Hello guys I'm facing the same problem, i tried lot of things and nothing worked for me until now. Now I'm waiting until the battery fully drained and tried all the methods in YouTube videos.
FIXED: Samsung Note 20 Black Screen OF Death But Phone Workimg Via Dex - Help Needed
- Thread starter kingwicked
- Start date
Its the screen men.
It happened to me, even draining the battery did nothing , the screen came back but only for 10 minutes and after 3 days.
Draining the battery wont do nothing in most cases. You can conect it to dex using a usb c hdmi cable.
If you got warranty take it to samsung center.
If not you will have a 400 dollars bill for screen replacement.
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.
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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.
Wonder what crashed it?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.
A Samsung update? 3rd party app?
Lol, a time bomb?
Meh, another reason to use the N10+...
As per my findings mentioned in previous posts most likely it was the bad firmware of camera module on Android version 10. As soon as i updated to A11 never happened again. Probably an issue with default camera app on Android 10.
Hi guys, it happened to me last year. I tried everything (draining battery etc.) but nothing. Brought in for assistance, they initially tried to say things like "weird, doesn't seem like a widespread problem". After this, I was already expecting a blow of at least 300 euros. I told them to just do a Google search and see that it's a widespread problem. Not only here on XDA but also on the Samsung community there are a lot of complaints. Eventually they examined the phone and fixed it under warranty, probably because they saw that the phone was spotless. A few days ago I had some glitches/artifacts for a few seconds but now everything seems ok. I hope it was a software problem with some app. I have the phone with Samsung Smart Rent (in other countries it's called Upgrade Programme I think) and you can change it after 12 months or give it back after 24 months. It's now suspended because trade-in exists. I sincerely hope to arrive in August without any other issue so I can give it back to them and gtfo lol. And hope Fold4 won't have similiar issues lol.
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!
THANKS AGAIN!
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
I am glad my post is still helping people and you got it fixed . I still am using N986B Note 20 Ultra 5G and still working great
Hi! This is my fifth day with the black screen on note 20 ultra and i feel exhausted from trying all methods on internet. As i understand you were able to fix it via dex. This might be a stupid question but how did you manage to connect your phone to the pc. I installed dex on my pc and connected the pc with my phone via usb. It keeps saying that im not connected. I can't turn on dex on my phone because of the black screen ( the phone is vibrating btw so it's working ). I will be very grateful if you could explain me the process. Thanks!I am glad my post is still helping people and you got it fixed . I still am using N986B Note 20 Ultra 5G and still working great
Ps: This is happening for the second time. The first time my phone turned on by itself after 16 hours.
Hi! This is my fifth day with the black screen on note 20 ultra and i feel exhausted from trying all methods on internet. As i understand you were able to fix it via dex. This might be a stupid question but how did you manage to connect your phone to the pc. I installed dex on my pc and connected the pc with my phone via usb. It keeps saying that im not connected. I can't turn on dex on my phone because of the black screen ( the phone is vibrating btw so it's working ). I will be very grateful if you could explain me the process. Thanks!
Ps: This is happening for the second time. The first time my phone turned on by itself after 16 hours.
well i alreadt had all samsung drivers installed on PC. Dex doesnt work if Samsung Smart Switch is installed on pc. I was able to single out that this issue occurs mostly on Android 10.
So i blindly tried to get my phone in Odin mode and flashed Latest Android 11 firmware on the phone which went ok.
Then i connected the phone to pc when it booted up and it connected via dex. Plus i also had a Dex pad which i bought when i had S9 plus phone.
Then i tried opèning camera app by Tapping on place where camera app again and again. The phone came live and its been more than 2 x years my Note 20 Ultra 5G still works absolutely fine and perfect
Thats how i managed to get it working on 2nd or 3rd day. it used to switch on and also recieved phone calls but screen remained black.
ACCORDING TO ME
IT WAS Bad Camera App bug which
was not allowing screen to turn on.
I possibly have the same problem. My SM-N986B/DS is in stock Samsung (Virgin UK, unlocked}. I had the July security update pushed a few days ago. I couldn't update at the time, so postponed it and forgot about it. The phone self updated the other night and I was met with the 'Enter Pin After Restart' after which the installation 'finished' and I fell back asleep. I was met by the 'Black Screen' when I woke up.Hi! This is my fifth day with the black screen on note 20 ultra and i feel exhausted from trying all methods on internet. As i understand you were able to fix it via dex. This might be a stupid question but how did you manage to connect your phone to the pc. I installed dex on my pc and connected the pc with my phone via usb. It keeps saying that im not connected. I can't turn on dex on my phone because of the black screen ( the phone is vibrating btw so it's working ). I will be very grateful if you could explain me the process. Thanks!
Ps: This is happening for the second time. The first time my phone turned on by itself after 16 hours.
So far I have:
1, Tried to restart/enter recovery, but no success.
2, Drained battery after which the charging symbol became visible. Charged to 100% and restarted. The phone the once again installed the same update; restarted and finished without a problem. I ran without a problem for about 15 min, then black screen again. Like yours the phone is receiving messages and calls (vibrates), but I can't connect to it.
3, Next I am draining the battery again and will try the above again. Will then try to back up, then either factory reset or go back to previous using Freija/Odin (which I haven't used since my Note4!). Unfortunately I can't custom as my company has a security app that won't work then.
@kingwicked; Is my thinking in the right direction?
I'll return with progress report
I possibly have the same problem. My SM-N986B/DS is in stock Samsung (Virgin UK, unlocked}. I had the July security update pushed a few days ago. I couldn't update at the time, so postponed it and forgot about it. The phone self updated the other night and I was met with the 'Enter Pin After Restart' after which the installation 'finished' and I fell back asleep. I was met by the 'Black Screen' when I woke up.
So far I have:
1, Tried to restart/enter recovery, but no success.
2, Drained battery after which the charging symbol became visible. Charged to 100% and restarted. The phone the once again installed the same update; restarted and finished without a problem. I ran without a problem for about 15 min, then black screen again. Like yours the phone is receiving messages and calls (vibrates), but I can't connect to it.
3, Next I am draining the battery again and will try the above again. Will then try to back up, then either factory reset or go back to previous using Freija/Odin (which I haven't used since my Note4!). Unfortunately I can't custom as my company has a security app that won't work then.
@kingwicked; Is my thinking in the right direction?
I'll return with progress report
1. Donot try to go to a previous firmware. backward downgrade maynot be possible
if the bootloader also was updated, it will get stuck. This is how it is on new samsung phones.
2. Remember to Go to Recovery you need your phone comnected via USB amd then press volume up volume down and power
button pressed. Once phone vibrates immediately leave buttons and press volume up and power till the time you see
on pc odin app connected.
If you dont have phone connected via usb when trying to get into recovery. it will never go into recovery mode.
Thanks, I'll keep trying. It showed battery 86% so it might be a while until it's discharged.
@kingwicked Thanks again for your help. Unfortunately none of the above has worked. I'll start a separate thread.
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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)2I 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!2After around 24 hours ...
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 repair2
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.
