Several people have asked my questions regarding the connector on that adapter that comes with the XDA II and allows you to use the AC/DC charger without the cradle. :idea:
THis info is quite usefull, also if you are building your own usb sync/charge cable.
First off, the AC/DC charger is rated at 5V and 1 amp, though it has a no-lead voltage around 6.3V (GND is on the outside of the charger plug, +5 Volts on the inside hole/pin). You don't really need the 1 amp to charge the XDA, it's just there so that you can also charge the second battery, which you can insert into the cradle .
Now for the Pinout on the adapter. See here for more info on the XDA connector: http://www.xda-developers.com/connectors/
Pin 20,21,22: +5 Volt
Pin 16,17,18: GND
Pin 5: GND
Shorting the lines across three pins provides current load leveling for charging.
Now for the usb sync/charge cable. Here we need to add the following pins:
Pin 2: GND (my usb charge/sync cable does not connect to pin 5, just pin 2, so these are probably shorted inside the XDA)
Pin 13: +5 Volt
Pin 14: USB Data H(+)
Pin 15: USB Data L (-)
From the design, it becomes evident that the pins 16-18/20-22 are only used for the charge circuitry. There is probably a current sensing circuit in this set.
Pins 2 and 5 are the digital ground. Pin 13 powers the usb circuitry, also waking the XDA and starting AxctiveSync.
BTW: The PDA will only charge if at least one of the pins 16,17,or 18 isconnected to ground and at least one of the pins 20,21 or 22 are connected to +5V. Otherwise, though the XDA may say it is charging, it will actually just drain the battery.
[email protected] said:
Several people have asked my questions regarding the connector on that adapter that comes with the XDA II and allows you to use the AC/DC charger without the cradle. :idea:
THis info is quite usefull, also if you are building your own usb sync/charge cable.
First off, the AC/DC charger is rated at 5V and 1 amp, though it has a no-lead voltage around 6.3V (GND is on the outside of the charger plug, +5 Volts on the inside hole/pin). You don't really need the 1 amp to charge the XDA, it's just there so that you can also charge the second battery, which you can insert into the cradle .
Now for the Pinout on the adapter. See here for more info on the XDA connector: http://www.xda-developers.com/connectors/
Pin 20,21,22: +5 Volt
Pin 16,17,18: GND
Pin 5: GND
Shorting the lines across three pins provides current load leveling for charging.
Now for the usb sync/charge cable. Here we need to add the following pins:
Pin 2: GND (my usb charge/sync cable does not connect to pin 5, just pin 2, so these are probably shorted inside the XDA)
Pin 13: +5 Volt
Pin 14: USB Data H(+)
Pin 15: USB Data L (-)
From the design, it becomes evident that the pins 16-18/20-22 are only used for the charge circuitry. There is probably a current sensing circuit in this set.
Pins 2 and 5 are the digital ground. Pin 13 powers the usb circuitry, also waking the XDA and starting AxctiveSync.
BTW: The PDA will only charge if at least one of the pins 16,17,or 18 isconnected to ground and at least one of the pins 20,21 or 22 are connected to +5V. Otherwise, though the XDA may say it is charging, it will actually just drain the battery.
Click to expand...
Click to collapse
I just received my iMate XDA2. I have a charging connector/USB cable combo left over from my XDA1. I inserted it into the XDA2 and the amber glowed (charging) and got to green (charged). Your comment about if pins aren't grounded, unit appears to be charging but actually isn't. Is there a way to confirm the charge/USB combo is actually okay for my XDA2?
from what ive heard/been reading the XDA 2 charger kicks out 2Amp max not 1A
and cahrging via usb will drain your battery more then it will charge it?
so i dont think modding the cradel to charge via usb will do nothing but drain your xda2 whilst sitting on it as it will be lit up and activesync will be open
gaz
XDA2 Charging
gazzaman2k said:
from what ive heard/been reading the XDA 2 charger kicks out 2Amp max not 1A
and cahrging via usb will drain your battery more then it will charge it?
so i dont think modding the cradel to charge via usb will do nothing but drain your xda2 whilst sitting on it as it will be lit up and activesync will be open
gaz
Click to expand...
Click to collapse
The charger is rated actually at 1 amp and for purposes of charging the 2nd battery in the cradle if one had a spare. Thus 500mA or less will charge the unit. It did mine.
oh how come on xpansys their chargers kick out 2A :? :shock:
Just for those without an electrical engineering degree:
Important for charging is the voltage, not the current. Sure, a large charge current could charge the battery faster, but even then only if the charge voltage were high enough. And then, these batteries are highly sensitive beasts, requiring a complex charge strategy - if the current is too high they just blow up! If the current is low, it just takes longer.
The MDA/XDA has an intelligent charge circuit, which is software controlled and most likely senses and controls the actual charge current. When doing a "full blow" charge it probably limits the current to around 0.5 amps (though I haven't measured this), but will decrease this current considerably once the battery gets nearly full (otherwise we would cook the battery).
Aes, you can charge the XDA without problems from the usb bus. The only caveat: check that cable -see above!. I do it all the time and in fact, have often gone into internet cafe's whilst on the road just to charge my XDA (cause the charger was defect).
And yes, you can see if the battery is really charging: if the light is on and the %-age full increases over a few minutes, then the battery is really charging.
ah cool cheers for clearing that up then lol so it does work my bad :\ just thought it was weird how their cahrgers are 2A meaning it will be charged in like 2 seconds like :\ thats what confused me
gazzaman2k said:
oh how come on xpansys their chargers kick out 2A :? :shock:
Click to expand...
Click to collapse
The rated output is 5V / 2A for the XDA2 AC adapter. My math was a little in error. If you don't have a 2nd battery charging in the cradle, than a 5V / 1A charger would suffice. Howver, it did a great job of charging just thru the USB cable. I can't remember off the top of my head what a USB line is capable of - 500mA??
Sorry for the confusion.
i've got the solution!!!
Hi everyone, i think i have the solution of XDA II not charging on USB port using XDA sync/charger cable... if u want the XDA II charging from USB, just open up the connector and disconnect the 20,21,22 pins from USB bus power line. After that, u can use XDA sync/charge cable in any USB port and they will sync and charge the XDA II.
How i know this??? 'cos i "reverse-engineered" the connection of the cradle... i was wondered y using the same usb port, the cradle can charge while the sync cable can't... so i test all the connection of the cradle and found that pin 20,21,22 and also pin 2 is disconnect. The pin 20,21,22 only connected to power when u plug in the DC into the cradle. This mean that pin 20,21,22 connected to DC (+) while the pin 2 is connected to DC (-) only when u plug in the external DC supply to the cradle.
I've modified my XDA sync cable and now i can charge my XDA II on any USB port even from my laptop. Hope this helps for those who purchased the XDA sync/charge cable to use with XDA II. :wink:
To those who like to go further....
The only problem that i can c now is that if u modified the cable and u use it with a car adaptor, will it charge the XDA II as fast as possible like when u plug in the external DC supply? OR will it only trickle charge the XDA II as using USB port? i really don't know 'cos i don't have a car here with me to try it out... but i think it will only trickle charge the XDA II only...
Therefore, to those who like to get charge faster in the car, u can install a small switch connected between the USB power line and pin 20,21,22. By switching the switch, u can choose between trickle charge and fast charge. 8)
Re: i've got the solution!!!
[so said:
hai®]Hi everyone, i think i have the solution of XDA II not charging on USB port using XDA sync/charger cable... if u want the XDA II charging from USB, just open up the connector and disconnect the 20,21,22 pins from USB bus power line. After that, u can use XDA sync/charge cable in any USB port and they will sync and charge the XDA II.
How i know this??? 'cos i "reverse-engineered" the connection of the cradle... i was wondered y using the same usb port, the cradle can charge while the sync cable can't... so i test all the connection of the cradle and found that pin 20,21,22 and also pin 2 is disconnect. The pin 20,21,22 only connected to power when u plug in the DC into the cradle. This mean that pin 20,21,22 connected to DC (+) while the pin 2 is connected to DC (-) only when u plug in the external DC supply to the cradle.
I've modified my XDA sync cable and now i can charge my XDA II on any USB port even from my laptop. Hope this helps for those who purchased the XDA sync/charge cable to use with XDA II. :wink:
To those who like to go further....
The only problem that i can c now is that if u modified the cable and u use it with a car adaptor, will it charge the XDA II as fast as possible like when u plug in the external DC supply? OR will it only trickle charge the XDA II as using USB port? i really don't know 'cos i don't have a car here with me to try it out... but i think it will only trickle charge the XDA II only...
Therefore, to those who like to get charge faster in the car, u can install a small switch connected between the USB power line and pin 20,21,22. By switching the switch, u can choose between trickle charge and fast charge. 8)
Click to expand...
Click to collapse
I would be most carefull about this solution. I know that the charge-light will go on, but I'm not sure it will actually charge the battery (just check after 5-10 minutes if the batteries have really charged.
As you noted, the external charger goes across pins 20-22 (+5V) and 16-18(GND). This is where the XDA is meant to charge the battery - and it will do so under any conditions if the +5V is applied here. Pin 13 is meant to power the usb circuitry and it wakes the XDA II up, starting ActiveSync at the same time, it is not meant to charge the battery.
Hi, i've checked and tried on few machines... it really works... trust me... maybe the charging circuit on XDA II is different from XDA???
And as i said in the post b4, the connection is "copied" from the original cradle, so it's absolutely correct unless i did something wrong on my side... but well i've double checked it... :wink:
If u've some time to spare, can u pls check the connection of the cradle as well? it's good to verify so that all XDA II users will benefit from this... Thanks!
Should work, since I only use the cradle without power supply to charge my MDA II. Full or empty doesn't matter, the MDA II always gets fully charged.
Didn't measure the pin layout yet in my cradle.
Upgrading from T-mobile pocket pc phone edition to imate
In reveiewing this thread - it appears that I will be able to use my car charging cradle, and my USB chrger/synch cable, perhaps with some minor pin adjustments.
I would like to know if anyone has experienced any damage/ problems relating to using xda1 accessories with the xda2.
Also, I have the thumb-keyboard, and wonder if anyone has tried using the xda1 thumbboard with the xda2. Would like to avoid re-buying all my accessories if possible. Help is appreciated.
Thom Hall
Upgrading from T-mobile pocket pc phone edition to imate
In reveiewing this thread - it appears that I will be able to use my car charging cradle, and my USB chrger/synch cable, perhaps with some minor pin adjustments.
I would like to know if anyone has experienced any damage/ problems relating to using xda1 accessories with the xda2.
Also, I have the thumb-keyboard, and wonder if anyone has tried using the xda1 thumbboard with the xda2. Would like to avoid re-buying all my accessories if possible. Help is appreciated.
Thom Hall
Re: i've got the solution!!!
[so said:
hai®]Hi everyone, i think i have the solution of XDA II not charging on USB port using XDA sync/charger cable... if u want the XDA II charging from USB, just open up the connector and disconnect the 20,21,22 pins from USB bus power line. After that, u can use XDA sync/charge cable in any USB port and they will sync and charge the XDA II.
How i know this??? 'cos i "reverse-engineered" the connection of the cradle... i was wondered y using the same usb port, the cradle can charge while the sync cable can't... so i test all the connection of the cradle and found that pin 20,21,22 and also pin 2 is disconnect. The pin 20,21,22 only connected to power when u plug in the DC into the cradle. This mean that pin 20,21,22 connected to DC (+) while the pin 2 is connected to DC (-) only when u plug in the external DC supply to the cradle.
I've modified my XDA sync cable and now i can charge my XDA II on any USB port even from my laptop. Hope this helps for those who purchased the XDA sync/charge cable to use with XDA II. :wink:
To those who like to go further....
The only problem that i can c now is that if u modified the cable and u use it with a car adaptor, will it charge the XDA II as fast as possible like when u plug in the external DC supply? OR will it only trickle charge the XDA II as using USB port? i really don't know 'cos i don't have a car here with me to try it out... but i think it will only trickle charge the XDA II only...
Therefore, to those who like to get charge faster in the car, u can install a small switch connected between the USB power line and pin 20,21,22. By switching the switch, u can choose between trickle charge and fast charge. 8)
Click to expand...
Click to collapse
Just to check with you, i am going to test my car charger....are you saying that the +ve needs to be connected to either one of the pins (#20,21,22) and -ve to gnd pins (16,17,18).
Is all the gnd #2,#5, #16, #17 & #18 shorted? and pin#20, 21 and 22 shorted as well?
Thanks. :?:
Hi i've made a "not-so-nice" layout... which i think explained better than myself... :lol:
The lower part showed the connection needs to sync and charge with USB only. The upper part become valid when u plug in the external DC into the cradle. I do think that pins 2,5 is somehow shorted internally.
So, if u test ur car charger, i think pins 20,21,22 should shorted with pin 13 to the power(+) while pins 2,5,16,17,18 are shorted to ground(-).
The XDA car charger shouldn't be a problem to charge the XDA II... it's just the XDA USB sync and charge cable that causing the non-charge bug on XDA II...
Hope this clear all the confusion... :wink:
Best regards,
[so said:
hai®]Hi i've made a "not-so-nice" layout... which i think explained better than myself... :lol:
The lower part showed the connection needs to sync and charge with USB only. The upper part become valid when u plug in the external DC into the cradle. I do think that pins 2,5 is somehow shorted internally.
So, if u test ur car charger, i think pins 20,21,22 should shorted with pin 13 to the power(+) while pins 2,5,16,17,18 are shorted to ground(-).
The XDA car charger shouldn't be a problem to charge the XDA II... it's just the XDA USB sync and charge cable that causing the non-charge bug on XDA II...
Hope this clear all the confusion... :wink:
Thanks for the clarification. As i am not able to tell where i should start count on the pin and also which leg it belongs to, can you shed some light on this.
I have attached 2 pics of cable end.
Best regards,
Click to expand...
Click to collapse
Anyway to modify a Boxwave cable for use with an XDA II?
Have read the posts with interest. Can someone confirm what needs to be done to get a USB cable to charge.
Many thanks
o2xda2 said:
[so said:
hai®]Hi i've made a "not-so-nice" layout... which i think explained better than myself... :lol:
The lower part showed the connection needs to sync and charge with USB only. The upper part become valid when u plug in the external DC into the cradle. I do think that pins 2,5 is somehow shorted internally.
So, if u test ur car charger, i think pins 20,21,22 should shorted with pin 13 to the power(+) while pins 2,5,16,17,18 are shorted to ground(-).
The XDA car charger shouldn't be a problem to charge the XDA II... it's just the XDA USB sync and charge cable that causing the non-charge bug on XDA II...
Hope this clear all the confusion... :wink:
Thanks for the clarification. As i am not able to tell where i should start count on the pin and also which leg it belongs to, can you shed some light on this.
I have attached 2 pics of cable end.
Best regards,
Click to expand...
Click to collapse
Click to expand...
Click to collapse
The odd pins (1,3,5...21) are located on one side, the even pins (2,4,6...22) on the other side. Your left picture shows the even and the right picture the odd pins.
Fidl
Hi all,
I'm sure this will infuriate those guys who are trying their best to explain this to us thickies....but.....
I have purchased the L'il Sync cable from eXpansys (from PPCTech I think) and, obviously, it won't charge the XDA-II.
Now I have a soldering iron, and I'm prepared to use it, but I need to know EXACTLY which wires to chop, or where to solder. I'm still having trouble woking out whether to solder pin 16,17 or 18 to somewhere - or whether to cut other wires off. I fact - I don't really know which pin is which!
I know you guys have the know-how - but you need to make it really simple for me to understand!
Please help!!
Thanks,
MB
Hello,
I have a VODAFONE BRANDED, HTC TOUCH PRO phone and it has started playing up suddenly.
It would charge when connected to a pc, car charger using a usb cable or using any mini usb charger. all of a sudden it has stopped charging with any other charger except its own htc wall plug charger.
I have tried a hard reset and still no joy.
the charge via usb is unchecked and it charges when connected to a PC.
However it doesnt charge with the following methods which used to work earlier
1. Motorola charger - mini usb
2. Using a usb cable and a wall output with usb
3. car charger with a usb output.
I have a htc audio out connecter. when i connect the connector, and then charge via usb it works in the car and from the wall.
is it something to do with the pins on the cables and on the device??
I used to get a menu asking the sort of connection that i needed (activesysnc, data etc) when connecting to the car charger earlier, it does not come anymore.
Its frustrating cos i travel a lot and find chrarging with usb cables the most convenint in the car, office or else where.
Could it be damaged pins on the device??
Any ideas/suggestions will be highly appreciated.
Many thanks
Sal
saleemarshad said:
Hello,
I have a VODAFONE BRANDED, HTC TOUCH PRO phone and it has started playing up suddenly.
It would charge when connected to a pc, car charger using a usb cable or using any mini usb charger. all of a sudden it has stopped charging with any other charger except its own htc wall plug charger.
I have tried a hard reset and still no joy.
the charge via usb is unchecked and it charges when connected to a PC.
However it doesnt charge with the following methods which used to work earlier
1. Motorola charger - mini usb
2. Using a usb cable and a wall output with usb
3. car charger with a usb output.
I have a htc audio out connecter. when i connect the connector, and then charge via usb it works in the car and from the wall.
is it something to do with the pins on the cables and on the device??
I used to get a menu asking the sort of connection that i needed (activesysnc, data etc) when connecting to the car charger earlier, it does not come anymore.
Its frustrating cos i travel a lot and find chrarging with usb cables the most convenint in the car, office or else where.
Could it be damaged pins on the device??
Any ideas/suggestions will be highly appreciated.
Many thanks
Sal
Click to expand...
Click to collapse
Its prolly pins because the mini USB is not a perfect fit for the HTC audio jack. I would use your HTC adaptor and run the USB through that.
Something might be blocking a less than 1000mah income charge..
On low battery (as in dead-battery) you definately need a wall-plug charger. Under normal conditions the USB car charger or laptop would be fine.
Since you hinted the use of the audio jack I most likely is a bad connection on the USB pins. Did you take a look at them using a magnifying glass?
saleemarshad said:
Hello,
I have a VODAFONE BRANDED, HTC TOUCH PRO phone and it has started playing up suddenly.
It would charge when connected to a pc, car charger using a usb cable or using any mini usb charger. all of a sudden it has stopped charging with any other charger except its own htc wall plug charger.
I have tried a hard reset and still no joy.
the charge via usb is unchecked and it charges when connected to a PC.
However it doesnt charge with the following methods which used to work earlier
1. Motorola charger - mini usb
2. Using a usb cable and a wall output with usb
3. car charger with a usb output.
I have a htc audio out connecter. when i connect the connector, and then charge via usb it works in the car and from the wall.
is it something to do with the pins on the cables and on the device??
I used to get a menu asking the sort of connection that i needed (activesysnc, data etc) when connecting to the car charger earlier, it does not come anymore.
Its frustrating cos i travel a lot and find chrarging with usb cables the most convenint in the car, office or else where.
Could it be damaged pins on the device??
Any ideas/suggestions will be highly appreciated.
Many thanks
Sal
Click to expand...
Click to collapse
Ur problem solved? I am facing kind of similar problem... Now my Touch HD can only charge using USB cable through computer.. it will not charge using any other external AC adapter.. very strange huh?
100 % fix
I managed to solder the black negative wire to the usb housing of a male usb mini and now it charges without any problem. The housing is used as a substitute for pin 5 that is negative because it has a metal shield as standard.
to make it easier for some noobs, just get a usb female to a usb mini cable and cut it off and solder the negtive black wire to the shield cable around all the wires. AS standard all usb cable have this shield metal that conects to the usb housing.
This is a FIX if you have managed to break the pin5 when inserting the stylus in the usb rather than the RESET button.
I had a weird charging issue with my AT&T Fuze as well...
The phone would charge fine (wall or PC USB) until I got some kind of notification on the phone (missed call, e-mail, etc). Then it would stop charging. Often when it was on the charger and on, the battery would run down until the phone shut off. Then it would start charging again. I would put my phone on the charger at night (and on) only to come down in the morning to find my phone turned off and charging because the battery had run down!
Shortly after this started happening I also started to get "storage memory low" messages. Coincidentally, since I freed up a bit of the storage memory (cleared IE and Opera history) I have not had the charging problem...
mini-usb problems with charging
This is the 2nd Fuze that has problems with the mini-usb connection and charging.
Slight forward pressure is needed to get a good connection. This happens with two different cables, two different car chargers, and three different HTC usb adapter dongles.
My phone is usually plugged into my computer or my car charger, unless I'm carrying it. I keep the screen lit when on external power as I use it extensively as a PDA. It's real obvious when I lose the power connection, as the screen blanks shortly thereafter.
Do i need to send my fuze back? since I havent read a solution. I dont think its software but i turned on charging through usb and now its the only way to charge. No chargers work? Grrrr. Batterys and chargers are good. This happened to my last fuze.
not to be a prick or anytihng, but have you checked the battery settings, there is a checkbox so it doesnt charge when plugged in - i've knocked this on a few times myself
the OP already noted that that option was not checked. Please read a little before that.
My car charger sometimes need me to move the wires around abit before it starts charging. It seems to be more like a pin issue.
Mini USB Charging Problems
I had the same problem.
I just solve it by using other mini usb cable.
Now it charges.
HTC Touch Pro Charging via USB Problem Solved
I can't believe it was that easy! You are correct; There is a check-box that will disable charging via USB if the unit is powered on. "Systems/Battery" I have been putting up with this for months, but never took the time to try and solve it. Sheesh!
so another charging problem. Tablet connects just fine to the pc with the cable but does not give any charge when connected to the wall socket charger. I thought maybe the adapter was a goner but went to my friends and tried with his cable on my adapter worked just fine. than tried my cable on his adapter and it wouldnt charge :S.. confused how can a usb cable stop transmitting all power but still connect to the pc :S? maybe the head is messed up.any ideas?
check there isnt any dirt on the connections on the cable. The connections are tiny and it will only take a spec to stop it connecting properly. Other than that its possible one of the voltage lines is broken in the cable but the data lines are still intact. Only a theory of course and if you have a DVM it will soon let you know.
Same thing happened to me. I called tech support they suggested to wipe the device. After trying other options I did a wipe but when it rebooted it didn't wipe but the tf did start charging after that... Perhaps that will help you?
Sent from my HTC Sensation 4G using XDA App
Asus uses a USB connector on it's cable, but it is not wired to the true usb spec. When plugged into a pc, it acts like a usb 2.0 cable and provides 5v to the tf. It also uses two conductors for data transfer. The 5v will sloooowly charge the tf it is off. When plugged into the wall adapter, the tf provides a gnd signal on pin 7 of the usb connector, this tells the adapter to provide 15v on the normal 5v pin. USB 2.0 only uses 4 conductors /pins. USB 3.0 has additional conductors normally used for higher data rates. If you use any extension on the usb cable it must be a 3.0 cable or pin 7 will be unconnected and you will not get the gnd signal therefore wall charger will only deliver 5v and a very slow charge.
Hey bighunko thanks fir the idea but i nvflashed the new primeon it and it still wont work. I think maybe the power lines a goner. Never seen thishallen before to a usb. I tried everything. Even freezing the cable. It only works in connecting to the pc:s
Sent from my Transformer TF101 using Tapatalk
I'm happy to say my TF is still charging! Sorry you can't get it to charge...
Sent from my HTC Sensation 4G using XDA App
I've buyed an auto charger capable of 2100 mAh, but with gps and data connection active, however, the battery drains quickly.
Can anyone help?
Flash android 2.3.4 and ti'll fix the battery drain bug which is a problem in 2.3.3
shad0wboss said:
Flash android 2.3.4 and ti'll fix the battery drain bug which is a problem in 2.3.3
Click to expand...
Click to collapse
Ok, i've flashed the 2.3.4. I the next days will try the behaviours.
Any news? have you tried?
The battery charging so slow. It may take more then 4 hour for full charging. Can this problem solved after flash to 2.3.4?
With the new rom 2.3.4 flashed, the battery consume seems to be much linear than before, moreover maybe i've find the solution in the usb cable used in the car: a quick test by using the original usb cable with gps and data connection active has incremented the battery charge by 1% in a 10 km path.
Maybe the original cable has some special terminals configuration?
More extensive tests in next days.
Any improvement of charging time required after flash with 2.3.4 rom?
mynewuser said:
Any improvement of charging time required after flash with 2.3.4 rom?
Click to expand...
Click to collapse
does not seem...
I know this problem from my HTC Desire, it's was the same and the reason was that a orig. charching cable from HTC had a special pin which says the phone to charge like ac with full power and not only usb power! You can check this in the menü. There is an entry for charching which says "AC" or "USB" charching. If it shows "USB" it goes very slow! But i don't know that there is a special charching cable for car charching from samsung available too.
Where is the menu entry that shows if is charging USB or AC?
Thanks
Hi,
You will find it there:
Settings -> (telephone) Status -> Battery Status
There it says charging AC or USB
With AC it charges with full power, with USB it charges with 500mAh only -- which is not enough power for GPS and Screen on.
(At least it's like that with HTC devices)
I have a HTC Legend -- my solution to this problem was to short-circuit the Data pins in the Micro-USB-Port of the Car-Charger.
The Original HTC-AC->USB Adapter also has the Data-Pins Short circuited.
If you buy the HTC Car-charger you will geht a special USB-Cable that only works for Charging and not for Data transfer.
So HTC Devices recognize the Original charges by detecting the short-circuited Data pins.
I don't know if it's the same with Samsung devices!
I hope it helped you a bit!
Any link on how to connect the circuited Data pins?
Yes, probably a connection scheme would be useful.
I bought today a car adapter with 1000 mah Power and micro usb port. It charges with "AC" shown in the system
It was very cheap only 10,- EUR from Germany Company "Hama" a great hardware
Yesterday i've tried with another cheap charger, and AC charge is here, by using the same cable of 2100 mAh charger.
So my conclusion is that the trick is in the charger port, not in the cable.
By searching on google, seems that the two central pins need to be short-circuited...
Hello everyone, I hope my English is understandable.
To avoid damaging the cable, I have modded the charger.
Generally the chargers are very simple to dismount: simply unscrew the ring that holds the spring and the fuse and remove a couple of screws.
Usually the data pins are soldered on the circuit board only for mechanical reasons (increase the endurance of the connector), but they are connected to nothing. Short-circuit the data pins with a solder, directly on the circuit board.
Now i see AC charge.
My old Toshiba TG01 required the same trick.
mom4751 said:
Hello everyone, I hope my English is understandable.
To avoid damaging the cable, I have modded the charger.
Generally the chargers are very simple to dismount: simply unscrew the ring that holds the spring and the fuse and remove a couple of screws.
Usually the data pins are soldered on the circuit board only for mechanical reasons (increase the endurance of the connector), but they are connected to nothing. Short-circuit the data pins with a solder, directly on the circuit board.
Now i see AC charge.
My old Toshiba TG01 required the same trick.
Click to expand...
Click to collapse
Good! I will try myself.
Anyone try this modification? Can it work?
http://winhlp.com/node/855