BOOTLOOP after update to OneUI 4.0 - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

Hello i bought a galaxy s20 and was with oneui 3.1 and didnt update from the software. I tried with odin patched with oneui 4.1. It passed successfully but it was stuck on bootloop. I tried different firmwares with different codes but it was the same one. I cant go to recovery becqause it doesnt allow me. The only solution was going back to oneui 3.1. Is there anyone who can help me please

Yeah use a pair of headphones to enter recovery mode after said update I hope this helps

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Stuck at samsung logo, no firmware will take.

Hey guys, I'm in deep!!! I returned my Note 2 back to stock and made the mistake of doing the AT&T OTA update. When I tried to install a recovery I got the Samsung logo and it's been there ever sense. I've tried to flash, via Odin (multiple versions) the I317UCAMA4 and the I317UCALJ2 firmwares and I still get the samsung logo. When the flash is finished I take the battery out and try to get into recovery mode but it always gets stuck at the Samsung logo. I don't know what else to do. I hope this doesn't mean that the phone is useless; I've bricked and unbricked the phone on multiple occasions. But this time its different. Any help would be appreciated.
Never mind. I found the solution here:
http://forum.xda-developers.com/galaxy-note-2-att/help/stuck-boot-odin-flash-to-stock-t2949408

SoftBrick with root - Help!

Please, somebody help me... I have a SM-T705m which I have rooted with android kit kat. After some months I got updated to the Lollipop and it was running ok, but it wasn't updating via OTA anymore.
Well, it happens that today I reset the tablet to the factory mode to sell it, but it was without unrooting, and then it got stuck on the screen saying "just a sec". I went further and tried to download some versions of the firmware and install it on the Odin3 without knowing exactly the number of the version Cause I couldn't turn on the gadget to look. I just got any firmware with the name of my model and my location (Brazil) on the site Sammobile.com....
But bang.... Now I can't turn it on because it is looping on the logo screen.... I tried to download the lollipop firmware and the kit kat..... Could somebody help me? it is looping and I need to sell it tomorrow. I would really appreciate it.
Boot to recovery POWER + VOL UP then factory reset.
Reflash the stock LL firmware.

Soft bricked s9 plus

Hi all,
i was wondering if anyone can help me. My s9 plus is stuck in download mode.
Background
I installed the Android pie and then tried to manually reflash UK BTU BRJ6 to downgrade back to 8.
if i try to use smart swithch it says device not recognised
Does anyone have any advice on how i can return my phone to working order thank you
p.s screenshot attached
https:// imgur. com/a/3uwEBEY
WOW i do not know what happended there but I changed my port and for some reason it flashed ok, i must have tried it about 10 to 15 times and it failed each time BIZARRE

Samsung a7 2018 sm-750fn Stuck and several problem

Hello dear, i have a problem with a Samsung a7 2018 from my friend..so i explane the problem..the phone doesnt work with any sim card..my friend give a mobile to a Person that i do know WTF do block the phone and appears a Red write on boot where Say that smartphone Will not work without originale firmare..so i try to repair with Odin..i flash thousan of Rom Italian on the beginning all still working but not the Sim..It recognize inside but i can select the network so i can only make emergency call..i try to flash with different rom with custom rom with twrp but nothing Always the same problem..i try different rom all firmware flash correct with Odin but now i face a new problem..when i flash with all firmware i use It flash correctly i can go in download mode rescue mode but i cant procede with smartphone configuration..Is still Always lock on Samsung logo..and stay like this for ever..any help for fix It please? The latest rom installed Is android 10 firmware itv..model Is sm-750fn..if i go to download mode It happears avoid waranty 1 and carrier_id omn..now i cant install in any Way twrp again..Always file and Say that only original bootloader Will work

Can i install LineageOS 18 (Android 11) on my S20+ that has been upgraded to official OneUI 4 (Android 12)

Hi,
as the title states, I am looking at installing LOS 18 on my S20+ (I know LOS 19 is out, but i need the older version).
My phone currently is fully stock (boot loader locked) and on OneUI 4 (Android 12).
A quick search on the forums seems to indicate it's not possible to downgrade to an official Android 11 ROM on the phone even using ODIN.
the device as an exynos device.
i managed to get it to work by installing the Android 11 stock rom using odin.
the first attempt it got stuck on boot loop, then I attempted using the HOME_CSC file, it got stuck at prism.img
on restarting it gave an error on failed update.
even then plugging in the USB, OdIN was able to detect it and trying installing it again worked.+

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