Develop Bugs

Flashing failed, white screen. Can't go back to kit kat

so I tried to flash Leaner Lollipop that gibz (i think) provided and got white screen after flashing. I turned off my phone somehow, downloaded stock firmware (4.4.4) and tried to flash that but didnt work. When I press download and plug in the phone, I would get error 2004, and phone would just start charging and boot up. please someone help me quickly. Phone is 820us dual sim

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up there is what the screen looks like, and down is screenshot i took, connected phone to pc and downloaded.

White vertical line on display everywhere !!!!

pleaseee helpp me ! I flashed ARISE Sound Systems Deuteronomy 2.4.zip on my nexus 5x and now my display has a white vertical line and it's everywhere and not going !!!!! i even flashed the factory image and it's still everywhere ! in bootloader recovery OS , ... ! my disaply quality has also decreased ! what has happend!!! please help me!!!
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Same problem
Hi anything new i got the same problem, but in my case line os on the very right od the screen?

Mi MIX 2 bootloop and can't flash TWRP

Hello everybody,
I've been lurking around here for quite some time now and just registered because I am not getting my phone running anymore.
I used the MIUI rom and wanted to put it back to factory settings.
Unfortunately it's stuck in a bootloop now, it keeps restarting after chosing the language and the country (China only option).
Whenever i want to flash TWRP or OrangeFox, I get the erros from the picture below.
It somehow crashes and I need to close the Powershell Window.
I tried several different USB Ports and USB cables.
Thank you!
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First time trouble rooting an android device.

Hello xda
I'm trying to root my Samsung Galaxy S8+ SM-G955U. I've never rooted a phone before and I seem to be running into trouble. I have download the correct version of Odin and what I believe to be the correct software, although I am a bit fuzzy on how to transfer everything over to my phone. I have developer options and USB debugging turned on. However OEM is not in my developer options and every time I try and connect my phone to my computer I get and error message. Ill attach a few screen shots for reference. I have the latest USB drivers. Can I fix this? Can I still root my S8+?
Thank You
Left Nut
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Can anyone help me pls? Stuck on bootloader, No OS

I forgot already everything about flashing and haven't used this device for 2 years, but wanted to revive this one now. My phone is stuck on logo but it has still the twrp recovery but it says there No OS and device was not root. Can anyone help me give steps on what to do? As far as I remember, I had hard time reviving this one before but had given up so it was not used for 2 years. My device is a korean variant. Pleaseeee! See attached picture for few details that I can and only know to provide.
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Photo is not loading
Here is a gdrive link for the pic sorry.
https://drive.google.com/file/d/1KMY3NYjJHpvk1T65NOcazmxV9A5qFc8f/view?usp=sharing

Inactive forum?