Hello recently I tried to root my phone, wanting to fix ghost touch, I did something wrong and the phone stopped working, "Only official binary blah blah blah ..." popped up during startup, I decided to reinstall the official stock, the phone started working normally, even ghost touch repaired, I looked at the Root Checker application if I have root, it turned out not, which is all right, but when I want to add the card to google pay or open McDonald's applications, I get a message that the phone is rooted or was somehow rooted modified, what can I do in such a situation, please help me, I tried to install other stocks from other operators and restore the phone to factory settings: _ (
I saw one solution, probably in this forum where someone wrote to enable OEM Unlock and USB Debugging then disable and enable again, something like this, but I don't see OEM Unlock in the developer option, I know that with a failed root attempt, I somehow unlocked this option, but I don't remember how and I prefer someone to help me as best as he can, because I don't want to break anything anymore, I just want Google Pay to start working for me
OEM is probably hidden cause your device isnt older than 7 days. Connect to wifi and enable automatic time and date, than disable once done set the date atleast 7 day forward and oem should appear but you will have to lock ur bootloader before you disable oem and if you are running a custom firmawre make sure to backup data if you wanna go to normal firmware
But I use official firmware from some Samsung firmware site, i think my bootloader is locked, anyway do you have any solves to make work google pay?
I tried to unlock OEM but this solution with data & time doesn't work for me.
Hey, when I go to Google Play Shop there is an information that my device isn't certified, I tried to register my ID Device and still doesn't work can It be a problem, because of that Google Pay doesn't work?
syonox said:
OEM is probably hidden cause your device isnt older than 7 days. Connect to wifi and enable automatic time and date, than disable once done set the date atleast 7 day forward and oem should appear but you will have to lock ur bootloader before you disable oem and if you are running a custom firmawre make sure to backup data if you wanna go to normal firmware.
Click to expand...
Click to collapse
If i wait 7 days OEM option should unlock automatically?
Is it good idea to root this device correctly and use magisk to make google pay work good or for example root this device and then unroot to make work google pay?
Eco24 said:
If i wait 7 days OEM option should unlock automatically?
Click to expand...
Click to collapse
before you do this if odin says you are in custom mode backup all your data before doing this. no it wont automatically, first you have to go to odin mode and hold up for a bit until the screen shuts and shows the question (do you wanna lock your bootloader) you select yes once done if you are on custom it will bring up only odin mode before anything thats where u flash firmware, now that should get rid of the root, and then if u wanna disable oem connect to wifi disconnect date and time unselect automatically and go 7 days ahead and the option will appear.
How to check if i have custom mode and what i have to hold up?? please explain better because i don't know what i have to do
Related
Hi.
Before my question I'll write about my experience because I am sure it will help many many people.
As many of you, I always ROOT my smartphones.
Nowadays, the new phones, they come with this new technology to avoid root and other things called " OEM Lock " under the Developer's Options.
Following every step provided in the root guide for you phone, the new step to enable OEM Unlock under Developer Options
is a must!
The only thing that they don't say is that you MUST leave OEM Unlock ALWAYS ENABLED during and AFTER the root, and not only during the root
process.
Not knowing that, what did I do? Right After rooting my Samsung Note 5 I disabled the OEM Unlock. When I restarted the smartphone, it got into something called FAP Protection Black Screen where you are not able to leave not even if you try to root the phone again with the img file!
If you get in the FAP Protection Screen, like I did, despair will take over, I promise! And Google will not help you!
Is there a solution?
I found one, but not in any Google Page.
You need to download the firware img file for your phone, exactly same model,
in my case it was SM-N920G (Samsung Note 5), and for your specific country. Luckily for my phone it was not so hard to find, just hard to download (1,7GB with average 15 kB/s speed!). You will find different versions, some related to a Phone Company Operator that your country has, other related to no operator at all (sure I chose that).
After you get the firware file, just use Odin with that file to flash the phone, just like how you did to root the phone, but now, instead of using the root img file with Odin Software, you'll use the firmware file. That will not only solve the problem and give you access to your phone again, but in my case the Operator Flag disappeared and the data and apps installed miraculously were intact! I was pretty sure I was supposed to lose everything, but that didn't happen!
I'm sure what I wrote above will help many desperate people out there!
Now, my main question here:
You can never disable OEM Unlock in your life, with a rooted phone, period! So, it's really dangerous to leave the developer options enabled, allowing anyone that uses the phone to change it, even if by accident. In my case, as another example, besides rooting my phone, I rooted my father's phone too (because it was previously mine). I'd like to avoid by any means that by any chance me, or my father, disable to the OEM Unlock.
So, my question:
If I disable the Developer Option in order to "hide" it, will the changes that I did inside it remain working perfectly? I'm afraid that if I disable the developer options, somehow, it might take every option inside it back to the "default", just like it was before I enabled the developer Options, meaning in this case, OEM Unlock would get DISABLED again!
Is it safe to disable the Developer Options when OEM Unlock is Enable and MUST Remain like that?
Thank you.
Lost a night of sleep for the same problem with a Samsung S8.
This should be added to *every* mod guide.
In my case was worse too...if you root the phone and wipe data, when you open first time developer option you'll find "OEM Unlock" disabled (but I assume it's enabled at bootloader level). So when I check / uncheck it I doom my phone to lock on next restart...
how to get to boot menu on htc u12 plus, smallest width setting got adjusted wrong in developer options and power got cycled, all I can see on lock screen are 1,2 and 3 cant unlock, any ideas?
I got this phone from a friend who also got it from a friend and its FRP locked. I have ODIN and I have not been able to find any firmware for this device. I seen some paid for but it looks risky. Any details on that? I would take it to stores but they will do nothing except a select few that I'm not trying to venture to. Obviously this is newer OS and stuff so I think it may require a bit more than just firmware, I keep hearing about some bootfile that looks different than the .md5 file or whatever it was... any help? Ive been able to get a quick settings app on it and i can get into settings but not developer options, I can't seem to disable google play services to bypass it, no successful root apps, running android marshmallow ?????
Xae.andi said:
I got this phone from a friend who also got it from a friend and its FRP locked. I have ODIN and I have not been able to find any firmware for this device. I seen some paid for but it looks risky. Any details on that? I would take it to stores but they will do nothing except a select few that I'm not trying to venture to. Obviously this is newer OS and stuff so I think it may require a bit more than just firmware, I keep hearing about some bootfile that looks different than the .md5 file or whatever it was... any help? Ive been able to get a quick settings app on it and i can get into settings but not developer options, I can't seem to disable google play services to bypass it, no successful root apps, running android marshmallow
Click to expand...
Click to collapse
Hi bro.
Sorry to hear about the problem. I know the hassles of getting phones from someone else. You're not to clear on your problem. I assume you cant get into settings and therefor you had to download a 3rd party quick settings app. If possible go to settings and then "About". Look for "Software Info". There tap on the build number until you see a notification stating you are now a developer. Go back to main settings screen and developer options should be listed at the bottom. In developer options there should be an option for "OEM Unlock", turn it on and tr flashing again. If this is not possible try searching the settings for "Re-Activation Lock" and turn it off. Insert your password when promted and try again. If all this is not possible or fails then try Samsung Tool Pro. I cant post the link but just google D3X Samsung Tool Pro with loader. This tool is helpful for unlocking and bypassing FRP as well as flashing firmware, recovery's etc.
Feel free to ask for help
I used Nova for a forced launched homescreen and got into the settings that isn't the hard part. The hard part is the OEM Unlock. Been trying that build number a million times hoping something would do different and no sucess. I already have ODIN and Pro Tools but even they don't have the SM-S327VL firmware to fix this. I was thinking about re-partitioning it with odin... I know it's risky but if I brick it I would have to wait for the firmware anyway?. I cant flash a thing without any firmware. So far I haven't been able to find it on the samsung website or any others. I seen some that wanted money for them but I don't trust it. Can anyone confirm any? HhEeLlPp???
Finally disabled all google apps but I can't get rid of Knox
Frp bypass
I unlocked my phone on my own. I used an app called Test DCP and it became a device owner and then I restarted my phone and it was done. Good app????
Xae.andi said:
I unlocked my phone on my own. I used an app called Test DCP and it became a device owner and then I restarted my phone and it was done. Good app
Click to expand...
Click to collapse
great works fine with that app
Sorry about post a new thread about this again, but my situation seems a little weird.
I got an S9+, from Australia Optus (but I'm in China), with the latest firmware, trying to get the missing "oem unlocking" option back but failed.
In download mode, both OEM and frp is off , RMM state: prenormal.
My procedure is:
1. Reset the phone without SIM card.
2. After finishing the whole setup and get into the destop, I plug in the sim card. (but didn't login google or samsung account, because I can't connect to google service. So if I want to get through the setup, I can't plug in the sim card or connect to Wifi.)
3. Then I connect wifi and login in samsung account to restore my backup.
4. Open Developer Options.
5. Wait 7 days. (the uptime is over 168 hrs, even over 300 hrs)
6. the "oem unlocking" is still missing .
Or the phone must online "the whole" 7 days?
Because sometimes the phone will lose the network in subway.
And the swiching between network and wifi won't make a difference, right?
I've already consult the Australia samsung customer-service, can't help me online. And the Samsung Centre in China didn't have the access to fix an S9+ sold in Australia.
Hope somebody can help me to fix this, I want to install a third party ROM.
You have to reset your device while the sim card is in the device , then in the setup you have to log in to your both google and samsung accounts , then wait 7 days , and it should appear , if it doesnt appearing simply use google to check how to fix the missing OEM Unlock option
ilan0098 said:
You have to reset your device while the sim card is in the device , then in the setup you have to log in to your both google and samsung accounts , then wait 7 days , and it should appear , if it doesnt appearing simply use google to check how to fix the missing OEM Unlock option
Click to expand...
Click to collapse
thanks! I'll try in this way.
so to clarify, whats the problem when you just leave the sim in, restore/wipe phone, login to google account, then wait 7 days and check dev options ?
jujubeans said:
so to clarify, whats the problem when you just leave the sim in, restore/wipe phone, login to google account, then wait 7 days and check dev options ?
Click to expand...
Click to collapse
The problem is Nothing Changed. OEM unlocking still missing. RMM state still prenormal. Can't do anything.
greenwhale6 said:
The problem is Nothing Changed. OEM unlocking still missing. RMM state still prenormal. Can't do anything.
Click to expand...
Click to collapse
Did you ever get this fixed? Mine doesn't appear either...
daviddema said:
Did you ever get this fixed? Mine doesn't appear either...
Click to expand...
Click to collapse
Check this out. Haven't try it yet because I have to use my phone all the time. But this method is worth trying. Would you mind to reply if you success Or not?
https://forum.xda-developers.com/sa...ide-root-install-twrp-samsung-t3747535/page38
greenwhale6 said:
Check this out. Haven't try it yet because I have to use my phone all the time. But this method is worth trying. Would you mind to reply if you success Or not?
https://forum.xda-developers.com/sa...ide-root-install-twrp-samsung-t3747535/page38
Click to expand...
Click to collapse
Which method? Can't even get started with installing TWRP if I don't get the OEM unlock option in developer options...
daviddema said:
Which method? Can't even get started with installing TWRP if I don't get the OEM unlock option in developer options...
Click to expand...
Click to collapse
You should flash the original fw (mine is optus) and leave the phone without a sim inside, connected to wifi, on all the time. Plugging the chinese sim might not unlock it.
Samsung A02s(SM-A025F)
I do these steps any body help
1.I unlock oem through developer option
2.I unlock bootloader successfully
3.I downloaded firmware and patch AP with magisk to root
4.I flash Patched AP
5.After getting my phone rooted successfully I want to install TWRP Recovery
6.I downloaded unofficial version of TWRP from xdaforums....
7.I followed the steps guided here
The steps are as follows
1.reboot to boot loader and flash vbmeta_disable.tar
2.Put TWRP tar in AP and flash
3.Reboot to recovery
4.Disable encryption
Go to Advanced >Terminal : type "multidisabler"
5.Go back to wipe>Format Data>type "yes"
6.Reboot system
This is my first experience to root and flash TWRP.... but after that when I reboot my phone got lock .... only official binaries allowed to be installed....and stuck there
I got frightened so I locked my bootloader
But nothing happens...
I downloaded stock firmware and flash.....now my phone works perfectly But I want to root my phone I searched and found a correct way to root but now oem unlock option is not found in developer options....
I watched hundreds of videos on yt and searched a lot on Google but
found no proper solution.....someone tell me to wait 7 days....
In about phone> phone status>uptime
Uptime should be equal to 7days... then oem unlock option will appear but ...... I want another solution date change and WiFi connect is not solution ... If any body knows any other solution please guide me ... I'll be very thankful.....
@ladlabaloch512
Perhaps your device has the same "OEM unlock" block like mine.
On mine I was supposed to wait 7d after turning on dev options.
I bypassed that by
1. switching to airplane mode
2. Setting manually date back one month
3. Restart (still in airplane mode)
4. Turning off airplane mode and let it sync date
and voila OEM unlock option was there.
Perhaps that works on your device as well.
bmwdroid said:
@ladlabaloch512
Perhaps your device has the same "OEM unlock" block like mine.
On mine I was supposed to wait 7d after turning on dev options.
I bypassed that by
1. switching to airplane mode
2. Setting manually date back one month
3. Restart (still in airplane mode)
4. Turning off airplane mode and let it sync date
and voila OEM unlock option was there.
Perhaps that works on your device as well.
Click to expand...
Click to collapse
Thanks for reply...
This bypass method doesn't work in my device
Im too
i have tried everything But I read on somewhere that policy was upgrade to 1000 hours so i waited and hopping thats work!
Now it's almost 700 and i restarted before it on 200 so it's supposed to be 900
Mahmoudm.kamal said:
Im too
i have tried everything But I read on somewhere that policy was upgrade to 1000 hours so i waited and hopping thats work!
Now it's almost 700 and i restarted before it on 200 so it's supposed to be 900
Click to expand...
Click to collapse
Keep us updated.. I'd like to get my OEM unlock to come out of hiding.. this is frustrsting.. i see all these tutorials for the A02s root, twrp and ROMs and whatnot and I'm itching to get flashing!
Is it possible to flash an unlocked carrier firmware in ODIN and then be able to unlock OEM? Without carrier issues or anything? I'm a little nervous to be the first to try.. and not sure where to find US unlocked carrier firmware or if location even matters... I have the SM-A025AZ (US Cricket variant).. I guess as long as Download Mode (fastboot) is still accessible I could just flash the Cricket version back to the device.. bricked my LG-E980 back in the day.. took me a few months how to get it back up and running with LG flash tool.. i just dont want to repeat that fiasco lol... so anybody got any updates on hacking this OEM (un)lock bs??? Or any idea on flashing some other variant to the device without interrupting carrier stuff??.. seems like alot just to get a damn virtual switch to turn on.. but damnit I need root access! Lol.. about to just exchange this phone for an actual rootable phone.. i disagree with charging for hotspot.. that should be illegal.. getting charged twice to use th same bs internet.. eff that.. i just want Rooooooot!!!
Hello,
I have also been having these troubles, with no way to unlock oem after stock flash, and the closest I've got to finding a solution was this, but I simply cannot find samsung's bootloader unlocking form like it says in the guide. I bought my phone just for a bootloader unlockable version (A025M), and now I am very angry at samsung.
also, since over a 1000 hours have gone by since last post, have any one of you solved this issue just by waiting?
Noobiu said:
Hello,
I have also been having these troubles, with no way to unlock oem after stock flash, and the closest I've got to finding a solution was this, but I simply cannot find samsung's bootloader unlocking form like it says in the guide. I bought my phone just for a bootloader unlockable version (A025M), and now I am very angry at samsung.
also, since over a 1000 hours have gone by since last post, have any one of you solved this issue just by waiting?
Click to expand...
Click to collapse
Nope, More than 2000 hours and also changed firmwares and waited again an again and tried alot of ways but enable oem still disappeared
Im also very angry from samsung
Mahmoudm.kamal said:
Nope, More than 2000 hours and also changed firmwares and waited again an again and tried alot of ways but enable oem still disappeared
Im also very angry from samsung
Click to expand...
Click to collapse
its not only samsung that does this, many other companies like motorola does this. Dont be angry, just try a different device. Also, snapdragon US models (i dont think) arent able to be unlocked. If its a mediatek model and isnt sim/carrier locked, u can try MTKClient
Swyen said:
its not only samsung that does this, many other companies like motorola does this. Dont be angry, just try a different device. Also, snapdragon US models (i dont think) arent able to be unlocked. If its a mediatek model and isnt sim/carrier locked, u can try MTKClient
Click to expand...
Click to collapse
Yes dear, i had changed it since more than 7 months with A52S , thanks.
Mahmoudm.kamal said:
Yes dear, i had changed it since more than 7 months with A52S , thanks.
Click to expand...
Click to collapse
And, my A037W doesnt have the OEM Unlock option. Use an MTK tool to unlock it, thats how I did it
ewrecc said:
Is it possible to flash an unlocked carrier firmware in ODIN and then be able to unlock OEM? Without carrier issues or anything? I'm a little nervous to be the first to try.. and not sure where to find US unlocked carrier firmware or if location even matters... I have the SM-A025AZ (US Cricket variant).. I guess as long as Download Mode (fastboot) is still accessible I could just flash the Cricket version back to the device.. bricked my LG-E980 back in the day.. took me a few months how to get it back up and running with LG flash tool.. i just dont want to repeat that fiasco lol... so anybody got any updates on hacking this OEM (un)lock bs??? Or any idea on flashing some other variant to the device without interrupting carrier stuff??.. seems like alot just to get a damn virtual switch to turn on.. but damnit I need root access! Lol.. about to just exchange this phone for an actual rootable phone.. i disagree with charging for hotspot.. that should be illegal.. getting charged twice to use th same bs internet.. eff that.. i just want Rooooooot!!!
Click to expand...
Click to collapse
STOP TRYING TO UNLOCK A US DEVICE ITS NOT POSSIBLE
Swyen said:
And, my A037W doesnt have the OEM Unlock option. Use an MTK tool to unlock it, thats how I did it
Click to expand...
Click to collapse
Which tool did you use?
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
SM-T227U is an American model wich doesn't have the OEM unlocking option, you could unlock using unofficial ways but those are not pretty "stable".
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
Click to expand...
Click to collapse
Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
evan5935 said:
Hey man! Still got your tab 7? I also have a SM-T227U and have oem unlocked! After doing the usual stuff, you will want to turn off automatically update in developer settings. After that, go to settings>General management>Date and time and select manual time and date, and set it for exactly 10 days before the day you attempt this. OEM unlock will appear in dev settings!!!
Then turn off device and while holding power up + power down, plug into PC. It will show the pre-download mode screen where it asks if you want to continue. Just follow the on screen instructions to unlock bootloader!
*note that the bootloader unlocking results in an unavoidable factory reset**
Click to expand...
Click to collapse
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
coocooguy246 said:
Hello! So I am on a journey to attempt to root a Samsung tab a7 lite sm-t227u. So I want to be extremely transparent as to my reason for rooting:
I was given this tablet by my father whom got it from a previous job. When he left the job they never asked for it back, a long with a good bit of supplies he had that he got to keep.
So, I have this tablet, I can get into it as it doesn't have a passcode. I have wiped it by factory reset as well. However, it has IBM's MAAS360 installed and after factory reset AND a firmware flash using odin I still cannot get rid of this maas360 mdm. It is not Knox locked. I can activate developer mode and change all those settings, but I cannot download any apps through the app store at all or enable unknown source app install as those are under an IT block. I also do not have the OEM unlock option in dev options. I've tried the whole changing the date and connecting to wifi, with and without sim card but I cannot get this option to show, nor can I unlock the bootload through fastboot.
I have read that most of the new samsung phones do not have a bootloader unlock option, but from what I can tell that is specific to the snapdragon phones, and this tablet is running a mediatek chip.
Now, if I can remove mdm restrictions without rooting that's great, but I have a feeling that is the only way to properly flash this thing to completely remove the mdm.
I have tried the recovery tar that is posted in this forum but I cannot get it to flash, likely because I still don't have an unlocked bootloader
Have any of you all faced something similar or know of a solution? I may call the company the mdm is managed by and just see if they will remove it from their system, but I find it highly unlikely.
Click to expand...
Click to collapse
If it has Mediatek chipset then you can use SP flash tool to format the tablet firmware and reflash it.
I would strongly recommend you to backup the NV DATA and NVRAM files before you format the tablet.
coocooguy246 said:
Sweet! I will absolutely try this when I get home this afternoon, will report back with results!
But just for clarity. Let's say I start with a freshly wiped tablet. Go through set up and connect to wifi, do I need to add a Google and Samsung account? Then in dev settings, enable USB debugging, also enable wifi debugging? Then change the date. Is there any step I am missing?
Click to expand...
Click to collapse
You can follow this guide actually! ( https://forum.xda-developers.com/t/...220-t225-install-lsposed-magisk-mods.4406933/) it recommends just skipping the setup junk
I have found that many times, rooting methods work across different models of the same device unless there are some sort of major differences in chipsets or some sort of random change lol
The only thing that doesn't seem to work for our model is section V of the guide which is for the removal of the "bootloader is unlocked" screen at startup. so you will still need to press the power button on that screen to boot up. It's a tiny hassle, but otherwise no big deal in my personal opinion
Make sure to read all the way to the end of the root section (section 4) and especially remember step 7. I retried probably 4 times and even patched the entire AP file of the firmware for use in odin (doing this gives a second warning on Knox screen that it isn't samsung official fw then boots normally into the bootlogo screen) before realizing everything was going fine.. I recommend just using the patched Magisk boot.img first just because I find it unsightly
Just flash the boot.tar in the AP slot. Don't download any of the boot imgs from the guide because they are for the t220's and t225's. I'll link the one I made according to the guide below. It'll save you some time and you won't need to install zarchiver and Magick just to have it factory reset again lol. Just download the latest Magisk apk (26.1) from the official github (https://github.com/topjohnwu/Magisk/releases) and install it when you have completed the 2nd factory reset/the patched boot img install.