Develop Bugs

[Q] Inductive Case

verizonwireless.com/b2c/store/accessory?action=accessoryDetails&accessoryId=47423
Looks to be a new Inductive case. Sorry but what is the point exactly to charge "wirelessly" like this when the phone is still having to be placed on a station?

because some people can't be bothered to plug in a cable to charge their phones. It just means the phone will charge if you put it down on the charge pad.

I work in a vzw retail store and one of the #1 problems I see in phones 2+ years old is the charging port is worn out and the phone can no longer charge. Although this can be mitigated slightly by simply being careful, no matter what you do every time you plug in there's a chance you could bend a pin, bend the end of your charger, or ream out the port. (happened to my old droid 2)
Wireless charging means no physical wear and tear in the charging port except when using data cable.

I like the idea of just putting my phone on a pad to charge. This would be great at work where I occasionally check on my phone and can just toss it back on the pad. I've definitely noticed how annoying it is to hold the phone while a cable is connected. It isn't anything that'd make me want to throw my phone against the wall, but annoying enough that I notice it.
My only gripe about the cover is that it adds that little bump on the back.

Now what would be awesome is if the inductive field were strong enough to actually charge the phone while it's standing up on the kick-stand. That would mitigate the annoying location of the usb port in terms of not being able to charge while watching videos in landscape mode.
mcmillanje said:
I work in a vzw retail store and one of the #1 problems I see in phones 2+ years old is the charging port is worn out and the phone can no longer charge.
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Fair enough, but how many people keep their phone 2+years? Of all my friends, there's only one of them that has so far, since moving to smartphones.
l7777 said:
because some people can't be bothered to plug in a cable to charge their phones. It just means the phone will charge if you put it down on the charge pad.
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If the charging pad is large enough, and you have multiple devices, there's the advantage of not having to have a separate plug/cable for each device.

inductive charging is awesome, can't wait til they figure out a way for it to charge while it's in my back pocket off my butt's voltage

Cheap, easy way to incorporate Wireless Charging

I know it's lazy, but thoughts? It's 1000 mA
I've never had wireless charging before and always told myself that my next phone would have wireless charging...
Intsun® Universal QI Wireless Charging Receiver film for micro-USB of All Android Mobile (Narrow-Interface Down) by Intsun http://www.amazon.com/dp/B00JIN22JM/ref=cm_sw_r_udp_awd_dlEXtb1VYP476
Sent from my One XL using Tapatalk

That one I believe is rated as 500mA so it's going to take a long time to charge. A 750mA one is better, but it will be thicker as well and the microUSB on them are shoddy. I would like it if someone knows the exact location of the +5V and Ground solder point on the mother board, that would be the best solution.

http://www.amazon.com/Universal-Wir...TF8&colid=3OC2TRSSGA72P&coliid=I1NLS41WJ2XY3W
This one looks like the same thing. Both say "Charging current: DC 5V/500mA-1000mA" but I wouldn't expect anything over 500mA. I ordered one anyway even though my case won't be here for another week.

interesting, if it is possible to "install" it under the back cover.!?

I wonder how long the OnePlus One will take at 500mA. I ordered the same one with "500-1000". Waiting on my case to arrive so I can actually use it.

Hilbe said:
I wonder how long the OnePlus One will take at 500mA. I ordered the same one with "500-1000". Waiting on my case to arrive so I can actually use it.
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I was going to make a thread today on this but I can confirm that most of these are actually 500mA regardless of what it says in the description. I already received the case I ordered from Amazon so I put it all together yesterday and it all plays nicely. You obviously loose the usb port but that's why I did all my rooting and unlocking first. It's plastic so it will likely not damage the usb port on the phone. I have not tested the charge time, will try today and let everyone know.
Originally I was thinking of putting the receiver behind the actual phone backing. Decided against it because you never know if you need the usb port. Also, I hate the feel of the back of the phone and much prefer the case.
If someone can identify the pins to make a direct connection, that would be great but for now it works!

funCrash93 said:
interesting, if it is possible to "install" it under the back cover.!?
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Read my thread here about how I soldered on internally. http://forum.xda-developers.com/oneplus-one/general/internal-wireless-charging-t2819398
The one that I purchased was rebranded as 750mA, but on the original sticker under the one put over it it says it's rated for 1000mA. I have a couple of the black ones OP is talking about and they don't provide enough juice to even reliably charge the one. Check out my thread above and the link to my original post on the opo forum. I have a link to the one I purchased on ebay there that worked the best for me.

@inaudible101 - what tools did you use to remove the back cover?
At 500mA, it should take about 6 hours to charge a battery at around 5%. This assumes that you are getting the full 500mA, too, not less.

AJ RIMMER! said:
@inaudible101 - what tools did you use to remove the back cover?
At 500mA, it should take about 6 hours to charge a battery at around 5%. This assumes that you are getting the full 500mA, too, not less.
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Yeah I tried a 500mA one and it just didn't cut it. The 1000mA one works much better. I may hook it up to my multimeter just to see what the real output is for my own sake. I used a pocket knife to get the corner up and then slid my thumb nail under and the hooks pop off easily. They have a video on their website showing that you can push on the back with your thumb and then just pry the bottom but I'm not sure how well that works.

Guys, what receiver do you have and how much does it really output? On mine it says 500 mAh but in reality it only has an average of 300 mAh. I measured this with Battery Monitor Widget.
This is my receiver: http://www.aliexpress.com/item/Univ...less-Charging-Receiver-Module/1973302276.html

Has anyone found a 1000ma version?

Is it safe to leave the receiver plugged in even if i'm not charging it, like would it damage my usb port?
Cause I just ordered one for my OPO and a wireless charger from aliexpress.

Qi-Charger Mod

This weekend, I did a well deserved 2015 Upgrade to my Galaxy Nexus, by making it compatible with Qi charging stations.
Showcase: https://www.youtube.com/watch?v=sbaimVOVAic
First thing I did, was take the phone apart. It's very easy and nearly impossible to do wrong. All you need to do is take out battery and sim card along with all the screws behind the cover. Then use a guitar pick or something similar to loose the clips around the screen: Start with the clip on the left, right below the volume keys, next the one above the speaker/frontfacing camera and the last two are located below the power button. This video shows how to do just that: https://www.youtube.com/watch?v=WIAM5pxdUiM
Afterwards, i drilled two holes with a 1mm drukk through two of the three contact plates, put small cables through said holes from the other side and soldered them to the contacts. It had to be as thin as possible, as the contacts make contact with the main board with tiny springs, that don't have a lot of give.
The three contacts are in the following order:
Left = +5V
Middle = [rumor]Samsung Fast Charge regulation[/rumor]
Right = Ground
After that was done, I use small metal strips (~0.5mm thick), shortened the cables and soldered them to these strips. Afterwards, I put the phone back together and fixed the position of the contacts according to the position the contacts of the Qi were in.
I had to scratch off some of the notches on the backplate, as these were in the way, due to the cables I had to route along the left side. Finally, I fixated the Qi module with some doublesided tape to the backplate and voilá, it was finished.
This cost me like 5 bucks for the noname aftermarket Qi module (charging station not included) and a few hours to get it all done!
If you got questions, feel free to ask (post, not pm pls!). Any kind of feedback is also welcomed!

Nice work! I added one of the USB qi coil addons and I found it got very hot when charging. I was worried it'd heat the battery up and shorten the life of it....

bamtan2 said:
Nice work! I added one of the USB qi coil addons and I found it got very hot when charging. I was worried it'd heat the battery up and shorten the life of it....
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yeah, im experiencing a similar issue. Looking at the current the qi station consumes, my module doesnt seem to throttle at all (via usb, it starts at 1A and, starting at around 85% charge, it slowly drops to 0A).
The Qi module should communicate with the station and signal the charge rate and subsequently full charge status (= no more charging). nada. I ordered another module by another manufacturer to see if it makes any difference. though, I suspect the GN just isnt fit for Qi, no matter what
P.S. The temps of the battery quickly go up to 45°C. When using normal usb charging, 40°C is already pretty rare. However most of the heat is not produced by charging the battery itself, but by the coil transferring the temperature. the backside of the battery remains a cool 30°C, even after charging for a long time using Qi.

Did you solve the high temperature problem? I was thinking of a similar mod but also got high temps with an external USB plug-in receiver module.

Great! I wanted to do something like that, bought the Qi unit, and a platform for charging, but before soldering checked both charges, and I did not like the fact that you need to put the phone just to the point that he began to be charged

Can anyone help me out with Tab Pro 8.4 Battery problem?

Ok, well...
I'm Korean, and I've searched almost every Korean tablet forums, yet can't find the reason :crying:
So I came to here, XDA.
The problem is, my Tab Pro 8.4 won't charge at all.
It's looks like an usual charging problem of Tab Pro 8.4, however, mine's little bit different.
With the charger plugged in and tablet is on, I can see the lighting shape on the battery icon at the status bar (which appears the charger is plugged in) ,
but no matter how long I charge the tablet, it's 0% and turn off after like...10 secs.
With the charger plugged in and tablet is off, I can see the battery pic appears on the middle of the black screen.
BUT, like the former situation, no matter how long I charge the tablet, I turn it on and it dies quickly.
SO, my problem is this, and i can't find a tiny reason why my tablet got (or how to fix) this battery problem.
Never seen a battery problem like I have right now.
I got several ideas about this. (Hope this will help you to fix my situation )
1. My tablet's rom is not pure. (But not rooted.)
As far as I remember, I applied the Ukrainian version about 3 weeks before.
Is it possible the this is the reason?
If so, wiping the original rom and applying the new one would help me?
2. Is it possible that the battery and the tablet connection got a problem?
If so, open it by myself and re-positioning the battery would help me?
3. The battery charger part might be damaged.
Then it leaves me the one option {GO TO THE SERVICE CENTER} ?
4. well...not 4.
have no idea.
Using same charger which is official SAMSUNG's.
I will keep monitoring this thread.
Little help to poor man would be really grateful, THX
PS
I just tested download mod.
With the charger is plugged in, it's working.

to see if the charger is bad, fully shut tablet down and then try to plug the tablet into a USB port on a computer and wait about 8 hours, then unplug it and see if the tablet holds any charge (battery might still be low but it should have enough charge to run awhile), if above works then it means you need another wall charger (5v 2.1A).
if it still just powers off or dies then it means the battery is bad or not connected or something else is wrong with it.
1. Try another USB cable
2. Try another 5v 2.1A wall charger
3. Try charging on a PC
4. replace battery.

To verify your tablet is charging, you need this little tool
http://www.ebay.com/sch/i.html?_fro...usb+power+current+and+voltage+tester&_sacat=0
Current should be 1.5 to 1.7 Amps, voltage should be 5 to 5.2 V
If the charging current is under 1.5 A, you should change different USB cable or adapter
If cable and adapter are fine, the next is charging port, it's easy to replace if your is defective.
Never use usb port on computer to charge, it only supply 0.5 A and your tablet needs at least 2 Amps for charging properly.
These are basic steps you need to do, without basic information I cannot tell what is wrong with your tablet: not charging or bad battery, or the worst: bad main board.
The one you have to verify: your tablet is drawing normal charging current around 1.5 to 1.7 Amps when plugged in. You can not troubleshoot problem just by guessing.
The most common problem of Samsung tablets are cracked Battery connector, a simple re-solder will fix the charging problem.
There are many unknowns, you have to eliminate charger, usb cable, usb charging port as the source of problem first. Then next look for battery or battery connector.
Otherwise, you will confuse yourself and others what causing the problem. Elimination is the key to figure out problem from many unknowns, one by one at a time. There's no short cut , otherwise, you can not figure out where the problem comes from.
I see many users send their tablets for service and the problem just comes from a bad cable because they have no idea what's wrong with their tablets.

Beut said:
To verify your tablet is charging, you need this little tool
http://www.ebay.com/sch/i.html?_fro...usb+power+current+and+voltage+tester&_sacat=0
Current should be 1.5 to 1.7 Amps, voltage should be 5 to 5.2 V
If the charging current is under 1.5 A, you should change different USB cable or adapter
If cable and adapter are fine, the next is charging port, it's easy to replace if your is defective.
Never use usb port on computer to charge, it only supply 0.5 A and your tablet needs at least 2 Amps for charging properly.
These are basic steps you need to do, without basic information I cannot tell what is wrong with your tablet: not charging or bad battery, or the worst: bad main board.
The most common problem of Samsung tablets are cracked Battery connector, a simple re-solder will fix the charging problem.
Click to expand...
Click to collapse
You can charge from a computer fine just as long as the tablet is fully shutdown first (so you see the battery icon scrolling), this will ensure the 500ma will go directly to the battery and not running the tablet and os, it will charge very slowly but it will eventually reach 100% as nothing is drawing power from the battery to drain it (though I would only charge to 20%, to see if it holds a charge), however this method is just for diagnosing if the charger is bad and have no current alternatives, obviously this should not be a long term solution and never used when the tablet is running, but rather to see if the battery can hold any charge at all.
if you have another 5v 1+A charger laying around then use that instead., if the charger is the problem you can pick them up pretty cheap off ebay (make sure the hallmark icons and model number match to avoid knockoffs)

otyg said:
if you have another 5v 1+A charger laying around then use that instead., if the charger is the problem you can pick them up pretty cheap off ebay (make sure the hallmark icons and model number match to avoid knockoffs)
Click to expand...
Click to collapse
To see what is wrong with charging problem, you should never use wrong charger like 5V, 1 A or a USB port on computer. If using a 5V, 2A charger and a correct USB , any reading is under 1.5 A, there is something wrong with charger, or USB cable, or USB charging port, or battery connector. Even wrong USB cable, the one has only max of 1A, also is the source of slow charging.

His issue is not with slow charging, it was as soon as he unplugged it the tablet instantly powered off, in this case if the battery is 100% dead then damage is already done and once a lithium battery is completely discharged then most likely no charger whatever the mA is will bring it back...this is why I was saying to charge it from whatever source since you need to get a charge into the battery before it's irreversible damage.
However after re-reading ops post I think it's safe to rule out the charger as the problem because he said he could run the tablet with it plugged in (so that means the Charger is providing enough power to run the tablet) according to my mA reader this alone is around 500-700mA in standard use / full brightness
This also mean we can rule out a bad Micro USB port on the tablet since a broken one wouldn't allow power to the tablet.
the problem likely lies with a bad battery or a bad battery connection, the probably only option at this point would be for him to have samsung service it or take the chance to replace the battery.
(BTW I have all the tools nessasary and I know what can and can't charge this tablet)
Yes I know it needs a 2.1a charger to charge it while it's actively running since a good portion of that power will go into running the tablet and LCD if needed, it does not need a 2.1A charger when it is powered off and 500mA to 2.1mA will still charge it.

Three is a thread here talking about reseating the battery. Look it up. That may help.

Agree with otyg. I recently had a similar problem. My galaxy tab s 8.4 would power off immediately after being removed from power. It would register as having 100% charge while turned off, but once powered on, the tablet would show 4% charged or lower. Another thread on this site mentioned that the battery contacts on the motherboard have cracked for some owners creating symptoms like ours. I resolved the issue by applying a low resistance conductive adhesive to the cracked pins linking the battery to the motherboard. If this happens to be your problem be very careful because there are other contacts next to the battery pins. Good luck!

Very slow charging problem

Hi, I brought a Nokia 6, for my 11 year old son about a month ago.
It was fine until about 4 days ago, when fast charging stopped working, and it only charges very slowly. If the phone is switched off, then it charges at a rate of about 4% per hour, so an overnight charge will charge the battery from empty to about 35%. If the phone is booted but otherwise idle, then the charger will just about keep up with power consumption and the battery percentage does not increase or decrease.
I have tried multiple chargers, cables and power banks. It makes no difference. The fact that I get slow charging when the phone is off suggests that the culprit is unlikely to be a battery draining app.
There is a suspicion of hardware damage, as my son may have pulled the charging cable out, or pushed it in too hard, bent it sideways or the like, though the set of symptoms is odd for a hardware issue, and feels more like software, and in any case the USB type C connector is normally very robust.
The phone is running the latest stock firmware from Nokia. It is not rooted unlocked or the like.
Has anyone seen anything similar? Can you suggest what I can do to investigate the problem further?

Did any of those support Qualcomm quick charge 3 or 4? Try installing Ampere on his phone and check the current from a fast charger with a good USB C cable. If it shows something in the neighborhood of 1500mA to 2300mA this is a software problem. Otherwise this is a hardware problem from somewhere along the circuit. At best all cables you tested are bad. At worst your phone needs a repair.

ap4ss3rby said:
Did any of those support Qualcomm quick charge 3 or 4? Try installing Ampere on his phone and check the current from a fast charger with a good USB C cable. If it shows something in the neighborhood of 1500mA to 2300mA this is a software problem. Otherwise this is a hardware problem from somewhere along the circuit. At best all cables you tested are bad. At worst your phone needs a repair.
Click to expand...
Click to collapse
Thanks.
I don't think any of the charges I used support Qualcomm quick charge, is it worth buying one on amazon prime to check?
I will install Ampere and report back.

chrestomanci said:
Thanks.
I don't think any of the charges I used support Qualcomm quick charge, is it worth buying one on amazon prime to check?
I will install Ampere and report back.
Click to expand...
Click to collapse
If you are the type to charge your phone overnight I don't think you need it unless you forgot. Running with a 50-70
Battery is better than having a dead battery, so it is worth it for the safety of mind.
My Nokia charger seems to support it out of the box. It has [email protected], [email protected] and [email protected] Depending on where you got it yours could very well be similar to mine.

ap4ss3rby said:
Did any of those support Qualcomm quick charge 3 or 4? Try installing Ampere on his phone and check the current from a fast charger with a good USB C cable. If it shows something in the neighborhood of 1500mA to 2300mA this is a software problem. Otherwise this is a hardware problem from somewhere along the circuit. At best all cables you tested are bad. At worst your phone needs a repair.
Click to expand...
Click to collapse
I installed Ampere, and it is reporting charge rates of 150 to 450 mA using a generic charger and cable, that works fine with my OnePlus phone. I will have to find the original Nokia charger to be sure, but it does look like some sort of hardware issue.
Thanks.

chrestomanci said:
I installed Ampere, and it is reporting charge rates of 150 to 450 mA using a generic charger and cable, that works fine with my OnePlus phone. I will have to find the original Nokia charger to be sure, but it does look like some sort of hardware issue.
Thanks.
Click to expand...
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Yeah I noticed the phone is picky about what charges it and what doesn't, probably the phone playing it safe with keeping the lithium in good condition.

ap4ss3rby said:
Yeah I noticed the phone is picky about what charges it and what doesn't, probably the phone playing it safe with keeping the lithium in good condition.
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Click to collapse
Interesting. I have charged my TA-1068 on all types of chargers. All have worked within an average amount of time. I wonder if different models are more or less picky. To me, it sounds as if the charging port might be damaged. Kids tend to be tough on equipment.

BoloMKXXVIII said:
Interesting. I have charged my TA-1068 on all types of chargers. All have worked within an average amount of time. I wonder if different models are more or less picky. To me, it sounds as if the charging port might be damaged. Kids tend to be tough on equipment.
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True, the phone itself might be one or two steps from being a brick with a decent smartphone inside but ports are not always invincible.

Quick update: I took the phone back to the store, and the store decided that it was probably a defect in the phone (not user damage) so they have sent it to Nokia for warranty work. With luck I should get it back repaired in a week or so.
I will post again to report the outcome.

I too noticed this traveling
ap4ss3rby said:
Yeah I noticed the phone is picky about what charges it and what doesn't, probably the phone playing it safe with keeping the lithium in good condition.
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If i use the OE charger its fine but once i tired to use the USB port on my car stereo or cig lighter USB adapter it actually drained the battery and it wouldnt prompt a USB charging curtain notification but it would show the lighting bolt/battery icon. Or the notification curtain would display the last thing i used USB for like moving pictures instead of every other phone ive ever owned which would default to USB charging