Need help download mode not work - Samsung Galaxy A20 Questions & Answers

When I go into download mode it restarts by itself I don't know what to do, it enters the system and recovers normally
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Help!! Can't boot into phone

Ok it happened to me again, but now the emergency mode does not work and when I try to go to emergency mode I get stuck on a s/w upgrade screen and if I leave it to just normal boot it goes into fastboot mode started screen and doesn't move.. Someone please help!!
I still have not been able to fix this..

[Q] Bricked Phone. No recovery or download mode.

I've been trying to reset my phone and keep running into different problems. When i try to boot up my phone the screen says
[470] Fastboot mode started
[520] udc_start()
When i try to go into recovery mode it just goes back to the same screen. When i try to go into download mode it quickly goes into download mode but then goes to the same screen with the same errors. Please help thanks !
T mobile version of G2 (d801)

Phone stuck in the download mode

Hey guys
My S5 g900f has been updated to marshmallow recently, and now whenever i try to get in the download mode the phone get stuck on the "Downloading... do not turn off target!!" untill i start it normally !
Any help ?
Thank you
that's what it really show when you go in download mode. i don't see wrong with that.
That's the function of the download mode. Everything is fine with your phone

SM-G935F Stuck at download mode after a sudden freeze

Hi everybody,
My Samsung galaxy S7 edge (G935F, Android Oreo) is now stuck at "Downloading do not turn off target" screen. The problem started after i uninstalled some apps and PUBG due to low space notification. After that the system frozed and stopped to respond, so i forced it to restart ( Volume down + Power button) and since then the phone reboots without showing the usual carrier and the samsung logos animations. It shows a "scrambled/damaged" image of the download mode which become normal after some seconds and stuck at this stage.
The detailed events time-line of the booting process is bellow:
1- the phone takes about 30 minutes to boot to the download mode
2- The carrier + Samsung animations logos were gone and not showing as before
3- some seconds before the download mode screen shows, a sort of a damaged download mode shows up and become normal after that
4- The download mode screen contains not text (usual firmware informations etc.. were not showing anymore)
5- The phone is stuck at this stage and there is no possibility to boot to safe mode or recovery mode or any other mode
*The phone is unrooted
*I tried to reflash the firmware with Odin (3.14) but it stucks on getting PIT stuff and fails with "There no PIT partition."
*i tried SmartSwitch and Kies but they failed too (i have no recovery code).
*Samsung usb drivers are installed
The screenshots of the phone and odin are attached bellow.

Problem with LG K8 model: LG-K350N (download mode not working)

Hello, I have a problem with my old phone. The phone does not turn on to the system or download mode. After connecting to the charger, it charges normally and then restarts either to the words "Your device is corrupt. It can't be trusted and may not work properly." or to a security error. When I try to turn it into download mode, the LG logo is displayed with in left down corner text downlaod mode, then the message Your device is corrupt…. and it restarts.
When I enter the phone recovery, after clicking the buttons, the same message appears (Your device is corrupt and so on).
Thank you in advance for your help because this is the first time I meet it + there is nothing about my problem with the download mode.

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