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A70 screen will not dim/USB connection.

(Topic created on: 18-08-2019 12:14 AM)
126536 Views
AndrewTanner
Journeyman
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Hey,

 

I've noticed a problem with my A70 regarding trying to dim the screen when locking manually or expecting it to lock after screen timeout.

 

Basically, my phone won't sleep, at least not whilst charging. I spent a good while playing around with settings on my phone, such as timeout and lock screen settings. I also powered off the device but no luck.

 

After trying to figure out the problem further I discovered that the notification tray is being constantly updated every few seconds swapping between "Android system USB connector connected" and "Android system USB connector disconnected". So presumably this is what is keeping the phone awake as it thinks it is being constantly connected and disconnected from source USB source. I cleaned out the USB port but it was pretty clean to begin with. I'm not getting any notifications regarding any moisture detection.

 

The A70 charges just fine (though sometimes there is a slight delay to it recognising being plugged in) and it seems that the USB tethering interface is working well as I can use the remote debugging feature in Google Chrome (for web development purposes) just fine. As far as I can tell, there are no actual issues with the USB port - it functions as I would expect.

 

The A70 was last updated on the 14th August to "Security Patch level: 1 July 2019" and looking over the log of updates I see that "The charger/USB port's moisture detection algorithm has been improved" - so someone somewhere has been looking at this feature and I doubt it coincidence that my device has just developed a fault, given that I've not had it anywhere near moisture or excessive dirt.. and the port still actually works!

 

I've also tried Safe Mode but the issue persists. Also, if I power the device off, then plug it into the wall, power it on, the notification issue stops... until I unplug it/switch off the wall socket - then it comes back again.

 

Anyone else having similar problems?

558 REPLIES 558
adainair
Apprentice
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I am today received my A70 from service problem is bean charging board i( need to be replaced ) everything is fixed under waranty.

Thanks Samsung and good bey guys

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Moosa
First Poster
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@Melike wrote:

I have the exact same problem.I had to turn off my phone because it was wasting my battery .Honestly,I don't know what to do.It is really annoying.Can someone please tell me how to fix it and what to do?


 

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Malatov
First Poster
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Force stop the app then restart
Thats what i did and it stopped
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Ineedhelp3
First Poster
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I have a problem. My phone will not stop giving me a usb connector connected and disconnecting notification and I'm not sure how to stop it. 

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Daniel4009
First Poster
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Estou tendo o mesmo problema.. alguem sabe como resolver?? 

Quem souber por favor me envie um email.. 

*****

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ChelseaSmile
First Poster
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DO NOT I REPEAT DO NOT GO TO A SAMSUNG STORE! They will rip you off!!!! 

After a weekend of chasing my tail with this problem with no fix i went to my local samsung centre. They barely looked at it and wanted £55 to replace the usb port. Went to Carphone Warehouse, very lovely staff, agreed there is  small amount if corrosion because this model is super sensitive to moisture but tried all she could before drawing that conclusion. They charge £42 which I'll be doing next month after pay day. Once its been replaced its worth having a usb port protector

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sandyrocks
First Poster
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Even i am facing the issues now. Seems to have made a mistake by buying this device. Waste of money. Even tried factory reset and cache partition clean

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Tonydif
First Poster
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Definite issue with a70 port, repair clinics can verify.

 

A workaround to get you through the day , prior to getting fixed, is simple.

 

Walk around with cord plugged into the C-port for 10 mins....an uncharged cord, just the cord.  

 

For some reason the plugged in cord tricks the phone into thinking it's being charged, than resets and turns off the notification.  Allowing screen to dim.  Unplug the cord.

 

I've been doing it daily for a week, and it works.

 

 

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Maxouz
First Poster
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I tried doing that but it doesn't work for me...

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w-ie
First Poster
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I had the same problem for months. Recently I downloaded Screen lock and off app and that seems to solve the problem.
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