Black Screen or Screen Won't Turn On? 7 Fixes - Galaxy S21 Ultra 

It was so much easier when Samsung allowed us to simply remove the battery then put it back in.

Power and volume button method worked after tapping each of the buttons first. I had to hold it down for about a minute. After about 15 seconds it vibrated but the screen was still black. 45 seconds later the screen came on. Thanks!

Thank you for all your tips . What worked for me was putting the phone in the freezer for 20 mins in a zip lock bag and tissues then giving it a good smack without breaking it and connected it to the charger that I usually charge my phone with. Then I held down both of the volume buttons plus the power button for approximately 30-40 seconds . I held it down even after a little charging symbol came on all the way until the big green charging symbol came on.

Tried everything of Note 20 video on Saturday evening.... left it for a day. This morning found this Note 21 video.... after 2nd step of the quick button push, when I plugged it in, it showed the charging % screen. Thank you so much for this video. Saved me from booking the phone in for many weeks through service provider.

Unbelievable! It worked! I tried all the steps in the sequence up to the smacking part and it turn on! After the smacking, I hold down the power and volume down buttons for at least 15 seconds (maybe more) and voila! The key is to be patient and to follow the steps holding back the feeling that you are rather harming your phone. It is counterintuitive to smack or press hard against your phone (I treat my phone very carefully otherwise). I payed attention to the sounds you produced by the tapping, smashing in order to avoid overdoing it and harming the phone. At first I thought you were kidding but after I read the comments I decided to give it a try and that is the same reason I wrote this: to encourage others to try carefully and patiently... It may work for you too!

" I am not responsible for anything that happends to your phone" Me: yep looks like that massage method is out of the question

This helped, never had an issue before and left my phone to charge and it wasn't responding at all even after sitting on the charger. Thank you!

WORKS! AFTER 5 TRIES. I PUT IT IN THE FREEZER FOR 15 MINS AND IT OPENED. THANK YOU SO MUCH!!!!!! VERY HELPFUL

I can't believe Samsung would screw over their customers with this overpriced phone just to have customers deal with this inconvenient issue down the road. It's like bait and switch scam. With this issue the overpriced S21 Ultra phone is not anywhere on Apple's level at all. Even my S10 was used for long periods and still functioning great to this day. S21 Ultra is a failed product.

I started jamming the power button and the phone emergency alarm went off and called 911. I apparently hung up on them and the cops showed up at my door 10 minutes later. Good times!

I had the same problem. I have read a lot in many (comments in) clips. These steps (pushing with thumbs, tapping, freeze method etc.) did not help me with my LCD screen issue. Or make screenshots with the OTG (on the go) cable connected to a monitor which is also helpful. For me the OTG didn’t helped. I bought a HUB in witch you can put a monitor (hdmi), mouse (usb-a), keyboard (use a usb-a to sub-c converter for the keyboard port). This did also not helped in the beginning, which is very frustrating and I already had an appointment at a repair shop. Luckily after a few hours trying to make connection with the HUB, somehow the software Dex made a connection with the HUB through the monitor. So when the HUB is connected with all the cables in it, you can press the mobile power button one time and/or backspace onetime or mouse to see something on your monitor, but normally this shouldn’t be necessary. But take note that it may take time for the software to recognize the HUB/monitor and for yourself to find the knowhows of how to make connection with your devices. Also my S21 ultra was in flight mode. If this wasn’t the case you have the possibility to go to Samsung fine my phone website and unlock your phone. So when I had connection with my HUB on the monitor I stopped the flight mode, I went to setup > accounts and back-up and made a backup of my files in the Samsung Cloud and for my pictures/movies in the Google photo app (I bought 200 GB in the Google cloud). You also have the possibility to connect an external hard drive in the HUB so then you don’t have to buy GB. Also I put the USB debugging on in the developers mode.

I did this 3 times. I completed the 6th step during time 4, and it came back on!! I was literally thinking, "oh no way this is going to work, I'm giving up." But it turned on just then, I was shocked 😲😯! Thank you!

Dude… you rock. My daughter dropped her S21 FE 5G and screen went black. We could tell the phone still worked because in her car the Bluetooth connected and we could make calls. I called warranty people to get it fixed and their only solution was replace with refurbished, though her phone only 8 months old. So I decided to checkout RU-vid and found your video. Phone was revived (YAY) with your CPR techniques (that’s what it felt like). Anyway we did the steps up to just before the freezer. I did the massage again only this time I pressed with two thumbs right in the center of the screen, careful not to push too hard, just gentle pressure. Suddenly it turned on! Thank you Dude, you rock and I’m subscribed now.

IT WORKED! Repeated the recommended cycle at least 7 - 8 times, including once in freezer. Screen magically came back on and performed normally. CRAZY

Thank you! I did all steps. i put at freezer for 15mins for 2 times. Then charged and reboot. it works. !!!

Having my warranty expire 3 months ago, I felt he desperation for solutions to fix my phone. I followed these steps and my heart sank every time I finished a cycle. Nevertheless I persisted. Even though these steps are really incredulous at face value, it worked after the 5th try. Amazing! Thank you!

it freaking worked! the freezer step is what finally did it for me. dude, you are awesome for making this video!

samsung just got an L, I have always supported and defended them against apple, now I'm rethinking.

My S21 Ultra had water damage; the screen went black, but I could still feel it vibrate. I tried the old rice trick overnight, but no luck. Desperate, I found this video and decided to give it a shot. I followed all the steps, even left it in the freezer for over 20 minutes, but still, nothing. Then I remembered my phone had Android Auto enabled. I went to my car, plugged in my phone, and typed my password blindly. To my surprise, my phone worked on the car screen, showing 40% battery. Feeling hopeful, I started slapping and massaging the phone, and suddenly, it came to life! I was shocked and thrilled. I charged it to 100%, and it's been working fine for the past hour. I'm so glad I found this video. I never comment, but I had to share my story. Don't lose hope-keep trying this method a few times!

It worked! Thanks so much! What a stressful couple of hours! I was about to give up but the comments encouraged me to keep trying. After several rounds of trying all the methods, the clicking/loosening of the side buttons did the trick finally. So, just don't give up and keep trying. Be patient.

Thank you for this video! My little sister was devistaded because she got the black screen of death, and we found no way to recover any of her data. And the place she bought it was absolutely no help. In a desperate attempt I ended up finding this video, and in the end (smacking the phone) worked! I can barely believe it, but we're both happy beyond words. Thanks!

The first time it worked (after freezing and removing the Sim card), then it was the black screen again. 24 hours later, by reflex, I grabbed my phone and it was back to normal. It's been 12 hours and it seems to be working perfectly. Thanks 😊

IT WORKED!!! 5th September the day i posted this comment. I did everything step by step about 3 times. What made it work the 3rd time was the "tapping" method. Tap hard and fast. Goodluck to future people trying this!

Nothing worked for me from this video for my S21 i got in Feb this year but it was all good advice and worth try. I felt a bit betrayed as have always been a firm samsung believer. We booked in an appt with a samsung shop and within 3 days it was expressed to my house. LCD failure, complete screen and battery replacement free of charge. Very impressed with Samsung's service! Happy once again 👏

omg, something worked. I'm not sure which, but I was just getting up to put my phone in the freezer, when I finally saw it switch on. I nearly cried in relief, ngl.

greetings from RWANDA, EAST AFRICA.Thank you a lots God bless you!!! from last night my Samsung A20s had problems like that, after watching this tutorial now my phone is working very goo!! thank you Sir !!

This worked for me thank you so much! Second time in the freezer, then rebooted straight away!

Thanks! It worked after 4 hours trying. You save my life.

This was ticking me off quite a bit - the phone is great in most ways but is clearly still buggy in general, and then my screen just shuts off in the middle of something and didn't turn back on. Tried everything here, freezer twice - 10 mins then 40 mins. Had it up to my neck with this phone. Found a vid saying use either Dex or just plug it in without Dex. I had a multi-adapter, so a USB-C adapter with a few USB-3.0s and an HDMI. Plugged that into my monitor, then had to painstakingly swipe up and type in my password blind, which isn't short and has capitals etc. Somehow managed that, ran a software update hoping it would help. Didn't seem to. Then realized I had to enter my password again. Struggled more this time and got locked out a few times. Turned off my damn password and tried to troubleshoot some more. Didn't help. Massaged desperately. Went climbing with friends, and a few hours after the initial blackout, my friend uses my phone to check the time, and somehow does so successfully. The screen was back on. Couldn't tell ya why. Maybe that software update patched the issue but it was still stuck in some weird state for a while. No idea. Annoying as sh*t, but at least it didn't last more than a few hours. I'm a Samsung stan, but good grief.

The freezer part worked for me! I was so desperate for fixing this. my phone is just two weeks old and this happened. But it worked, thanks man. see you in heaven

FIRST, I read all the comments about how this worked and I was like "yeah, right!" I've been having a rough time with cancer and my health (and did not need another huge repair bill...so I did pray to Jesus this time ;)! IT WORKED! But let me add, this worked for me, BUT, only when I held it down through 4 resets. In other words, originally, it chimed and I would let go. After 24 hours, I decided to hold down the power button and down volume button, for awhile. The bell chimed four times and then I got the Samsung Screen. It went through start up, but when got to the home screen, it went black. I did it again, held down for over 4 chimes and then while the Samsung logo came up (I plugged it in), it worked! It was a 97% charged though, so it was not the battery. One more thing: I bought a new Samsung Fridge, the handle broke, it leaks. I bought a New Samsung Range, the console flickers 24/7, like a disco, and now this phone! I will never buy another Samsung product. BUT, thank you @WorldofTech for posting this!

Can't believe it but the freezer trick worked for me! Thank you so much!!!

Super helpful! Thank you for the tips! Got my phone up and running!

Thank you so much for this! I tried everything, but putting it in the refrigerator for 15 mins worked for me! Great help! 💙

Tried the freezer method. Popped it in the freezer for 15mins, rebooted it, charged it, and voila the screen shows that the phone is charging! Thank you!

Thank you so much! I tried everything from letting the battery die and to holding power and volume button but nothing worked. This video was my last resort, and it worked. Had to try all the methods a few times and was about to go to the freezer but then it started after I tried hitting it on the side frame.

Power and volume down worked for me so thanks a lot !! So weird for a brand new phone to do this I literally just opened it out of the box a few minutes ago

Tap method helped - dropped my phone and thought it was RIP 😭thanks man!!

Thx for the tip brother, but damn just dropped $1200 on Galaxy S21 ultra and I have to bang it around who would thought 😆

Yup very good video it resolved my problem after the massage phase.Great video thank you.

Up and running after post-freezer reset. Thank you!

It's been 48 hours for me and none of these methods work I'm so confused! Phone hasn't fallen or gotten wet so I'm lostt I literally just got up and the screen was black :(

THANK YOU!! After 7 hours my phone finally started. Did the freezer twice and tapped the hell out of the phone. I can't say whay worked bit something did. This is insane thay so many people face this issue.

Amazing you just saved me days of dealing with a repair company, thanks a bunch!!!

I had an appointment to change my screen tomorrow after already trying the volume and side button things about 4 times. Found this video and decided to give it a few more goes. It worked after forced restart while plugged in. Saved me @ USD 200. Thank you.

I'm a retired carnival worker and I have the large rubber mallet people used to swing with all their might to strike the target on the "Show Your Strength" meter. I find striking the cell phones of any brand just a few times with the large mallet allows me to enjoy my retirement in peace.

Thank you so much bro its realy works

I did the whole cycle and the screen didn't turn on immediately after taking it out the freezer. I let it warm up to room temperature for 10-15 minutes before doing all steps again, but decided to hold vol down + power once more. Screen works now :)

Thankyou so much for the video!! My phone was not working for a long time and I was about to lose all hope. But when i tried the massage method my phone started working again. I'm so grateful for your tips.

Ok, so I wathed through this video I had no hopes as it seems ridiculous. Electronics dies, it just happens. As I charge over the original Samsung round pad it dont add up always. After connecting to computer with Samsung Dex and see that the phone was up and running and fully charged, I force rebooted it. Several times, over and over. No screen, I started massage it gently, front and back. And voila, after a new reboot it booted up with a screen... So, this can help....... ridiculous... :o)

I had the same problem and thought it was a power issue since it wasn't vibrating or had any lights on my phone. I called into ATT Tech support to help me and they referred me to warranty replacement which is closed until Monday and I need my phone for work app authentications.. So, I found this video and followed the tips for massaging and tapping phone and wouldn't you know.. it worked!! THANK YOU!!

Hey, jst wana say THANK YOU! The 2nd technique worked wile still plugged in to the charger. I cant even afford this 1,000 dollar fone & it had dropped by sum white powder stuff but been doin my best 2 take care of this with drop oroof case and screen protector im so glad 4 ur help thank you so much.

Holding the two buttons for over a minute worked. Thank you for the video, and to all the commentors!

It worked. Nothing was coming even after tapping and holding those buttons, only vibrating. After few rounds of doing that suddenly the logo appeared. Now normal! thanks.

Paying such huge sum and need to do all this tricks to start our phone !!.

Thank you so much!!! I did every step and now I can see a charge signal. Before, each time I forced rebooted it (power button and volume) it flashed white but that was it. After I massaged and tapped, £ felt it buzz once. I started the smacking on my palms, it buzzed each time I forced reboot. I smacked it again and all's good!!! Thanks again. Appreciate it.

None of this worked for me and my Note 20 Ultra 5G. I had to go hand it in today for repairs. I has never fallen or gotten wet. Doesn't even have a scratch. And the screen just decided to stop working. I'm very very very disappointed in Samsung. This was my authenticating device for almost everything I do daily. Now my life is basically at a standstill.

after the screen-free power cycle i legitimately thought this vid was bogus, but it actually worked and i feel like a clown, lol. thank you so much, man.

It was the massage for me!!! I put this phone in a drawer months ago, with intent to make time to take to Geek Squad or something. Not sure what prompted me to pull it out and try RU-vid, LOL. But I'm certainly glad I did. Thank you kindly! Much love!

Thanx man. It work for me after the tap part. worked after 1 try

THANK YOU!!! So grateful you made this video!!! My son is back up and running after mutliple forced restarts today, MASSAGED the screen and back and did the force restart again and immediately got the Samsung Logo back and it now works! I didn't feel or hear anything pop back into place, but it's working so I am happy! 😊

Damn! I was getting really worried because I was doing the whole cycle again and again with no results. I contacted my local phone repair shop and they told me that I most certainly needed to replace my screen ($250) and that they'd never heard of a situation where this was happening and you didn't have to replace the screen. Basically "you're shit outa luck, give us money". I was probably gonna give up, but all the successful comments kept me going. Anyways, what worked for me was holding onto the power and volume down buttons forever. I don't think that's emphasized enough. I held them for at least 5 minutes as my phone vibrated every once in a while (I assume it was restarting again and again). Then suddenly it worked! I'd just been holding the buttons then releasing them after the first vibration. Anyways, don't give up hope! Keep on trying.

Thank you beating it and putting it in the freezer for 5 mins worked (sounds sadistic lol)!! I would have thought this was BS had I not previously used a similar method on my PS4 years ago. It had stopped turning on and I read online that beating it would sometimes fix the issue, but didn't even try at first since it sounded so ridiculous. Was about to send it off for repairs when I decided I'd give it a shot......beat the hell out of it and was shocked to see that it turned on with no issues! For quite a while though I had to give it 4-5 good smacks before it would boot up, thankfully at some point I stopped having to haha.

Absolutely brilliant!! Thank you it worked after about try number 5!!. :)

Your awesome bro! Three times and my wife's S22 Ultra is back and running.

What if you don’t see the Samsung logo appear when force restart. The phone is on and still working but can not see anything

it worked, i thought it's a joke and nothing could help my issue. it really worked. Thaaaanks for your great help

Dropped my phone from waist high...the smallest scratch on the bottom left of the screen was present. The phone worked for 5 minutes before it died. I can feel it working because of the tactile feedback but the screen is black with a white horizontal line running through where the fingerprint sensor is.

I have tried all steps several times but just it worked after freezer step i pressed power button then turned on ... Thanks a lot bro .

Tysm I got really worried something was really wrong with my phone, thx for this.

These methods worked. I listened to other comments and found that putting in the freezer for 10 minutes, then giving your phone a few good slaps and holding the power and volume down buttons for 1 minute did the trick (maybe just holding the power button and volume down would do the trick)

Okay, I thought you were absolutely flipping crazy for suggesting this, but out of desperation I attempted it. After all other steps failed, I tossed my phone into the freezer for 15 minutes. I pulled it out and pressed the power button... it fired right up!! What on earth??? Dollar says this is a temporary fix, but who knows! Thanks, man!

Thank you for this video, it really helps me out of a bad situation. I am truly grateful.

Ended up calling the emergency services when I pushed the power button in and out. I wasn't sure who it had called at first because the screen was black!

Yes,These methods are working.Thanks a lot😊😊😊😊

Ok this was actually very entertaining and I was following what you did for my galaxy s21 FE and IT WORKED !!!! THANK YOU SO MUCH !

Thank you for this. After 1st attempt, my phone is okay again. I almost cried when I found out that my phone is only showing black screen. I'm already planning on bringing it to the service center. Good thing I searched on YT and saw this. It worked!

My samsung S21 Ultra had a black screen and I used this method over 10 times. Then, I just connected my cell through USB/Type-C to my Lenovo Thinkpad Laptop and did a hard reset, my screen turned on. For some reason that worked. I hope this helps others.

my screen is not on so it won't show a Samsung logo how do I know if it's reset?

Well, none of your suggested methods worked. But, when doing the rapid pushing of the power button, an loud alarm went off on the phone. It went on for a few seconds and when I pushed the power button it went off. I don't remember having any kind of alarm activated. The screen didn't come on. Fortunately, I have a replacement phone plan and I'll have another one soon.

Thank you. thumb massage helped. do i have to take it to service centre anyway?

My power button was jammed under the housing on the bottom corner of the button causing this problem. Be sure to perform a good visual inspection of the buttons to see if anything looks improper. Thanks for the video it was most helpful!

This is the second time my screen has gone black. I wish I would've seen this video earlier. I would've not lost so many items. Appreciate the help this video gives.

Thank you so much … it work for me alot … pressing my phone power button and volume bottom together for over 15min worked for me .. thanks a lot 🎉❤

massaging worked for me! so weird, but THANK YOU!!! i was freaked out when my phone randomly shut off (but was still on)

Super thankyou!! Tuwang tuwa po mama ko dahil effective po talaga ❤

A COMBO of the all of them and removing my sim card seem to work after 2 hours of doing this. Thank you!

Did ALL of it except for the freezer thing. That is cray. Screen was still black. It would vibrate every time I’d press the volume up and power button simultaneously to force restart. It also didn’t respond when I plugged the charger in BUT I kept trying to force restart about 20x and ... NOW IT WORKS YAY!!!

The freezer trick worked for me. Thank you so much for this video, you saved me a whole world of anxiety!

OMG. The freezer trick worked! The phone must turn itself fully off once it gets too cold. It still has something wrong with it where it restarts itself without warning but at least it's on again. Thank you!

Only the first step actually helped my Samsung screen was off for a week now but after applying the first step it came on with ease thanks for this ❤❤

Thanks. I got mine to work with force reset. Hopefully this black screen won't come back.

I just learnt that spamming the power button on some phones activates an audible panic alarm and dials emergency services.

wooww, It works guys. i did all the stage 4 times. and after tap stage the screen just turned on. Thanks so much

My phone has been broken for months! And the massage technique worked thank you so much

It is still not working

i love u bro thank you so much second method worked for me

It worked. My terrible 2 year old kept throwing my phone and the screen went black. The massaging step made the Samsung logo come on but it still wouldn't come all the way on. So I kept going and the slapping step made it go back to normal. Thanks for making this video I was about to buy a new phone.

Hey, I just watched your video after my S21 Ultra randomly went black, and it wouldn't turn on, even after plugging it in to charge for hours. After trying the tapping the screen and massaging it and doing the power down button and power button-it still didn't show show samsunh logo but then I set it down and it magically showed the charging logo. So then I tried turning it on and it worked! My question is, what do you think was the issue?

Great Video my brother BIG thank youuuuu