Database Users

Electroconductive Batteriecover?!

Have you ever touched the backcover while loading the Leo and did you noticed a "vibration" ? Is there any electricity flowing through?
and for what the hell are the contacts inside form decive heading cover?
gretz

think it does vibrate on boot, and contacts i assume are for the car holder, if im wrong i will be corrected

nokiaman1978 said:
think it does vibrate on boot, and contacts i assume are for the car holder, if im wrong i will be corrected
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I doesnt mean a phisycal vibration made by the motor... it feels like a vibration if you run one's hand over the cover while pluged power in.. or is it only me?

NightFire123 said:
I doesnt mean a phisycal vibration made by the motor... it feels like a vibration if you run one's hand over the cover while pluged power in.. or is it only me?
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I know the kind of 'vibration' you mean, I have mine plugged in now and I can't feel anything like an electric current running through the back panel.
Maybe it's just the grain of the metal?

I absolutely know what you mean.
When the HD2 is plugged in, if you swipe slowly from one side of the cover to the other one, you'll notice a very light vibration.
If you don't have it plugged in, you don't notice it.
EDIT: I also noticed that behaviour before on my external HDD

xILukasIx said:
EDIT: I also noticed that behaviour before on my external HDD
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Aye I had it on a Vaio 2.5" USB HDD I had a couple of years back, try licking it, lol!

Just tried it and couldn't feel a vibration. I did have to remove the plastic case that my phone is in to check this so it may have stopped any charge from being generated?. I didn't use the case when I first got the phone but I don't ever remember feeling this when charging. The contacts are definatey for the car holder back cover replacement.
Regards.

it might just be the brushed aluminium, my macbook pro has the same thing, it comes and goes... don't really think charging the battery is a factor... might just be static electricity

I noticed this on a realy cheap dvd player years ago... the player was under power I could even create some lightnings

NightFire123 said:
Have you ever touched the backcover while loading the Leo and did you noticed a "vibration" ? Is there any electricity flowing through?
and for what the hell are the contacts inside form decive heading cover?
gretz
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Click to collapse
Okay, I've seen a few threads like this so here's the answer:
The "vibration" you can feel is the result of VERY TINY amounts of capacitively coupled electric current from the mains charger.
IT IS NOT DANGEROUS!!!!
(All the time around you in the air there are electric currents flowing from lights, electric outlets, in fact from all electrical equipment.
The reason you don't notice this is because the resistance of the air is normally very high and your resistance is, relatively, very low so that only tiny voltages are present in your body.)
When you brush your fingers (or the back of your hand is best, because it is drier) across the HD2 metal battery cover it picks up the tiny capacitive currents from the 50Hz mains charger because you are making a bad (high resistance) connection to the metal cover and a voltage is allowed to develop across the connection, this will be around 220V A.C. but (I say again) at a tiny tiny current.
Your wonderful human nerve endings are VERY sensitive and can detect these small currents.
If you touch the HD2 cover firmly a better connection is made with your wet skin and the voltage will drop to almost zero as the resistance becomes lower.
Experiment with some types of home appliances like the metal case on your HiFi and you will also feel these "leakage" currents, they are everywhere lol.
Note: This is NOT the same as the static discharges from your headphones in this thread, those voltages are VERY HIGH and are generated by your clothes/carpets/shoes etc.
HTH
Kim

The above post is a great explanation and I too have the vibration on my device.
Reminds me of my old iMate Jasjar. The top cover had a brushed aluminum plate giving exactly the same effect.
Regards

ditto cozzykim's comments
this is often down to the quality of the PSU connected to the mains, especially those that are double-insulated (dont need an earth connection) as they have no reference to ground the voltage the PSU delivers between it's - and + pins will be correct but they might float 100s of volts above ground.
I've not felt anything through my stock HTC charger, but if i use my cheap-chinese-bought-off-ebay charger for my laptop with a usb cable i can feel it.

dexterslab said:
ditto cozzykim's comments
this is often down to the quality of the PSU connected to the mains, especially those that are double-insulated (dont need an earth connection) as they have no reference to ground the voltage the PSU delivers between it's - and + pins will be correct but they might float 100s of volts above ground.
I've not felt anything through my stock HTC charger, but if i use my cheap-chinese-bought-off-ebay charger for my laptop with a usb cable i can feel it.
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@"dexterslab"
And then Mandark said "Ha ha, ha ha, now I rule the world"
"And Dee Dee put the shrinking ray on groooowwww"
"You are steeewwwpid, and don't forget, you are steeewwwpid"
Best cartoon ever mate

It has to do with the earthing of the device.. this happens with meatal devices that are not grounded..

young blade said:
It has to do with the earthing of the device.. this happens with meatal devices that are not grounded..
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Correct, as dexterslab said, it's with double insulated devices that are not referenced to ground and can not happen with a Live/Neutral/Earth system, for example, a toaster which has a grounded case.

[Q] Electric shock or tingling effect on legend when charging

iam experiencing a electric shock or tingling effect from the body of my htc legend when charging.it goes of when i pick it up.upon placing it on some surface the same effect returns.iam a new one here,is it a faulty handset.it is there only when charging. please help

I'm pretty sure its a bad handset, a connector for charging the battery is exposed and touching the aluminum casing.
Sent from my Legend using XDA App

Your power source are not properly grounded.

its nt there when charging from my laptop

Your laptop only charges at half the rate of the AC adapter, it probably still is putting current through the aluminum case, but you don't feel it.

marclh1992 said:
I'm pretty sure its a bad handset, a connector for charging the battery is exposed and touching the aluminum casing.
Sent from my Legend using XDA App
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how is that possible.im afraid

driftcat said:
its nt there when charging from my laptop
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Well, thats because I had similar experience. I used to connect my phone to my laptop with AC adaptor (faulty battery) till one day when it was a goner, I bought a new slim OEM version which do not come with ground (2pin vs 3pin with grounding on stock adapter). Ever since, I have had electric shock whenever Im connecting to my laptop.
I have gotten electric shock when using the stock charger as well. The old wiring at my in-laws house probably the cause for it. It was okay at home.

andrekua said:
Well, thats because I had similar experience. I used to connect my phone to my laptop with AC adaptor (faulty battery) till one day when it was a goner, I bought a new slim OEM version which do not come with ground (2pin vs 3pin with grounding on stock adapter). Ever since, I have had electric shock whenever Im connecting to my laptop.
I have gotten electric shock when using the stock charger as well. The old wiring at my in-laws house probably the cause for it. It was okay at home.
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Sent from my HTC Legend using XDA App
So u r saying my phone is at fault or the wiring

TL;DR, replace the handset.

Is anybody having the same fault.place the handset on a surface when plugged in to the power and rub Ur finger on to the metal part of Ur legend.
Members please see for urself.
Sent from my HTC Legend using XDA App

"iam experiencing a electric shock or tingling effect from the body of my htc legend when charging.it goes of when i pick it up.upon placing it on some surface the same effect returns.iam a new one here,is it a faulty handset.it is there only when charging. please help"
Are you sure you bought an HTC Legend? Are you sure it's not a defibrillator?

Your phone is just fine, don't worry. The effect your are feeling on your skin is caused by the charger and has nothing to to with the phone. There are some unqualified posts in this thread (e.g. problem with wiring, charging current) which should best be ignored.
To the effect itself. The charger isolates the mains power from the secondary power through the use of a transformer. Also our new small power supplies work with transformers, but operate them at a higher frequency (sometimes audible) after the main power has been rectified. But the power supplies represent also an electric capacity, and therefore the secondary output may charge up relative to ground. But this capacity is so small, that you may feel a voltage on your skin but there is no risk whatsoever. By the way, the back of the finger is very sensitive. Try to move it along metallic surfaces of other device (e.g. desk lamp) and you may fell the electric potential. The only way to completely avoid this is to use a grounded power supply, like some used to charge laptops.
Markus

yep. use groundod power supply. i have this thing when charging from my laptop and the laptop adapter is not properly grounded.
dont worry, its normal and negligible.

nethopper said:
Your phone is just fine, don't worry. The effect your are feeling on your skin is caused by the charger and has nothing to to with the phone. There are some unqualified posts in this thread (e.g. problem with wiring, charging current) which should best be ignored.
To the effect itself. The charger isolates the mains power from the secondary power through the use of a transformer. Also our new small power supplies work with transformers, but operate them at a higher frequency (sometimes audible) after the main power has been rectified. But the power supplies represent also an electric capacity, and therefore the secondary output may charge up relative to ground. But this capacity is so small, that you may feel a voltage on your skin but there is no risk whatsoever. By the way, the back of the finger is very sensitive. Try to move it along metallic surfaces of other device (e.g. desk lamp) and you may fell the electric potential. The only way to completely avoid this is to use a grounded power supply, like some used to charge laptops.
Markus
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i contacted htc support.the person over there asked me to bring the handset to the service center.r u saying i should not take it there,and avoid the whole thing

driftcat said:
i contacted htc support.the person over there asked me to bring the handset to the service center.r u saying i should not take it there,and avoid the whole thing
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Yes, keep your Legend and enjoy it...

If i had this problem i would most likely first try an other power adapter
if the problem is gone fine!!!
if not then i would send it to HTC service

I had the same problem for a while, changed the charger cable (Micro USB to USB-A bit) and it fixed it
Oh the comment about a difibrilator..........Nice!!
Mike

short circuited my note

Hi everyone,
First of all, I apologize in advance,
1. Because I know this isn't a tech support forum.
2. Because I don't contribute and help out as much as I should.
Coming here was a last resort, I don't consider myself a noob, but I'm really stuck here.
Please note that I appreciate every single response, and I will donate if anyone can give me a fix.
With that aside, let me get started
__________________________________
Okay so about a week ago, I accidentally bent my charger when it was charging my note.
It didn't charge at all that night
That morning, I blew into the charge port on my note, suspecting that dust may have been the cause.
Somehow, that helped, as my note charged fully that day, in about 2-3 hours
Then I tried charging it the next night.
It charged incredibly slowly, reaching about 70% after 10 hours charge
The next few nights were similar, but reaching no more than 40% charge after 10 hours.
It got progressively worse, it would only charge if I applied pressure to the mini-usb,
I looked around this morning, and stumbled across another guy with the same problem
(see here http://www.galaxynoteforum.net/galaxy-note-help/charging-port-issue/ )
He advised,
"Well I have figured out the issue. If you look into the charging port slot on the phone you will notice a small thin flat piece of metal which inserts into the charger. That was slanted and angled downward which would not let "ANY" charger or docking station charge correctly also causing it to drain the battery. Contacts on this piece and the phone were to close causing a minor contact draining power. I used a precision flathead screw driver and lifted the piece slightly and now works fine"
So I tried that, and it seemed to help, as the note began charging, (extremely slowly, reaching about 30%)
Then I tried pushing that "thin flat piece of metal up even further"
However, I went too far, and I couldn't fit the charger into the charge port.
So I tried pushing it back into the centre but I may have damaged one of the pins in the charge port (inside the phone)
I seen a little spark, and the note turned off.
I tried switching it on, and managed to boot to safe mode (no idea how)
So then I tried charging it, I applied pressure and managed to get it to start charging. (thank god)
This was about 30 mins ago, it looks to be holding the charge at about 20%, but it's not increasing
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I suspect one of the pins in the note charge port was snapped off.. although I'm not sure.. (it appears to be the one on the right)
1.Does anyone know how many pins there are on the charge port inside the note? (is it 4 or 5?)
2.What should I do?
If I broke a pin, it should not charge at all, right? (but it seems to be charging)
3. Do I need to replace the charge port, if so, how much would it cost?
4. Would I be better off getting a charging station, and charging the battery using that
5. Should I try moving the metal strip again? (inside the charge port of the note)
oops forgot to mention, when the problem started, and the note was slow-charging, an audible buzzing/humming could be heard in the wall outlet
also, I'm using my original samsung usb charger, not a generic one, and I'm charging directly into a wall outlet.
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Thank you for taking the time to read this, I really appreciate it, and any advise that you do offer.
Cyber735

Here my tipp: You can go to a service center, maybe they even repair it under warranty. Or you can order a new micro usb port and replace it. Google should help you to find a seller. Depends on whether you feel comfortable enough to replace it yourself or not. Oh one more thing, I would stopp using your Note to avoid any further damage.
Sent from my Galaxy Note running ICS

there are 5 pins on the charger slot, 4 I believe are for data transfer and the 5th being the one that draws power (charges the phone)
Have you tried transferring data from PC to Phone and see how that pans out ?
Its possible to replace the USB port, Ive seen a few threads about this on XDA, A quick search should chuck out some results.
But as mentioned above, Try to claim under warranty first, if you have it, or pay the Service centre to do it if you dont feel confident enough to do it yourself.
I think I recall someone with a similar issue and it cost him / her $60 for USB replacement (convert that in to your currency)
If you have a friend with a Note or a phone that fits the Note's battery you could always charge your battery in that phone and place it into yours until you get it fixed.
IF YOU MUST charge your Note ( you could if you intend to get a new USB slot) I would suggest to charge only via USB - as in charging from your PC / Laptop / TV / PS3 etc. As this will not draw as much current as it would coming directly from the mains supply!
Good luck on getting it fixed, And please keep us posted with the results !

http://pinoutsguide.com/PortableDevices/micro_usb_pinout.shtml
check this out. It gives the pin configuration. I am no expert but hope it helps!

altae said:
Here my tipp: You can go to a service center, maybe they even repair it under warranty. Or you can order a new micro usb port and replace it. Google should help you to find a seller. Depends on whether you feel comfortable enough to replace it yourself or not. Oh one more thing, I would stopp using your Note to avoid any further damage.
Sent from my Galaxy Note running ICS
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r
Thanks for the quick reply!
First of all, I can confirm that no pins are broken or bent, everything looks normal, it also seems to be charging better, as I centred the metal strip in the charge port.
As for warranty, well I didn't purchase any extended warranty or insurance, however, the standard warranty lasts 2 years.
Unfortunately
The Repair Warranty Exclusions are as follows: (i) Subject to the inclusions of the applicable manufacturer's warranty, a mobile that has broken down or is damaged as a result of: (a) abuse or tampering, (b) electrical damage, moisture, dampness, oxidation, corrosion or food, dirt or liquid ingress (c) accident, neglect, impact, actual or attempted theft, fire, power outages or surges, or incorrect voltage, (d) transportation or packaging (e) removable batteries or damage caused by battery leakage
Basically, the only thing that I'm covered for is "handset breakdown"
My phone is in perfect condition, and no pins are broken or bent (as discovered on closer inspection)
So do you class charging issues as "handset breakdown" or not?
I may purchase a new charger, just in case the issue is with the charger, and not the phone,
What d'ya think?

Thanks again for the quick replies azzledazzle & nipuna, I didn't notice them until now,
Yeah I'm 90% there's no damage to the pins on the charge port, and it seems to be charging now, slowly at least,
I've centered the metal strip as best as I can, (inside the charge port)
I'll leave it to charge now for a while, as I'm not sure if it's fixed or not
Then I'll try another charger if it doesn't work
If all else fails, I'll try getting it repaired under warranty
(although that's more of a last resort, as it will take a few weeks to get my phone back)
does anyone know if the standard galaxy s2 charger will work on the note?
I don't have it on me now, although I could borrow it from a friend
I know its an official samsung charger, although not sure if it's the usb or the other kind.
I'll let it charge for a while, then I'll try transferring data from the laptop, to make sure the pins are fine,
thanks for all your help everyone,

1st of all: if you go poking around in the usb port with a metal screwdriver, take out the battery first. Not only will it avoid shortcutting and maybe blow a fuse inside the phone, but it will also protect you from an exploding battery when shortcutted !

S2 charger will work
Sent from my GT-N7000 using xda premium

can plug and unplug charger repeatedly cause harm?

so I found my little sister plugging and unpluging the charger repeatedly, well she's a child I can't blame she was playing,but I can blame my stupidity for leaving my phone with her,luckily the charger wasn't connected to the wall so there was no electricity,anyway the phone charges and everything, but I can see 2 aligned marks on the rubber that covers the port,so what else might have happened? bent port?? is the port inside the phone bendable or tough?

Makes me cringe thinking about it ? if everything is still working though it's probably fine but only time will tell if the port fails. If you use wireless charger that will cut down the amount of times you have to plug it in. Before wireless charging I would use charger and ota daily on my Samsung devices and never had a port fail.

AndroiderM said:
Makes me cringe thinking about it �� if everything is still working though it's probably fine but only time will tell if the port fails. If you use wireless charger that will cut down the amount of times you have to plug it in. Before wireless charging I would use charger and ota daily on my Samsung devices and never had a port fail.
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thank you, well after this accident I will definitely get a wireless charger, but I have a question what do mean by 'time will tell if the port fails' I mean if it got damaged the phone wouldn't charge at all right? another question if any thing bad happened to the port would there be any possibility that It still charges however affect battery life cause it to drain fast for an example?

Just saying port couldve got minimal damage and a problem could arise downdown the road. Ex something bent that event breaks after multiple uses. I highly doubt this will happen just an example. All newer phones have safeguards overcharging, undervolting, etc so all you internals are fine especially with the charger being unplugged from the wall. Don't over think it if the phone starts acting up find an excuse to get a warranty replacement

AndroiderM said:
Just saying port couldve got minimal damage and a problem could arise downdown the road. Ex something bent that event breaks after multiple uses. I highly doubt this will happen just an example. All newer phones have safeguards overcharging, undervolting, etc so all you internals are fine especially with the charger being unplugged from the wall. Don't over think it if the phone starts acting up find an excuse to get a warranty replacement
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OK I got it, unfortunately I can't get a replacement as the 14 days are over but I hope that no harm was done, thank you.

Power on phone without battery

Anyone been able to turn on this phone and run it without a battery with permanent power?

Short answer: not possible.
Longer answer: You would need a pretty hefty engineering brain to figure this out, as the circuitry of the daughter board detects and adjusts the mainboards voltages and such, based on the battery output. When battery output is 0, meaning dead/removed battery, the daughter board doesn't supply voltages to the mainboard.
Now, you could replace the battery with a supercapacitor, but you'd need to have a pretty big one to output the current of a fully charged battery of the 6P - something around the 10kf mark, which IIRC from my university days, is roughly the size of 2 D-cell batteries or so. You'd then need to wire this all in, and even if you made it neat and 3D printed a new back, you went from a slim phone to a small brick. You'd also still need to provide current to charge the super capacitor, which doesn't use normal voltages like the charger and daughterboard can output, so you'd need to add in a voltage regulator board, wire that to the daughterboard, let the DB send current to the mainboard, and since this all outputs a lot of heat, now you run into a serious heating / cooling problem. Add a fan, a larger super capacitor to power said fan, and well, you now have something that looks like a bomb lol.
To touch further on the heat problem - my dash camera has a 10kf SC in it that I wired in instead of the crappy NiCad battery it came with. It was hot enough to keep the snow melted through the windshield on its own with 12v 1a current - roughly 20% of the current the wall charger of the 6p provides. It didn't keep the whole windshield free, rather, a spot large enough to let the camera do its thing without issue.

Thanks Wiltron for your reply. Doesn't seem worth it for me to go through that much trouble to be honest, besides, having something in your car that looks like a bomb these days will get me more attention than I want. I do have to say that I'm able to power the phone with just the charger connected, but up to a certain point, when the cpu spikes while booting it runs short of power and shuts off. Same thing when I'm fully booted into android, I disconnect the battery and it will stay running up to the point where I start some app or even just turn the phone on its side and the phone just goes dark. I'm thinking that the daughterboard does provide power to the motherboard without a battery, but just not enough. Do you think a heftier charger might overload the circuitry of the phone?

cbgreen said:
Do you think a heftier charger might overload the circuitry of the phone?
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It can provide as much current as normal operations permit, however just make sure the cable and charger are official and supported, like Benson certified cables and a decent quality car charger like Anker.
Don't go crazy with the 50amp 120v brick chargers for cars, but don't grab the cheap ass gas station 0.5a 5v 4 for $10 special either
Tronsmart has good ones - I use one personally that has the certified USB C cable built into it.. minimal issues other than the thing does get hot