Phone has a black screen only

Question

Samsung Galaxy A51

Repair guides and disassembly information for the Samsung Galaxy A51 Android smartphone. Released in January of 2020.

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Twond @twond

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crwdns2931729:0crwdne2931729:0: Kul 30, 2021

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Phone has a black screen only

The phone still works. I was able to tell by hearing the sound whenever I charge it. I was also able to tell that the phone still works by calling it with another phone since the phone with the black screen was ringing. I was also able to tell that it was still working by feeling the vibrations whenever I enter a number on the lock screen (When it asks for the password of the phone). Another reason why it is still working is because the alarms are still going off. I was also still able to connect my bluetooth earphones to the phone. I already tried restarting my phone, but what I don’t get is that the boot up logo (The Samsung logo) shows on the screen. After the boot up screen, the screen remains black. Is there a fix to this?

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did you happen to solve this?! thank you!

crwdns2934271:0Mud 14, 2021crwdnd2934271:0 mocego troikos crwdne2934271:0

After Samsung logo screen stays black. I can heard the volume sound, it connected to PC. factory reset is done. still no screen after logo. can anyone help me out this issue. model Samsung A51

crwdns2934271:0Kho 16, 2021crwdnd2934271:0 mann tech crwdne2934271:0

hAllo!

Did you fix it?

crwdns2934271:0Kho 19, 2022crwdnd2934271:0 hallo crwdne2934271:0

I also cannot touch the screen

crwdns2934271:0Mha 4, 2023crwdnd2934271:0 Anas Butt crwdne2934271:0

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jayeff @jayeff

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crwdns2931729:0crwdne2931729:0: Kul 30, 2021

crwdns2933897:0crwdne2933897:0

Hi,

I realize that you may not have a screen display but try the following to see if you do get a display and then if either resolves the problem:

i). Wipe the cache partition and check if that resolves the problem.

ii). Start the phone in safe mode and check if it works OK.

If it works OK in safe mode then a downloaded app is the cause of the problem. You will have to uninstall each downloaded app, one by one and test the phone in normal mode between each uninstall to see if it works OK. When it does then the last downloaded app that was uninstalled, was the culprit. A downloaded app is one that you downloaded and installed on the phone and was not pre-installed on the phone when you first got it.

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Hello, I searched how wipe cache partition, and it said that I have to go to recovery mode. I tried searching for ways to go to recovery mode, and only saw one way. It was to hold both the power button and the volume down button for 10 seconds. After 10 seconds I switch the volume down with the volume up. I'm pretty sure this did not bring me to recovery mode since I could still connect my bluetooth earphones, and can still feel the vibrations when pressing a number on the lock screen. The other videos that helps me go to recovery mode needs a working screen. Is there another way to go to recovery mode?

crwdns2934271:0Kul 31, 2021crwdnd2934271:0 Twond crwdne2934271:0

@Twond

I linked how to do it in my answer. Click on the "blue lettering" Wipe the cache partition

It shows that you hold the Volume UP and the Power button (both together) to get into the recovery mode. Once in recovery you use the volume up and down to navigate through the menu and the power button to select

As I said i don't know if you will get a display but you can only try.

I also linked how to get into safe mode using the hardware keys

crwdns2934271:0Kul 31, 2021crwdnd2934271:0 jayeff crwdne2934271:0

@jayeff

I'm not sure when the screen goes dark, so I tried holding the volume down and power button to restart. After a couple seconds I followed step 2 until the end. I Hold volume up and power button until the logo shows but still does not work. I tried turning my phone off by charging it and holding the volume down and power button. After that I tried turning it back on by holding volume up and power button but still does not work. There was one try though that I did that had a different reaction. I held the volume down and the power button for a couple seconds, then held the volume up and the power button not letting go after seeing the logo. Doing this gave a vibration, but returns to a black screen after that. Does the vibration mean that I made it to recovery mode?

crwdns2934271:0Kul 31, 2021crwdnd2934271:0 Twond crwdne2934271:0

@Twond

I don't think that you're in recovery mode as I've never come across the vibrate operating in that mode.

Does the boot up logo still show when starting the phone?

If so then the only thing that I can think of is that the firmware and the recovery firmware is corrupt or that there is a hardware problem.

You may have to resort to reflashing the phone using Odin and see if that works.

Be aware that you will lose all your personal data on the phone if you try this

crwdns2934271:0Kul 31, 2021crwdnd2934271:0 jayeff crwdne2934271:0

I will just bring my phone to a repair shop. Thank you for your time

crwdns2934271:0Dzi 1, 2021crwdnd2934271:0 Twond crwdne2934271:0

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After Samsung logo screen stays black. I can heard the volume sound, it connected to PC. factory reset is done. still no screen after logo. can anyone help me out this issue. model Samsung A51 — mann tech
Hello, I searched how wipe cache partition, and it said that I have to go to recovery mode. I tried searching for ways to go to recovery mode, and only saw one way. It was to hold both the power button and the volume down button for 10 seconds. After 10 seconds I switch the volume down with the volume up. I'm pretty sure this did not bring me to recovery mode since I could still connect my bluetooth earphones, and can still feel the vibrations when pressing a number on the lock screen. The other videos that helps me go to recovery mode needs a working screen. Is there another way to go to recovery mode? — Twond
@Twond

I linked how to do it in my answer. Click on the "blue lettering" Wipe the cache partition

It shows that you hold the Volume UP and the Power button (both together) to get into the recovery mode. Once in recovery you use the volume up and down to navigate through the menu and the power button to select

As I said i don't know if you will get a display but you can only try.

I also linked how to get into safe mode using the hardware keys — jayeff
@jayeff

I'm not sure when the screen goes dark, so I tried holding the volume down and power button to restart. After a couple seconds I followed step 2 until the end. I Hold volume up and power button until the logo shows but still does not work. I tried turning my phone off by charging it and holding the volume down and power button. After that I tried turning it back on by holding volume up and power button but still does not work. There was one try though that I did that had a different reaction. I held the volume down and the power button for a couple seconds, then held the volume up and the power button not letting go after seeing the logo. Doing this gave a vibration, but returns to a black screen after that. Does the vibration mean that I made it to recovery mode? — Twond
@Twond

I don't think that you're in recovery mode as I've never come across the vibrate operating in that mode.

Does the boot up logo still show when starting the phone?

If so then the only thing that I can think of is that the firmware and the recovery firmware is corrupt or that there is a hardware problem.

You may have to resort to reflashing the phone using Odin and see if that works.

Be aware that you will lose all your personal data on the phone if you try this — jayeff
I will just bring my phone to a repair shop. Thank you for your time — Twond

Ritech @ritech crwdns2934065:0crwdne2934065:0: 1 · Answer 1 · 2022-05-13T23:45:52-07:00

Ritech @ritech

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crwdns2931729:0crwdne2931729:0: Mud 13, 2022

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Go and solve your problem and thanks me later

https://okadtech.com/samsung-a51-black-s...

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I have the same issue, but did not work these steps.

crwdns2934271:0Maw 28, 2024crwdnd2934271:0 Imran Hosen crwdne2934271:0

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chughtai_adnan @chughtaiadnan crwdns2934065:0crwdne2934065:0: 1 · Answer 2 · 2022-06-19T13:34:32-07:00

chughtai_adnan @chughtaiadnan

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crwdns2931729:0crwdne2931729:0: Kho 19, 2022

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I took my A51 to Samsung service center and they replaced the Mother Board. it was still in warranty so they did not charge anything:) which is nice of them here in sweden.

They told me some IC needed repair but as they had Motherboard in excess so they replaced it with new one.

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