[Q] How do I unroot the tablet and bring it back to the original state - Galaxy Note 10.1 (2014 Edition) Q&A, Help & Troubl

My girlfriend has this tablet and I rooted it for her because she saw me getting free in app purchases with freedom and wanted xmod for clash of clans. It was easy because I had a note 3 at the time and I pretty much knew everything about rooting.
But I jumped ship to ios a few months ago and I forgot some of the stuff. I'm still experienced with odin but I can't remember how to unroot the device and lock the bootloader (was it even locked? I really forgot).
So anyway we eventually broke up and I wanted to unroot the tablet in case she ever needs the warranty.
Is it enough to just flash an original firmware with odin and everything will be back to the original state? Do I need to do something else?
I'm currently on this custom ROM with the following baseband, radio, whatever (it's in my native language but the version numbers are there):
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

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HTC M9 stuck on TWRP (cannot install or do anything else)

Well, I should start with that this is my gf's phone and I've installed LinageOS quite a while ago. She's saying that she was installing a weekly update when the phone crashed and after that it started to stay on the boot window for hours. When I tried to manually update the phone via TWRP it showed this:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Tried some Youtube guides, as changing from EXT 4 to EXT 2 and back again, repairing the file system, but it just says the same thing all the time. Any ideas how to fix that? Thanks in advance!
I'm not very experienced in that (only installed a few ROMs to a few different phones), so it would be great to get some step-by-step guide, so I don't mess something up <3
Flash back to stock and start over. If the ruu can't fix it then nothing will.

Revert to stock: how?

Hey guys,
I want to sell my old backup phone Galaxy A320FL. In the distant past I once installed LineageOS 16, but now I'd like to revert completely to the original stock ROM.
So my question is:
Can one of you provide me with the steps needed to take to make this happen?
And preferably a link to the (Dutch / PHN) stock rom files wich doesn't limit speed to 100b/s
Also, when I boot the phone it always says KERNEL IS NOT SEANDROID ENFORCING and sometimes it gets stuck in boot. And when i go into download mode i get this:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
It says WARRANTY VOID
Is that going to be a problem?
And I don't know if this matters, but I'm using Ubuntu.
So i have to use adb or something?
These are a lot of questions, but I hope you can help me a bit on this.
Roel20

YT9216c rooting help? !Reward!

hey everybody i recently got my hands on an android head unit from amazon
i have atatched some pictures of the devises "specs"
im really looking for help to root the head unit.
i have seen plenty of forums taking me to a russian forum where i think i found out i can root without flashing however all of there links are not good for the downloads
i would like to root the device without flashing if possible however if i have too i will.
i have seen lots of other people posting firmwares that are pre rooted , however they all seem to have different software from mine for example mine is yt9216c_AHD_00005_V004_20200804 but the firmwares i have found are yt9218 etc.. are these safe to flash i take it this means they will have a different version of android or does it mean something else?
if anyone can help me root this device i will happily pay a reward!
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
//ibb.co/8N8ZxS2
//ibb.co/Jvmz8bZ
(you may need to click the link for the images but it has details here

I offer my phone as tribute to port twrp

I am currently in possession of a carrier unlocked Razr 5G with an unlocked bootloader, that I have rooted via a Magisk patched boot image. I don't know the first step in porting TWRP to this phone. However, if someone will work with me, I will gladly offer my phone to do so.
I have a friend working on it.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I'll release in a bit, just working on touch
Noice... should take a look to see if GSI is portable to this thing, I'm looking forward to this be my next upgrade (Maybe an incentive to keep my next job and keep on with the plan payments, lol), so I want a phone that can run real programs and have my handy DriveDroid install ISO's into work servers and stuff... Still running on a rooted Honor 5X running android 9 since it's capable of doing that stuff and still cuts it for my needs running OmniROM

phone setup loop

after a few months forgotten in a drawer, I picked the phone Today to see if I could sell it, but after a factory reset, this happened:
Your browser is not able to display this video.
I have tried removing it from my google account and redo the factory reset, but nothing changed.
As far as I am aware, the phone was never rooted, but OTAs did not work saying it was rooted and I had to flash updates via fastboot, this is the bootloader screen:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Any other suggestion of anything else I could try, please?
Thank you.
Same exact problem
got in touch with official support, was asked to send the phone to hong kong.... let's see how this play out
got a solution by unbricking it, Im trying this out, im ready anyways to lose the warranty

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