XDA Antenna connector configuration? - MDA, XDA, 1010 Software Upgrading

(Newby question) -first post
Does anyone know the antenna connector configuration for the XDA?
I have some ideas of connecting an external antenna but I don't want to
drill holes into the case if I can get away from it.
OR
A PCB layout of the internal antenna?
I also have a wrecked XDA (had a close encounter with the sea) and maybe it's 2 1/2 mm socket strategically mounted somewhere with some miniture RF coax to a suitable place might work.
I would appreciate your help.
Johnno

Related

HELP - Connector broken on bottom of XDA II. Can't Charge

This is probably a fairly simple problem for you guys.
The connector on the bottom of my XDA2 appears to have come dislodged.
It has been getting harder and harder to get it to charge recently but with a bit of pressure in one direction it appeared to charge OK.
That is until my GF plugged it in to charge and now its totaly dislodged.
I think the socket has broken free from its soldered terminals into the PCB inside the XDA2.
Is there a quick fix anyone can suggest (I am a qualified Electronic Engineer and can solder) or is there a repair centre (hopefully near Newcastle upon tyne (North East UK).
PLEASE someone HELP!!!!
Tom
i have the same problem, but i got the pin chart from here, and wired a charge hole on the outside. now i can only sync via IR. lot slower that usb. for some reason, the solder wont hold the same plug the way the manufacter did.
good luck.
Xda Service Centre
Vulcan Road North
Norwich
NR6 6AQ
Tel: 0808 100 3427
Pin Diagram for XDA 2 Connector
Where on here can I get pin connector.
Also where can I get tool to unscrew back off XDA2 so I can try and repair myself
Tom
1) use the search function. it's on wiki.xda-developers.com
2) you seem pretty unsure of yourself for a EE qualified engineer. Why, where does one obtain a torx screwdriver? A T6 will do.
We get this alot at work and use these guys. email them on
[email protected]
35 quid for a fix 72hr turnaround.
And no i have nothing to do with them
Possible solution
Hello,
I have the same problem and have managed the following solution to be able to charge the device with "a connector", its working perfect for me:
Note: You will lost some headset-functionality, I have tested that no internal components are affected, because the PIN used for power supply is cutted from the mainboard.
Disasemble the Device completely to have the main circuit board in the hand free from other coponents to be able to solder properly.
Buy a 4-contacts mini-jack connector (2.5mm)
Cut the Power Supply cable Power-Jack to replace it with the Mini-Jack (Image2 and Image4 )
Solder a cable to the 3 last ping of the base connector (Image1)
Cut (with Dremel for example...) one of the connectors of the Jack soldered on the mainboard (Image 3 and Image5)
Solder the cable that comes from the Base connector to the onboard Jack (Image 3 and 5) This is to get positive power from the Jack connector to the right place on the mainboard.
I hope this is enough, if you need more details please let me know.
Regards,
I have the same problem, though I am able to charge my qtek 2020 by putting it in one direction.
I am thinking about soldering a femal mini-usb port using pins 13,20,21,22 for positive power, 16,17,18 for ground, and 14,15 for UDC+ and UDC-. Has anyone managed to do this ?
Aw crap. Same thing's just happened to my XDA. The connector at the base has snapped. It's still connected (barely) but charging and data transfer won't work.
Is there any way to replace the connector with a mini-usb port at all or an alternative method that doesn't require me to send my phone out for 3 days?
Some threads that might help:
How to install USB connector
http://forum.xda-developers.com/showthread.php?t=242772&highlight=connector
pinout from wiki
http://wiki.xda-developers.com/index.php?pagename=Connectors
Please help me out to find pinout for standard USB sync cable. I have Windows PH10B phone and I bought Qtec 2020 sync cable on ebay and unfortunately it doesn't charge and doesn't sync.
Thank you,
Eugene

[Q] Connector inside phone is MMCX?

Does anybody now that kind of connector is inside phone - under back case, in internal antenna area? Is it MMCX? Does anybody know purpose of this connector? Is possible use this for connect external GSM/WiFi/GPS antenna?

[Q] External antenna

Hi all, I have a galaxy s4 i9505 and was wondering if anyone knows of an external antenna that will plug into the antenna port but instead of being attached to external antenna (such as a whip antenna etc), is attached to a flat small square or rectangular antenna that will fit behind the case (between the battery and case)? so I don't have to carry around an antenna in my pocket and can leave the antenna connected all the time.
thanks
Brett.
beanbag37 said:
Hi all, I have a galaxy s4 i9505 and was wondering if anyone knows of an external antenna that will plug into the antenna port but instead of being attached to external antenna (such as a whip antenna etc), is attached to a flat small square or rectangular antenna that will fit behind the case (between the battery and case)? so I don't have to carry around an antenna in my pocket and can leave the antenna connected all the time.
thanks
Brett.
Click to expand...
Click to collapse
Take a look: HERE

Purpose of antenna on the charging board?

Hi
I accidentally broke the antenna port on the charging board even lifting some of the traces from the board itself. However I have since then not noticed any problem with the reception at all. Does anyone know what the antenna connected by the internal antenna cable is used for? Is is a specific band or is it a MIMO think or something like that?
//Andreas

Slow WI-FI Issue Resolved

I'm not the first to post about this but I figured I would post to share my experiences. I have two head unit, a PX4 and PX5 both with major WI-FI performance issues. I would get .5Mbs download speed, yes that less then 1Mbs. There are several post about this issue, some suggested adding second antenna. I can happily report, that after installing two matched antenna's the WI-FI speed has significantly improved. I am now getting download speeds of around 30Mbs.
Some Notes:
* Both units already had solder points for a second antenna.
* Best WI-FI performance if the antennas are matched, so make sure the antenna you purchase fit the existing SMA connector on the back. If you have only a wire sticking out the back, then you'll need to desolder it and add two antenna SMA connectors.
* I used a multimeter to find the ground from the antenna pad. The ground pads where connected together electrically, so set the multimeter to test for "continuity". Both head unit had the pads opposite, so using the existing as a guide, solder the new antenna in the opposite direction.
* The soldering isn't to difficult but previous experience is required. This should not be performed if you have very limited soldering experience.
* To strip the antenna for soldering, strip the outer insulation off. Then pull the outer ground shield back and twist it so it bunches up where the outer insulation was stripped off. The strip the inner insulation off. The gap between the ground and exposed antenna wire should be about 2mm.
Because of the limited space I used very short antennas, search Amazon for "bestseller2016 2pcs 2400Mhz 2.4GHz 3dBi RP-SMA Male WiFi Omni Antenna for Linksys Booster" to see the antenna I used.
I purchased the SMA connector off ebay for few dollars.
Sorry, I have pictures but am unable to post since I don't have enough posts.

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