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A70 screen will not dim/USB connection.

(Topic created on: 04-11-2019 05:44 PM)
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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?

556 REPLIES 556
Benson97
First Poster
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I hav same problem
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123456789101
First Poster
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Hi ,I am getting the same problem of 'USB connector connected and disconnect' on my Samsung A70 ...
Can someone help me to solve this problem please...
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Hailey123
Pioneer
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just hard reset the phone by pressing down volume and start if the issue keeps on just wait a day and then make the same thing should resolve the problem
Hardyb31
Pioneer
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I had the same issue I tried everything on my a70 and nothing worked so I just waited 2 days and it was back to normal 🙄
Hardyb31
Pioneer
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Idk what's going on with the a70s but mines  started back working after 2 day's I lost everything after a factory reset but it still was acting up. A day or 2 later it was back too normal 🤷🏾‍♂️

Shiraaz
First Poster
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I have the same problem. Is there a solution.

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Hailey123
Pioneer
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don't do nothing will be back tk normal in a day or 2 

Shan66
Explorer
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 I basically done all the troubleshooting mentioned in this thread. First, unlocked developer mode. -Scrolled to "default usb configuration" selected "charging only" (even though this was done already, I changed it to transfer files, reboot the phone and then selected charging only), once the charging only is selected I done the next below -Someone mentioned dialing *#0808# and selecting the last option then tap on Reboot. Once the phone rebooted, I actually had my device shut down for a good 20 minutes. Until my screen had that brand new cold feeling (which I haven't felt in awhile since this issue), I switched my phone on and no Android System USB notifications

Shan66
Explorer
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I still don't have the problem. My phone's working like a gem again. 

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Mikeyguitar
Student
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What did you do to get a final fix ? Mines like this for a week 😞

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