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Qi Charging Issue; Turns On and Off at 100% Charge

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bleuiko

Senior Member
Jan 29, 2007
354
46
Do any of you have an issue where the phone screen turns on and off (and beeps) when it reaches 100% charged using a Qi charger? I am using the official Samsung wireless back cover with a Nokia Qi charging pad. When the phone reaches Charged, it will turn the screen on, then it'll say Charging Wirelessly 100%, then it'll turn the screen off and start charging... and the cycle repeats every 20 second or so. Anyone else?
 

solodV8

Senior Member
Jul 24, 2014
62
3
I think it is standard glitch on all Samsung phones. The same thing happened with my old Note II, and it happening with my Note IV too. I have to shift phone maybe 1" off center so it would not make that noise.
 

nicholb

Senior Member
Aug 13, 2009
185
55
Yes, I turn off notification and system sounds at night while charging with Tasker, and I use Gentle Alarm to display a dim clock so I don't get the screen flashing.
 

bleuiko

Senior Member
Jan 29, 2007
354
46
Thanks for the quick reply! Now I know that it isn't just my phone or charger, I can rest easier and just let it be (mostly will just take it off stand when charged).
 

d4rkkn16ht

Senior Member
Mar 19, 2008
534
112
Bandung
www.youtube.com
My Note 4 is using S-View cover with wireless receiver built in + OEM Samsung Wireless Charger Pad (the big one) & I never experience your problem.
It only shows "Charged" once then fall asleep again until I turn it on.
 

zurkx

Senior Member
Aug 9, 2014
489
104
this is correct if the note 4 is not properly centered ona single coil charger. upgrade to a 3 coil or center the charger coils with the base.
it takes place because the signal to cut off the charger at 100% is not properly received by the charger base so the charger keeps charging. the note 4 assumes the sginal sent will cut off charging and goes into a no charge state. then when current keeps flowing through the coils it wakes up and issues a no charge command again...which is again lost because the coils are too far apart. and the cycle repeats.
solution is to switch to a 3 coil charger or align the coils with each other.
 

solodV8

Senior Member
Jul 24, 2014
62
3
this is correct if the note 4 is not properly centered ona single coil charger. upgrade to a 3 coil or center the charger coils with the base.
it takes place because the signal to cut off the charger at 100% is not properly received by the charger base so the charger keeps charging. the note 4 assumes the sginal sent will cut off charging and goes into a no charge state. then when current keeps flowing through the coils it wakes up and issues a no charge command again...which is again lost because the coils are too far apart. and the cycle repeats.
solution is to switch to a 3 coil charger or align the coils with each other.
Is there a way to find out how many coils in my charging pad?