Related
anyone knows?
possibly need to write a custom oem_misc.dll. if some one can, then we can have TV out too ...
i heard it is just a reg change
anyone knows pls?
Don't know the reg change in this case, but guess won't really work.
For instance, for enabling FM radio without headset, changing the headset state in reg won't work. I would be happy to be proven wrong though
leobox1 said:
anyone knows pls?
Click to expand...
Click to collapse
Hi leobox1,
Not sure that there is a way to enable this. Charge rate is determined by battery voltage and available current from the charger, not by software (other than the simple battery management chip in the battery). So if your battery is low and you have high power USB connection, it will take as much charge transfer as the battery will accept, provided the supply voltage can keep up. I don't think that the charger circuit can recognise the difference between low power USB, high power USB, or charger USB connection.
mike.waters said:
Hi leobox1,
Charge rate is determined by battery voltage and available current from the charger, not by software .... I don't think that the charger circuit can recognise the difference between low power USB, high power USB, or charger USB connection.
Click to expand...
Click to collapse
I don't think so. When HD is on, the current consumed at a given battery level of charge for a given (same) voltage is higher with wall charger than computer USB. Don't have the values that I measured once... But this doesn't seem to be the case when HD is switched off.
So there has to be some kind of monitoring going on by the CPU.
The charger has the two data pins connected together so the handset knows it is receiving power from the charger and not a USB port. The device will then charge with as much power as the charger will allow, up to 1000mA
The amount of USB power definately changes the speed at which this recharges. I purchased a 3amp car charger and it will charge my Touch HD in half the time it charges from the wall charger. My laptop puts out a small USB power supply and it take all day to charge my phone. My old Pocket PC had the selection for fast or slow charge, this one seems to handle it on it's own.
hmm so in short it is beyond our control?
leobox1 said:
hmm so in short it is beyond our control?
Click to expand...
Click to collapse
In short - Yes
backdoc94 said:
I purchased a 3amp car charger and it will charge my Touch HD in half the time it charges from the wall charger.
Click to expand...
Click to collapse
3 Amps? Are you sure, I don't know if I would want to connect my Touch HD to a 3A supply. Where did you buy it from?
Picked it up from ebay. It works really well, no overheating. The phone only takes what it needs, the charge is controlled by the phone not the charger.
Oh, I know the phone will only pull the power it wants, that is not the issue. A 3 amp power supply would cost quite a bit if it was a decent regulated one, and I would not use anything but a regulated power supply.
So I was guessing you were using a 3A unregulated supply. Which is something I would be very wary of, the risk of a voltage spike is going to be higher than with a lower amperage.
the only reason that the phone charges faster using the htc charger is so that people like us spend more money on official htc accessories.
its not just htc that do this.
why do you even think they have this extusb instead of a normal usb port?
a normal usb port on a pc is rated to give out 500mA (half an amp) of current.
that doesnt mean that a normal usb socket cant accept more than that though. just think back to the old htc devices that charged much faster.
wake up guys
http://www.nuerom.com/BlogEngine/
I think theres something interesting there
chrisque1 said:
http://www.nuerom.com/BlogEngine/
I think theres something interesting there
Click to expand...
Click to collapse
what is it for?
I went out of town this week and made sure to grab my USB cable, but left the AC adapter at home figuring I'd just charge off my laptop via usb. Apparently not... I also tried plugging the USB cord into my iPhone AC/usb adapter with no luck. The only thing I've found is that when you turn off the Tab and connect to one of these devices, a green battery indicator will pop up showing that it is charging. Well, after about 16 hours, it made it from 15% all the way up to 48%. Does anyone know any way around turning it off to charge or why it is barely charging when it is off?
Jaydawgx7 said:
I went out of town this week and made sure to grab my USB cable, but left the AC adapter at home figuring I'd just charge off my laptop via usb. Apparently not... I also tried plugging the USB cord into my iPhone AC/usb adapter with no luck. The only thing I've found is that when you turn off the Tab and connect to one of these devices, a green battery indicator will pop up showing that it is charging. Well, after about 16 hours, it made it from 15% all the way up to 48%. Does anyone know any way around turning it off to charge or why it is barely charging when it is off?
Click to expand...
Click to collapse
Well seeing as it has a 7000mAh battery, just about any run-of-the-mill USB charger isn't going to cut it. The amperage would have higher as well. Now i would hazard that an iPad charger (10 watts) would probably work just fine vs an iPod charger.
Your laptop's USB port isn't providing enough juice to charge fully. With the screen off it will only trickle charge and very slowly at that.
You'll need at least 5 Volt 2 Amp chargers.
You can also try this:
http://forum.xda-developers.com/showpost.php?p=14890063&postcount=16
Or this:
http://cgi.ebay.com/190522553195?ru...ee-All-Categories&_fvi=1&_rdc=1#ht_3085wt_905
I've ordered both last week but neither have arrived yet. I'll report back.
You need a 5vdc supply that will provide 2A. 10W, not 5w as the previous post said. That adapter on ebay won't help the charge, it just disconnects the data line so it does not change its mode when connected to a computer. There are a lot of power supplies that will work and even more that won't, just made sure it supplies 2a. If you want to charge off your laptop then you will want a Y adapter similar to what is on usb powered hard drives but even then you will need to use 2 usb 2.0 or 3.0 ports and will provably only get 1a out.
Sent from my GT-P7510 using XDA Premium App
hi guy, i' just buy a new,amazone kindle, but when using (opening - reading - ...) i found that it not charge any more when pluged usb cable. it just charge only, when screen off ?
at first, i thinking that, that because of new rom (CM7), but when i restore original rom (no root, no TWRP intalled), issue still does. so any one getting same issue. hix 7
Turn screen off, wait for 3 sec til the power led changes to orange, turn screen on again & it'll keep charging
AsakuraVN said:
Turn screen off, wait for 3 sec til the power led changes to orange, turn screen on again & it'll keep charging
Click to expand...
Click to collapse
when turn on .. it discharge again...
Oh, it seem to discharge if you use a charger under 1A (including PC charge). I just tested my 0.6A charger & got the same problem
But my iphone & ipad chargers (which are 1A & 2.1A) still keep charging the Fire whatever I do
AsakuraVN said:
Oh, it seem to discharge if you use a charger under 1A (including PC charge). I just tested my 0.6A charger & got the same problem
But my iphone & ipad chargers (which are 1A & 2.1A) still keep charging the Fire whatever I do
Click to expand...
Click to collapse
nice, i'll check that, and let U know ^^
Yeah, the amps are the problem, the default fire charger is 1.8 amps, I've tested various different chargers, and found some very low amped chargers wont charge it at all. As longs as the amps are high enough thou, you wont have that problem.
Sent from my Kindle Fire using xda premium
I am having trouble charging my tablet. When the tablet is on, I am unable to charge with either the POGO or USB cable. I have also tried other wall chargers for cell phones. I was not using any roms, but had tried out the ktmantra kernel. I have since wiped my tablet using a factory 4.2.2 image from google and am still having the charging problem.
The only way I am able to charge is by charging with the tablet off. It also takes ages to charge (12+hours). Any ideas on what could be causing this? When I plug the POGO cable in, it says it is charging, but the battery percentage continues to drop.
ab325 said:
I am having trouble charging my tablet. When the tablet is on, I am unable to charge with either the POGO or USB cable. I have also tried other wall chargers for cell phones. I was not using any roms, but had tried out the ktmantra kernel. I have since wiped my tablet using a factory 4.2.2 image from google and am still having the charging problem.
The only way I am able to charge is by charging with the tablet off. It also takes ages to charge (12+hours). Any ideas on what could be causing this? When I plug the POGO cable in, it says it is charging, but the battery percentage continues to drop.
Click to expand...
Click to collapse
I've readed some comment on another forum from an user that has the same proble, but for him it takes about 10h. Not sure what's wrong.
Are you not able to charge at all or just very slowly? I just noticed that my Nexus is charging very slowly with the Pogo cable I purchased. I may try going back to the usb cable to verify that the problem is with the cable and not with the tablet.
I was getting very slow charge rates with my usb charger. Around 12 hour charge times even when completely powered off. Anyway, my problem was with using a USB extension cable. Since I started plugging it directly into the wall I've been seeing charge times in the 5-6 hour range. My iPad never had an issue with it, but whatever! You might also try a different wall outlet.
Sent from my Nexus 10 using Tapatalk HD
I cant seem to solve this problem. I have tried using pogo and usb cables with two different chargers. I have also tried using different wall mounted phone chargers. I am not able to get any positive charge while the tablet is on. Using the battery monitor widget, I used to see a +1800 charge with the pogo, and a bit less with the usb cable. Now, the highest I get is -500.
I am only able to charge when the tablet is off, although very slowly. I had it charging all night, and it is now at 60%
When I plug the pogo cable in, the tablet will say it is charging, but it really isnt doing anything.
Any ideas?
ab325 said:
I cant seem to solve this problem. I have tried using pogo and usb cables with two different chargers. I have also tried using different wall mounted phone chargers. I am not able to get any positive charge while the tablet is on. Using the battery monitor widget, I used to see a +1800 charge with the pogo, and a bit less with the usb cable. Now, the highest I get is -500.
I am only able to charge when the tablet is off, although very slowly. I had it charging all night, and it is now at 60%
When I plug the pogo cable in, the tablet will say it is charging, but it really isnt doing anything.
Any ideas?
Click to expand...
Click to collapse
Recalibrate battery? It's probably not going to work though. RMA the tablet as a last resort.
Sent from my Galaxy Nexus using xda app-developers app
How can I recalibrate the battery?
Im in Europe until June, so Im assuming it wont be easy to RMA.
There is also a strange thing going on with the usb cable. My computer is unable to detect it as a storage device. When I plug the charger in, it will not show up as charging when the tablet is on. But, I am able to access the tablet via fastboot.
Where is that oficial pogo charger from samsgoogle? 4 month and counting... 2 Biggest companies în the world are unable to produce a simple cable... Hillarious
Sent from my Nexus 10 using xda app-developers app
The N10 charger is a 2 amp charger and most phone chargers are 1 amp chargers. The N10 will charge slowly with a 1 amp charger if it is powered off, however it needs 2 amps to run the N10 and charge at the same time. Also I have found that not all USB cables are created equal, you may want to try another usb cable. I do not know anything about the pogo chargers. Hope this helps.
My S4 has developed a problem where it seems to stop charging overnight, leaving me with a low battery in the morning. When I plug it into the charger the red light comes on, but when I return in the morning it has stopped charging and the battery has lost 20% of its charge.
A different USB cable, plugged into the same charger, seems to be charging it for now. Does this mean that the original cable is faulty, or do I need to get the USB connector on the phone checked out?
itm said:
My S4 has developed a problem where it seems to stop charging overnight, leaving me with a low battery in the morning. When I plug it into the charger the red light comes on, but when I return in the morning it has stopped charging and the battery has lost 20% of its charge.
A different USB cable, plugged into the same charger, seems to be charging it for now. Does this mean that the original cable is faulty, or do I need to get the USB connector on the phone checked out?
Click to expand...
Click to collapse
Maybe there is overheating problem so phone stops charging process. Try to start charging and observe it. When it stops charging again, check if it is hot.
Diamond 2 owner said:
Maybe there is overheating problem so phone stops charging process. Try to start charging and observe it. When it stops charging again, check if it is hot.
Click to expand...
Click to collapse
Seems to be, i've noticed this myself too on days my room is very hot. Ever since i've undervolted a little it hasn't happened again.
Sent from my GT-I9505 using xda app-developers app
Kenablo said:
Seems to be, i've noticed this myself too on days my room is very hot. Ever since i've undervolted a little it hasn't happened again.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
First make sure that phone is placed on clean, flat surface with good air flow. Worst case is placing it on bed, blanket or pillow - it will overheat for sure.
Undervolting will not help a lot, as it only affect CPU/GPU heating, while they are usually idling during charging. Main source of heat in that situation is not a CPU/GPU but charging itself.
If you have really high room temperature, and you can do nothing about it, than you can slow down charging process, so it will decrease charging heating. Just use regular USB port (computer or generic USB charger) instead dedicated Samsung S4 charger. Charging current will be decreased from 1.9A to 500mA.
If you want to have more control over charging and temperatures you could install Battery Monitor Widget Pro (https://play.google.com/store/apps/details?id=ccc71.bmw.pro). See example of data which you can got with on wireless charging thread: http://forum.xda-developers.com/showpost.php?p=43224425&postcount=1018
My battery temperature goes up to 35C during charging (wireless charging).
The theory re. heat is interesting, but doesn't seem to explain why switching USB cables fixed the problem immediately in this case. Is the S4 particularly sensitive to the fit of the USB cable in the socket??
itm said:
The theory re. heat is interesting, but doesn't seem to explain why switching USB cables fixed the problem immediately in this case. Is the S4 particularly sensitive to the fit of the USB cable in the socket??
Click to expand...
Click to collapse
No, S4 is not particularly sensitive to the fit of the USB cable in the socket.
Keep in mind, that max charging current on S4 is based on detection routine which tries to figure it out what is phone connected to (is it regular USB port specified for up to 500mA or dedicated 2 amps charger). It is necessary to accomplish down compatibility with generic USB hosts (you can connect S4 to every USB device) and fast charging feature (less then 2h charging time).
So, you can say, that S4 is sensitive to USB cable/device type. Switching from dedicated cable/charger to 3rd party, could decrease charging current and generated heat.
I hope, this theory explains all your doubts
Diamond 2 owner said:
No, S4 is not particularly sensitive to the fit of the USB cable in the socket.
Keep in mind, that max charging current on S4 is based on detection routine which tries to figure it out what is phone connected to (is it regular USB port specified for up to 500mA or dedicated 2 amps charger). It is necessary to accomplish down compatibility with generic USB hosts (you can connect S4 to every USB device) and fast charging feature (less then 2h charging time).
So, you can say, that S4 is sensitive to USB cable/device type. Switching from dedicated cable/charger to 3rd party, could decrease charging current and generated heat.
I hope, this theory explains all your doubts
Click to expand...
Click to collapse
Thanks for the explanation - it certainly does help. It looks as if the flaw may be with the detection routine, which was preventing it from charging when connected to the stock charger/stock cable, but was happy to allow it when using a different cable with the stock charger.
It also explains another anomaly - when using the S4 as a Sat Nav in the car with a TomTom High-Speed multi charger the phone will only charge if the screen is turned off. With the screen on it actually loses charge.
Is there any way to "hack" this logic to eradicate these anomalies and ensure that the phone charges when you want it to? Or could it be that there is actually a fault with my phone that needs to be checked out?
I suspect this may not be normal...I've just plugged the phone into the stock charger/cable. The phone/battery are not remotely warm, but the phone isn't charging, even though the battery icon in the notification bar says that it is (there's a lightning bolt in the battery icon but it just lost 1% charge in 2 mins with the screen turned off).
The LED went red when I first plugged it in, but the red light went out after a minute, although the lightning bolt remained in the battery icon in the notification bar.
???
itm said:
I suspect this may not be normal...I've just plugged the phone into the stock charger/cable. The phone/battery are not remotely warm, but the phone isn't charging, even though the battery icon in the notification bar says that it is (there's a lightning bolt in the battery icon but it just lost 1% charge in 2 mins with the screen turned off).
The LED went red when I first plugged it in, but the red light went out after a minute, although the lightning bolt remained in the battery icon in the notification bar.
???
Click to expand...
Click to collapse
At this point it sounds like you have a defective battery/phone Anyway, here's a sample test you can try:
Get this app: Galaxy Charging Current Lite
With the stock charger/cable you should be seeing (remember to keep refreshing):
- Not charging - -
- Screen on - 1200 mA
- Screen off - 1900 mA
(yes, there's a difference in the charging current depending on whether the screen is off or on)
Plugged to a standard USB port: 460 mA
Plugged to a car charger - depends on the output of the charger - most car chargers are 1A these days
Try with different cables plugged into a PC USB port - you should be getting a constant 460 mA charge. If it stops as described and you tried a few cable it's likely the battery/phone. HTH
Breach1337 said:
At this point it sounds like you have a defective battery/phone Anyway, here's a sample test you can try:
Get this app: Galaxy Charging Current Lite
With the stock charger/cable you should be seeing (remember to keep refreshing):
- Not charging - -
- Screen on - 1200 mA
- Screen off - 1900 mA
(yes, there's a difference in the charging current depending on whether the screen is off or on)
Plugged to a standard USB port: 460 mA
Plugged to a car charger - depends on the output of the charger - most car chargers are 1A these days
Try with different cables plugged into a PC USB port - you should be getting a constant 460 mA charge. If it stops as described and you tried a few cable it's likely the battery/phone. HTH
Click to expand...
Click to collapse
Thanks. The Galaxy Charging Current Lite app shows:
- Connected to stock charger, screen on, with stock battery: a steady 340
- Connected to stock charger, screen off, with stock battery: 380
- Connected to PC USB port, with stock battery: 460
- Connected to car charger, with stock battery: 500
- Connected to stock charger, screen on, with 3rd party battery: a steady 300
Can I assume from the above that the phone is faulty?
itm said:
Thanks. The Galaxy Charging Current Lite app shows:
- Connected to stock charger, screen on, with stock battery: a steady 340
- Connected to stock charger, screen off, with stock battery: 380
- Connected to PC USB port, with stock battery: 460
- Connected to car charger, with stock battery: 500
- Connected to stock charger, screen on, with 3rd party battery: a steady 300
Can I assume from the above that the phone is faulty?
Click to expand...
Click to collapse
I just tried a few different USB cables with the stock charger - these gave me interesting results:
- Cable 1 : 1200
- Cable 2: 1200
- Cable 3: 420
So maybe it's the stock cable that's the problem?
itm said:
Thanks. The Galaxy Charging Current Lite app shows:
- Connected to stock charger, screen on, with stock battery: a steady 340
- Connected to stock charger, screen off, with stock battery: 380
- Connected to PC USB port, with stock battery: 460
- Connected to car charger, with stock battery: 500
- Connected to stock charger, screen on, with 3rd party battery: a steady 300
Can I assume from the above that the phone is faulty?
Click to expand...
Click to collapse
Actually it looks like more of a problem with your stock charger (as you're getting normal charge from a USB port)!
- Are you using the same cable with your stock charger, when connected to the PC USB port and your car charger? Try a different cable in all this scenarios to rule out the cable as a factor.
- What I'd recommend is to find another stock charger - go to a Samsung shop / service center - ask to test on site and see what input your phone is getting. You may test with any other mains charger but as you need to be sure of the power it delivers I'd test with an official Samsung 2A charger. If you don't get 1200/1900 with another official charger (and a working cable) then it's an issue with the phone/battery.
Re your car charger. It's possible that your car charger is 500 ma only (check the writing) if it's 0.5 A you need a new one (get a 2A one). Is it a real 12V cigarette charger or are you plugging the cable in a USB port on your car?
---------- Post added at 12:15 PM ---------- Previous post was at 12:11 PM ----------
itm said:
I just tried a few different USB cables with the stock charger - these gave me interesting results:
- Cable 1 : 1200
- Cable 2: 1200
- Cable 3: 420
So maybe it's the stock cable that's the problem?
Click to expand...
Click to collapse
There you go I fried two old cables already so not all of them can sustain the 2A charge. Use Cable 1 or 2. Make sure it also charges at 1900 ma - plug it in, open the app, refresh so that it shows 1200 ma. Turn the screen off. Give it 5 seconds (red led should turn on). Turn the screen back on. immediately refresh - you should see 1900.
I'm getting 1200/1900 from the stock charger if I use "Cable 1" or "Cable 2" as referred to above, so I guess that indicates that the charger is OK? (the stock cable only gives 300 from the same charger)
I'm surprised that I can only get 500 from the car charger using Cable 1/2, as it is advertised as having a 2amp port. In fact I get a higher charge rate (740) using the "slower" port on the TomTom charger - i.e. the port labelled "high-speed" actually delivers less current.
???
Yes cable 3 has gone bad. You should be good with the others.
Re the car charger - is 500 all you get with cable 1 or 2? Is the charger rated 2A for Android phones? Note that some high current chargers are high current only for Apple products and default to much lower output with non Apple products. It can also be a bad charger.- I had a defective 2A Anker car charger which wouldn't charge above 760. I RMAed it and the replacement works as intended.
Sent from my GT-I9505 using xda app-developers app
Breach1337 said:
Yes cable 3 has gone bad. You should be good with the others.
Re the car charger - is 500 all you get with cable 1 or 2? Is the charger rated 2A for Android phones? Note that some high current chargers are high current only for Apple products and default to much lower output with non Apple products. It can also be a bad charger.- I had a defective 2A Anker car charger which wouldn't charge above 760. I RMAed it and the replacement works as intended.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
I can get 1200 from the car charger with Cable 1. It's rated at 2A for TomTom devices.
Now this is bizzarre...I just took delivery of a brand new Nexus 10 and immediately tried the charger and cable from that with the Galaxy S4 - I only got 300ma. Can this really be coincidence??
Yes, weird. What about the the other way around - not sure whether the app will work on the Nexus but you can try. Try the S4 charger and cable with the Nexus.
Sent from my GT-I9505 using xda app-developers app
Breach1337 said:
Yes, weird. What about the the other way around - not sure whether the app will work on the Nexus but you can try. Try the S4 charger and cable with the Nexus.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
The Galaxy Charging Current App doesn't work on the Nexus 10 for some reason - it doesn't respond to a charger being connected to it
Can Samsung really be shipping dodgy cables on a mass scale?
itm said:
The Galaxy Charging Current App doesn't work on the Nexus 10 for some reason - it doesn't respond to a charger being connected to it
Can Samsung really be shipping dodgy cables on a mass scale?
Click to expand...
Click to collapse
I doubt it. No surprises that the app doesn't work on non-Galaxy devices.
By the way how did you try the cable from the Nexus? Isn't is a pogo cable (the wider one)?
Breach1337 said:
By the way how did you try the cable from the Nexus? Isn't is a pogo cable (the wider one)?
Click to expand...
Click to collapse
No it's a standard Micro USB.
itm said:
No it's a standard Micro USB.
Click to expand...
Click to collapse
If you get the same low charge rate with the Nexus charger/cable I'd take it to Samsung and show them the charge rate you're getting. Even if it works with another cable something is definitely not right - let them figure it out.