FIXED: Samsung Note 20 Black Screen OF Death But Phone Workimg Via Dex - Help Needed

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i am having a terrible issue on my Note 20 ultra. I was on Android 10 Ketan Rom Android 10 Q06 . All was well.

Today i put phone on charge at around 10 percent and when i came after around 20 mins to check on phone. The phone screen is black and nothing showing up. i tried connecting to pc it connected but screen was black and also it went black

now phone connects with tv in mirror mode or dex mode via dex pad. touch works completely on phone via dex. but display has turned off and black

the charger being used was Electjet 45w bought from amazon and phone N986 B Note 20 ultra 5.g.

help needed please
 
Have you tried a hard reset?
Hold down the power button for like 30 seconds it should reboot


the phone reboots that way u mentioned i can connect to tv via dex mode and i can see touch working and phone working but display black

it reboots after every 10 mins i am on ketan custom rom q06 android 10
i can get phone into odin mode and try flashing stock Android 11 which i have on pc

BUT im afraid my phone might die or switch off while flashing stock rom.i asked a repair guy he says problem can be with motherboard .

im not sure to try flashing it
 
After around 24 hours ...😇:eek::eek:

of soft reseting , stock firmware 11 install . and slapping and tapping and massaging, connecting to tv via hdmi in mirror and dex mode. my phone was in black screen of death.

everything was working. but no display. i can say that becauee in dex mode i used phome dsplay touchscreen and even spen was Workiing but no display.

last thing i was doing when display came back to life after tapping slapping soft reboots i was opening camera app and closimg and opening it multiple times. and i saw at same time display gettimg back.

when i saw a video on youtube telling to do above steps. i thought man he is joking. but literally something out of above worked

So i pray 🙏 you dont get this dreadful encounter. it just saved me $400 of screen replacment which i had made up my mind on. and i coildnt go today because it was Sunday.

if this happens to you do try this before a repair
 
Last edited:

.LEONARDO.

Senior Member
Aug 24, 2011
72
4
Manaus
After around 24 hours ...😇:eek::eek:

of soft reseting , stock firmware 11 install . and slapping and tapping and massaging, connecting to tv via hdmi in mirror and dex mode. my phone was in black screen of death.

everything was working. but no display. i can say that becauee in dex mode i used phome dsplay touchscreen and even spen was Workiing but no display.

last thing i was doing when display came back to life after tapping slapping soft reboots i was opening camera app and closimg and opening it multiple times. and i saw at same time display gettimg back.

when i saw a video on youtube telling to do above steps. i thought man he is joking. but literally something out of above worked

So i pray 🙏 you dont get this dreadful encounter. it just saved me $400 of screen replacment which i had made up my mind on. and i coildnt go today because it was Sunday.

if this happens to you do try this before a repair

I have exactly the same issue. I was typing on whatsapp when suddenly screen get black. Notifications were ok, voice commands too. Touchscreen ok, I could use it normally when using my TV as screen with HDMI cable or with my notebook, when connected to windows or even Dex.

I already flashed fresh stock Android R rom and my display is still dead.

Tried to tap, slap, shake (I can her some noise next to camera module when shaking). I'm draining battery now with some apps that also vibrate phone. Display is still dead.

I live in Manaus/Brazil and repair centers are not working until March 23 because of Sars-CoV2. And my knox is tripped. It would cost a lot If I have to replace display or even the phone, since they probably will say it's no longer covered by warranty.

Were tou opening and closing the camera while mirroring screen? or on blind?

It seems in your case, the display went back to normal as strange as it turned off.

Could you please share the mentioned youtube video?

Hope I have that lucky as well.
 
I have exactly the same issue. I was typing on whatsapp when suddenly screen get black. Notifications were ok, voice commands too. Touchscreen ok, I could use it normally when using my TV as screen with HDMI cable or with my notebook, when connected to windows or even Dex.

I already flashed fresh stock Android R rom and my display is still dead.

Tried to tap, slap, shake (I can her some noise next to camera module when shaking). I'm draining battery now with some apps that also vibrate phone. Display is still dead.

I live in Manaus/Brazil and repair centers are not working until March 23 because of Sars-CoV2. And my knox is tripped. It would cost a lot If I have to replace display or even the phone, since they probably will say it's no longer covered by warranty.

Were tou opening and closing the camera while mirroring screen? or on blind?

It seems in your case, the display went back to normal as strange as it turned off.

Could you please share the mentioned youtube video?

Hope I have that lucky as well.

Sorry for the late reply mate. The Scenario when display got back alive was.

1. My phone was connected via HDMI to TV in Mirror mode (Not Dex Mode). I also had mouse and a keypad connected since i am using Samsung Dex pad which came with my old note 9

I have from day 1have doubts about the stock camera app on my Note 20 Ultra. The app misbehaved from ranging to camera fail, and force closes on Android 10. That why i did below next

2. I forced close camera app , cleared its data and then while watching on Tv
i placed my finger on Camera icon and repeated opened it and closed it with back key.
since the display on phone was off so i used Tv for help
BUT physically doing the action on phone with fingers not with mouse on screen via mirroring

3. while i was repeatedly opening and closing app by touching the display with finger suddenly i saw camera app asking me for location tags pop up on display and from that time onward there has been no issue and the display is working as nothing wrong happened.

I wish and hope you have resolved issue by now. Please do share your experience for others . since when i had this issue, i found very less information about it. but i saw around 15 to 20 users having such issues especially with Note 20.


Conclusion what i have understood is either its some issue with Note 20 Ultras Camera Firmware or THe Electjet 45W Charger the culprit which i bought for my Tab S7 and was using to also charge my Note 20 Ultra. I have stopped using this charger for my phone and tab and since that day only using 25W OEM charger which came with the phone. I have now this 45w Electjet charger connected via Samsung dexpad which caps its charging speed to 15W.

Here is the link of the video. and i tried all things mentioned and then after exact 24 hours
the display came alive back when doing activities i mentioned above. and i have no link with the guy or channel who posted this video. I was just trying everything to bring life to my dead display .


PS: i had only 5 percent belief in this video . i dont know what worked
i had prepared my mind for the300$ plus panel display replacement.
i just read two recent more comments which state they got their phone working back.
Do read the comments posted as there might be some more clarity of things to try.

(Please Apply reasonable pressure on screen when trying these actions as you might break the Display)
 
Last edited:

N4Solomon

Senior Member
Feb 10, 2013
325
89
I'm here literally in tears, my keyboard wet typing this because the video actual "Fixed" my phone. I don't know if its a long term fix or just temporary but after 24hrs of a black screen its good to have back a working $1400 phone.

So if this happened to you, dont be skeptical and just try the steps. Last resort is to bring it to a technician or Samsung but definitely try this before.
 
  • Like
Reactions: kingwicked
I'm here literally in tears, my keyboard wet typing this because the video actual "Fixed" my phone. I don't know if its a long term fix or just temporary but after 24hrs of a black screen its good to have back a working $1400 phone.

So if this happened to you, dont be skeptical and just try the steps. Last resort is to bring it to a technician or Samsung but definitely try this before.
Well Congrats :)
its been one month and my phone is going strong . no issues
 

Gooseboi1989

Member
Jun 3, 2021
5
1
Mine went dark about 2 days ago. Been trying the above solution with no success.
But can I ask did you guys hear a slight rattle?
 

alixra

Senior Member
Jan 5, 2016
295
56

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  • 2
    I registered here just to say "Thank you" OP. The option with clicking the camera app instantly fixed the BSoD for me. The same scenario done as in video (even with the fridge). All the steps with dex and "link to windows" done also, nothing helped. But then I found your advice about tapping and closing the camera app via dex. That worked the same moment I opened the camera for the second time. This must be in the official HOWTO list in the manual :) THANKS AGAIN!
  • 3
    I have exactly the same issue. I was typing on whatsapp when suddenly screen get black. Notifications were ok, voice commands too. Touchscreen ok, I could use it normally when using my TV as screen with HDMI cable or with my notebook, when connected to windows or even Dex.

    I already flashed fresh stock Android R rom and my display is still dead.

    Tried to tap, slap, shake (I can her some noise next to camera module when shaking). I'm draining battery now with some apps that also vibrate phone. Display is still dead.

    I live in Manaus/Brazil and repair centers are not working until March 23 because of Sars-CoV2. And my knox is tripped. It would cost a lot If I have to replace display or even the phone, since they probably will say it's no longer covered by warranty.

    Were tou opening and closing the camera while mirroring screen? or on blind?

    It seems in your case, the display went back to normal as strange as it turned off.

    Could you please share the mentioned youtube video?

    Hope I have that lucky as well.

    Sorry for the late reply mate. The Scenario when display got back alive was.

    1. My phone was connected via HDMI to TV in Mirror mode (Not Dex Mode). I also had mouse and a keypad connected since i am using Samsung Dex pad which came with my old note 9

    I have from day 1have doubts about the stock camera app on my Note 20 Ultra. The app misbehaved from ranging to camera fail, and force closes on Android 10. That why i did below next

    2. I forced close camera app , cleared its data and then while watching on Tv
    i placed my finger on Camera icon and repeated opened it and closed it with back key.
    since the display on phone was off so i used Tv for help
    BUT physically doing the action on phone with fingers not with mouse on screen via mirroring

    3. while i was repeatedly opening and closing app by touching the display with finger suddenly i saw camera app asking me for location tags pop up on display and from that time onward there has been no issue and the display is working as nothing wrong happened.

    I wish and hope you have resolved issue by now. Please do share your experience for others . since when i had this issue, i found very less information about it. but i saw around 15 to 20 users having such issues especially with Note 20.


    Conclusion what i have understood is either its some issue with Note 20 Ultras Camera Firmware or THe Electjet 45W Charger the culprit which i bought for my Tab S7 and was using to also charge my Note 20 Ultra. I have stopped using this charger for my phone and tab and since that day only using 25W OEM charger which came with the phone. I have now this 45w Electjet charger connected via Samsung dexpad which caps its charging speed to 15W.

    Here is the link of the video. and i tried all things mentioned and then after exact 24 hours
    the display came alive back when doing activities i mentioned above. and i have no link with the guy or channel who posted this video. I was just trying everything to bring life to my dead display .


    PS: i had only 5 percent belief in this video . i dont know what worked
    i had prepared my mind for the300$ plus panel display replacement.
    i just read two recent more comments which state they got their phone working back.
    Do read the comments posted as there might be some more clarity of things to try.

    (Please Apply reasonable pressure on screen when trying these actions as you might break the Display)
    3
    Worked! Slapping it around and massaging it with reboot. Who knew Smack My ***** up! - The Prodigy was referring to modern phone fix'n.
    2
    I registered here just to say "Thank you" OP. The option with clicking the camera app instantly fixed the BSoD for me. The same scenario done as in video (even with the fridge). All the steps with dex and "link to windows" done also, nothing helped. But then I found your advice about tapping and closing the camera app via dex. That worked the same moment I opened the camera for the second time. This must be in the official HOWTO list in the manual :) THANKS AGAIN!
    2
    After around 24 hours ...😇:eek::eek:

    of soft reseting , stock firmware 11 install . and slapping and tapping and massaging, connecting to tv via hdmi in mirror and dex mode. my phone was in black screen of death.

    everything was working. but no display. i can say that becauee in dex mode i used phome dsplay touchscreen and even spen was Workiing but no display.

    last thing i was doing when display came back to life after tapping slapping soft reboots i was opening camera app and closimg and opening it multiple times. and i saw at same time display gettimg back.

    when i saw a video on youtube telling to do above steps. i thought man he is joking. but literally something out of above worked

    So i pray 🙏 you dont get this dreadful encounter. it just saved me $400 of screen replacment which i had made up my mind on. and i coildnt go today because it was Sunday.

    if this happens to you do try this before a repair
    2
    I updated the phone as you suggested @kingwicked . At first nothing changed - screen did not light up. But then a couple of days later it started working and has worked well over the last 6 months.

    So if someone is stuck in this situation in Android 10, UPDATE YOUR PHONE ASAP.
    Congrats , thats what happen on Android 10 with me, since my phone started working its been 2 years almost not even a single time it has happened again Thank God. 😀