yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] AlexBrookes:
Thanks for the port, works like a charm!

Probably not the place to ask, but does anybody know of any ROMs that are compatible with this phone? I realise it will probably be GSIs, but does anyone also know if it's partition A, B or AB?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] chris-89:
Havoc OS should work well.

It's A/B.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] Sparko612:
As from screenshot our partition is a only hope that's helps
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fahadali2315:
Use A/B .

Follow the link for more information

Link to Phh

PS. Working GSIs on A30/A40 right now are

Lineage OS 16.0 build by AndyVan

Havoc OS GSI

Phh Aosp 9/10

More maybe. But these are the most stable ones.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] chiri137:
Nice, thanks! ill be trying it out. Here's the link: https:// www - android-hilfe - de /forum/samsung-galaxy-a40.3537/rom-gsi-inoffiziell-pie-lineageos-16-0-andyvan.928318.html (apparantly i cannot post urls yet :/)
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fahadali2315:
Dont post unofficial links. :) there is official link here

https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-(GSI)-list
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] LittleCherryFox:
Hewoo.

Can someone please make a guide how to install gsi rom to galaxy a30/a40 X)

I just a bit stupid and I never install custom roms on a samsung device before X3
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ashyx:
There are a million guides available, easily found, how to install custom GSI's.

There is no need for another.

Start here:

https://www.xda-developers.com/flash-generic-system-image-project-treble-device/amp/
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] AlexBrookes:
Does anybody know how we would go about making a forum for the Galaxy A40? I'm looking into making some ROM ports and it would be nice to have an official forum for it.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ashyx:
This is the official ET forum. The admins will monitor it and give it a full forum if and when it warrants it.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] protonplusminus:
this one?: https://xdaforums.com/t/samsung-galaxy-a40
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ashyx:
This thread is already part of the ET forum you just linked.

If you open the thread in a browser and click the Tag at the bottom it will open the ET.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] Sparko612:
To make it very simple once you have bootloader unlocked and twrp installed, wipe cache, dalvik cache, data and system partitions install gsi rom then reboot to recovery then normal boot
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] mbaier:
what is gsi room ? and what about root ? is it enough to unlock botloader and instal TWRP ? Or root somehow first ?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] Sparko612:
If you want to use only stock rom rooted then yes that's fine but this is best method for root guide, a gsi is a generic system image which flashes over system partion hence why the system partition needs to be wiped before install
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] mbaier:
thank you..where can I find tutorial to do that ?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] Sparko612:
Check start of thread for stock root and please follow carefully

---------- Post added at 08:07 PM ---------- Previous post was at 07:10 PM ----------

can someone help me everytime i flash twrp on stock i get unmodified system partition and when i reboot i get loads of strange folders and unable to use internal storage ??
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] Sparko612:
Internal storage issue gone after reflash stock but now everything working perfect now
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fahadali2315:
Thats because you didnt read the instructions in OP.

It clearly states you have to wipe your internal storage aswell the first time. As twrp cannot properly decrypt samsung internal. So we have to wipe.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ashyx:
FORMAT ;)
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
Twrp don't work with the new firmware (october)
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] tys0n:
Yupp, I noticed that too today. Bootloop on logo with A405FNXXU2ASJ1 after flashing twrp.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
hello, did you find any solution?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] kinguzzo:
Bootloop

Hello everyone,

I've tried the guide but its ended in a bootloop.

Those are steps that i've followed:

1)Unlock OEM (both in developer's options and in download mode)

2)KGstate = checking

3) Twrp_A40.tar installed via odin correctly

4)Logged in TWRP and flashed a40_multidisabler.zip

5)Formatted internal storage (doubt:have I erased stock rom in that way??)

Result- Boot loop with samsung saing that there is no official software on board.

What should i do?

I didn't installed Disable_Dm-Verity_ForceEncrypt_05.21.2019.zip and GSI_MTP_Enabler_a40.zip because it seems from guide not necessary if i would just have the root grant. Isn't it?

NOTE: atm i still have twrp and I'm able to use it.

Thank you for support
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ruffyrisco:
If you want to use Stock, just use Disable_DM_Verity and no GSI_MTP. Otherwise it won't work.

I didn't test multidisabler but Disable_DM_Verity works well.

Remember: TWRP doesnt work with october firmware!!

Before you flash your stock again, wipe and format Data (advanced wipe).
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] jasyx:
Is it possible to downgrade?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ruffyrisco:
Yes of course, just load an old stock rom from here and flash with odin:

https://www.sammobile.com/samsung/galaxy-a40/firmware/SM-A405FN/

You have to restart from scratch, means

1. Install firmware

2. Enable Unlock bootloader in oem-settings

3. Unlock bootloader

4. Flash TWRP

5. Root (if you like)

6. enjoy (and wait for a possible twrp update...) :D
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] jasyx:
Okay I will try that, thanks!
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fahadali2315:
Yes. Waiting for October sources.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] tys0n:
Downgrade works as long as it the same binary version. In this case U2.

You won't have to unlock bootloader again since it's already unlocked. Flashing full stock won't change that.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] kinguzzo:
tys0n was right. I tried to downgrade from october's update but, cause the U2 version of bootloader, it wasn't possible. So atm I've just re-flashed the last version of stock firmware and waiting for news...

Just a note: Once you have unlocked bootloader, although I have flashed original BL back again, a warning image is showed indicating that the bootloader is unlocked. So I've customized the stock rom as indicated in following thread

https://xdaforums.com/galaxy-a30/ho...g-unlocked-t3954589/post80016189#post80016189
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] tys0n:
You tried to flash back to U1 firmware?

Yes, warning will be there as long as bootloader is unlocked. You can also check out my bootlogo thread for A40 in case you're intrested. TWRP is preferred though.

https://xdaforums.com/android/development/galaxy-a40-sm-a405fn-bootlogo-mod-t3947628
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] justmemike:
Hello ....working like a charm... :) thank you !!!!!!!!!!!!!!!!

U1ASE3

1. unlocked bootloader...

2. oem unlock (i used chimera tool for that)

3. flashed TWRP

4. Format and reboot to recovery...

5. Flashed Multidisabler and reboot to system...

One question ...?? its possible to change screen warnign about unlocked bootloader ?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ponces:
deleted
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] CyrXIII:
Flashing back to A405FNXXU2ASG1_A405FNOXM2ASG1 works. No need to retreat further ;)
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] chiri137:
Hey all, I'm getting into a boot loop.. Help is appreciated.

Step:

1 Got twrp running

2 downloaded image from https://github.com/phhusson/treble_experimentations/wiki/Generic-System-Image-(GSI)-list

This is the image: "Official Android 10 Q" system-quack-arm64-ab-vanilla.img.xz

3 Then, since its XZ, i use zarchive to extract it to .img

4 Then I put it on an SD Card, I wipe entire phone in TWRP and install this image on "system" partition.

5 I install A40 MultiDisabler from zip.

Now i get into a boot loop.. Anyone can help? Thanks!:)
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] rocker1977:
Hello! Thank you for your effort, but unfortunatly it does not work. TWRP boots into blank, gray colored page
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ogust:
Hey. Thank you very much for your work! but, on a40 FN I tried the versions: TWRP_A40_A405FN_V3_ASJ1 and TWRP_A40_A405FN_V4_ASJ1 unfortunately a gray flickering screen ((

Will there be TWRP for the October update?

if so, how long to wait?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] thomasid:
Hi, I follow the procedure but when I load to system and install root checker, I always get 'not rooted' for A405FN.

Which of the zip files have to be installed with TWRP?

Thank you
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] the executioner:
https://www.dropbox.com/s/v6rsy9b8oyruwrq/twrp-a40-3.3.1-0_afaneh92.img?dl=0

Hi everyone ... I found this twrp for a40..I don't know if it works maybe someone can try and let us know ...
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
hello all

with SJ1 nothing works yet (TWRP_A40_A405FN_V4_ASJ1 nor v3)

ahadali2315 should write it on his post...
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] mrqwerty19801980:
Update

Right, I have read all this tread and for what I can tell you must downgrade your firmware to before the October update and then follow the tutorial to flash TWRP and other zip files stated. Has anyone tried this method and succeed?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] Lenny Bard:
The only solution if you are on a SJ1 firmware and you want TWRP is to flash SG1 firmware. Tested and approved ;)
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] chiri137:
Now everything seems to work!

I've installed all of these:

A40 MultiDisabler

GSI_MTP_Enabler

except:

DM-VerityDisabler&ForceEncrypt
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
Which firmware ?

Envoyé de mon SM-A405FN en utilisant Tapatalk
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] chiri137:
https://www.android-hilfe.de/forum/...om-gsi-offiziell-pie-havocos-2-29.927501.html
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ponces:
I believe [MENTION=2998038]fredapied[/MENTION] mean't which Samsung firmware did you flash before flashing the rom you mentioned.

Was it October's update? Version name ends in SJ1

Or the one from July? Version name ends in SG1
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
Yes ponces you're right !

I mean The samsung's firmware.

I think there's nothing yet for the latest firmware.

Envoyé de mon SM-A405FN en utilisant Tapatalk
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] Italiandoitbetter:
Hi, according to you, could this process work with A70 A705FN ? thx
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] BangaJuice:
My phone is in a loop boot

After following these instrucions my Samsung A40 keeps looping while prompting these messages :

"The phone is not running Samsung's official software. You may have problems with features or security and wont be able to install software updates"

followed by

"This phone's bootloader is unlocked and its software integrity cannot be verified. Any data on this phone may be vulnerable to attackers. Dont store any important or sensitive information on this phone."

Could i get some help ? it is my first time installing TWRP on a samsung device and i wonder what has gone wrong...

Edit: ive had october update installed, so maybe should i flash a previous samsung firmware ?

Edit 2 : Flashed version A405FNXXU2ASG1 and then flashed twrp now everything works fine

Edit 3: Tried to flash SuperSU and then got into a loop boot, then repeated the process and attempted to flash magisk (it failed) and ended up again in a loop boot... can i get any help ?

This is how i proceeded : I flashed twrp then wiped the phone, flashed the multidisabler then immediatly after flashed magisk... and ended up in a loop boot

I note that to get out of the loop boot i flash the stock rom of build number A405FNXXU2ASG1 (july update) I have tried to patch the AP file with magisk manager but ended up on a stuck samsung logo after rebooting. I then reverted to the stock rom.

If anyone could help me, here is my discord: BangaJuice#2760 or simply reply to this message, i will answer as soon as i see it

BangaJuice.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
Actualy On the latest firmware, twrp doesn't work.

You Can change those warnings screens

See here

https://xdaforums.com/showthread.php?p=79884146

Envoyé de mon SM-A405FN en utilisant Tapatalk
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ponces:
New test version

Is there someone with the October's update installed (A405FNXXU2ASJ1) that could test this new version I built?

Download in this thread.

This was built from source using the kernel source files from Samsung's Open Source platform and TWRP's repo.

Thank you!
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
Same instructions ?

unlock.

[*]Reboot into download mode and FLASH included TWRP tar file

[*]Boot into twrp

[*]Format Internal storage in TWRP

[*]Flash the multidisabler zip

All data wiped ?

Have tried yourself ?

Envoyé de mon SM-A405FN en utilisant Tapatalk
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] BangaJuice:
I reverted back to The older version

I reverted back to The older version but when trying to flash magisk or superSU i end up in a loop boot
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ponces:
Yes, same instructions apply.

Did not have the time to try yet, but most probably tomorrow I'll try.

The free time I had this weekend was only to create the repos and this build.

But did you already try it?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
juste tested and... IT WORKS on the latest firmware SJ1

thank you very much ponces ! :D

and just made that after

2/ Root

just patch the boot .img and the root is kept (no need to power on the phone in TWRP or power it with Vol+ and power)

3/ Modded the bootlogo

:good:
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ponces:
Yes, I can also confirm that it works! Great!
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] the executioner:
great .... I haven't tried it yet and I wonder if anyone can describe well how to flash everything ... thanks dev
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] BangaJuice:
twrp

After flashing twrp in odin and wiping the phone go into Install -> Select storage -> then install the different zips you have downloaded on your sd card (only flash the multidisabler if you dont need the other ones)
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] tys0n:
Hi. Nice to see twrp got updated. Any chance you can share it somewhere else. I can't get it from the link you posted.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ponces:
You can try to use the link again.

I updated the boot.img to pass SafetyNet.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] tys0n:
Thanks for the quick link replacement!

I took the time to update to ASJ3, October patch and it's working fine so far :)

I didn't even wipe data in the update process and the only things I've noticed so far is that I had to re-add wifi password and re-set my rules for goodlock routines module to keep my phone unlocked while connected to my home wifi.

Other then that it all seem to work.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
Link don't work
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ponces:
Which one?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
Now ok

---------- Post added at 11:07 PM ---------- Previous post was at 10:52 PM ----------

Thank's for your job. How can I save the settings (language, clock)?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ogust:
perhaps you have not decrypted DATA
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
Thanks. But does nfc work for you?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
What are you talking about ? TWRP ?

Envoyé de mon SM-A405FN en utilisant Tapatalk
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
Sto parlando di quello che succede dopo che installo questa versione di twrp da zero.. firmware, bootloader sbloccato, flash recovery, flash multidisabler (I don't use other roms) and nfc doesn't work anymore, it doesn't turn off from the control screen
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] :
Hi. I was wondering what method you used to make the image file into an odin flashable file. I tried to use a tool to do this, but it screwed the firmware up and I had to re-flash it. So I am just wondering what method or program you used, because that might fix it.

EDIT: Nevermind, I must have downloaded it from somewhere else and thought it was from here, sorry.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
Which "image file" ?

Envoyé de mon SM-A405FN en utilisant Tapatalk
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] :
Never mind it, I am a bit stupid xD
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] :
I tried flashing this to my phone, but Odin just crashed. I have the latest version, tried both as admin and without it. I have flashed firmware on my phone with Odin before, so that is not the problem. It only happens when I try to flash this image. Any idea why?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
Are you using the right file corresponding to your phone's firmware ?

Did you put the file in "ap" ?

Is your phone well connected to Odin ?

Envoyé de mon SM-A405FN en utilisant Tapatalk
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] :
Not sure what you mean about using the right file corresponding to my phone's firmware, as I am not flashing firmware on my phone. I just said that I flashed firmware on it before and it has worked before.

Yes, I did put the file in AP.

Phone is well connected to the pc, with original cable, and it is being detected by Odin.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] fredapied:
I mean there is a file TWRP version for each firmware (sj1 ...)

Envoyé de mon SM-A405FN en utilisant Tapatalk
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] :
I guess so, seeing how this is TWRP recovery for the A40 (SM-A405FN), and I have the Exynos variant.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] tys0n:
You flashing this updated twrp for ASJ firmware? https://xdaforums.com/showpost.php?p=81126573&postcount=76
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] :
YES! Thank you so much! Worked like a charm! I now have it installed, but sadly there is now a new problem.

It says that I need to root with Magisk to prevent it from being removed. Now, I would normally make a thread about this, but I don't have enough posts.

Anyways, I tried rooting with Magisk with a video I found on youtube (https://www.youtube.com/watch?v=xHBDF9ErLkw&t=217s). I was unable to get it into download mode, am I missing something?

EDIT: Will try some other methods as well.

EDIT: Got it working! Thank you very much, fellow Scandinavian!
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] EnterpriseNCC:
work with flashify ?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] :
I got it installed, but everytime I try to flash disable DM-Verity it just goes into a bootloop. Here is what I did:

1. Formatted the system after installing TWRP

2. Installing it again

3. Booting into TWRP and clicking install and then choosing the disable DM-Verity zip file.

4. When it is finished, I boot back into system

Then there is a boot-loop that just continues. Turns on, gets past the first screen, then turns off again.

Is there a way to disable DM-Verity another way, or am I just doing it wrong?

I heard that flashing SuperSU or Magisk could also do this, is that right?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
Have mercy .. But is it normal that after the flash of this Twrp version, the NFC icon will no longer turn off? I use a stock rom and only flashed the multidisabler.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] :
Yeah this works wondering. Was able to flash it with no problems.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] centaurium:
Hello

A have a problem with flashing. A405FNXXU2ASJ1 firmware installed, OEM unlocked, but the updated TWRP_A40_A405FN_V1_ASJ1.tar flash is undone in the flashing procedure. Just stopped and not continuing. Any ideas?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] ruloes:
HELPPPPP

I need you help!!!

I was followed to root my new A40 and now it ´s rebooting randonly.

I opened the phone and disconneted the baterry but when i´m connecting again repeat this rebooting.

Please !!!!!!!!!!!!!!!!!
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] dnaa4:
I hope I'm not too late but I'm sure I can help you. first, you'll loose all off your data.

1. make sure you charged your phone for a while

2. while the phone is starting, press all three buttons at the same time (power + vol up + vol down). If you see a black screen, quickly release and press only vol up + vol down.

3. your phone should start in Download Mode. If the phone wants you to confirm, press vol up

4. download the firmware for your phone. It depends on the model number you have for your a40, but you should be able to download your Samsung firmware from sammobile . com . just type in your model number and download the firmware. you need a dammobile account to do that and the download will be very slow so you have to wait.

5. If you downloaded the .zip file, extract it using 7zip or any zip extracting tool. You should now have files beginning with BL, AP, CP, CSC, HOME_CSC.

6. now open odin. if you haven't downloaded it yet, just google: odin 3

7. connect your phone to the computer. select the BL button and open the BL file. then tap AP button and select the AP file. do the same for CP and CSC (important: if you pressed the CSC button, you have to select the HOME_CSC file!)

8. if you selected all 4 files, tap start.

9. the process may take a few minutes. If odin says "PASS!", you're almost done. you should be able to boot the phone. there may be warning that the phone wasn't able to boot (that's normal!). Just select the option "wipe data/factory reset" and confirm with yes using the power button to confirm and the vol up / vol down button to select.

10. your phone should start normally and you have to start the setup process.

I hope I was able to help you. If not, contact me and we will be able to solve the problem together.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
It works with the firmware of december?
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
On December firmware (SK2) it works, but NFC always stays on
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] tys0n:
I had problems with nfc not turning on earlier, when I flashed multidisabler.

Last time I updated and re-rooted (still on october patch) I used only dm-verity/forced encryption disabler and nfc is working fine after that.
[Samsung Galaxy A40 ROMs, Kernels, Recoveries, & Ot] xeroin82:
I solved it with nfc. Once rooted, I flashed twrp by deleting the internal memory then I restarted in recovery and deleted data and cache without flashing any files (original rom use). Now it works best.