A70 screen will not dim/USB connection.

[AndrewTanner]

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?

[sll]

What were the original settings for this as it didn't work for me either 

[sz_peter8]

Original setting was transfer media files, but it solves the problem for a while if you turn it on and off.

[sll]

I don't have transfer media files . I only have transfer files or transfer images

[batuhankrmn]

It happened to me yesterday with new security update , I really freaked out and came here . Tried almost every solution and one is worked. So here is the solution for me :

Turn your phone off and plug the charger . Leave to charge overnight and charge %100. It really worked for me . I just created my account just for write this solution I hope yours is gonna fix too , have a great day

[sz_peter8]

Been there, done that, did not work for me

[sz_peter8]

Sorry it was Transfer files

[sz_peter8]

Update. After what I said, I literally did nothing, the notification still changes from disconnected to connected every second, but I can lock my phone so it is on Always On display and do not consume much battery. I hope it stayes this way.

[bello1736]

Same problem for me, start yesterday without advice

I reed the forum and after make different steps (without factory reset) and for the moment the issue dissapear

I don't believe was a hardware problem, if not make some change in the software the problem don't will fix, and some persons that only use the wireless charge have the same problem

[Keeara]

Same issue for me as of everyone.

I tried everything in this post and nothing is working.

I hope Samsung will release a patch for this, that's the worst thing i saw in my life

[b-c]

I have tried this too, but it did not work.

I will be taking the phone to a Samsung shop on Wednesday so will see what they say