Wizard wont charge through usb - 8125, K-JAM, P4300, MDA Vario Accessories

Hi to all knowledgeble folks
My wizard on 02.
Will not charge thru usb, the battery was at about 12%
when i connected it to the pc the orange charge light came on, i left it
be now I ve just come back to it and theres nothing i cant use the mains adapter coz its at work my usb is a mains powered hub
any ideas :roll:

Hi, the usb has not enough output to charge wizard when its dead. You need the mains charger i am afraid. Even then you have to leave it connected for quite a while before the light comes on. Some people have had success with a car charger if you have one.

If you've got a spare usb cable you can cut the plug off, put the + / - wires against the relevant points on the battery, and leave it for 15 minutes. Should give you enough charge to boot the OS, at which point the USB connection will charge it.
Worked for me.

Contacting the battery terminals for just 2-3 minutes will give it enough charge to start up and give you time to place the USB charger on it to continue and complete the charge.
This is a fix that really works. Much cheaper than getting a new wall charger.

Oh, and (usually) the red usb cable is positive, the black negative. But I take no liability if your battery (or the PC) goes pop!

wizard wont charge thru usb it does now
:lol: :lol: :lol: meschle Webreaper jschaff
Your all stars i did the trick with the cut usb cable works a treat
Many MAny thanks

Related

Will USB connection charge spare battery?

Hi
My PDA2K cradle will charge my PDA2K fine via USB without the power adapter being connected.
What I need to know is if it will also charge the spare battery?
Does anyone know?
Does anyone HAVE a spare battery, they seem to be like hens teeth.
Robin
If it's the same as the XDA II dock then no, it won't charge the spare without the mains supply.
You need external power for spare battery.
I agree with Cruisin-thru.
It definitely does not charge the second battery when using the USB connection. I've already found this out the hard way....
T
Test for yourself. Cradle plugged into the mains and USB with ONLY the spare battery inserted - light on the front right hand side glows (Orange M200 cradle). Unplug the mains light goes out.
Voila!

Battery charger bug!!:-)

I had a BIG problem with a third party battery charger (RIMAX).
It is a Car charger and a wall mount charger, with USB plug and cable, but IT WORKS ONLY WHEN THE WIZARD IS ON! If the battery goes down for some reason and the phone couldn't turn on, you're lost! :evil:
So, the lesson learned is: before travelling without your original charger check if the one you have could charge the wizard also when is OFF and not only in stand-by mode!
I also have a strange issue with a third party car charger - after plugging in the car charger I have to switch the universal off then on again to make it charge...very wierd!
I've also got one of those, though would prefere one with a bit of cable in the middle to reduce stress on the connector.
Have you checked the amp output on the chargers. They're probably putting out 0.5 amps (USB spec). If you look at the wall charger that came with the wizard, it puts out 1.0 amps. That's why when your battery is completely dead, the 0.5 amp charger can't put enough juice into it to get the battery up to a high enough level.
Actually, according to the USB spec, a device is not supposed to consume more than 100mA without being recognized by the USB host. That is, the USB host is only going to give your phone 100mA until the phone says, "hey, i'd like 500mA, please!"
Sometimes manufacturers may shortcut this and just allow the port 500mA at all times, but a standards-conforming one won't.
This MAY be part of the reason why we have problems charging a completely dead Wizard -- it's only going to get 100mA until the device has enough juice to wake up and request more.
This MAY be part of the reason why we have problems charging a completely dead Wizard -- it's only going to get 100mA until the device has enough juice to wake up and request more.
Click to expand...
Click to collapse
Ah! - That's the problem I had yesterday - had left my Vario on with TomTom draining away the battery and forgotten about it on Saturday night, had just spent the day moving house and everything was in chaos and had no idea where the charger was.
So when I realised it was dead on Sunday whilst out in the car, I plugged it into the car charger that came with my GPS unit, which I have used to charge the phone many times before - but it would not charge, no light, nothing!
When I got home all I could find was the mains charger for the GPS and a USB cable - tried both and none would put any charge into the phone.
By this stage I was shi**ing myself that the phone, which I got mainly for GPS for travelling around Germany in June, was DEAD - with 3 weeks to go!
of course later in the day, once I had eventually found the proper charger, it took a slight pause after being plugged in and then the little orange light of joy came on and brought me salvation!!!!!
I suspected it might have been something like the previous poster said but not being very technical I really didn't know!!
Thanks.
I've had the same frustrating experience. When the battery is very low or dead the only charger that will work is the original adapter, not the car charger or cradle or pass thru my laptop. As I result I have to carry the original adapter whenever I travel and I often wake up with a dead Wizard if I dont realize how low the battery is when I park it in the cradle.
Very frustrating. I dont understand why Boxwave doesnt use a beefier adapter connected to the cradle.
I've had the same frustrating experience. When the battery is very low or dead the only charger that will work is the original adapter, not the car charger or cradle or pass thru my laptop. As I result I have to carry the original adapter whenever I travel and I often wake up with a dead Wizard if I dont realize how low the battery is when I park it in the cradle.
Very frustrating. I dont understand why Boxwave doesnt use a beefier adapter connected to the cradle.
I've had the same frustrating experience. When the battery is very low or dead the only charger that will work is the original adapter, not the car charger or cradle or pass thru my laptop. As I result I have to carry the original adapter whenever I travel and I often wake up with a dead Wizard if I dont realize how low the battery is when I park it in the cradle.
Very frustrating. I dont understand why Boxwave doesnt use a beefier adapter connected to the cradle.

USB car charger

Does anybody charge their TyTN in car via a usb car charger. I use a usb car charger for different devices: Bluetooth headset, gps reciever...
I also used it to recharge my Blue Angel.
Unfortunately I can't charge the TyTN. Has anyone had the same issue?
The charger says that it can charge 1Ampere. The original home charger is also 1 Ampere, so I don't understand why it doesn't work.
Have tried it with two different usb car chargers and both have the same problem: It charges only if TyTN is turned off. When I switch it on then the red charging light turns off.
Lio said:
Does anybody charge their TyTN in car via a usb car charger. I use a usb car charger for different devices: Bluetooth headset, gps reciever...
I also used it to recharge my Blue Angel.
Unfortunately I can't charge the TyTN. Has anyone had the same issue?
The charger says that it can charge 1Ampere. The original home charger is also 1 Ampere, so I don't understand why it doesn't work.
Have tried it with two different usb car chargers and both have the same problem: It charges only if TyTN is turned off. When I switch it on then the red charging light turns off.
Click to expand...
Click to collapse
I had similar problems except I didn't need to swithc the pda. I saw the usb charge couldn't charge completly or it was very slow to charge if I had screen with light or TomTom running.
I solved using a diferent charger, that generates 220 volts. It has 140W and costs around 40 euro.
Do you have a link, a picture or a brand name to this product?
Lio said:
Does anybody charge their TyTN in car via a usb car charger. I use a usb car charger for different devices: Bluetooth headset, gps reciever...
I also used it to recharge my Blue Angel.
Unfortunately I can't charge the TyTN. Has anyone had the same issue?
The charger says that it can charge 1Ampere. The original home charger is also 1 Ampere, so I don't understand why it doesn't work.
Have tried it with two different usb car chargers and both have the same problem: It charges only if TyTN is turned off. When I switch it on then the red charging light turns off.
Click to expand...
Click to collapse
Same problem.
I was told by the dealer that it's a matter o cable (the pins in the cable)
the one sold with the device is fine just to sync and charge from pc, but can't charge through car adapter.
I'm bought a new cable (arriving next week): it's a double cable, one side for pc, other side for charging.
if it works, I'll post..
bye
I'm afraid to tell you that your new cable will not work. You were not well informed. I am sure that it is not a cable problem, but a charger problem. According to me the power output expressed in Amps (Ampere) is not strong enough even though it says that it's 1 Ampere as the mains charger. Those cheap chinese made chargers are not strong enough for the TyTN. That's why it charges when the TyTN is switched off but as soon as you switch it on, the power output from usb car charger is not enough.
Lio said:
I'm afraid to tell you that your new cable will not work. You were not well informed. I am sure that it is not a cable problem, but a charger problem. According to me the power output expressed in Amps (Ampere) is not strong enough even though it says that it's 1 Ampere as the mains charger. Those cheap chinese made chargers are not strong enough for the TyTN. That's why it charges when the TyTN is switched off but as soon as you switch it on, the power output from usb car charger is not enough.
Click to expand...
Click to collapse
mmhhh, I'll wait the new cable, hoping it works ;.)
the fact is that with original cable the car adapter doesn't charge even if the device is off..
same thing with a 220V usb adapter.
only the original kit seems to work..
I'll tell you in a few days
btw: both adapter are chinese ;-)
Nope, Lio is right on this one. The car charger simply doesn't supply enough juice to charge the TyTN. O2 Exec users have had this problem for ages.
I use the charger bought from the Orange shop for the spv c500. Works fine, if a little slowly.
There are strange things happening!
The USB cable should not enter in to the equation as USB is USB and the pins should be wired correctly.
Here is what I have found.
If charging in the car all is ok until the power is cut, then it only charges whilst off until the TYTN is soft reset. This looks to me like there is a software / powercontroller confilct. It is a little confusing but see the scenarios below;
Soft reset TYTN, leave it off. Plug in to cigarette charger, turn TYTN on/off all is fine.
Turn off TYTN and unplug, all is fine, plug back in (TYTN off) will still charge when TYTN on.
Turn TYTN on, unplug, will not charge whilst on anymore until soft reset but will charge whilst off.
This is the same if I turn the ignition to power the lightere socket.
However, another spanner in the works, if I pull out the charger even with the device off and re-insert it it stops charging until soft reset.
What seemd to work best was to do a soft reset whilst the unit is charging and powered on. After that I was able to unplug, plug in even when the unit was on, turn ignition off/on etc... It only reverted back to not charging when I removed the charger from the socket as it was charging.
These are my findings and I presume each charger will be different.
I presume whatever electronics are in the chargers also causes problems. I have tried 2 USB and one fully wired charger and it is the same with all. I know for a fact that at least 2 of them have overcharge circuitry built in but do not think the 3rd has, I also presume the TYTN also has so perhaps there is some conflict here also.
I do know that there are car chargers specifically for the TYTN so will try one of those and see if it solves the problem. (anyone tried one?)
Anyone with more ideas please let us know.
What seemd to work best was to do a soft reset whilst the unit is charging and powered on. After that I was able to unplug, plug in even when the unit was on, turn ignition off/on etc... It only reverted back to not charging when I removed the charger from the socket as it was charging.
Click to expand...
Click to collapse
Thank you for this tip. Now I can recharge in car thanks to u! :lol: I tried it and it works.
Great Lio,
Glad it worked. When you get a chance, could you pull out the chrger from the lighter socket as it is charging and let me know if it then stops charging again. I just want to see if the same happens to you as it did to me. It will work again once you soft reset whilst plugged in.
Thanks.
cieplowski said:
What seemd to work best was to do a soft reset whilst the unit is charging and powered on.
Click to expand...
Click to collapse
I believe this trick should go to FAQ.
A week ago I visited a lot of shops trying many mains-to-USB charges to no avail. I already had one for MP3 player that didn't work too.
After reading your post, I connected the original charger and SRed. Now that another charger works!
Can't imagine what's the reason but it really works.
cieplowski said:
could you pull out the chrger from the lighter socket as it is charging and let me know if it then stops charging again.
Click to expand...
Click to collapse
Yes, it does exactly like you've described.
Originally Posted by cieplowski
could you pull out the chrger from the lighter socket as it is charging and let me know if it then stops charging again.
Click to expand...
Click to collapse
Same here.
Is this a bug in the software ?
I found this : http://www.expansys.com/product.asp?code=138248
I think it should work fine, I am not sure.
"I found this : http://www.expansys.com/product.asp?code=138248"
Could you contact them and ask about its power rating and whether it is susceptible to the problem/bug?
here I am again.
finally I got the new cable and... surprise... IT WORKS
I used it without soft resetting the device and it worked
I tryed soft resetting the device and it worked
But the biggest surprise of all is that after using the new cable, also the old one started working ..
i guess there must have been a software bug that has gone (hope forever) away.
For those interested, the new cable is a double one: one side is usb, other two sides are charge connector and hotsync connector.
pix09 said:
here I am again.
finally I got the new cable and... surprise... IT WORKS
I used it without soft resetting the device and it worked
I tryed soft resetting the device and it worked
But the biggest surprise of all is that after using the new cable, also the old one started working ..
i guess there must have been a software bug that has gone (hope forever) away.
For those interested, the new cable is a double one: one side is usb, other two sides are charge connector and hotsync connector.
Click to expand...
Click to collapse
have you got a web link for this one you now have?
friend of mine has apparently got a tytn, I'll pick up a 1.2A USB / Car adapter this weekend and see what happens, hopefully the extra .2A should enable the tytn / exec to charge normally in a car.
Having had an exec for a while I will agree that most 12v/USB adapters struggle with the exec, but hopefully this will make the difference, if it works I will post the details of the company selling them (they are listed for the PSP)
I haven't had this trouble. Just got my new MDA Vario II and I've used it with my old MDA compact mains charger and the car USB charger and it works with no problems.
Tried it with the Vario II on and off and have a charging light on both.

[Q] dropped phone. slow charging!

the other day my phone feel of the couch while pluggd into the pc. it stopped chargibg and woukd not connext to pc.
i lost the original cable so ive been using a mini to micro usb adapter for an old cable i had for my g1 which hss worked perfectly.
thought i had broke the sockey on thr phone. had a tmobile shop check it with there cable. it was fine. so boyght a microusb cable.
everything seemed fine. charge light. usb drive worked internet tether. but then the phone ran out of battety while usb tethering. it always stays at 100% before.
with the battery low it woukf rrstart every minute whole plugged into original chargrr.
its charging but very slowly. 15% in 2 hours. checked battery pins. seems fine. i dkd manage to get 37% charge in 30 monutes once irh the phone off.
the phone doesnt even get warm while plugged in. it used to get pretty warm when cuargibg.
tried hard reset. trief reflashig rom. it knows wall charger is in. says charging orange charge light.. but it charges sooo slow...
im stuck. is this a repair jobk
Just got home and tried the new cable in my home PC. ive already lost 1% battery in the space of a few miutes usb tethering....
make sure you have the "don't charge the phone while connected via usb" unchecked. Other than that, sounds like a hardware problem.
i cant find that setting, only do not charge when the phone is on., which is off. Ive just noticed something else. the brightness setting for AC power effects the brigthness when connected to usb. I dont think it knows the difference between ac and usb anymore.
veda_sticks said:
i cant find that setting, only do not charge when the phone is on., which is off. Ive just noticed something else. the brightness setting for AC power effects the brigthness when connected to usb. I dont think it knows the difference between ac and usb anymore.
Click to expand...
Click to collapse
when you plug it into the wall, do you get the menu for: Activesync, Disk Drive, Internet Sharing? If so, then this is true. Really sounds like a hardware issue. I would take it back in and see if they can replace the port.
nope, when i plug it into the wall, no menu. it does seem to know the difference between usb and power. as using the option "when phone is on, do not charge when the pohone is connected to pc" has no effect with the wall charger.
I tried a different wall charger. I have a travel charger which is only rated at 500ma instead of 1amp and it charges the same. I was able to get 100% overnight. woke up after 8 hours to see the green light on, it stays at 100% with the wall charger as long as you leave it alone.
back into the computer, tethering and im loosing battery as if it wasnt connected.
Looks like ill have to dig out my insurance as its not a warranty repair (and also the water damage stickers are red, due to it being dropped in the toilete 3 months ago)
hmmm interesting. phone has been in charger overnight and was at 100% when i got up, pluigged into pc for usb tethering, despite battery dropping the green light is still on.
Ive done some searches on usb micro cables and came across people having problems with some data cables with charging, as some cables cannot cope with the large current required, but they mentioned that there phone would say this and i have seen that on my phone before with my front usb ports on my computer.
Im gonna order a microusb adabter as i have 2 high qualiity usb-mini usb cables from a G1 (which was usbed with an adapter with no problems) and 1 from a tmobile mda varia, same cable.
This has now been solved. After closer examination of the USB mini to micro adapter, it apeared that the 2 outside pins (which are for charging) had been flattened. Looking at the adapter, you could only see the 3 middle pins, but with a torch you could see that the oiutside pins were compelty flat. from droping the phone its oviously twisted the connector resultinin in flatting those pins.
I went back to tesco and bought the same USB kit which comes with a mini USB cable and several converters to fit different phones.
AFter hooking up the cable and micro usb adapter to my PC, my phone was within minutes showing increase in battery charge. After a few hours with usb tethering enabled and watching videos online im up 2-%.
The cable i bought for £7.99 which is micro usb though doesnt mention any HTC phones (mostly nokia) will connect perfectly for data transfer and the phone appears to say its charging. It looses power suggesting insuficient charge current. Maybe its the rom im using disables thsi warning as i have seen this before when i connected my phone to the front usb ports, but it works fine with the back.
So, it seems i have not damaged anything apart from the usb adapter i was using.
All is well, and im charging at a fast rate with USB while tethering.
Please close this trhead as it is resolved.
Final update. After several days i have been usb tethering and charging absolutly fine. Using 1amp charger charges fast!
Even from a dead battery can plug into usb and have the phone bootup.
Sent from my HTC HD2 using XDA App

[SOLVED] Atrix will not power on, green light flashes, plugged in and.... nothing!

Went to sleep last night with my Atrix plugged in as I normally have had all my phones, was playing with it right before I went to sleep and everything worked just fine, woke up this morning and the phone will not power on!
First tried to power it on unplugged and the green light flashed for 2 seconds, and nothing happened. Okay, weird, but I'll go with it. Plugged it in, and the green light stays on now until I press the power button! Once pressed, it flashes off, flashes on for 2 seconds and stays off. Nice. I thought the green light meant it was fully charged - when I woke up this morning, it had no green light on, but it was plugged in just fine all night - grabbed my Jawbone ERA and plugged it in to the charger I had the Atrix connected to and it started charging right away, so I know it works....
Pulled the battery, tried plugging it in and power it on without the battery. Nothing. Tried putting in the battery and plugging it in again to "jump start it" as I had done yesterday when I first got it - apparently you can't just charge the thing when connected to a laptop if the phone is off, it will power on even if you power it off again! Nothing.
What the hell happened in it's sleep? I KNOW rooting it didn't cause sleep death.... This thing doesn't have a custom ROM or any undervoltage adjustments, so why the hell is it acting up??? Damnit, right when I got EVERYTHING set up the way I wanted it too.... can't bring it in to the store and give it up with all my personal stuff on there now, I need this thing to power on to wipe it first!!! I'm leaving it connected to the laptop with the green light on for a while and will see what happens in an hour or so....
EDIT - just searched for and tried to hard reset the phone from this thread, the phone still won't even power on to get to the recovery screen!!!
UPDATE - see below and use the SUPPLIED Moto AC charger or at least one with over 5.0V - NOT a PC and NOT a USB hub!
use the charger that came with the phone. My old HTC ones won't charge the phone for some reason. I bet your battery is just dead.
Did you use the provided charger? I tried plugging my Atrix in to the charger I used for my N1, and found that it did not provide enough current. With the old charger, after the phone died, I had similar symptoms where the green light would flash but phone would not come on. Plugged it in with the Moto provided charger, and 5 minutes later all was good...
I had the same problem. Thought I was gonna have to take it back to the store. I don't know what the problem was but I took the battery out for 5 minutes. Then I plugged it into the wall charger(wouldn't work with PC). I didn't turn it on for 30 min, just left it on the charger. Then I hit the volume rocker and it showed the battery charging symbol which it didn't do before. And then I was able to power it on
Same thing here. I purposely drained my battery on the first use. Plugged the usb cable into the PC and nothing. Same blinking green light with no response. I also thought I'd have to return the phone. Then for S & Gs I plugged it into the wall charger and it came to life. Once I got the battery charged a little bit I plugged it into the PC and it started to charge again. Don't know why, but it worked.
Have been running around the house trying to find valid outlets, and that does indeed appear to be the problem. I found it out the hard way though, should have kept an eye on the thread - used a power outlet instead of a PC USB connection and the screen fired right up! Yes, the phone showed the battery with 0% in it, but at least the screen finally came on!
How I have my phone set up normally is connected to my charging valet on my dresser, connected with a 15 foot USB cable that plugs directly into my desktop. Since the extension is good for just one USB connection, I have that connected to a USB hub and then a MicroUSB cable connects my phone from there. The Captivate, and all the other phones I've ever used, not to mention my Zune and Jawbone ERA, all eat that up and have no issues since the USB hub is powered not by the computer (seven USB cables is just too many for a single PC connection) but by the power outlet in the charging valet. I wonder if the hub is distributing the power requirement for each device and the Atrix needs more than others.
I also figured out that the Moto charger has a 5.1V output on it, as does my Jawbone AC charger. Now I need to start making sure that my each one of my chargers in the cars I own has that same type amount of juice too! You go up 29% in battery capacity and so do the requirements to charge it, huh?
Thanks for all the help, marking this SOLVED....
I used the charger in my bedroom that I've used for the Captivate and others before it and it didn't provide enough juice to charge the Atrix. It quickly switched between charging and not charging. I still had 40% battery showing when I woke up though which was nice. It had been off of charge since 10am yesterday.
Plugged it into an HTC charger and it's fine. The one that didn't work is not a modular charger so the power cord is hard wired to the plug.
Alright, a quick update.... Got the phone charged to 100% while it was off and plugged into the AC outlet with the Moto charger. Put my SIM card back in it - couldn't be without a phone all day! - and fired up the Atrix. Went to Battery Info to see what the status is and while plugged into my USB hub, it says
Battery Status: Discharging
Power plug: USB
....
Battery Voltage: 4124 mV (or 4.124V)
Click to expand...
Click to collapse
What the hell? Then I went right after that and plugged it into the Moto AC charger, it says:
Battery Status: Full
Power plug: AC
....
Battery Voltage: 4207 mV (or 4.207V)
Click to expand...
Click to collapse
Why are POWERED USB hubs and PCs not strong enough to charge the phone? I tried ALL my outlets in my vehicles just now and they ALL show full battery status and plugged into AC! Who screwed this up????
GarciaM25 said:
Why are POWERED USB hubs and PCs not strong enough to charge the phone? I tried ALL my outlets in my vehicles just now and they ALL show full battery status and plugged into AC! Who screwed this up????
Click to expand...
Click to collapse
Did you download the PC Charging Drivers that Motorola requires you to have in order to charge via PC and USB cable? If not, look here.
Battleship said:
Did you download the PC Charging Drivers that Motorola requires you to have in order to charge via PC and USB cable? If not, look here.
Click to expand...
Click to collapse
Wait, you have to have specific drivers on the PC so that the phone will allow a power cable (let's not even worry about it being a USB cable for a second) to charge the phone properly? I have the Motorola Media Link software installed, and that has a ton of drivers on it, that wasn't enough? MORE drivers are required to charge a cell phone? This is madness!
Sorry about the necromancy, but had this problem myself but it is NOT due to a lack of voltage. Thought I'd actually solve this, the problem is CURRENT.
USB2 ports will only ever supply 500ma which simply isn't enough to charge the atrix when it's dead. USB2 powered hubs won't supply any more than this either to meet the USB2 spec. The fact that the AC adapter works is because they tend to have a higher output current in the region of 1-2 amps (you may notice the phone, or any other device for that matter, charges faster with AC adapters for this reason).
On a similar note, cheap car chargers only output 500ma. I know with my desire I can have it plugged in and it charges, but if I use GPS it actually draws more current than it can charge at resulting in the battery draining (albeit, slowly).
So, make sure you have a higher current AC/Car charger, or alternatively, plug it into a USB3 port to charge as USB3 spec allows 900ma (some mobos output up to 1A) which is enough to charge the Atrix.
Stewge said:
Sorry about the necromancy, but had this problem myself but it is NOT due to a lack of voltage. Thought I'd actually solve this, the problem is CURRENT.
Click to expand...
Click to collapse
Hey, no problem, if there's something I misstated, then please, correct it!
Stewge said:
So, make sure you have a higher current AC/Car charger, or alternatively, plug it into a USB3 port to charge as USB3 spec allows 900ma (some mobos output up to 1A) which is enough to charge the Atrix.
Click to expand...
Click to collapse
Not sure about this..... It's been about a year since I got all my USB3.0 gear, and I was super excited about it because I thought that my phone would charge ridiculously fast because of the added output, but I remember reading that 3.0 uses extra pins and those pins account for the added voltage and bandwidth of the cable - we don't have those extra pins when you step down from 3.0 to 2.0, so we lose the ability to charge devices faster as a result. I don't know if I actually proved that theory, but after I read up enough on it, I thought I just didn't have to with that knowledge..... again, correct me if I'm wrong, I've got a lot of 3.0 gear here!!!
GarciaM25 said:
Not sure about this..... It's been about a year since I got all my USB3.0 gear, and I was super excited about it because I thought that my phone would charge ridiculously fast because of the added output, but I remember reading that 3.0 uses extra pins and those pins account for the added voltage and bandwidth of the cable - we don't have those extra pins when you step down from 3.0 to 2.0, so we lose the ability to charge devices faster as a result. I don't know if I actually proved that theory, but after I read up enough on it, I thought I just didn't have to with that knowledge..... again, correct me if I'm wrong, I've got a lot of 3.0 gear here!!!
Click to expand...
Click to collapse
There are indeed extra pins in the USB3 standard but these are to transmit data only. The original USB2 data pins are only there for legacy support and USB3 transmissions use the extra lines. There's still only the 1 VBUS pin which supplies the +5V power. There's also no harm in offering higher current on the connection as a device will only ever draw as much current as it needs until it tops out the supplier, not the other way round
EDIT: Another solution could be to use a splitter cable (common with 2.5" drives)so you can draw from 2 ports, but with a micro connector. I've never actually seen one with USB micro but a quick look on ebay says they do exist
nsaia said:
Same thing here. I purposely drained my battery on the first use. Plugged the usb cable into the PC and nothing. Same blinking green light with no response. I also thought I'd have to return the phone. Then for S & Gs I plugged it into the wall charger and it came to life. Once I got the battery charged a little bit I plugged it into the PC and it started to charge again. Don't know why, but it worked.
Click to expand...
Click to collapse
Hi, can I know that when you plug it into the wall charger, is there any light on? Mine has no light on when plug to wall charger. But I can get the light green when plug into PC USB. Can you share that?
cscmf99 said:
Hi, can I know that when you plug it into the wall charger, is there any light on? Mine has no light on when plug to wall charger. But I can get the light green when plug into PC USB. Can you share that?
Click to expand...
Click to collapse
This is the exact same issue that I am facing now. Did you ever manage to find a solution for this problem?
atrix 4g not coming on
Is there any real fix to this issue i have search high and low and all i am seeing people talking about the battery id dead ... i have two battery that is fully charger and the phone still not coming up.
Hi all, sorry that im posting after two years ago but i am facing exactly the same problem, but i plugged it in my USB port, wich i think its a usb2, and i got the screen on but the cellphone did not say charging instead of that was connect your charger, and it was lower than 3% then it turned off. What can it be a solution??
None of the avobe solutions worked?
Which rom/kernel are you using?
I too have this same issue. My Atrix won't come on. I have 2 of the same phone. I tried the charger and cable from both phones. Neither work. When I first plug it it, the green light comes on for a few seconds then it goes out. I even opened the phone and removed the battery. Used a voltage tested and found my battery has 3.7 volts. Thats almost 100% charge. So it not a problem of power. I plugged the phone to my computer and same green light for a few seconds then gone. Won't do anything. No battery display or anything. I even did the simulated battery removal procedure. Didn't work. Is there anything else I can try? Can't get to recovery mode without display unless someone has a fix for that?

Categories

Resources