Hello,
I recently acquired an XDA 2 with broken terminal. I soldered a new terminal to it. It is synchronizing fine and charging from USB but it is not charging from main or car charger. Apparenlty all solders are OK and pinout are as they should be (accoring to other postings on this forum). Pins 20, 21, 22 are showing connectivity among themselves and to positive terminal of standard charger. Pins 16, 17 and 18 showing connectivity among themselves and to ground (and negative termial of charger adaptor).
I used more than one chargers and checked voltage. Everything seems OK.
Any idea where the problem may be?
Thanks for assistance.
If it's charging via mini-USB, you need a charging cable when charging from a non-data source. These differ from normal USB cables in so much as they have pins 4-5 shorted together.
As an alternative, try resetting the phone with the cable plugged in. Sometimes this is enough to false the circuit to initiate the charging sequence. This emulates what happens when charging via a PC's USB port.
hey
i have a broken conector two!But i am from romania and i can't find here to buy! how muxh was it?
http://forum.xda-developers.com/showthread.php?t=310441&highlight=himalaya+connector
this guy would know where you can get the connector and what it's partnr is
andreibbc said:
i have a broken conector two!But i am from romania and i can't find here to buy! how muxh was it?
Click to expand...
Click to collapse
Hi andreibbc,
I took the connector out of an XDA (with broken screen!). You may buy new replacement from ebay (see item number 260138794518) but it will require good soldering skills!
liquidsilver said:
If it's charging via mini-USB, you need a charging cable when charging from a non-data source. These differ from normal USB cables in so much as they have pins 4-5 shorted together.
As an alternative, try resetting the phone with the cable plugged in. Sometimes this is enough to false the circuit to initiate the charging sequence. This emulates what happens when charging via a PC's USB port.
Click to expand...
Click to collapse
liquidsilver, thanks for your prompt response.
By mini-USB do you mean some special connector? I do not see any mini USB connector in the phone itself. It is charging through sync. cradle using usb connection, irrespective of whether main charger is connected or not. If I remove usb connection from computer it stops charging.
Please advise how to reset the phone with cable plugged in? (I assume you are referring to standard main charging connector)
http://forum.xda-developers.com/showthread.php?t=242772&highlight=connector
this guide show how to put in a miniUSB connector to replace the
org buttom connector of the devices
Rudegar said:
http://forum.xda-developers.com/showthread.php?t=242772&highlight=connector
this guide show how to put in a miniUSB connector to replace the
org buttom connector of the devices
Click to expand...
Click to collapse
Thanks for your response.
Since original connector (after resoldering) is working fine except main charging, I would rather keep it.
I would prefer trying options that will keep the existing connector such as resetting phone (as suggested by some other member, how?) or finding the actual cause of problem (including short connectors)
Any assistance will be of help?
i'm not 100% sure what your issue is
if the device is no charging
the most plausble reason is
broken legs on the connector
or bad solvering to the pcb for the chargning pins
or wrong connections
http://wiki.xda-developers.com/index.php?pagename=Connectors
Rudegar said:
i'm not 100% sure what your issue is
if the device is no charging
the most plausble reason is
broken legs on the connector
or bad solvering to the pcb for the chargning pins
or wrong connections
http://wiki.xda-developers.com/index.php?pagename=Connectors
Click to expand...
Click to collapse
Let me restate the problem.
I got an XDA II with broken connector. I took connector from and XDA (all legs intact) and soldered it to XDA II. Apparently soldering is fine.
The set is now synchronizing fine and charging while synchronizing (through USB and not through main charger). If I remove USB from computer it stops charging even if the main charger remain connected to synchronizing dock.
As long as direct main charging or charging through car adaptor is concern, Pins 20, 21, 22 are showing connectivity among themselves and to positive terminal of standard charger and Pins 16, 17, 18 showing connectivity among themselves and to ground (and negative termial of charger adaptor). If I am not wrong these are two sets of pins that are needed to be connected for main charging. I have checked main adaptor and tried more than one adaptors with same result.
My questions are:
Is there any other pin that may be short (or not connected) that is causing main charging to fail?
Is there any other possible component failure and if yes, which one and how to check it?
If the main charging has some programming part associated with it, is it possible that a reset may restart charging? if yes, how?
I hope the problem is clear now.
Thanks for your assistance.
msu said:
Let me restate the problem.
I got an XDA II with broken connector. I took connector from and XDA (all legs intact) and soldered it to XDA II. Apparently soldering is fine.
The set is now synchronizing fine and charging while synchronizing (through USB and not through main charger). If I remove USB from computer it stops charging even if the main charger remain connected to synchronizing dock.
As long as direct main charging or charging through car adaptor is concern, Pins 20, 21, 22 are showing connectivity among themselves and to positive terminal of standard charger and Pins 16, 17, 18 showing connectivity among themselves and to ground (and negative termial of charger adaptor). If I am not wrong these are two sets of pins that are needed to be connected for main charging. I have checked main adaptor and tried more than one adaptors with same result.
My questions are:
Is there any other pin that may be short (or not connected) that is causing main charging to fail?
Is there any other possible component failure and if yes, which one and how to check it?
If the main charging has some programming part associated with it, is it possible that a reset may restart charging? if yes, how?
I hope the problem is clear now.
Thanks for your assistance.
Click to expand...
Click to collapse
Forgot to mention one thing which is that Pin 2, which according to connector diagram should be ground/ sensing is not showing connectivity with ground or with Pins 16, 17 , 18.
Does it affect main charging? and should I ground it?
Thanks
Hi,
I currently repair XDA Exec's for a client of mine who use them for their delivery drivers. They are constantly breaking the screens which are easy to fix, but more often than not they smash off the usb connector and leave it rattling around inside. This is not usually a big problem to fix unless the pads that the 5 pins are soldered to have been ripped off the board. I have found that even if I successfully replace the connector with a new one and solder the two outside pins (which are the gnd and 5v pins) the battery will not charge. The puzzling thing is, if I remove the battery, the red led comes on, presumably indicating power to the device. As soon as I connect the battery the led goes out and the unit boots up only to reveal that it is not charging. So I'm presuming two things:
1. There is some other electronic component damage in the unit caused when the connector broke (due to it being on the end of the charger cable at the time, if this is the case I will scrap the unit)
2. There is some feedback from the battery that the charger needs to continue with it's output and because I didn't reconnect the data pins it won't charge.
Does anyone know how the charging circuit works and what pin / connections are required for charging. I guess the same principle will apply to many PDA's & mobile phones.
Thanks
Rick
http://wiki.xda-developers.com/index.php?pagename=HTC Universal Service Manual
http://pinouts.ru/Slots/USB_pinout.shtml
mini usb is a standart anyway
.Lemon
Hi,
Thanks for your reply, call me a lemon but what utility do I need to unpack a .lemon file ?
Rick
Lemon Head
Forget that last post ok...
hi guys, I soldered a 5v charger's +5v & ground wires to a female USB port, then connected to the mini-usb port of the Atom, external power was detected but it doesn't charge, what else do I have to do to trigger charging? thanks!
ashy said:
hi guys, I soldered a 5v charger's +5v & ground wires to a female USB port, then connected to the mini-usb port of the Atom, external power was detected but it doesn't charge, what else do I have to do to trigger charging? thanks!
Click to expand...
Click to collapse
Interesting. I've noted similar issues, I first thought it was to do with the power current capacity however I'm not so sure now. What I did find was that if I plugged in the usb plug first and then turned the charger power on (e.g. car charger 850mA) then it would charge. However the original charger worked any which way. Also turning off the screen would result in slow charging even when it said not! Does this help?
There is some problem in oem battry driver, you can google to find the driver hotfix.
sorry for my BAD english..
You must give two other pins short with resistor as i remember. This is in order to simulate USB connectivity, which original charger do.
This is for HP Ipaq rw6815 I have..
more info you can find in below links it's for other devices, but the workaround is the same:
http://ecece.com/info/ipaqcradlemod/ipaqcradlemod.html
I don't think below method i safe enough, I think it's not a wise decision to shorten your data pins, but obviously work with iphone
http://carlhutzler.com/blog/2009/07/28/usb-hub-as-an-ipodiphone-charger/
I fried my charging port socket (don't ask -- coffee, I think). It smelled burned and the charger tip would get hot in the port. I bought a new charging port panel and properly installed it with the protective film removed from the bottom and carefully connected the ribbon cable. The phone will not accept input through the charging port micro USB, but it will charge on a wireless charger. Could I have fried the connector at the battery through which the plug-in power goes? Is there a separate circuit that inputs current from the wireless charger? Could that explain why changing the charging port circuit panel did not fix the problem? Should I buy a new battery and try that? Diagnostic help would be appreciated.
As my microusb jack on my sgs4 is starting to wear out i was wandering if i could use the two terminals on the back for the Qi charging pad for charging with a USB powerblock or computer etc?
What i was thinkin is to take a USB lead and just keep the male USB A plug, bare the wires and then connect the red and black wires to the Qi charging terminals on my phone, thus providing my phone with another means of charging..
So i guess im wondering if its possible to put 5v DC on the Qi pad terminals without damaging anything..
Grateful for any help