Fast Wireless Charging Issue

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So when I put my phone on my charger it says "fast wireless charging" then after about 4 seconds it just automatically changes to REGULAR charging and the time DOUBLES! I have been using this charger cradle from ANKER for a three years so I thought maybe it's the charger. But no. I used a S9 which also has fast wireless charge. It does not do what the note 20u does at all. I've rebooted mult times and turned off and on fast Wireless charging and still the same thing keeps happening. It should be noted this started happening after an update to N986USQU1ATI5 / N986UOYN1ATI5 / N986USQU1ATI5

Has anyone experienced this!??


Senior Member
I have a similar problem that started after the upgrade, and only on 1 charger (Aukey). It starts as fast charging, then after about 10-20 seconds, stops altogether for less than a second, then starts fast charging again. If the screen is on, the charging sound goes off every 15 seconds or so. It's only the Aukey charger. Strange.

I checked again, and it does also go to standard charging after stopping. Also, I changed power the power supply, and it still does the same thing.
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Wow. I wonder if Samsung did something shady like remove fast Wireless charge or made it so fast Wireless charge only works with their chargers?? This seems VERY suspect that this is happening to other people. Have any of you reported this to Samsung? I'm about to get in touch with their support and see what they say


Senior Member
Jul 23, 2014
i have the same issue with baseus 120w charger....charges with super fast charging for couple of minutes and then goes back to normal fast charging.


Senior Member
Jun 15, 2010
Same here. Pauses charging every 5 to 10 seconds and actually never charges. Only works on the Samsung pad now.


Senior Member
Dec 6, 2009
For what it's worth, I have a spigen wireless car charger and it does fast charge.


Senior Member
Apr 6, 2009
s20 wireless charging pauses since the sept update for me, too. rebooting, clearing cache, force reboot all fail to clear this problem. makes ya wonder how much testing is done with the updates samsung rolls out.

Half Dead

New member
Feb 7, 2014
I just received a generic 15w wireless charger stand from Aliexpress and noticed this issue too.
My older S9+ fast charges on it fine, while my new Note 20 Ultra only slow charges (~1200 milliamp vs ~700 milliamp input according to the Ampere app... This is with my Note 20's charger brick and cable.

Seems like Samsung are intentionally trying to lock out third party chargers.


Senior Member
Jun 4, 2008
Same here with the I Ottie I tap 2.
Was working before September update, Have tested with Samsung S10 plus and s9. On both, fast charging is working.

Any workaround yet, any one contacted Samsung ?
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Senior Member
Jun 4, 2008
Quick update, contacted Samsung support. Fat lot of good that did.
Wanted me to take it in to a service centre. I reiterated it wasn't a hardware problem, it was software.
Anyway she stated to send a bug report through to Samsung with the description.

- Settings
- Information about the phone
- Contact us
- Report error

Next, enter a detailed description of the anomaly and attach the system log data. You will need to check the item at the bottom "Send system log data"


Senior Member
Feb 8, 2012
I have all type of fast chargers (from 18w to 65w) at home/office... old/ new/ or third party and mostly they can fast charge on my S20+. I found this "slow down charging" issue occurs when it's on a wore USB-C cable/ or cheap third party cable (especially those 1 to 2 or 1 to 3 cable).


Inactive Recognized Themer
Jul 14, 2010
Reno, NV
For what it is worth, I have a third party cheap charger (seneo) that used to flop flop between fast and regular wireless charging however, I swapped out the power cord with an older S10 phone cord and a Samsung fast charger power adapter and now I have fast charging.