yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab S7 FE] charter3554:
I'm not sure what type of MDM the device has (if there are multiple types) but I have flashed devices in the past using Odin, but it has been a while. I don't know if there are different types of MDM and if I should check a few things beforehand (in download mode etc) to know how to proceed.

I watched this video:

And it seems sometimes you can just use download mode and ODIN to flash normal firmware without tripping knox?

When I go into recovery mode, I can click the volume button a few times to go to "reboot to bootloader" and then there I can see under a menu that says FastBoot Mode: below a few other things it says DEVICE STATE - locked.
[Samsung Galaxy Tab S7 FE] krbjmpr:
I use an S7 5G FE 64GB for work also. My first 4 iterations all had certificate errors, bad Samsung update in June this summer.

Made a side bet with our IT department that if I could get around the corporate lock, my next tablet would not have galaxy store or 3rd party sideloads disabled. They agreed.

Here is what I did:

Flashed old version of system, Odin choked as expected. Without turning off, connected tab to other pc with Odin, full flash of current version, incl csc and home csc. Tab rebooted, and didn't get message "Your tablet is managed by..." blah blah message.

Showed to my rep, she was astounded and I created a 5hi+ storm. Got my tablet, somewhat opened up as agreed.

Few days later, they reneged on our agreement saying the change didn't stick. Eventually tab connected with Samsung via 5g/lte with Sim card or over wifi. Then was brought back into corporate management.

Long story short, you have a very brief window to accomplish whatever. The moment tab sees a data connection, it tries to reach out and will get locked down again with last corporate settings on record at Samsung. The only workaround I can think of is to 1 block from phoning home while you figure out how to keep tab from checking for updates. Pretty sure this is when lock is reapplied.

Now my tab is locked down HARD, won't connect to any new pc other than 3 in IT dept, and I have a maximum of 12 apps available in play store. Everything else gets "App xxx has been uninstalled by your organization". I was told in explicit terms that I am not to try similar activities beyond my job scope unless I join IT.
[Samsung Galaxy Tab S7 FE] lewmur:
Too late now, but you should have disabled OTA updates while you had the chance. Then updated manually via frija.exe (or whatever site you prefer to get stock ROMs) and flash with Odin.
[Samsung Galaxy Tab S7 FE] krbjmpr:
Perhaps.

But have to realize, first time stock rom boots, it reaches out to samsung via whatever data channel available, and tablet is again locked into corporate management.

I figured this was going to be the case, just didn't know how long it would take.

Now, if there was a way to change identity of tablet, such as serial # or Samsung device ID # (not serial) during that time it us in limbo then would have a shot keeping it self-managed. Would also suspect this would break any connection with Samsung, account, cloud apps, etc. Samsung may also associate tablet via the IMEI, MAC addresses (5g, wifi, bt, etc).

IMEI can be shadowed (for privacy), though not sure how far it extends. I will bring that to IT attention as well to take into consideration. My effort wasn't to remove tablet from corporate inventory, but to show that it could so measures can be put forth to thwart future attempts.

I was just proving the point that despite the hoops IT has jumped through, someone is always able to find a way around. My point was made, pot was stirred, and much excitement was generated.

Now tabs are limited to which computers they can be connected / talk to via usb. Not exactly sure how if using Odin in download, and my inquiry led to 'job descriptions message.
[Samsung Galaxy Tab S7 FE] lewmur:
Well, since that is the purpose of MDM locking, controlling what can and can't be done, that isn't surprising. But I thought you had tech support disable the MDM. In that case, they shouldn't be able to relock it at will. Afterall, there will come a time when the co. should want to replace the tablets with newer models. They wouldn't be able to sell the old tablets if they couldn't disable the MDM.
[Samsung Galaxy Tab S7 FE] krbjmpr:
Sorry if was unclear.

IT department said lock could not be bypassed, I said it could. Reached an agreement that if I could, my actual work tablet would have some additional leeway.

Worked the magic, and showed it could be removed from corporate climate, at least until it phoned home. If ODIN was used as typical, lock is in place as soon as 1st restart is finished. I was able to demonstrate otherwise. It did eventually, after day or so, return once tab connected to internet.
[Redmi Note 9 Questions & Answers] ArDRaFi50302:
After countless attempts and struggles, I finally managed to install Pixel Experience on my phone with the help of some amazing people from here. But now, a new problem has emerged: my baseband and IMEI are showing as unknown, so I can't use the SIM card or connect to Wi-Fi. I don't have any access to my original IMEI numbers. Is there any possible fix, and if possible, without changing my custom ROM?
[Redmi Note 9 Questions & Answers] cytochrom:
Hello @ArDRaFi50302,

sure there is a solution! I have just completed a complete restoration of a Redmi Note 9 and faced exactly the same problem. I have just completed a complete restoration of a Redmi Note 9 and faced exactly the same problem. Unfortunately, I'm still at work and can't write for long.

If you haven't found a solution yet, could I write to you in more detail later?

In short: (unfortunately) back to the stock ROM, IMEI backup, switch to the custom ROM, IMEI restore. Complete.

Edit: Oh sorry, I missed your last sentence. Did you actually make a backup?

First idea In your situation:

TWRP COMPLETE backup of your Elixir system, back to stock, IMEI backup, TWRP restore, IMEI restore
[Redmi Note 9 Questions & Answers] Zestar:
I have the same problem, I did actually make a nvram backup using sp flash tool but I cant restore it. the phone starts charging when I connect the usb and prevents sp flash tool to download the nvram.img file.
[Redmi Note 9 Questions & Answers] Zestar:
for some reason I was unable to enter VCON mode while on custom rom, I had to install stock using Mi Flash then I was able to enter VCON mode to then install nvram.img file using SP Flash tool, but it didn't restored the IMEI, it seems that I also needed to backup nvdata and I didn't.
[General Questions and Answers] Tiribulus:
I have a customer's phone with a totally black and unresponsive screen, but the phone is on. I get the notification sound on my pc when I plug it in and it shows up as an empty drive because it's not signed in.

Smart switch sees it, but complains about no usb transfer mode and the phone beeps telling me it sees smartswitch, but no response to tapping around on the black screen.

Picture a running computer with no monitor attached.

This person has some audio files that they desperately need to recover.

No SD card, no cloud backup, no backup at all of any kind and no way to control the phone in any way that I know of.

If there's no way to do it, just tell me that please and please don't offer solutions that the strangling limitations I've just noted have already ruled out. I've been researching this for an hour.

Any help would be enormously appreciated.

Thanks.

Oh yeah. This is a Samsung A51
[General Questions and Answers] EllieCat:
The LCD must be dead. Yog should replace the LCD screen and it won’t cause harm to the customers phone.
[General Questions and Answers] Tiribulus:
Thanks. He'd have to take it to somebody else for that. It wouldn't be worth what I could charge him.
[Android Stick & Console AMLogic based Computers] LITUATUI:
In this folder you have the latest slimBOXtv firmwares that I patched for the H96 Max W2.

Warning: only tested on 4/64 GB devices, don't use it on other memory variants (different hardware), it can cause it to brick
[Android Stick & Console AMLogic based Computers] kociniyas:
thanks for your excelent work.
[Xiaomi Mix Fold 2] Prydateer:
It looks like Xiaomi is dropping the ball on updates for the Fold 2. Is this confirmed by Xiaomi?

I think it is quite ridiculous for an expensive device like this that has only been out for just over a year that they do not seem to update it.

Is there anything official stated about this from Xiaomi itself?
[Xiaomi Mix Fold 2] Cyrax-001:
Who said so?!

Xiaomi has confirmed 4 years update policy for its flagships. That means the Xiaomi Fold 2 will get Android 14 and 15
[Xiaomi Mix Fold 2] OrionBG:
Xiaomi has not had even a DEV rom for the Fold 2 for more than 2 months now...

The current one is definitely not even near perfect so I'm also guessing they have forgotten about it...
[Xiaomi Mix Fold 2] Cyrax-001:
Wanna bet?
[Xiaomi Mix Fold 2] OrionBG:
The last one available is the V14.0.23.9.18.DEV from September... Unless you have access to something that nobody else has...
[Xiaomi Mix Fold 2] Prydateer:
Exactly why I started this thread
[Xiaomi Mix Fold 2] Reentry310:
Is there policy for updating their Chinese devices different from the Global ones? might be as a result of the device only being sold in China. Although that's just speculation, it wouldn't be the first time Xiaomi has neglected devices.
[Xiaomi Mix Fold 2] Cyrax-001:
what I meant is wanna bet that there won't be a new Update, Android 14 then 15?
[Xiaomi Mix Fold 2] OrionBG:
Oh... That will probably happen sooner or later with Xiaomi, the problem is that once they release a new model the old one is forgotten soon after... No new extras, No new features coming... Just an Update from time to time to be compliant with their "Support Schedule". There are some exceptions to this but Looking at how things have been going with the first Mix Fold and now the second one, I'm guessing the third one will join them too.

Maybe if the fourth Mix Fold goes Global, then we would see some better support but for the time being Those phones are still so niche that there is almost no interest from anybody... Just look at the developers "flooding" this forum... We have a fully Bootloader unlockable, High-spec, Really good foldable device that could run whatever custom OS you think of... And what?... we don't even have a TWRP for it... Just one almost fully working option for a semi-custom MIUI ROM that is being flashed through fastboot...

I dream of the day I'd be able to run a proper PixelExperience A14 ROM on it and not have to deal with MIUI ever again! (and that is from a person that likes pretty and colorful OS UIs)
[Xiaomi Mix Fold 2] Reentry310:
I think its a combination of issues that are causing that. You highlighted the main ones. Also the cost is rather prohibitive for most people. In addition to this, the amount of foldable devices that running a custom rom that is possible isn't great, you can't do it for any of the Vivo, Honor, Oppo or Huawei foldables because you cannot unlock the bootloader. So that leaves us with Xiaomi, OnePlus and Google from what I remember.

I'm considering purchasing a foldable soon, its going to be the Mix Fold 3 or the OnePlus Open, as those are the newest devices where running a custom rom is sort of viable. I've got some experience building custom roms for normal android phones, haven't tried a foldable yet so I might give it a shot once I decide to buy one. As I like the design of the Xiaomi Mix Fold 3 but I'm not a big fan of MIUI.

At the moment I'm leaning heavily towards the Mix Fold 3 because I can actually get that in the country that I live (Australia) through giztop. Ironically, despite the OnePlus Open being global, I cannot get OnePlus to send it to my country yet. Might wait a few weeks to see if that changes though. As I still have a Flip 4 that I want to see if I can trade in and I can't do that with the Xiaomi as far as I know.
[Xiaomi Mix Fold 2] OrionBG:
Yeah, you are quite right about the bootloader issue... I still don't understand why manufacturers purposely make some of their customers' lives miserable... After all, a very big percentage of the current foldable device user base are people like us who like to tinker and modify their devices. We are not at fault that one manufacturer will make an almost perfect hardware but will **** on the software and vice versa...

In your case, the ultimate choice will be size! If you love bigger screens like me, Xiaomi Mix Fold 3 will be the choice. If you like the more compact form factor and the overall flatter design, then the OnePlus Open...

The only issue of the Mix Fold is the Software... At least there is TWRP for it and some early ROM development options (actually one option I think).

By the way, I'd love to be a tester if you can try to build a TWRP for the Mix Fold 2 or maybe even try to get one of the GSI ROMs fully working on it! Will be a good test for your new foldable device, whichever it is... :)
[Xiaomi Mix Fold 2] Cyrax-001:
The new HyperOS with Android 14 update is coming between December 23 and January 24.

I believe that's why it didn't get any marginal update in more than 2 months. They were focusing on the new UI.
[Xiaomi Mix Fold 2] Cyrax-001:
HYPER OS WITH ANDROID 14 BETA RELEASED!!

View attachment 6035670

MIUI | HyperOS Download by xiaomiui

13 May 2020 Updates for all Xiaomi devices will be shared here. Main Channel: @xiaomiui

t.me
[Xiaomi Mix Fold 2] Cyrax-001:
New update is available (Security update)

View attachment 6042640
[Introductions] ItsBouley:
Not much to me in all fairness. I like things that go boom and tech. Built my first PC at seven. Been tinkering for years. Built this website by hand within a week's time or so. Ye. What's good?

...

Does anyone have a proper root method for the Galaxy S21 Ultra 5G from US Cellular? Can't seem to find one that seems reputable anywhere and don't want to brick my only good phone 😂
[Introductions] ZG_DEV:
Welcome to the forums ❤️

If you can unlock your bootloader, I can help you in rooting process:)

-ZG089
[Introductions] ItsBouley:
Funny enough, that's my issue.... The d*** bootloader 😂
[Introductions] ZG_DEV:
Do you find OEM Unlock option in developer options?
[Introductions] ItsBouley:
So I've rooted and installed custom OS' on my s7 and s4... OEM unlock was on those. My s21u on the other hand does have it anywhere. It's also carrier unlocked if that makes a difference. Kinda irritating.
[Introductions] ZG_DEV:
Hmmm. I guess this next method will work with you,

Power off the device, press ONLY both volume buttons and connect to pc, a blue screen with options will appear, one of them should be "unlock bootloader" click on it and that's all.
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
I just wanted to share this since I had not yet seen it posted here on XDA.

Here's the source:

Enable and Use ADB Commands in OnePlus Stock Recovery

I'll post the recovery for my phone (BE2029).

If you guys want to post your recoveries, I can do this little trick, and post the modified recovery in the OP for each different variant. Sadly, only BE2029 has a posted latest OTA to be able to extract the recovery image, otherwise I'd post all of them.

NOTES ABOUT THIS HACK:

It authorizes the device automatically so you can enter the shell as root in recovery mode

The file system structure is a bit weird, ie. /system/app doesn't exist, therefore this isn't exactly a useful recovery, but it's a step in that direction for more tinkering

There is no sideload (sadly)

fastbootd still works

Hopefully this will be a step toward getting another rendition of a modified TWRP recovery with working fastbootd and sideload.

Spoiler content hidden.

Spoiler content hidden.

Spoiler content hidden.
[OnePlus Nord N10 5G Guides, News, & Discussion] ZG_DEV:
Thank you for this great thread, mate:)

Hope it helps someone ;)
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
This is wonderful, @TheArkive !

Yeah, it would be great if we finally get a modified TWRP recovery.

It would open a good deal of flashing as well a whole other load of options for us Nord N10 users.

No more unofficial OrangeFox recoveries or buggy TWRP recoveries for us if we finally manage to get a working modified TWRP recovery.

It would also be great as well if we do figure out how to flash the stock rom back without using MSM download tool. That way, in the case of Linux or Mac users, we can easily flash back to stock WITHOUT the MSM Download Tool.
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
Yes indeed, that's what I'm hoping for. I did see a post about making "TWRP for any device" on DroidWin. I'll see if I can follow that.

I actually have a solution for this. I'm still testing it to find out the limitations, but so far it seems to work. But it is done via fastbootd, not sideload. I plant to post this soon.
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
By the way, I found this from the same website, is this feasible?

How to Create and Port TWRP Recovery to any Android Device

In this tutorial, we will show you detailed steps to create and port TWRP Recovery for any Android Device using Android Image Kitchen tool.

droidwin.com
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
Yes, that is the exact post I was referring to 😉
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
(for the first part of your answer)

Hopefully, we can get a recovery working for this device. Good luck to you for that, @TheArkive .

(for the second part of your answer)

Great! If possible, please post the solution. If any limitations are found, then please also let us know.

Also, is the network (SIM, WIFI, Calling) working from the fastbootd method?
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
I see. 😅
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
Updated OP.

changed the tags for posted recoveries - build rather than model (ie. BE89BA), major OS version, and security patch date

added link to instructions for dumping recovery (only if you have root)

added modified recovery for BE86AA (thanks to andreas__)
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
Also, for TWRP, it seems we need one with screen resolution (1080x2400)?
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
Actually I wasn't sure about that part. Thanks for the suggestion. How did you find out the resolution?
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
From the guide itself.

How to Create and Port TWRP Recovery to any Android Device

In this tutorial, we will show you detailed steps to create and port TWRP Recovery for any Android Device using Android Image Kitchen tool.

droidwin.com

Check step 3 of the guide
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
Ah ok. I just skimmed through it. I didn't start a serious session yet. Nice to know this author is quite thorough :cool:
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
Unfortunately, he only gave up untill 1080x1920. We need to find a TWRP with 1080x2400 resolution.

Also, have you found any issues with the fastbootd method of flashing back to stock rom?

Any issues with telephony, network or anything?
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
Could the stock recovery be provided as well?
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
In my experiments, everything is working quite nicely. I have BE2029 x 2, so I'm able to have a working phone + experimental phone for this model.

My initial attempt was odd, and didn't work well, but once I went back to stock with MSM Tool, every flash after that has been successful, and everything I need has been working (SIM, calling, WIFI, Bluetooth, cell data, etc).

I even managed to succeed with the following experiment:

start fresh from MSM Tool A10.5.10

flash A11.0.0 OTA in fastbootd - it booted just fine

- first i had to delete system, and then create system_a/b and system_ext_a/b in fastbootd (OP android 10 doesn't have system_ext partition)

- flashed everything in alphabetical order

- bootloader lock status was still unlocked (but it didn't look like it in the OS at first)

setup a GSI ROM

- this included deleting product_a/b

upgraded all the partitions with latest OTA (A11.0.15)

- all partitions except system and product

- I didn't even have to format user data

- it booted just fine

I have also been able to downgrade stock with fastbootd, but in this case, I got a boot loop that was only cured by wiping user data (fastboot -w).

Some big caveats:

I haven't been able to do enough tests to claim that you can use this method to get out of a brick or boot loop situation.

Stock system updates will fail once you start on this journey. But you can still take the zip from the hidden .Ota folder, dump the images, and flash manually with fastbootd

I might be forgetting something, but I'll post exhaustive details when I finally get around to posting this script. I've been keeping a log of results so I don't forget stuff.
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
I see.

For the stock system updates, I assume we can use Oxygen Updater and get the incremental update zip.

As for the brick/boot loop situation, what I mean is in case the system reboots to a Qualcomm crash screen (you know the one) and the recovery IS working, then I assume this method may help the people without access to MSM download tools.

Also one more thing, did you try locking the bootloader AFTER you reflashed back to stock?
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
OP updated with original recovery images.

---

I did not try that yet. But I have an on-going experiment setup that I can try that with. Thanks for the idea. I'll add the results to my notes.

As for recovering from Qualcomm crash screen, it depends. I see it can be possible, but it really depends. I have tried this before and it failed to recover from Qualcomm crash screen, and MSM Tool was the only answer.

More testing needs to be done to find out more limitations.
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
@mouseracer Just a note on your last question:

There was a msg in system update that acknowledged bootloader was unlocked prior to the system update fail. That may be the answer.

EDIT:

The problem with incremental updates is the whole "unlocking the bootloader" in order to flash them part. You'll have to erase userdata. Other than that, I assume it should still function. I have not yet tried an incremental update, but the script I wrote is dynamic and will flash the images it finds in the images folder.
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
Alright, @TheArkive .

Well, that sort of sucks but it's a compromise regardless. Anyways, since this phone's reaching the 3 year mark, I am assuming that the security updates are going to stop or something. Either way, we might hit the last security update. So when the updates do stop, GSIs are pretty much the way forward, then.

At this point, it is good if we do manage to get a stable TWRP up and running. It also is bad that, IIRC, the company haven't given a device tree or something like that.

Anyways, when you post the dynamic script you've written, please also add the manual commands as well.

(y)
[OnePlus Nord N10 5G Guides, News, & Discussion] mouseracer:
Also just wondering, what happens if you DON'T flash any recovery but just stick with the same, unmodded recovery? Could you then try to update with system updates then? I heard someone mention on this forum that stock recovery is important for updates.
[OnePlus Nord N10 5G Guides, News, & Discussion] TheArkive:
For fastbootd flashing, if you intend to stick with a stock ROM, then i would suggest sticking with stock recovery.

On GSI, i have noticed no difference at all.

I haven't done extensive testing with stock and modified recovery. I would imagine that modified recovery would, at a minimum, be lost on update, or system update would simply fail.

I have flashed / downgraded my test phone to 11.0.2, and I am attempting a system update to 11.0.15 with bootloader locked now.