (press volume down + power)

- Connect to PC via USB cable

- Run fastboot installation script from unpacked zip according your PC operating system

For Windows OS ./windows_fastboot_update_rom.bat

For Linux ./linux_fastboot_update_rom.sh

For MacOS ./macos_fastboot_update_rom.sh

Update guide on the video

- After reboot its done (first boot may take up to 10min)

Update via OTA:

Installation via OTA is currently not possible due to missing TWRP

Updater will notify you about new version and download it to your device for you

You have to copy it to your PC, unpack it and run fastboot_update_rom sctipt

Enjoy.. :)

-----------EDIT 20.5.2021--------------

Since weekly 21.5.20 and Stable 12.5.7.0, we are releasing TWRP version of our ROMs for MI11Pro/Ultra..

TWRP install via fastboot command

fastboot boot twrp.img

To change TWRP language to English, press bottom right button and select English..

TWRP for MI11Pro/Ultra mars/star

For install ROM, just select in TWRP - Install - ROM zip - reboot

Enjoy.. :)
[Xiaomi Mi 11 Ultra] boober78:
Thank you, for sure will make a donation as I've used few iterations of XIaomi EU already. Just one question. Will 5G work? As previously some users were reporting that after flashing to Xiaomi.eu it didn't.
[Xiaomi Mi 11 Ultra] ingbrzy:
5G is shown only when device is using 5G network.. not just when 5G coverage detected like in China ROM..

screenshot from China ROM "Fake 5G".. showing 5G but connected to 4G/LTE..
[Xiaomi Mi 11 Ultra] veimus:
Deleted
[Xiaomi Mi 11 Ultra] chistery:
Once I flashed the xiaomi.eu rom on my Mi 10 ultra I never managed to get 5G again, so it wasn't just when it wasn't being detected. This was reported by others so will wait to see what others say before I do mine this time.
[Xiaomi Mi 11 Ultra] jirka607:
I think its not the case for example in our subway there is only 5G coverage, so with china rom i have 5G and everything works perfectly but on xiaomi.eu i have no signal.....
[Xiaomi Mi 11 Ultra] pafc66:
Is there any point in installing this rom when global stock rom is available to flash over the CH version?
[Xiaomi Mi 11 Ultra] kuba319:
I heard many opinions about the advantage of xiaomi.eu over global rom but I would also like to know what to do, because I would like to change the rom immediately after unlock
[Xiaomi Mi 11 Ultra] wching02:
I just installed the eu rom about for about 4 hours age and every thing seen fine. You can just follow the above youtube to install it very easy no problem at all!
[Xiaomi Mi 11 Ultra] overdom:
Is this ROM working on the Chinese-only Mi 11 Pro?
[Xiaomi Mi 11 Ultra] wching02:
I believes so!
[Xiaomi Mi 11 Ultra] chistery:
There's posts in the xiaomi.eu forum saying they now have the same issue with the Mi 11 Ultra. As soon as they use the xiaomi.eu rom, they lose 5g.
[Xiaomi Mi 11 Ultra] veimus:
deleted
[Xiaomi Mi 11 Ultra] chistery:
I'm not sure I agree. In the same places where 5G worked with the CN rom, I got 4g speeds with the xiaomi.eu rom, 5G just didn't work once I'd flashed it. Others all had the same issue.
[Xiaomi Mi 11 Ultra] veimus:
I will test my phone with that 5G, if I have 5G network in my area to see what the story with that.

Global ROM also loose 5G ?
[Xiaomi Mi 11 Ultra] ingbrzy:
can you post screenshot from About phone screen? thank you
[Xiaomi Mi 11 Ultra] vendetta17:
It looks like latest xiaomi.eu version for Mi 11 Ultra fixed some 5G related issues . If they are related to 5G connectivity for China Version , that would be brilliant .
[Xiaomi Mi 11 Ultra] Machine_Head:
Good day,

I am trying to get my phone out of fastboot loop.

My device is CN version. Here are the steps I have done.

- bootloader is unlcoked

- tried flashing EU stable and weekly rom

- tried MiFlash tool to flash a stock CN rom.

All ended up in fastboot loop. Anyway I can revive my device?

Thank you for your help.
[Xiaomi Mi 11 Ultra] ingbrzy:
seems only via EDL mode..
[Xiaomi Mi 11 Ultra] Machine_Head:
Thank you. I will learn how to do it.
[Xiaomi Mi 11 Ultra] simon501:
And to confirm still reports 512gb capacity? Thx
[Xiaomi Mi 11 Ultra] RheinPirat:
When I switch from "Stable" to "Weekly" will I lose my data aka wipe? Or can i flash it over stable?
[Xiaomi Mi 11 Ultra] RheinPirat:
*double post*
[Xiaomi Mi 11 Ultra] speedtripler:
You can try to flash it over the top but the particians are different and it probably won't work without a clean install w data wipei

I tried it going from Eu stable to weekly and it didn't work so I imagine it doesn't work in the reverse direction either
[Xiaomi Mi 11 Ultra] speedtripler:
Yes, it's still 12/512 on Eu stable/ weekly
[Xiaomi Mi 11 Ultra] varun.gid:
I flashes the new 12.5.7 update STABLE yesterday. I'm seeing high battery usage of Android System and Cell standby. Anyway to fix this? Barely getting 4 hours SOT. With 12.5.4 was getting better results.
[Xiaomi Mi 11 Ultra] RheinPirat:
For me too. 12.5.4 better, but still not good. I had a OP7Pro before with HavocOS and the 4500mAh battery hold up to 8h SOT....
[Xiaomi Mi 11 Ultra] jericho246:
Same here. Significantly worse battery life on 12.5.7 compared to 12.5.4.
[Xiaomi Mi 11 Ultra] :
If someone cares in the latest weekly .eu you can use the 2nd screen with all Camera modes, except Pro Mode.
[Xiaomi Mi 11 Ultra] YoSoyCarlosG:
Hey guys. If I want to go back from EU to Chinense stock, should I flash fast boot or recovery file?
[Xiaomi Mi 11 Ultra] speedtripler:
No
[Xiaomi Mi 11 Ultra] :
Yes you can.
[Xiaomi Mi 11 Ultra] speedtripler:
how?
[Xiaomi Mi 11 Ultra] :
Just open your camera app and you see a new icon on top left
[Xiaomi Mi 11 Ultra] cturbos:
Is there a12.5.7 fastboot rom ?
[Xiaomi Mi 11 Ultra] jericho246:
There is not. TWRP only.
[Xiaomi Mi 11 Ultra] xNAPx:
Hello everyone, I have a global version device, if I want to unlock the bootloader,install twrp and root is the guide on the first page updated for the global unit? Will I occur into signal\5g\ hotspot issues or it wirks flawlessy as stock experience?
[Xiaomi Mi 11 Ultra] eXelium:
Hello. I have used Mi 11 Ultra with stock ROM for some time and now I am considering switching to Xiaomi.eu ROM. What's the best way to copy media like photos and videos to PC and then back to the the phone? I would like the data to keep the timestamps so that media will show correctly in the gallery.
[Xiaomi Mi 11 Ultra] xNAPx:
I Heard that to unlock the bootloader you have to wait 168hours, if I want to do it ,firstly I need to bind my MI account to the phone. Does the count start from the moment I do this? To do it ,do I have to use the MI unlock option from the developers options right?
[Xiaomi Mi 11 Ultra] speedtripler:
Everything works on the EU stable

I did a 5g speed test yesterday in a mall , 350/100 which is faster than most wired connections in my country

Also wasn't in line of sight with the 5g mast so it's possible I may have gotten a faster speed outside

It uses about 0.5 GB of data to run a speed test on 5G so I have only tested it a couple of times to check it's working
[Xiaomi Mi 11 Ultra] veimus:
Hmmm, I'm also on 12.5.7 Stable, I also see Android System is on second place, but after ~4h30min SOT i have around 50% battery left. Maybe because i'm on 60Hz, and FHD+ screen resolution to save batter, and rear display- off :)

View attachment 5320413
[Xiaomi Mi 11 Ultra] lord219:
Is it just me or you also have issue to turn on rear display for taking selfie with back cameras? I can't fins any settings to turn it on.

[Solved]UPDATE: Turns out the button is now located in a different place.
[Xiaomi Mi 11 Ultra] xNAPx:
Could somebody explain to me what's MI unlock in developer options, please?