Hi All
When I have my universal plugged into my USB on my Laptop it dosnt chanrge the device until I switch the screen off is this normal ?
Is there a setting ?
Thanks
Steve
I have the same with USB cables and several chargers (wall and car) I think it depends on the wiring.
Mostly the MDA start charging after a few seconds even if the screen is on though.
Suspect your laptop can't supply enough power through the USB port to power the screen & charge the battery.
You might want to try reducing the screen brightness to minimum to see if that leaves enough spare power to charge the battery.
Mike
It's normal. The laptops suply 0.5A but your charger suply 1A. So you sould keep screen off, or BT and Wifi off if you want your pda increases the battery level instead of decreasing......
Well as I experience the problem it is not a problem of too much load. If I switch the screen back on after it starts charging it works fine still.
sure. Because the screen on eats much power
and it doesn't when you switch it on later?
Let's se. If you turn off the screen using some program (not the pda, only the screen) the energy consumption will be less so your pda will charge. BUT if you let the screen ON the pda will spend more energy than the received by the laptop so the battery level will decrease......
I doubt that is what he is referring too. I assume he's talking about the orange led. That does sometimes not come on when the screen is on, but if you swith it off it comes on and then you can switch the screen back on and charging works fine.
I really doubt that the MDA uses more power than USB can supply. You'd have to have a lot of other devices connected to the same port/hub and seeing how this is on a notebook ...
Probably does not check power requirements all the time so you may get into a position where it can charge & have the back light on.
So one of two things will happen depending on how well you laptop was designed.
1) It will take a very long time to charge while the display is on.
2) Damage the USB power supply as the PDA will take more than the USB port can supply without damaging it.
Mike
Of course I'm not the thread starter, but what I have experienced is that it's not about the speed of charging just that the led needs to go orange and that it will not do so when the screen is on (or with a delay)
So in the end the real problem is that charging does not start when the orange led is not on (as the device remains switched on). Not that it takes longer when the screen is on. Simply that there will be no charging at all.
I have ended up with an empty battery because of this myself a few times. If I remember to switch off the device when it's hooked up then it charges fine if I switch it back on.
I have also had the same problem from a 1A wall charger. So it's not just a matter of power being available. It has to be something with wiring or signals from the charge cable too.
I'll try to see what the difference is between chargers that do work immediately and ones that only work after you switch off the device.
Some USB ports may also be designed to supply power (or a bit more umph!) to external devices. For example, one of my laptops has two USB ports; a normal one and one with a "plus" symbol designed for powering devices like floppy, or USB hard disc drives.
patrickl said:
Of course I'm not the thread starter, but what I have experienced is that it's not about the speed of charging just that the led needs to go orange and that it will not do so when the screen is on (or with a delay)
So in the end the real problem is that charging does not start when the orange led is not on (as the device remains switched on). Not that it takes longer when the screen is on. Simply that there will be no charging at all.
I have ended up with an empty battery because of this myself a few times. If I remember to switch off the device when it's hooked up then it charges fine if I switch it back on.
I have also had the same problem from a 1A wall charger. So it's not just a matter of power being available. It has to be something with wiring or signals from the charge cable too.
I'll try to see what the difference is between chargers that do work immediately and ones that only work after you switch off the device.
Click to expand...
Click to collapse
Completely agreed. I have exactly te same situation, whether I use the computer's USB power or a 1A wall charger. I have tried various cables with to no avail. If I want the device to charge, I must:
1. Turn off the Universal by pushing the power button,
2. Then feed the electricity,
3. Then the orange light comes on, and it is charging,
4. Then I can do whatever I want with the device as it charges.
When my Universal was new, it did not have this issue, so I do not know if a firmware update, a reset, or some third-party software caused this to happen.
My understanding is that the display backlight uses most of the power I can get a decent charge by just closing the lid rather than using the off button.
Mike
Mikew said:
My understanding is that the display backlight uses most of the power I can get a decent charge by just closing the lid rather than using the off button.
Mike
Click to expand...
Click to collapse
My battery was down to about 38%, charging via USB (Lid closed) charged upto about 83% after about 3hours - Not quick but good in an emergency.
Matt
Got a bit of a weird update here...
Normally, my unit does the same as above...wont charge if display is on, removing cable, closing lid/turning off then applying charge resolves issue.
Now, I used to try the charge cable first, if it didnt work, unplug, close lid, apply charge again.
Past few days, I have been inserting the charge cable in and pressing power (lid still up)...at this point it doesnt charge (does if you close lid instead of pressing power), but if i now close lid and re-open lid, the screen comes on and so does the charge..at the same time ?!?!?! :shock: :shock:
I have tried this process and left lid closed for few mins before opening it, but the charge starts when the lid is opened not closed.
And also, if you get unit charging, then remove charge, you can apply charge again in any power state (within 3 mins) and unit will charge instantly?!?!? After 3 mins you have to mess about with power and lid...
So, is the charge linked to the lid closing, or linked to a change of status of the units power??? :roll:
EDIT: ahh haaaa...the 3 min thing was cos my power down timeout was 3 mins :wink: so I did some testing;
1. lid up, screen on, backlight on - insert cable (no charge), press power (no charge), close lid (no charge), open lid (charge)
2. lid up, screen on, backlight off - insert cable (no charge), press power (no charge), close lid (charge)
3. lid up, screen off (from timeout, not power button) - insert cable (no charge), close lid (charge)
4. lid up, screen off (from power button) - insert cable (no charge), press power (no charge), close lid (charge)
......helpppppppppppppppppppppppp :shock:
Ha, ha, I guess these machines are becoming so complex that they start to become really "alive"
QuaCKeReD said:
Got a bit of a weird update here...
Click to expand...
Click to collapse
how many secs elapse before you close lid in these experiments? it is normal to wait a couple of seconds before the charge led comes on.. sorry if this was too obvious!
other ideas: the contact is not good, and when you move the unit it could get better.
do you use the usb sync cable to charge or wall charger? i use the latter. supposed to be much better.
cmonex said:
QuaCKeReD said:
Got a bit of a weird update here...
Click to expand...
Click to collapse
how many secs elapse before you close lid in these experiments? it is normal to wait a couple of seconds before the charge led comes on.. sorry if this was too obvious!
other ideas: the contact is not good, and when you move the unit it could get better.
do you use the usb sync cable to charge or wall charger? i use the latter. supposed to be much better.
Click to expand...
Click to collapse
I have tried these test with USB from laptop, USB from PC, USB from powered HUB, Wall charger and Car Charger...all same results. And I did wait for several seconds before closing the lid, in the vain hope that it would start charging...sighhhhhhhhh.
Only difference I have noted...and this may point to a possible app to fix it...if you use USB cable from PC/Laptop with ActivSync installed, it starts charging more reliably ?!?!? Kinda points to this being a polling problem within the units software ie: activsync connection sends a request which prompts device to check port status, sees power and starts charging...whereas a connection with only power doesnt force a poll. Problem here is, laptop/PC direct connect (as opposed to a hub connection which can cause some problems) is only 500mA power...wall charger is 1A...so charging time on a USB connection is VERY slow.
Anyone know of an application (or can write one) to change polling frequency on device??? Or maybe there is a registry setting that covers this?
*prays on knees* :lol:
You have the problem with the standard MDA Pro charger too? Or do you have another wall charger?
Between the different chargers that I have I see great variation in the time they take to start charging. Some start immediately, some will take a few seconds and some will never start if the device is on (or screen is open) Each charger behaves quite similar every time though.
In my case I doubt software would help much. I actually have 2 MDA pros ( (it fell and the screen broke so I got a new one) They each have a different rom and I think the behavior between them is similar. Although I don't recall ever having the MDA pro mot charge in my car as it did with my old machine.
I'm still guessing there is a difference in a signal line somewhere that the MDA pro detects the charge quicker.
so, here's the problem -
i got HTC sfift, as a gift, and it was used sometime. second time I recharged it - it fails.
as soon as i take out power cable - it goes dead. ok, maybe a second, but it shuts down.
when i load vista, and go in battery info - it says - 1% and charging. and it stays on 1% all the time.
i'm asuming it is faulty battery, but could it be something else ? maybe a power socket ? or maybe those small metal pins beneath the battery, that touch battery and the backside of the shift .. ?
anyone ?
it's the battery. Mine charges up to 50-60% and stays there and the max is slowly decreasing downward ...
My shift can't charge or power up off AC
Hi, I have 2 shifts, and one of them is being funny (and not the funny "ha ha" kind)
The Shift X9500 will not charge off of AC power.
I have done these tests & got these results:
- Battery in & AC plugged in = no charge light comes on & W7 says nothing about charging
- Battery out & AC in = no charge light & W7 says no battery (expected)
- Battery in & AC out = no charge light & W7 says not charging (expected)
I tested AC adapter on a Tekkeon external battery and it charges that external battery so the AC cord works.
A new test was done.
With battery out, and AC cord in, the unit will not turn on
With battery in (and some voltage on battery), and the AC cord in, the unit can turn on, and I can remove the battery (while still on) and the unit remains on, and the battery area says (No battery-AC Power)
So what would make the Shift not turn on with the AC cord in only?
And, what would make the AC cord not charge the battery?
I'm thinking it is related to a fuse/circut protector or something from the AC to the unit, but mostly, why can the Shift "Run on AC, but not turn on with AC only (i.e. requires a battery to turn on)
UPDATE:
I called HTC and the Shift is under warranty so they said to mail it in.
It seems that the issue is mostly eluding to the AC not charging the Battery is causing all the other issues...we will see!
Just got a new "clever" multivoltage car charger, plugged in the Shift and now with either AC or DC external power ...
1. External power green LED not working.
2. No charging icon on the WM side, and no indication of charging on the PC side.
3. Shift won't power up with the battery removed and only external power.
However also ...
4. Battery doesn't discharge with external power on.
5. Once started the battery can be removed and the unit remains powered via external power.
So the Shift won't charge the battery, but the external power is there and preferentially powering the unit. Any chance there is a simple fix?
Sheepster said:
Just got a new "clever" multivoltage car charger, plugged in the Shift and now with either AC or DC external power ...
1. External power green LED not working.
2. No charging icon on the WM side, and no indication of charging on the PC side.
3. Shift won't power up with the battery removed and only external power.
However also ...
4. Battery doesn't discharge with external power on.
5. Once started the battery can be removed and the unit remains powered via external power.
So the Shift won't charge the battery, but the external power is there and preferentially powering the unit. Any chance there is a simple fix?
Click to expand...
Click to collapse
Sounds like you may have spoilt the Power Charging IC in the motherboard. Have a look at the following thread particularly Post No. 6 by reb http://forum.xda-developers.com/showthread.php?t=410161
The guy appeared to know what he was talking about but unfortunately he posted once and vanished..... Tried contacting him when I fried mine (I suspect mine was the more serious Power Distribution IC) without success. Mine could not power up at all hence ended up getting a replacement motherboad....
Looks simple enough to get the motherboard out ... but which IC should I get checked?
Is there a board diagram somewhere?
I have a 602 with EOS and this weekend it just quit. Wont boot, no charge light when plugged in cant get it to do anything, any help on this or do I have a Motorola paper weight??
Would have thought a complete failure such as that would suggest a power problem.
Did the battery have a reasonable charge before the device quit?
You may have a dicky power supply, perhaps borrow one of you are able to.
If not check the power supply output with a suitable voltmeter if you have one.
Power supplies for Xoom have a habit of dying young apparently.
Check your power supply. Sometimes the after-market power supplies don't hit the mark inside the device.
Did u tryed to re-plug charger to power ? This help some time for me - i do not know why this happend. But i never pluged out my charger so sometimes it just dont charging. It its still same and no power , change 1 charger . If it wont help then its xoom related . Mainboard or sth inside...
Hi everyone,
My Photon Q was probably about 30% charge when I last checked with it on. An hour or 2 later it was a little warm and was off. So I went to charge it using the car charger with 500mah charge rate. I came back about an hour later and the phone was really hot and no charging screen so I unplugged it. The green led light is lit when the phone is plugged in.
I tried holding the power button and volume down button, but it won't boot. If I have the usb charging cable plugged in from a PC or charger adapter when pressing those buttons, the green light will flicker off for a fraction of a second.
I then proceeded to dismantling the phone as I suspect a battery issue and the one in this phone is stupidly non-removable. After taking the back cover off, I tested the battery posts and received 0 volts. I still don't know if the battery caused the drain or if there's a short in the phone. I then took off the inside cover that holds the battery in. A few T5 screws later and the battery was removed. I connected the battery to some AA batteries in series to see if I could get a charge. A few hours later I got it up to 3 volts which held for several hours. So I connected it to a few more AA batteries in series to try and raise the voltage. I got it up to 3.67 volts and the battery is listed at 3.7 volts.
A day later and the voltage is still at 3.67 volts so I put the battery in the phone. I went to try and power it on, but nothing. I then connected it to a usb cord and received the slow flashing red led light a couple times before switching to green. The battery started getting warm again connected to the usb charger. After 20 minutes it was approaching hot so I unplugged the USB. The battery read 3.54 volts. 30 minutes later, 0 volts again.
Does anyone know what the actual voltage range is for this phone, as my old Samsung M320 is also 3.7 volts, but when testing the battery I get 4.10 volts? I heard it's pretty specific on minimum voltage. Any ideas for a temporary battery or way to boot the phone before spending $50 on a replacement battery and then find out there's a short in the phone. Is there another key combination to boot the phone, I'm trying to boot it to at least get my pictures and other data off it.
Thanks a lot in advance
Matt
Not the battery, seems to be an electrical short but where
I bought a new battery for the phone which had a 0 volt charge when I received it. I tried putting it in the phone as is to use the phone charger to charge it, but got nothing. So I charged it using 2, then 3 and then 4 AA batteries in series to get it up to 3.7 volts. I then put the battery in the phone and noticed the 2 large chips and the chip centered above them located by the camera get a little hot. I tried with the charger connected and not connected, but same thing. Power button doesn't turn the phone on. Just the green led lit when the USB power cable is attached. So now it seems there must be a short in the phone. Anyone know where I can look to check for a short, blown resistor or something in this phone? Or at least where the rom chip is located so maybe I can turn it into a usb drive to get my data at the least.
And sorry about the double post. I didn't receive any replies in the other section and I really need to get some data off the phone. Seemed the hardware section would be the place to check. Tree fell on the house and pictures before the tree was removed were taken with the phone which of course ironically stopped working right after.