Fast Wireless Charging Issue

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!??
 

earldom

Senior Member
Nov 28, 2007
54
26
38
Los Angeles
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
 

earldom

Senior Member
Nov 28, 2007
54
26
38
Los Angeles
Like I said before, it's only SOME chargers that won't work. It was definitely after the update, before the update, all my chargers worked. I went on the Samsung Members app, and people there are having the same problem, but no solutions.
 

bfreexxx

Senior Member
Apr 6, 2009
90
0
0
California
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
2
0
0
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.
 

saveferris

Senior Member
Jun 4, 2008
450
58
28
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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saveferris

Senior Member
Jun 4, 2008
450
58
28
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"
 

chuson1220

Senior Member
Feb 8, 2012
65
14
0
Toronto
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).
 

Archangel

Recognized Themer
Jul 14, 2010
6,639
14,174
263
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.