NOTIFICATION: Android System USB Connector Connected/Disconnected
(Topic created on:
2/02/2021 05:53 PM
)
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AliJ2021
Journeyman
last edited
2/02/2021 05:53 PM
Hi, I am having an immense issue on my phone, which also many other people are encountering I saw online as well. I keep getting a non-stop silent notification which says USB Connector Connected / Disconnected. I have a A51 phone and since 3 days this is going on.
I saw many other people encountered this issue. I have tried many of the proposed solutions but in vain. Here is a list of things I did to tackle it:
-Discharge my phone battery to 0% then full charge to 100% with my original battery charger and TYPE C cable.
-Cleared cache and date of USB Settings
-Cleared cache of Android System
-Boot in safe mode and cleared cache of USB settings
-Master reset
-Wiped cache partition in recovery mode
-Downgraded to previous firmware
-Cleaned USB port with a plastic toothpick
-Put the phone 20 hours in rice and even used hair dryer
-Enabled developer mode and change USB default connection to phone charging only
I tried all these but in vain. The issue still persists. I have heard that even after changing the USB port, the problem comes back later. So, it is not a hardware issue then!
Please help...
pickmybrain
Pathfinder
last edited
2/02/2021 06:40 PM
Your USB on on your device is assuming that a connection has been made. you may need to clean out your USB port with a thin brush.
Check what colour the gold pins are on the port. if they are green then water has been in contact and has errorded.
ste1111111
First Poster
13/03/2023 03:28 AM
0 likes
kylie2311
First Poster
8/09/2023 12:16 AM
0 likes
Gloria5468
Student
9/04/2025 09:35 PM
I have the same problem on my note 9,phone won't sleep and the stupid notifications about usb connected and disconnected
0 likes
Lucas Fernández R
Journeyman
last edited
26/04/2021 01:58 PM
Hi there! I'm having the same problem as you. It started yesterday!
Furthermore, that "USB connected/Disconnected" notification does not allow my A51 to remain in "black screen" after having locked it with the right side button. It can only goes black when the charger is connected to it.
What is strange is the fact that some days ago, my A51 started having some troubles with the audio and the speakers. I discovered that it was caused by the frontal sensor, who seemed to be very sensitive every time (he was being activated even if there wasn't anything near). This issue disactivated the sound whie listening a Whats App audio for example or listening music on Spotify.
Now that issue is gone, and this new problem with the USB connected/disconnected notification started.
So weird.
Thanks in advance if someone who can help us!
Navid soltani
First Poster
20/12/2024 10:02 AM
Yes
0 likes
Gloria5468
Student
2/04/2025 03:23 AM
I am having the same issues with my note 9
0 likes
Tatenda1
First Poster
20/11/2025 04:32 PM
Me too I don't know what to do am using A05s
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Lucas Fernández R
Journeyman
last edited
27/04/2021 05:59 PM
Hey there! I think I can bring some good news.
Today I chatted with the Samsung Technical Support and they make me reset the mobile to the factory configuration. (Previously they gave me time to do a strong back up).
After doing that I was a little bit sad because anything had changed. The T.S guy told me I should contact a Samsung Authorized Technical Support local in Buenos Aires, Argentina (Where I actually live)
However, a half hour later, even if this "Usb connected/Disconnected" notification continued showing up, my Samsung A51 started having its screen black again while I lock/block it!
I dunno if this is due to the configuration reset I did, but at least I feel like my battery isn't draining itself anymore.
Anyway, I think I'd go to this Samsung authorized T.S.
Let's keep in touch, 'cause this problem is really hopeless.
AliJ2021
Journeyman
4/05/2021 04:58 AM
Please update what happened, everything is good?
0 likes
A10s teller
First Poster
last edited
4/05/2021 04:53 AM
Hey if you restrict background activity for
Android system it helps a liitle and now i can power off my phone with just one click so i thinks it helps so try it
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AliJ2021
Journeyman
last edited
4/05/2021 04:59 AM
This i the last Samsung phone I am using. Because of this unsolved issue, I am forcing to abandon Samsung.
Cha Vang
First Poster
last edited
4/05/2021 06:31 AM
You just have to clean your charging port... I had this same problem and I also am using A51... Silent Notifications about USB Connector Connected/Disconnected...
I checked up on how to clean Micro C port... And after cleaning it following the steps... My phone can again go back to sleep via my order... 😆
But jokes aside... Just clean the charging port...
drstevenacon
First Poster
21/10/2021 08:57 AM
bro, you have saved me, I have done what you say, clean the port and the problem has been solved. I was worried because my cell phone screen does not turn off due to the constant notification of the charger.
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Muaz Abdul Rasid
First Poster
last edited
8/05/2021 02:19 AM
Here is my solution
My phone is A70, same problem.
First i open DEVELOPER OPTION in setting. Need a few step to open it. You can search in google if you don't know.
Second ON the USB DEBUGGING.
Lastly, RESTART your phone.
It's working for me. Hope you too. Sorry for bad English
FR3EK
First Poster
10/08/2022 12:52 AM
Went away as soon as I restarted phone. We'll see if it holds.
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JuanisH
First Poster
7/05/2024 05:10 AM
Hi Muaz , I just tried this and it worked, thank you. I hope this notification doesn't come back.
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lp1917
Student
18/10/2024 07:00 PM
Thanks. Worked for me on Samsung a32. However had to turn on Transferring files/Android auto in USB default configuration settings afterwards. Otherwise the phone was not detected when connected to PC.
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parijke
First Poster
last edited
15/05/2021 03:23 AM
I am having exactly the same issue. Notification turns on/off every second or so. And also, the phone won't go to sleep mode while disconnected from charger. It does while connected. Samsung S10e
Yashas
First Poster
last edited
18/05/2021 09:32 AM
Hi. Having same issue in Samsung M30s model.
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