I added a wireless charging receiver to my ZTE Axon 7 mini and I get an odd sputtering/stuttering/hiccuping happen at around 91% charge. Every minute or so the phone looses it's wireless charging connection, reconnects, then continues charging until the next hiccup. Eventually the phone will charge to 100% and the hiccuping then stops.
The problem does not occur when the battery is below about 91%. And I don't get this problem if I simply plug the phone in to charge.
The biggest annoyance for me is that I have it charging at my bedside while sleeping and the frequent charging beeps and screen turning on wakes me up. The solution I've found for now is to set my phone to Silent while I'm sleeping, but though that helps with the beeps I can still get woken up by the flashing screen. And of course, there are other issues I have with setting the phone to Silent.
I have wondered if this was the receiver or the charger at fault but I've tried one other receiver and 2 other chargers with the same result.
I do suspect this has something to do with what I assume is a slowing of the charging rate as the battery gets close to full but I don't know how to confirm that.
Any suggestions to resolve this greatly appreciated.
delete
From what I can guess, the problem was a combination of placement of the phone on the charging pad and/or the presence of a metal disk (behind the receiving pad, though) for a magnetic car mount (though this was not an issue with wireless charging in the car via the mount) and/or the end-of-life of the wireless charger.
I found that placing the phone horizontally and in a specific position stopped the fluttering.
And interestingly, about 2 weeks after this post, the wireless charger gave up the ghost.
Related
Hey Guys,
I have a query regarding charging my Hermes / 8525.
If I plug the phone into a wall unit, the orange charge light immediately comes on.
If I use the phone, or receive a call the phone continues to charge.
Once the phone has been used the phone/screen stays on.
When I plug the phone into my car adapter, the phone doesn't begin to charge until the phone goes into sleep mode. But then when I go to use the phone it stops charging. So if the battery is on it's last minutes, plugging the phone into my car adapter does NOT let me continue to use the phone. I have tried 3 different car chargers.
This week I bought an XTLINK Bluetooth Cell to Landline Converter. This is a great little box, and I love that once I walk into my house my cell phone rings through my phone system. Call Clarity is great.
But with the Bluetooth link active constantly the battery drains like crazy.
So I purchased a desktop charger unit. It arrived today. You can use it to charge the phone or with USB to synch the phone. So I plugged in the wall adapter to the cradle, and the phone only charges when not in use.
But when I hook up the cradle via mini-usb to my laptop the phone goes into constant charge mode - but it's doesn't stay on after being in use.
Can someone explain to me why the phone has these different charging modes ? Is there something I can do to change a setting to make the charging more consistent ?
Thank you,
Dave
??
no one else knows about this ?
I have the same problem with USB charging in the car when I was running vp3G's Rom. Now I switch to Crc's Rom and the problem is gone.
But my phone would stop charging if I use my GPS software thru bluetooth and bluetooth headset. In that case I just reset my phone and it would charge normal again.
I have seen this too. I don't know the exact details, but the phone checks the charging current when it is on, to see if it's within a certain value. If it's not, it stops the charging circuit to protect the battery. That's why it works when it is asleep. You'll need to buy a car charger specifically designed for the Hermes.
Yep, there is a long thread on car charging on the forum. Like the other uses says, either buy a HTC official charger or have a look at the other thread about soldering pins 4 & 5 together on the USB connector.
I have a generic car charger from a local electronics store that does not have a problem charging whilst talking over a bluetooth hands free and navigating using a
bluetooth gps receiver, however, I am using one of CRC's roms so that might be why.
The only thing I have found is that if I leave the charger plugged into the hermes when I start the car the hermes stops charging and will not charge again until I reboot it... disconnecting the plug before cranking the engine and then whacking it in straight after works around the problem though.
There is probably so much of a voltage drop when cranking the engine that the little DC-DC convertor can not keep the charge current up.
As of this morning my TF nor the dock will charge from the charger. I suspect the charger itself is damaged somehow but I cannot find anything physically wrong with it from the outside.
EDIT: Weird, after the 20th time playing with it, taking it apart, reseating the USB cord, etc, it finally started charging again after hours of aggravation. Hopefully it stays that way....
I'm thinking the inner pins somehow lost contact with the interposer. I've also noticed that the adapter gets alarmingly warm when charging. As in it's hotter than the PSU I use for my Alienware m17x R2, which is almost hot enough to give a mild burn.
My charger gets pretty warm as well. I think because its charging the device at such a fast pace.
Takes twice as long to charge my phone than the transformer!
Sent from my Nexus S using XDA Premium App
sano614 said:
My charger gets pretty warm as well. I think because its charging the device at such a fast pace.
Takes twice as long to charge my phone than the transformer!
Sent from my Nexus S using XDA Premium App
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Click to collapse
Yeah I'm just hoping this whole thing doesn't keep happening. Had the charger on the dock for a while before I realized it wasn't charging since there's no indicator other than the LED. I'm just glad I got the dern thinking working again. Figures it would get fixed not 5 minutes after I post here and send a ticket in to Asus.
I wonder if cutting a few vents on the charger or at least blowing some air with a fan might help. Perhaps there is a thermal protection shutdown circuit.
there are several threads about this here one;
http://forum.xda-developers.com/showthread.php?t=1042868
i had the same problem, not had it since, something is definitively happening with the charger, changing sockets seemed to help
My charger actually died on me. It doesnt charge at all anymore with the included charger. I can still use the cable to charge off of USB, but that is sloooow. I bought an iPad charger (2 amp) and it charges a bit faster. At least I can still use my tablet until a replacement charger is available.
Just FYI I was told by Asus CS a replacement would not be available for awhile, and they wouldn't RMA the charger by itself.
Sounds like many of the charger problem is the contact between the country plug adapter and the charger itself. First thing I would do if it stopped charging is remove the country plug adapter , clean contacts and reinstall. Sometimes in the process of plugging in or removing the charger, you move contacts enough to either make or break the connection.
Loses charge significantly on standby
I left it on standby last night @ about 70pc. When i turn it on this AM, it is at 20pc Any workarounds?
atxer said:
I left it on standby last night @ about 70pc. When i turn it on this AM, it is at 20pc Any workarounds?
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Click to collapse
Standby and off are very different states. In standby, it's STILL RUNNING. If you leave the WiFi on, it's still communicating over the network. Applications are still running in the background.
I did a test recently (right before I got my dock). I left the TF in 'standby' with WiFi on (turned off the sound) and went to sleep. About 9 hours later, the battery was down around 50%.
Next day I did the same, but I turned off WiFi. Battery ended up still being above 90%.
The workaround is turning it off. Disabling WiFi reduces battery consumption in standby, but it does not eliminate it.
And for the 'stopped charging from the AC adapter' issue, it seems that unplugging the adapter from the wall for a while seems to reset the charger.
FrayAdjacent said:
Standby and off are very different states. In standby, it's STILL RUNNING. If you leave the WiFi on, it's still communicating over the network. Applications are still running in the background.
I did a test recently (right before I got my dock). I left the TF in 'standby' with WiFi on (turned off the sound) and went to sleep. About 9 hours later, the battery was down around 50%.
Next day I did the same, but I turned off WiFi. Battery ended up still being above 90%.
The workaround is turning it off. Disabling WiFi reduces battery consumption in standby, but it does not eliminate it.
And for the 'stopped charging from the AC adapter' issue, it seems that unplugging the adapter from the wall for a while seems to reset the charger.
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Click to collapse
I feel this is a shortcoming of honeycomb than asus. hopefully this gets fixed in a future update. Havent seen this behavior in any other mobile device.
FrayAdjacent said:
And for the 'stopped charging from the AC adapter' issue, it seems that unplugging the adapter from the wall for a while seems to reset the charger.
Click to expand...
Click to collapse
Thank you this fixed of food me.
Sent from my Transformer TF101 using Tapatalk
atxer said:
I feel this is a shortcoming of honeycomb than asus. hopefully this gets fixed in a future update. Havent seen this behavior in any other mobile device.
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Click to collapse
Which part do you think is a problem with Honeycomb instead of Asus?
The dock issues or the power supply not charging? How can the OS be responsible for either? (save for driver issues with the keyboard, which Asus fixed with an update)
I actually had this happen to me, but reassembling the charger didn't fix it for me. I ended up restoring to fix it. Haven't had any issues since.
I had the same problem. Did as stated above... Left charger unplugged for 20-25 minutes, then gave it a try and now it's back to charging... All good.
Information of PSU model with known fault here:
http://forum.xda-developers.com/showthread.php?t=1081435
Possibly a related issue? My Transformer is now not charging although I believe either my cable is faulty or the connector to the tablet itself. I don't have my official Asus charger with me today so I plugged it into another USB power charger and I get nothing. When I plug the cable into my computer the Transformer does show up as a device in Windows however there is still no charging.
Hi,
Recently I've got my wireless charging pad (a well-known $27 generic wireless charger off eBay). Put my phone on, and it charged flawlessly and quickly enough. As soon as it got 100%, the charging stopped, and the LED on the pad turned green. No problem here. But, if I remove the phone and put it back immediately, while it is still at full capacity, the charging starts over and continues infinitely, as if it is connected to a wall charger. This concerns me, since the battery is being kept on trickle charging forever (about 20mA in screen-off mode according to Battery Monitor Widget), and the phone gets slightly warm. Besides, the charger unnecessary drains power from outlet.
I suspect, there's something wrong with communication between power receiver (phone) and transmitter (charging pad), since according to Qi standard, the power receiver should send an End-of-Power message to transmitter, as soon as the battery gets full, which in fact happens initially. But once the phone is removed and put back on the pad with battery still full, it seems, the message is not transmitted anymore, and that causes the pad to continue feeding power infinitely.
Could you please check your Nexus 4 with the wireless chargers you posses? I need confirmation, that this is indeed the phone's fault, and not the charger itself.
Follow these steps to possibly reproduce the issue:
1. If the phone is fully charged, play with it a little to drop the charge for 1-2%.
2. Put the phone on the charging pad and wait until charging process stops (your charger should probably notify that by some beep or LED color).
3. Quickly remove and put back the phone on the pad.
4. Observe what happens.
5. Report here.
Thank you!
I've been using wireless charging at home and work for over a month and love it. But it stopped working a few days ago, and the device no longer detected when placed on a wireless charger. Then it worked sporadically for a day, and now it's dead again. Any suggestions or diagnostics I can run to figure out if it is a hardware or software issue? TIA
Sorry to ask ... but it could be the charger itself ?
I have a cheapo charger and it can act up sometimes. Luckily, it has a LED ... if the light stays on after I remove the phone then I
will need to reset the charger (or it won't charge the phone next time).
I don't think it is the chargers, since the phone started failing on both at the same time and the Nexus 7 still charges fine on the one I have at home. I wonder if there is a software setting to turn wireless charging on/off or something?
I think that the problem may have been static for some reason. I have found that rubbing the back of the phone with a cloth (my shirt) before putting it on the wireless charger gets it to work. This holds true with or without bumper case on the phone, and works for my home and office chargers. Strange.
I just purchased a generic Qi wireless charger receiver card and transmitter for the S5. I can't post the link because of new member rules.
The charger works well but when the battery reaches 100% full the phone stops charging. According to the Qi standard there is no provision or method for a 'trickle charge' used by all the traditional wall chargers (I can't post the link to this either because of new member rules). What Qi does instead is turn the charger on and off periodically to keep the battery at 100% - this process is supposed to be managed in the background operations of the phone.
With the S5 ever few seconds the screen turns on, a charger connected sound is played, and then the charger turns off and the screen turns off THIS REPEATS FOREVER. The phone gets quite hot and it's terribly annoying. This happens even if the phone is turned off. I'm not sure it even has anything to do with the trickle charge process - seems like its stuck in a loop. Qi transmitter detects a Qi enabled device and begins pumping power. Qi device produces 5.3v (or something similar), phone sees input voltage and turns on to notify user of charging, and charging stops almost immediately because the battery is full (repeat, repeat, repeat...).
Is there anything in the settings or using apps that would fix this problem? Does anyone know if the samsung brand S cover (charging cover) has some extra provision that prevents this annoying problem?
farmersride said:
I just purchased a generic Qi wireless charger receiver card and transmitter for the S5. I can't post the link because of new member rules.
The charger works well but when the battery reaches 100% full the phone stops charging. According to the Qi standard there is no provision or method for a 'trickle charge' used by all the traditional wall chargers (I can't post the link to this either because of new member rules). What Qi does instead is turn the charger on and off periodically to keep the battery at 100% - this process is supposed to be managed in the background operations of the phone.
With the S5 ever few seconds the screen turns on, a charger connected sound is played, and then the charger turns off and the screen turns off THIS REPEATS FOREVER. The phone gets quite hot and it's terribly annoying. This happens even if the phone is turned off. I'm not sure it even has anything to do with the trickle charge process - seems like its stuck in a loop. Qi transmitter detects a Qi enabled device and begins pumping power. Qi device produces 5.3v (or something similar), phone sees input voltage and turns on to notify user of charging, and charging stops almost immediately because the battery is full (repeat, repeat, repeat...).
Is there anything in the settings or using apps that would fix this problem? Does anyone know if the samsung brand S cover (charging cover) has some extra provision that prevents this annoying problem?
Click to expand...
Click to collapse
The real question is, why are you keeping it on the charger once it's 100% charged? At that point just remove it and continue about with your day