Database Users

My XDA won't charge

There have been quite a few postings here on people having problems charging their XDA with thrird-party chargers originally built for the XDA I.
Add me to the list I"m on the road and can't get the damned thing charged using the charger.
However the good news is, that the problem is not the cable (or the connector for that matter). Right now I'm in the internet cafe using the USB-connection to charge the XDA II at least a little. THis is working!!
My third-partz charger is a power supply with a USB-socket, that connects with this charge-sync cable. But, its not working! This leaves two possibilities:
1) The power supply is providing a lower voltage than the XDA II requires (something less than 5.0 Volts, mazbe 4.7?). I can't check this here, but if someone with a similar problem could measure his charger voltage using a multimeter, we might find an answer. Pins to check on this site under "connector".
If this is the cause, it won't help me here, but at least we'll have the problem solved.
2) I noticed in my charger, that the USB/pins 2 and 3 ( Data-H and Data-L) are unconnected. Potentially the XDA II has an issue if these lines are floating whilst power is applied to the USB-bus. I don't know if we can check this easilz,bu if someone has an Idea?
Greetings from the Maldives 8) Sun, warm, great, but no power for my XDA!!!

mobile charger
I'm using a nokia charger, and the supplied adapter and it seesm to work fine.

MDA/XDA II Pinout - Charge Issue Resolved!!
Being back from my vacation, I immediately got into figuring out why my third party charger was not working, though the MDA II would charge through the same cable when connected to the USB-bus of a PC.
It was a wiring error in the USB-cable after all!
To figure it out I took that little adapter that comes with the original charger apart. Though the MDA/XDA II has the same pinout as the MDA/XDA I, there is a major difference in that not all GND pins are connected together inside. In order to charge, at least one of Pins 16,17,18 must be connected to ground. The grounds on pins 2 and 5 are not connected to the internal charge circuit. TO make things worse, the MDA/XDA detects an external charge power source when pin 2 is GND and Pin 22 is +5V - so the light goes on, but it still does not charge.
On my cable the USB-shield was connected to pin 18. When connected to a PC, the shield was connected at that end to Ground and all went well. On my charger supply, the shield was not connected, so it couldn't charge.
I just rewired the connector and see there it works!
So, if you have the same problem, and are handy at the soldering iron, there is a solution! For those making/selling those USB charge/sync cables, get it right the first time!

Is it safe using a Nokia Charger ?
My Nokia travel charger is rated at 6.2 V, not 5.0 as the one supplied with the XDA II
Regards
Michael

Yeah! But watch out anyway because the volatge is not the only thing to check before charging a device. The right voltage but a bad amperage can cause lots of damage...

Using the Brando USB charger woukd actually DRAIN the battery when the bar reaches yellow....

Using a Nokia charger
The Nokia is rated at 6.2 V 720 mA, the original charger is 5V 1 A.
If I understand my physics right, the XDA may draw more current that the charger can handle, so AMP vise, the danger is on the charger ?
Not that I belive that the XDA would really pull 1A, but you never know.
It would be really nice to have just one charger in the travel bag..
Regards
Michael

Suggest a USB Charger and source.
Can anyone suggest a usb charger cable and source in the UK for an O2 XDA 2 as the one that I have currently does not charge at all despite the light saying so.

xda ll charger
hi
you may get a car charger from http://www.expansys.com/product.asp?code=108736
i have had one on order for 2 weeks now may get it in the end :lol:

Re: Suggest a USB Charger and source.
bloodwynd said:
Can anyone suggest a usb charger cable and source in the UK for an O2 XDA 2 as the one that I have currently does not charge at all despite the light saying so.
Click to expand...
Click to collapse
This was the effect I had. Its a mistake in the wiring on your cable.

Thanks,
What I am really after is to find out if there is a place to find a USB cable that will work right out of the box/dodgy package that it comes in. I am not good with soldering irons or electronics and would like to buy one that is wired up correctly to charge my XDA II.
Cheers.

Apparently the usb cables were made thicker with more recently manufactured S3's

Just comparing my S3 with my sisters S3, i realised that the bundled usb cable is actually thicker on more recently sold phones.
I noticed this after trying different chargers to try getting her phone charging properly again, and found that her thinner cable was providing less power then say a completely hard wired travel mate charger, In result, her usb cable was providing enough juice to maintain a level of charge but not providing the power necessary to charge it.
I'm used to LION battery circuits being on a switch setup, so that the device is powered completely from the external source during the charge, however the charging on these phones (and possibly other samsung phones) passes through the battery itself, so it does seem that inferior cables can and do affect charging times, atleast while the device is operating.
So to those complaining about slow/no charge, check the quality of your bundled cable, the thicker cables are certainly harder to bend and feel more durable than those sold with the phones earlier in the year.
I found that a good way to check this is when the battery is at 80%, a good quality cable or travelmate charger will increase the current voltage value in battery stats (*#0228#) from 4000xish to 4250+ upon plugin. The inferior cable (or maybe it was damaged even?) may increase it to 41xxish and the battery will appear to take forever to charge, or not at all.

Squall-Leonhart said:
Just comparing my S3 with my sisters S3, i realised that the bundled usb cable is actually thicker on more recently sold phones.
I noticed this after trying different chargers to try getting her phone charging properly again, and found that her thinner cable was providing less power then say a completely hard wired travel mate charger, In result, her usb cable was providing enough juice to maintain a level of charge but not providing the power necessary to charge it.
I'm used to LION battery circuits being on a switch setup, so that the device is powered completely from the external source during the charge, however the charging on these phones (and possibly other samsung phones) passes through the battery itself, so it does seem that inferior cables can and do affect charging times, atleast while the device is operating.
So to those complaining about slow/no charge, check the quality of your bundled cable, the thicker cables are certainly harder to bend and feel more durable than those sold with the phones earlier in the year.
I found that a good way to check this is when the battery is at 80%, a good quality cable or travelmate charger will increase the current voltage value in battery stats (*#0228#) from 4000xish to 4250+ upon plugin. The inferior cable (or maybe it was damaged even?) may increase it to 41xxish and the battery will appear to take forever to charge, or not at all.
Click to expand...
Click to collapse
Is there a way to see the charging current?

Have u check the five pin on the cable? Mine missing 1 pin, making the charger slow. Already compare it with working charger.
Sent from my GT-I9300 using xda app-developers app

Use current widget from market for current flow to device
Sent from my GT-I9300 using xda app-developers app

azrieqb said:
Have u check the five pin on the cable? Mine missing 1 pin, making the charger slow. Already compare it with working charger.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
The 4th (or second, depending on which way you're looking at it) pin does not exist on any USB to micro or micro USB adapter cables.
see http://forum.xda-developers.com/showthread.php?t=1174919
standard usb plugs only have 4 pins, 2 for data data, 1 for ground and the last voltage, so this extra pin is never available on any adapter cables, including phone charge cables - its not even present in my travel mate charger, so that pin missing has nothing to do with the slow charge.

I am very sure that my wife charger have 5 pin and working fine, and mine lost 1 pin very slow in charging. We both using the same phone. Btw, I am referring to the pin that's connected to the phone. Not the one to the plug.
Sent from my GT-I9300 using xda app-developers app

US-EU charger

Hi all
I bought a Nexus 10 in Walmart, but i will use it in Europe, so my question is, does a cheap US to EU AC Power Plug Travel Converter Adapter do the trick?
Or must i buy a diferent charge adapter for the european 220v
Thanks in advance

No need for a converter. Only the pins are us standard.
I also bought from Walmart and use it in middle east with the charger that was in the box. No converter nothing. Just works.
Sent from my GT-I9300 using Tapatalk 2

If you look closely at the small print on the charging brick, it will tell you what type of input it will accept. I believe I remember the N10 charger saying 110-220V.

zourn said:
If you look closely at the small print on the charging brick, it will tell you what type of input it will accept. I believe I remember the N10 charger saying 110-220V.
Click to expand...
Click to collapse
It's also worth noting that the power frequency is different between the Americas(60Hz) and Europe(50Hz).
While most power supplies will support 50/60Hz, Some older devices did not. As above, this is also written on the PSU.

Thanks all. Question solved.
Sent from my Galaxy Nexus

I see your question is solved but I'd like to add a couple of points.
The supplied nexus 10 charger is rated 100-240v 50/60hz, so it's gonna work fine everywhere.
It's possible to remove the us plug from the charger, and luckily this common ac cable will plug just fine.
If one can't stand the look of this cable and want an European plug, it seems to me that the galaxy.tab 10.1 which is easily found on eBay is just the same charger except for the USB cable
Sent from my Nexus 10 using Tapatalk HD

N4 Charging unstable?

Sometimes when I charge my phone I get spikes of charging then not charging. Wonder if this is a problem with the USB port or its just a dust issue there?
Sent from my Nexus 4 using Tapatalk 2

I think this phone just has a retarded charging port. The plug doesn't stay in securely which causes the phone to charge slow, first of all. And I recently started having the problem you described. It will say charging, not charging back and forth a bunch of times. Are you using a case? When this happens, I take off my case to make sure the plug is in there securely and I also make sure the AC adapter is plugged into the wall securely and that the USB plug is plugged into the AC adapter securely as well. This usually helps.
Charging this phone is such a headache sometimes.

That happened to me like a month ago and the charger was the culprit. But I also had slow charging (even with the wall adapter, it would eventually change to USB charging) and it wouldn't reach full charge. You might want to try another charger, just in case.
Sent from my Nexus 4 using xda app-developers app

I've seen this also and cleaned my USB pins...seemed to help.

DaveCosta said:
That happened to me like a month ago and the charger was the culprit. But I also had slow charging (even with the wall adapter, it would eventually change to USB charging) and it wouldn't reach full charge. You might want to try another charger, just in case.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
I have to agree. I am using a different charger because the one it came with sucks. I would wake up to a phone that had 50% even though it was on the charger all night.
Sent from my Nexus 4 using xda app-developers app

My Nexus 4 does this when I use the LG USB cable, but I don't remember if it happened with the stock charger. I lost that a long time ago, and now I use the charger from my old Motorola Atrix, which works fine if I use a cable other than the LG cable. I think my cable is damaged, but it feels like the cable always did that. If I plug my dads Atrix HD into the LG cable, it does the same unstable charging as my Nexus.

I have the same issue, have tried multiple chargers and cables, even happens over Qi.
I have a replacement phone coming

Had this too, charger was broken, just try another charger first.
I'm now using a standard samsung charger

I had this problem with the official charger, but it works well when I charge it using my computer usb ports (I prefer lower current when I charge over night) and the Nexus 10 charger.

Thanks for all your responses...it seems to be better now after cleaning the ports....but still happens sometimes...I'm trying to do a RMA for it but have a question...what if during their testing it didn't happen would I need to pay for the replaced device?
Sent from my Nexus 4 using Tapatalk 2

Qi wireless charging

Has any one any experience with wireless charging on the Yotaphone 2? It supports the Qi standard but I've not ever had any device that can be charged wireless so I don't know what to expect.
There are some cheap chargers on ebay so I may get one to experiment with but wonder what others are using, how long a charge takes? is there a tiny sweet spot to get it to work? does it get hot? Any compatability issues?
Thanks
Sent from my GT-N8010 using XDA Premium HD app

manmikey said:
Has any one any experience with wireless charging on the Yotaphone 2? It supports the Qi standard but I've not ever had any device that can be charged wireless so I don't know what to expect.
There are some cheap chargers on ebay so I may get one to experiment with but wonder what others are using, how long a charge takes? is there a tiny sweet spot to get it to work? does it get hot? Any compatability issues?
Thanks
Sent from my GT-N8010 using XDA Premium HD app
Click to expand...
Click to collapse
Hi there,
Yeah actually I got one for my YotaPhone 2, it's ADATA Elite CE700.
First I have to say I was very disappointed because apparently you can only wireless charging the YotaPhone2 with the main screen facing up! Also you should know that the spot where Qi located is a bit small (3cm in height in the middle of the EPD Screen), but that also depends on the type of wireless charger you would use. Something like Tylt Vu would Support more area thus its more hassle free.
It's also good to know that with wireless charging you won't get Quick Charging anymore. Because In order to do that you must use the MicroUSB port. But again how long a single charge takes depends the type of the Wireless Charger and the amount of output current it has which most of them are 1~1.5A.
For your last concern, any Qi Wireless Charger will do but try to get one of the Tylt Vu. It has the best reviews. And the phone won't get hot during wireless charging if you must know.
And something which I'm not sure whether its my wireless charger or it's general, is when the battery is 100% the charging won't stop, unlike the normal charging with dedicated adapter which cut the current when the charging is complete.

Sent from my HTC One using XDA Free mobile app
Hi, thanks for your detailed reply, I've now ordered two different generic chargers off amazon to experiment with, they are coming from China I think but were less than a tenner, I'll report back on these after ive used them for a bit.
It seems less than ideal for me to have to charge with the EPD facing down but I guess this is an engineering limitation. I'm sure there would be advantages and disadvantages of each side facing up during wireless charging.

I recently bought the Nokia DT903 wireless charging plate.
It works effortlessly with the Nexus 5. I can pick it up and place it back for charging with no connection worries.
With the Yotaphone 2 it does work, but it has to be in EXACTLY the right spot.... I'm talking millimetre precision here.... it becomes really frustrating to use and spoils one of the key benefits of wireless charging.

That's what is worrying me about Qi charging, I like the idea of wireless charging for the convenience, I work shifts and fiddling with the usb cable when I get in can disturb my partner, just being able to lay it on my night stand would be great, but sometimes I check the time on my phone in the middle of the night, or get up for the loo and nudge the charging cable and move the phone and if its really fussy about how it sits on the charger then I could end up with the phone not being charged overnight.
The ADATA Elite CE700 mentioned by Parisabs4 above looks like a good solution as it is adjustable and with the phone sitting on the cradle it is hopefully easier to hit the sweet spot.

QI charging experience
Okay so I've now tried 3 different Qi wireless charging plates and I have found that all of them exhibit the same problems whilst attempting to charge my Yotaphone 2
In the picture there are 2 single coil chargers and one triple coil charger (the one that is not flat) they are budget models, costing between £4 and £7 on Amazon.
I can get the Yotaphone to begin charging correctly on all three chargers, the phone says it is charging and the qi devices LED blinks to confirm charging. After 10 - 15 seconds the Yotaphone & chargers will stop charging, the indicators on the phone and charges indicate that charging has stopped. After a couple of seconds charging will recommence for about 15 seconds and the stop again, this cycle repeats for a few times then charging stops all together. Lifting the Yotaphone off and then returning to the charger will recommence charging.
My conclusions are that
My device has a faulty wireless charging receiver. (This is unlikely as im on my second device with the same symptoms after an RMA for a previous fault)
The charging software in the Yotaphone is buggy.
The Yotaphone is not fully compatible with the QI standard.
The Qi chargers I am using are not powerful enough for the Yotaphone. (Unlikely as I've now tried 3 different chargers but they were cheap!)
Has anyone else experienced this problem or is using a charger that is proving reliable?
I'm tempted to try the official wireless charging block as it ought to be compatible with the Yotaphone but its £40 wasted if not (although it can charge via a usb port too)
WHY IS NOTHONG EVER EASY IN THE TECH WORLD!!!!

The "old" Samsung S-Charger does not work either.
I got the following white list from the Yota support:
WCP-400 LG, Nexus5
WCP-300 LG, Nexus5
DT-601 Nokia
DT-900 Nokia
T-100 Speed
T-200 Fonesalesman
UNINC-585Q Uway
MP-01 Mpower
T-201 Speed
A010 Nexus(Google)
EP-PG900IBR Samsung S5
WCH-10 Sony

matts2 said:
The "old" Samsung S-Charger does not work either.
I got the following white list from the Yota support:
WCP-400 LG, Nexus5
WCP-300 LG, Nexus5
DT-601 Nokia
DT-900 Nokia
T-100 Speed
T-200 Fonesalesman
UNINC-585Q Uway
MP-01 Mpower
T-201 Speed
A010 Nexus(Google)
EP-PG900IBR Samsung S5
WCH-10 Sony
Click to expand...
Click to collapse
Thanks for that info, I've ordered a Nokia DT-601 from the whitelist, fingers crossed!
As a footnote I have found my tablet charger (a 2.1amp samsung) works with one of my qi charging plates to charge the yotaphone but any other 2.1amp charger exhibits the same problems as the regular 1 amp chargers I've been trying to power the qi plates. Also I've discovered the Yotaphone will not charge from the usb socket in my car but any other device I connect to the socket charges fine, this is one flakey device!
Sent from my GT-N8010 using XDA Premium HD app

yota releasing their own brand wireless, qi charger (has its own 4000mah battery) fairly soon I think. will be priced about £32

matts2 said:
The "old" Samsung S-Charger does not work either.
I got the following white list from the Yota support:
WCP-400 LG, Nexus5
WCP-300 LG, Nexus5
DT-601 Nokia
DT-900 Nokia
T-100 Speed
T-200 Fonesalesman
UNINC-585Q Uway
MP-01 Mpower
T-201 Speed
A010 Nexus(Google)
EP-PG900IBR Samsung S5
WCH-10 Sony
Click to expand...
Click to collapse
Thanks matts2 for sharing the list
I bought a Nokia-601 (£12.99 of Amazon) an it works perfectly, I've just charged from 35% to 100% with no issues. It even comes with its own 1.5amp mains usb charger
I'm happy happy happy now
Sent from my YD201 using XDA Free mobile app

manmikey said:
Thanks matts2 for sharing the list
I bought a Nokia-601 (£12.99 of Amazon) an it works perfectly, I've just charged from 35% to 100% with no issues. It even comes with its own 1.5amp mains usb charger
I'm happy happy happy now
Sent from my YD201 using XDA Free mobile app
Click to expand...
Click to collapse
I bought a cheap nameless one, have yet to receive it, I hope it will work in combination with a powerful adapter. Anyone got these cheap (5 USD) chargers working with their phone?

Another good QI charger for YP2 is/are the ones that IKEA sells. They have several models, but all seem based on the same platform powered by a 19V DC adapter.
I couldn't get any cheap QI chargers to work reliably with my YP2, but the IKEA chargers work great. They have some margin in positioning the phone on it, and prices start at around $30/EUR 25, so not to bad. I cannibalized the electronics from a JYSSEN to transplant them into a custom 3D printed charger case.

Does anyone have any experience using this Samsung 2A charger with the Yotaphone 2?
https://www.amazon.com/Samsung-EP-PG920IBUGUS-Wireless-Charging-Charger/dp/B00UCZGS6S/
UPDATE: Never mind, I ended up buying the Nokia DT-900 since it's on the official list of supported chargers.

I bought my first wireless charger , a cheapo one from China just to see how they are. Cheap as in 4 USD. It does work but exhibits behaviour like described above. All night only charges it a little and the on light is not on much. I thought it was a problem with a cheap charger, but maybe not, it sounds like Yotaphone firmware. I don't have any problem finding the sweet spot.
I was reading about new LG fast charger that is coming out soon, first ever fast 15w wireless charger. But of course it will be expensive .
http://m.androidcentral.com/lg-announces-new-super-fast-wireless-charger-get-you-cables-good

I bought an 3-coil-qi-charger-stand from China (eBay article 381639407985) about 10€. It works perfekt.
Cheap Single coil charger work also, but only if you place the Yotaphone at the exactly right position ( only 2mm tolerance). As the coil inside the 2,80€ single-chip-computers charger from China is often not places correctly inside the housing, you first have to correct that.
So tripple-coil is to be prefered.
One nice thing: Charging via QI and USB-OTG works fine at the same time on Yotaphone. You can put the Yotaphone 90 degree rotated on the 3-coil-charger-stand and watching Videos from a USB-Stick.
I even think about building an own small OTG-Adapter, using a extreme small micro-usb-connector (like used in universal QI reciver-plates), a very small USB-Micro-SD-Reader, some wire and epoxy. The SD-Reader will be placed on the lower frame of the ePaper. I use a bumper and would cut the neccassary space out of it. So I could build an nearly invissible (with bumper) SD-Card-slot. 64GB extra space is nice...

I'm using a Nokia DT-910 that I originally bought for my Nexus 5 a few years back.. works just fine with the YotaPhone 2..
No need to be careful with positioning or anything like that.. just put the phone on it and that's it.
The benefit of a charger like this is that you can actually see the screen while charging instead of it being flat on the table like some other models.
Link with pictures: https://www.microsoft.com/en/mobile/accessory/dt-910/

Has anyone used a wireless power bank with the Yotaphone ? I was amazed that this technology existed really

Parmo100 said:
Has anyone used a wireless power bank with the Yotaphone ? I was amazed that this technology existed really
Click to expand...
Click to collapse
Never thought about it but they do seem quite common https://www.youtube.com/results?search_query=qi+wireless+powerbank
Or you can easily make one yourself by taping a wireless charger to a powerbank

In that case there is a wire, between PB and Wireless charger. �� so NOT wireLESS, lol

Can I use a QI Wireless power bank to charge the Yotaphone in my pocket?
Sometimes my phone runs out of juice. Is it possible to buy a power bank with wireless charging capabilities and use it to tirelessly charge my phone, by placing the power bank in my pocket next to my phone?