[Q] Pogo pin - capacitive charging potential - Sony Xperia T, TL, TX, V

hi,
I've been wanting a phone that can do wireless charging for a while.
This leaves me with 2 options : pogo pins (Nexus one, HTC one X, Xpeira Z), or capacitive charging (palm touchstone)
Both are possible to mod in the back of the phone, but i need a way to get the power into the phone. Hence my quesition. Does anybody know what these 4 connection points in the attached image are used for. I'm hoping this is a USB connector, but I haven't found the time to measure it myself.
tia,
john

Related

xperia cradle ?

has anyone seen an xperia cradle for sale ? i prefer having my phone sitting in the cradle whilst at work so that i can see the calendar / appointments, etc.
i realise the fact that the mini usb port being on the side means that it's unlikely that the phone can be charged whilst it's in the cradle ...
has anyone spotted one ?
Haven't seen one. I'd also like this and it would be great if you could have an alarm clock similar to the new Blackberry Storm as seen in the link below.
http://blogs.eveningsun.com/AC/2008/10/blackberry_storm.html
I found a link to this one over at xperiax1.net
Cradle + extra battery charger
good spot !
really ugly though with the loose usb cable hanging out.
Has anyone seen something with a solid usb connector (i. e. side frame with connector on it to push the phone agains)?
I want something where I can just push/slide/drop/whatever the phone in with one hand and have it connected, and just pull it back out to get it back!
downloadtest82 said:
really ugly though with the loose usb cable hanging out.
Has anyone seen something with a solid usb connector (i. e. side frame with connector on it to push the phone agains)?
I want something where I can just push/slide/drop/whatever the phone in with one hand and have it connected, and just pull it back out to get it back!
Click to expand...
Click to collapse
Yeah, I'm worried that with the position of the USB connector that it might not make cradle manufacturer's life easy for this phone. Is there president for a phone with a jack on the upper-side having a plug-and-charge cradle made for it?
I need to have a phone that can have a charge/stand that clicks right in.
i ended up buying the one in the link above. it's pretty lame if i'm honest but it's better than nothing ...
i can't see how any design is going to allow anyone to just grab the phone and remove it without having to wrestle with a connector at the side of the phone. annoyingly, there is only one input which (obviously) is the sync cable meaning that it's charged via my usb port rather than the mains (i.e it takes forever to charge ...)
we bought two of them, one is working one not. So we ordered directly by the manufacturer obo Hongkong and they arrieved yesterday. Both do not work! No connection to the PC! Error messages!
Hi guys,
I too was very suprised with the fact that I couldn't find any cradle which has a (as you call it) plug-in connection.
Enough reason for my to design and build one myself. I'm still in a very early stage of building, but I was wondering what would a cradle like that be worth for you guys, just to check if it would be furthwhile the make more than just one for myself.
They should just make a horizontal/landscape cradle that you slide out the keyboard and dock it like an UMPC. Honestly the vertical cradle looks hedious.
edit: just realized that's what the bb storm has. there you go.
mrdo said:
has anyone seen an xperia cradle for sale ? i prefer having my phone sitting in the cradle whilst at work so that i can see the calendar / appointments, etc.
i realise the fact that the mini usb port being on the side means that it's unlikely that the phone can be charged whilst it's in the cradle ...
has anyone spotted one ?
Click to expand...
Click to collapse
http://www.mobilefun.co.uk/product/17827.htm
Sorry for the repetition.
I'm with outie. The vertical docks look cheap and lame and don't show the X1 off to it's best, nor do they allow you to use phone the way it was intended.
We need a horizontal cradle that it can sit in with keyboard open like a real desk organiser. Hell, it even looks like Sony could have planned it that way by putting the sync connector on the bottom of the keyboard!
Got one directly from Brando (with spare battery). However it sucks ass. There are several kinds made by some OEM and it differs in number of ports. The Brando one has just one miniUSB input and the adapter just gives 1A. So you can only charge OR sync. So bit useless, as charging phone and battery through USB will take forever and charging phone and/or battery with that adapter would take also significantly longer, than the original CMU-20 and you cannot sync.
I saw one with two ports so you can sync and charge from your socket.. Wonder if mine can be opened and if it has also two ports, just hidden.
But hey, what do you want for 20USD?

[Q] Modify car cradle to automatically enable car mode ?

Hi there,
I just bought an active car cradle for the Htc HD2 (Carcomm), no problem, working as expected.
Then I began wondering why the phone would not go into car mode when connected to the car cradle... If it's a car cradle, it should put the phone into car mode, right ??
So I was wondering what could possibly trigger the phone into car mode when connected to a charger.
Found this in another thread (http://forum.xda-developers.com/showthread.php?t=767961):
To the person who wanted to know about connecting pins 2&3 to 4 to create a car doc? Looking at the USB spec datasheet It's not that simple. You need to insert a voltage divider across the data lines and tie it back into the 3.2v of the device. A little more trouble than it's worth unless you are doing it for the learning experience.
Click to expand...
Click to collapse
and also from user dabigcheezze :
unfortunately it is a problem with froyo, whenever the phone is placed into dock mode, no matter what the charging input, it will only show up charging in usb mode, i have a homemade dock cable with pin 4 to ground, when i hook that up to my 1 amp charger it only shows usb, using a normal cable it shows ac charging, it has nothing to do with the HTC dock, it will happen whenever the phone is placed into dock mode, it also locks the vol output on the 3.5 jack 3/4 up....sooooo stupid.
Click to expand...
Click to collapse
Does anyone know about grounding pin 4 to enable car mode ? what about power, is the charger powering enough the phone while using BT, GPS and navigation ? Also, the limitations in Froyo are they gone in Gingerbread or could it be fixed ?
Thank you for sharing your experience, I would really like to have a car cradle working 100%
Nobody ?
Sent from my HD2 using XDA App
Come on, I'm sure somebody did the modification... or tried to do it
Willing to share ?
Hi !
Just wait I can contact the guy I wish to buy that second hand HD2 first, then find an appropriate car charger craddle, and I'll look for a solution.
Don't know how to automatically enable car mode, but just solder the 2 middle wires in your USB cable together and you'll get 1A instead of 500mA, which charges way faster. Your car charger needs an output of 1A, of course, else it's just gonna remain 500mA.
StephanV said:
Don't know how to automatically enable car mode, but just solder the 2 middle wires in your USB cable together and you'll get 1A instead of 500mA, which charges way faster. Your car charger needs an output of 1A, of course, else it's just gonna remain 500mA.
Click to expand...
Click to collapse
Thanks for your reply. Yes, it's true. I've seen this small hack to enable AC charging for cheap chargers that are charging with USB mode (400mA I think).
My charger was good enough to provide AC charging (1A), which is great, but not enough to enable the car mode...
What I would like to confirm is if grounding pin 4 will really put the phone in car mode when plugged into the car cradle, before doing it myself...
Do not hack the hardware!
Use a software
http://forum.xda-developers.com/showthread.php?p=8178010
Thank you for your response.
But... is it a software for windows only ?
I run Android on my HD2
Unfortunately, the software only runs on Windows Mobile :-(
So you have to try that:
http://translate.google.at/translat....cz/forum/viewtopic.php?f=3&t=73&p=1037#p1037
seen here:
http://www.youtube.com/watch?v=Nx0zPFQtyxs
I personally ordered the original car holder from htc and it is really a very good one!
Excellent !!
I think that if the mentionned modification works with a HD2 AND a Desire HD, the official Htc android software should work also, like the windows software in the video.
Thank you, it's great ! I will post here my results when done
Even easier - try using PhoneWeaver (can't add a link as a noob)
It's basically an app for setting your phone's parameters, based on all sorts of external influences, such as time, date, power source etc.
So, for example, I have the following settings:-
6:15 am - turn phone on, set volume to Normal
8:15am - set volume to low (for when I'm in the office - its a personal mobile)
4:45pm - set volume to Normal
6:45pm, turn wireless on (as I'm at home, and browsing is much faster)
10:00pm - turn phone / wireless off, set volume to low, start SPB Time (my alarm clock)
Additionally, I have the following:-
If external power is detected AND Activesync isn't running (ie it's not connected to a PC) then turn on Bluetooth and increase volume (this is because the only other possibility for this environment is when its in the powered car cradle)
If external power is detected AND Activesync IS running, turn Bluetooth off, but turn wireless on
It's completely brilliant - never fails and I never have to remember to do anything

[Q] Is any kind of fast charging possible?

Team,
First off, I want to say thank you for creating an amazing resource for these phones. I currently have a Galaxy S4 Active MF3. I bought the phone with the intent of using it in conjunction with my car stereo, which is a Pioneer 8500 BHS. I've paired this up with a Samsung MHL 2.0 adapter and ARLiberator. On top of this, I have installed a OBD-II bluetooth module in the car that also communicates with the phone. The end result is that the phone delivers full touch screen control of all apps on the phone, full bluetooth hands free calling, voice control, GPS (Tom Tom), Pandora, and most importantly, gives me a second dashboard where I can customize any gauge that the car did not offer stock, such as boost gauge, wideband air/fuel ratio, exhaust gas temperature, and a few other things. I'm using the full version of Torque to do this. It is amazingly useful, with one exception. The Samsung MHL adapter never lets the phone charge at more than 300 milliamps. The USB connection straight from the stereo charges at 900, and a 2.1 AMP charger with the Samsung cable will charge at 1900. However, regardless of the combination I use, the MHL always cuts this down to 300. This causes the phone to lose about 15-20% of it's charge every hour. For short trips, this is OK, but for longer trips, I can no longer use GPS, which is a big problem, as that's the whole reason I got the phone. Other users of the standard Galaxy S4 and this combination have been able to get around this issue by installing a ROM with Fast Charge enabled, which gives them 800 milliamps. This is just enough to let the phone be used and slowly charged at the same time.
I understand that currently we're limited to stock kernels with modifications layered on top (GoldenEye, ETC...), and that the Fast Charge code requires a kernel recompile in order to function. Is this correct? Do I have any other options? I've considered wiring in a wireless charger just to get the phone to charge on long trips, but I'm concerned that wireless charging in addition to the USB input and charge may cause the battery to overheat or reduce it's life.
Any ideas?
Thanks in advance,
Matt
as far as I know, there is a possibility of welding a 100 Ohm (or just short circuit (more risky, but I've read that some guys using a standard usb cable with simple bypassed Data-wires in combination with the S4A)) between the D+ and D+ wires of the USB-Cable (should be the green and white wire within the cable). Regarding http://www.usb.org/developers/devclass_docs a resistance below 200 ohm is the sign for a dedicated charging cable/device.
I've seen a manual of an sgs user, having full loading speed in his car, using a modified cable. Unfortunately his manual is in German, u can find it here. All credits belong to him.
by the way, i am pretty sure u will find an similar manual within this xda-board using the right search patterns, cause It does not seem to be device related.
shaDNfro,
Thank you very much for your reply, but unfortunately the 'cable mod' will not work in this instance. The reason that it won't work is that the stereo needs the Data + and Data - for Audio and synchronization data being sent back to the headunit for broadcast, and the MHL blocks the D+ and D- resistance from reaching the phone. To verify this, I took a stock Samsung cable with a voltage inverter in the car, and wired the whole system up into the MHL adapater. The system still charges at 300 ma, despite the fact that I can plug the same cable going into the MHL directly into the phone and get 1900 ma. If I use a 'modded' cable without the inverter, then the MHL still charges at 300 ma, but AppRadio will not function, as it gets no signal from the data ports on the USB. To add insult to injury, the MHL input is a 12 pin interface, and shunting D+ and D- cables on the MHL output is dangerous, as the system is doing more with the 12 pins than a standard 4 pin USB. I really don't want to fry a 400+ dollar phone.
What we really need here is one of two things:
1. The ability to upload a recompiled kernel into the system (I know that we have a bounty on this and it's not going anywhere)
2. The ability to modify the input amperage without a recompiled kernel
I'm not sure if either of the above two things can be done. I'm either going to have to live with this or get a new phone.
If ANYONE has any other ideas, please let me know!
Matt
Is it possible to mod usb cable to take the power directly from car charger?
Connect usb chargin wires to car charger from phones end of usb??
Sent from my GT-I9295 using poor english.
Vaiski said:
Is it possible to mod usb cable to take the power directly from car charger?
Connect usb chargin wires to car charger from phones end of usb??
Sent from my GT-I9295 using poor english.
Click to expand...
Click to collapse
Vaiski,
That's not a bad idea! From some more of my recent research, it appears that I now have three options I can look into:
1. Vaiski's idea of adding a 2.1 AMP second USB line to the + and - phone input while cutting the current MHL + and - cable output. This would essentially allow the MHL to get its power from the stereo's USB input, and the phone to get its power from an external, high amperage USB line and still allow me to keep the data flowing between the phone, MHL adapter, and stereo. I've got a second 'generic' MHL adapter that I wouldn't mind cutting up to spare my $50.00 Samsung MHL adapter if this doesn't work. This wouldn't allow the system to get the full 1900 ma, but it should get me upwards of 300 ma, which is where I am now.
2. I can add a wireless charger into the mix. From what I've read, if you charge with USB and wireless charging at the same time, the wireless charging would take priority. This would give me the same results as option #1.
3. I can try using the samsung S4 Multimedia dock. It appears that the dock doesn't have the same voltage output limitations as the MHL adapter. It does cost $100.00, though, and it's rather bulky.
These are all really great ideas, but what really bothers me about all this is that it shouldn't be necessary. If Samsung/AT&T hadn't installed a bootloader kernel checksum, none of this would matter. I could simply put a custom kernel in and call it a day with my current hardware. Hopefully someone will crack the bootloader soon. That would really be the best option instead of being locked into 4.2.2.
Thanks again!
Matt
s4 active charging
mattb22 said:
Vaiski,
Thanks again!
Matt
Click to expand...
Click to collapse
I don't know whether or not you found a solution to your problem yet. I discovered same problem using stock charging cable and having Bluetooth, Wi-Fi amd GPS turned on, playing music through usb to a pioneer stereo.... no Bluetooth on stereo, but was using a BT hands-free device. Anyway, same problem as you, charger wouldn't keep up. Tried turning off Wi-Fi... had mobile hotspot turned on for wife's tablet, helped some but still drained faster than charged. A couple months ago, I couldn't find the factory charging/data cable and phone needed charging, so I tried a cable from one of those battery powered phone chargers, thing is only about a foot long, but phone said "charging" it went from about 30% to full in less than an hour, this phone has never charged that fast. I've experimented with it a bit, and it won't work as a data cable but it will keep up with everything turned on. I don't know if it's the length of the cable, or if the pins on the cable are different, in any case, try different cables, if you only need charge while your driving then the lack of data won't be a problem, though I liked being able to charge and listen to music at the same time, I'd rather know that my phone won't be dead when I get to the other end of a long road trip.... besides I figured out that a flash drive plugged into stereo plays music better.
Hope this helps

How to make a custom charging dock for Sony Xperia Z3 Compact with case.

Has anyone done something like this? Is there a polarity in the magnetic charging port?
I also read that the magnetic charging port is "glued" and over time it pulls loose. Is this true?
I'm thinking of making a charging dock such that it will fit whatever case I get and I can just insert the phone with gravity. Or one that I can slip into a slot and keep the phone vertical while it's pressured into the contacts. Is the magnet just for attachment, or does it activate reed switch or something inside the phone to enable it to charge?
I had an Xperia ZR where used an old mouse cable and got the + and - to connect to the right place. I even made some safety thing out of paper clips that requires some pressure to actually make contact with the USB + and - to prevent shorting my computer port. Can I do the same for the Z3 compact?
Anyways, so I bought a magnetic charging cable and probed it. For anyone interested...
The polarity is as follows:
5V
+ = Top (circular plug)
- = Bottom (oval plug)

Galaxy tab S5e pogo connector pinout

Dear all,
Just wanted to avoid spending some cash on Galaxy tab S5e stand. So short research on net show some pinouts of pogo connectors, and seems that Galaxy tab S5e uses USB pins .
So took multimeter, and found that first pin (counting from USB socket side) is GND.
Number 4 is 5V . Middle two I guessed are USB D+ and D-. But whatever combination (#2D+ or opposite D-) no success. Tablet is charging but in slow charging mode (seems to be 0,5A) . That is not so bad for me , as night is long enough to charge full easily. But anyway I would like to know what middle two pins can do. I saw on net some suggestions to use resistors, so tablet would try to charge at 2A , but none diagram works. To clarify , I have official charger and via USB cable , it charges fast.
So finally question... Do you know how to make USB connection via pogo connectors (so tablet could recognize charger, and maybe use for other USB devices)?
Or what are two middle pins for?
Here photo of my Poor's man dock. During photo there was no middle pins connected, but believe me , tried many options.
Edit, as I am new user , I can not paste links, but after 10 posts , I will update.
Edit 2 as I can not paste links, but if someone interested in photo , add http by yourself...
m.imgur.com/a/rPTQCYA
After one month of testing , I cat tell you that it is not necessary to figure out middle pins.
The device charges slowly (somewhere was written that it is limited to 0,5Ampere), but it is ok for me as during night it will be charged full anyway.
Device also activates nicely "daily board"with clock and looks nice.
I recommend this DIY stand. Made of old ethernet socket for pins, and USB printer cable.
Below link to photo how it looks like. I plan to paint it.... someday
m.imgur.com/a/jCGKCZX
Shame about the slow charging limited to 500mA. I've been looking at various tablets to potentially replace my 2019 Galaxy Tab A 10.1 in the car dash. Currently (no joke intended) having a fight with things to do with hub passthrough charging and the tablet taking over the role of power supplier when the car powers down....having pogo pins as an alternate charging method might present something useful as a fix, but 500mA doesn't exceed battery usage when powered up. Have you asked anybody that owns one of the docks to crack it open and see what's inside? Back when I had a Nexus 7, the four pogo pins on the dock corresponded to power and audio out via a 3.5mm jack in the dock.
One thing to keep in mind here that Samsung supports - and requires - QC3.0 for fast charge. So, you would need a source with that standard and if you want to verify (altghough the remaining time would immediately tell you) a suitable in line power trap.

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