Hi,
It seems my battery went dead and my phone doesn't turn on because my microUSB charger is not the Note2 original but another Samsung 5v 700mA charger. Trying to turn on the phone only blinks the red led. Should the phone turn on by itself if connected to the charger longer?
Edit: after 10 min's I was capable to turn on the phone. Seems the battery needs a minimum voltage to be able to be powered on.
Related
**** Cradle mod not working!!!
I modded my MDA cradle. Didn't work out. I think that the USB bus isn't suplying enough power. When I put the MDA in the cradle it syncs without any problem and the charging LED goes to yellow, even the power meter says "charging". Strange enough after half a day on the cradle the MDA doesn't charge. It completely depleted. So I needed the charge it using the external charger.
I rececked the connections and used my multimeter to verify the power. It does supply the 5V. But I think that the 500mA is not enough to charge the 2A beast.
Niels
charging issues
Maybe you already did this but make sure that you turn off the unit while charging. Make it turn off automatically after a few minutes. It will occasionally wake up and if it's not set to shut off it won't charge enough compared to the screen draw on power. The USB 500ma is enough it just takes longer (around 8 hours) compared to the 2amp charger ~1-2 hrs.
Mike
Re: charging issues
mtarro said:
Maybe you already did this but make sure that you turn off the unit while charging. Make it turn off automatically after a few minutes. It will occasionally wake up and if it's not set to shut off it won't charge enough compared to the screen draw on power. The USB 500ma is enough it just takes longer (around 8 hours) compared to the 2amp charger ~1-2 hrs.
Mike
Click to expand...
Click to collapse
Well, you're right I don't turn it off. I'll try that for a change.
Thanks
Niels, also make sure that you connect the MDA cradle directly to a port on your PC/Laptop, and not via a USB hub. USB hubs are known for not being able to provide enough juice.
MDA Cradle Mod and now it is charging
Got it working now!. I remodded the craddle (yes soldered again!) I connected it to my computers' 5V circuit. No problems now. I can leave it on AND charge it.
anyone else experiencing a problem with car chargers? my phone charges fine off of wall and usb charging but as soon as i plug in my car charger is lights up, 2 secs later light goes off and after that it just keeps doing it with wall and usb. i have to reboot my phone and/or pull my batter out......anyone have a solution for this?
The car charger probably can't supply enough amps or it is under/over volts causing the charge circuit to freak out.
Also noticed this behavior if phone is too hot. Refuses to charge with flashing orange light until temperature falls below a certain threshold... Seems to be around 100 degrees.
Sent from my PC36100 using XDA App
Bump!
Noticed this twice in the last couple of weeks. My wall chargers (supplied, aftermarket, Zune, etc) all work fine, as does charging from any USB port.
Car charger, on the other hand, both a Sprint/HTC aftermarket and a Walmart special, seem to have some troubles.
The EVO registers as charging, shows the charging icon, and admits to charging (AC). However, the charge never increases, and using the phone will actually decrease the charge. Left plugged in, the phone will totally discharge and automatically power off. All while the amber charging light is solidly on.
EVO: Rooted stock 2.2 with netarchy's latest BFS kernel.
Car: 2008 Nissan Maxima. Voltage fairly steady on the 12v receptacles.
What gives!
Have you tried car charging it on different kernels?
Could it be that the car doesn't provide clean, consistant power? With usb, power goes through a vreg circuit (the psu, the mobo), on a wall charger, there is a vreg circuit within the adapter that would compensate for fluctuations in AC voltage.
If I'm not mistaken, the car-to-usb adaptors are little more than a resistor circuit to cut the voltage down. The 12V provided by a car will always fluctuate, so maybe the simple resistor circuit doesn't provide adequate compensation.
Just my $0.02
I think I read some where that charging with the A/C charger and NOT plugging it into the computer to charge will allow the phone to charge faster..
But is that it?
I charge my phone every night with my computer and the supplied USB cable..
Its always 100% in the morning (or 90, or inbetween, depends)
If you're charging from the computer, it will charge at 500 mAh (so as not to damage the computer's USB port). If you're charging with the AC adapter, it will charge at 1000 mAh. So AC will charge faster, but both will reach the same point eventually.
I've heard that only charging over USB will make your battery last longer before you have to replace it - I guess charging faster wears it down more. However, I don't know too much about that.
I am charging via usb through my usb 2.0 port, and it's been about 3 hours since I've plugged it in and it is still not fully charged yet.
It was at 10% when I plugged it in.
Is that a normal time?
I have the same thing. your phone draws much less power charging through usb than through an actual outlet.
I've had my phone charge from dead to full in just under an hour when plugged into a wall charger.
Sent from my T-Mobile G2 running Cyanogenmod.
This is in regarding my several week old HTC10, which I got off ebay. Phone is S-Off and running stock US unlocked firmware.
The phone is not able to negotiate quick charge with the original HTC charger.
If I use my old HTC charger (from the HTC ONE - 5V 1A) or my ipad charger (5V 2A) or my computer USB port (5V 0.5A), the phone will charge, although slowly.
If I attach the HTC 10 charger when phone is 80% or more charged (ie not really using quick charge), the HTC 10 charger will work, and phone shows "charging rapidly".
But if I use the HTC 10 charger when battery is less than 80% (presumably when the phone is asking for higher volts) I get this:
phone shows "charging on AC" for half a sec or so,
then "charging rapidly" for half a sec,
then "discharging".
This repeats every second or so, and the phone barely charges. (Certainly much slower than my 0.5A computer port.)
I suspect that the phone is having problems negotiating a charging voltage with the charger, and cycling on & off repeatedly as it tries.
I guess this is due to either a bad charger, a bad cable, or bad firmware or hardware.
I don't have other USB C cables or Quick charge 3 power brick to experiment with.
Anyone has any idea of which is likely the culprit?
This is not a deal breaker as I plan to use mostly my 1A charger to slow charge in order to preserve battery longevity. But it would be nice to figure out why quick charge is not working.
Thanks all.
Update: Borrowed a Samsung Quick Charge 2.0 adapter, and it worked with my current cable. So I guess the adapter is faulty.