Database Info

dead SP5m, not charging either

help people....
dropped my SP5m two weeks back and ever since it is not powering ON
ne idea what I could do to check what is wrong?
tried switching on the phone minus the battery, but it does not switch on (correct me if this normal)
I even tried get the voltage checked of the battery, but it also shows zero, maybe there is no left in it.
Checking voltage on the phone four pins in the back also shows no signs of any volatage, even when charger adaptor is connected. (I use Moto razor charger)
any help/idea is welcome....

desihu said:
help people....
dropped my SP5m two weeks back and ever since it is not powering ON
ne idea what I could do to check what is wrong?
tried switching on the phone minus the battery, but it does not switch on (correct me if this normal)
I even tried get the voltage checked of the battery, but it also shows zero, maybe there is no left in it.
Checking voltage on the phone four pins in the back also shows no signs of any volatage, even when charger adaptor is connected. (I use Moto razor charger)
any help/idea is welcome....
Click to expand...
Click to collapse
Have you tried powering up with USB plugged to a PC? Also, try powering up in BootLoader, sort of to make sure the motherboard is responding. Can you get a loaner battery from a friend? Your battery might have just broken internally(seen that happen on other devices).
I don't think it would be a hardware failure though. Trust me, If you only saw what I did to my SDAII, literally squezzed it between the 5th door and frame of my Van. Broke screen lens and LCD, warped housing, broke D-Pad(joystick) and, i pulled out battery, placed battery back, turned on phone, and re-dialed using bluetooth and it was working fine

For one thing, don't use any other charger except the one for the SP5m!! There are several posts in this forum that refer to problems using other chargers. If the battery is more than 50% charged, then your charger might work. Otherwise there isn't enough current output in the Motorola charger to kick-start a dead battery. So test with an OEM charger!!

bipinsen said:
there isn't enough current output in the Motorola charger to kick-start a dead battery
Click to expand...
Click to collapse
Really? My experience is that Motorola chargers will charge HTC devices but that HTC chargers will not charge Motorola devices so I always assumed the Motorola devices drew more power.

Motorola charger have approx. 0,5A when HTC chargers got 1A.

Power plug charging sometimes

I have a power plug and sometimes charges and sometimes don't. It also gets hot after about 10mins of charge but it is charging.
I know there has been a few faults but has anyone experienced this charging sometimes and hot to the touch?

The charger getting hot is a good sign; that shows that it is working. The charger will get (very) hot during charging and will cool off when it is done charging.
My recommendation to fix the sometimes charging/sometimes not charging problem is to pull the cord out of the plug unit and plug them back together. The cord is a little finicky and so it might need to be reseated. Make sure the cord is plugged ALL the way into the plug unit (it can be a little hard to get them to be perfectly together).

Hot Hot Hot
hipertec said:
I have a power plug and sometimes charges and sometimes don't. It also gets hot after about 10mins of charge but it is charging.
I know there has been a few faults but has anyone experienced this charging sometimes and hot to the touch?
Click to expand...
Click to collapse
I have called Asus on this issue and while they agreed to RMA the charger I just can't be without it right now so i wait. Chargers getting warm are normal, but chargers getting as hot as mine does is not normal and not good. I would estimate this charger is getting in the 160-180 degree range. Mine has also failed to charge on one occasion. One post i ran across said to change the polarity of the charger by turning it over so that the word ASUS is upside down when the viewing the outlet with the ground pin below the prongs. Seemed to help but not sure if its actually better or just wishful thinking, ymmv.

roryhawke said:
I have called Asus on this issue and while they agreed to RMA the charger I just can't be without it right now so i wait. Chargers getting warm are normal, but chargers getting as hot as mine does is not normal and not good. I would estimate this charger is getting in the 160-180 degree range. Mine has also failed to charge on one occasion. One post i ran across said to change the polarity of the charger by turning it over so that the word ASUS is upside down when the viewing the outlet with the ground pin below the prongs. Seemed to help but not sure if its actually better or just wishful thinking, ymmv.
Click to expand...
Click to collapse
Turning the charger over does not effect the heating of the charger, it simply eliminates the possibility of stray AC voltage on the shield of the cable and frame of the TF. The heating of the charger is caused by inefficiencies in the inexpensive charger and fact that it appears to be working close to its design limit. A few tips that have worked for me.
Use an outlet that good air circulation around it.
If used on an extension cord. sit on a heat conductive surface not on a carpet.
If tablet and dock are deeply discharged, charge separately and allow charger to cool between charge sessions.
If the charger gets too hot, it appears to shut off. Allowing it to cool generally gets it going again.

ASUS said i spoilt the power plug
sigh...i bought 2 units of EEE PAD **** TRANSFORMER...2 of the power plugs also loose...after 2 weeks of use...they said i spoilt the plugs and is not under warranty..i need to buy replacement...
how low quality is ASUS product or eee product...????

hipertec said:
I have a power plug and sometimes charges and sometimes don't. It also gets hot after about 10mins of charge but it is charging.
I know there has been a few faults but has anyone experienced this charging sometimes and hot to the touch?
Click to expand...
Click to collapse
The charger and plug for the wall are a 2 piece unit. Ensure that that end that contains the wall prongs is seated all the way down. There is a line between the 2 units. The pieces on both sides of the line should be flush.
Regarding temperature, mine gets pretty warm. Warm enough that I would not want to handle it.

Touchscreen issues when charging

Anyone having issues with your touch screen when you are using it while it's chArging? Just wondering if i have a faulty device or are there others with the same problem
Sent from my HTC One X using xda premium

No my device does not have this issue when charging. I think this issue has something to do with the charger.

That's a grounding problem, had it with my SGSII try a different cable.

The sensation had an issue of touchscreen problems while charging. i went through 3 phones. The cause is the same cause as the wifi errors that people are having with the HOX. Bad connection from unibody(sensation) to board.. If we added aluminum foil or solder (just like the HOX wifi issue) it would fix the problem. On the sensation the problem got really bad to where you couldnt unlock the phone with the lockring. grounding issue. I hope the HOX isnt having that same issue and you just have a bum phone or better yet a bum cord or charger. let us know if its either

yeah happened alot on my s2, was due to usb cable or something
but works fine when im charging

It was the grounding issue, does this damage the phone? I have a wall outlet with USB ports so it might emit too much power
Sent from my HTC One X using xda premium

slojko said:
It was the grounding issue, does this damage the phone? I have a wall outlet with USB ports so it might emit too much power
Sent from my HTC One X using xda premium
Click to expand...
Click to collapse
Every time this has happened it has been because of what the USB cable was plugged in to and not the cable itself. Try the charger it came with in a regular plug. If it doesn't work better then it is a phone problem.

This happens to me too. Charging from the laptop with an eBay (chinese) cable causes the touchscreen to be unresponsive.
Here's how to test: Open the Notes and draw a few lines very fast.
Here's the results:
USB Charging
No USB Charging

Here is a video of it happening to me on my skyrocket. It was because of the charger. Try a different cable, then a different wall adapter.
http://www.youtube.com/watch?v=x__jdlGXyjk

It is because of the charger...it's always recommended to use the charger that came with the phone eventhough they give us a tiny a$$ USB cable.
Sent from my HTC One XL using Tapatalk 2

Yes, I have an issue - when the phone gets to 90%+ while charging, the screen becomes very unresponsive. The drags don't drag - instead the touches are registered as taps.
You can get an app like MultiTouch Test - and you will see, it's very clear to see when this happens.
My first One X device did not have this issue, so it's something specific to my current unit. Doesn't bother me much, since it only happens at 90%+ charge, while plugged in...

neocryte said:
My first One X device did not have this issue, so it's something specific to my current unit. Doesn't bother me much, since it only happens at 90%+ charge, while plugged in...
Click to expand...
Click to collapse
To me it doesn't happen all the time, sometimes it happens, sometimes it doesn't. Unplugging the cable and plugging it back in seems to temporarily fix the problem, if I leave it charging for a couple more minutes, I think the problem will come back, but again, unplugging/plugging it back, solves it temporarily. It's weird...
Oh, and all this to say that I observed this behavior while charging around 65%, not 90%. And I've only observed this while charging with AC power with the original cable and charger. The problem did not present itself (yet) while charging through USB.

Touchscreen While Charging
Nazgulled said:
To me it doesn't happen all the time, sometimes it happens, sometimes it doesn't. Unplugging the cable and plugging it back in seems to temporarily fix the problem, if I leave it charging for a couple more minutes, I think the problem will come back, but again, unplugging/plugging it back, solves it temporarily. It's weird...
Oh, and all this to say that I observed this behavior while charging around 65%, not 90%. And I've only observed this while charging with AC power with the original cable and charger. The problem did not present itself (yet) while charging through USB.
Click to expand...
Click to collapse
I just had this happen with the stock charger from my old HTC One using it on my HTC One X. Along with touchscreen problems it got VERY hot located as you are looking at the camera side it got hot on the top right side near the camera. Dunno what that could be. Both chargers are rated at the same voltage and amperage, I dont get it
jmdwyer

jmdwyer said:
I just had this happen with the stock charger from my old HTC One using it on my HTC One X. Along with touchscreen problems it got VERY hot located as you are looking at the camera side it got hot on the top right side near the camera. Dunno what that could be. Both chargers are rated at the same voltage and amperage, I dont get it
jmdwyer
Click to expand...
Click to collapse
It's caused by electrical noise. The voltage supplied from your mains outlet is alternating current (typically 50/60hz in frequency). a usb charger has to do two things; firstly step down the voltage (110v/230v/240v down to 5v) and secondly rectify the alternating current into direct current (positive and negative). how it does this is by using a transformer which employs an iron core surrounded by copper windings, this generates a lot of rf (radio) which travels down the cables to the device as well as broadcasting a short distance through the air, a decent charger will use shielding as well as a few other pieces of circuitry which will neutralize the rf given off. In order to rectify the voltage the charger will use a variety of diodes and capitors, in a cheap Chinese charger they will typically use as little as 2 and possibly a generic chemical capacitor (similar to a small battery) these degrade over time and can get quite hot, fat and eventually burst - when you hear about chargers exploding or setting on fire it's usually because the capitors aren't up to the job. a Chinese charger may have all the quality control and certification stamps but most of them are forged, if you buy a charger for less than $10 this is what your likely to end up with. the outputted voltage may appear 5v on a multimeter but they are a very dirty output and can spike from 3v to 7v or even more the load on the charger increases. The dirty output interferes with the mechanism used on touch screen devices which also employ a type of capacitance to register where you are pressing on the screen. A decent charger will use solid state capitors and which should last a lifetime.
if the smartphone miss behaves whilst charging 90% of the time it's because of a faulty charging device (or one employing poor components). a decent charger may cost more $20 but they are significantly safer for both you and the device.
The problem with mains sockets with built in usb usually comes down to shielding, they will either have none or be earthed (which might sound like a good idea but in practise a lot of domestic devices will create leakage to earth causing more noise - alot of studio equipment will have a separate earth). These may not be as dangerous as cheap Chinese chargers but still undesirable.
If a original or good quality charger isn't available one of the best sources for charging a phone will actually be a desktop pc with a usb3 port. The whole pc is insulated in a nice metal case and there are a plefora of high quality components to create a stable clean power supply (a cpu voltage tolerance is usually measured to 2 decimal places of a volt which is pretty good).
Ditch the rubbish cheap chargers, you honestly get what you pay for and they aren't good for the long term health of the phone. If it hums or makes a high pitch noise whilst plugged in your playing with fire - literally. they aren't bothered if your phone dies in 6 months or bursts into flames so long as they get the $5 x 100,000 people who buy them (these things literally cost pennies for them to put together, even though the case might look the business inside they are nasty and as cheap as)
Sent from my HTC One XL using Tapatalk

Very insightful. The worst part is that I have two original HTC chargers and they both emit the high pitched noise.
Sent from my Evita

timmaaa said:
Very insightful. The worst part is that I have two original HTC chargers and they both emit the high pitched noise.
Sent from my Evita
Click to expand...
Click to collapse
Some of the very small chargers might whistle a little, its called coil noise and isn't as bad as capacitors about to pop. The iron core hasn't been sufficiently dampened or glued into the case so it resonates when the ac passes through it, the pitch may change depending on the voltage (whether its a 230v or 110v power supply). It isn't unsafe but HTC should be doing a better job at checking the new chargers, over time most chargers will develop coil noise as glue tends to melt or degrade.
Very insightful video, you'll never buy a cheap charger again
https://www.youtube.com/watch?v=wi-b9k-0KfE&feature=youtube_gdata_player
The gist being the cheap chargers could very well set on fire and the USB could go live at mains voltage with no circuit protection, death traps spring to mind. Be careful what you buy.
Sent from my K701HBC using Tapatalk

[Q] My N8000 facing a problem about charging.

Hello, I'm a N8000 user. I'm facing a problem with my charging issue where my tab take a long time to charge and it takes 10 hours to get from 0-60 %. FYI, I'm using a custom rom CM 10.2. What is the main cause with the charging issue? Does it related with charging port, battery or charger itself? please help me. I'm stuck now.

[QUOTE8=syafix21;50085752]Hello, I'm a N8000 user. I'm facing a problem with my charging issue where my tab take a long time to charge and it takes 10 hours to get from 0-60 %. FYI, I'm using a custom rom CM 10.2. What is the main cause with the charging issue? Does it related with charging port, battery or charger itself? please help me. I'm stuck now.[/QUOTE]
Charger maybe, but most on here get a new factory cabel and that takes care of it.

syafix21 said:
Hello, I'm a N8000 user. I'm facing a problem with my charging issue where my tab take a long time to charge and it takes 10 hours to get from 0-60 %. FYI, I'm using a custom rom CM 10.2. What is the main cause with the charging issue? Does it related with charging port, battery or charger itself? please help me. I'm stuck now.
Click to expand...
Click to collapse
Many similar thread already here & also the solutions.
But let me answer anyway.
Charging problem occurs because of one or more things:
Broken Cable
Broken Charger
Incompatible Cable
Incompatible Charger
Broken Outlet
Broken Charging Port
Broken Battery
To properly charging a N80XX we need a charger & cable that can deliver 2.1A, 5V of electrical current & voltage.
The factory default/initial charger & cable designed to deliver these requirements.
Using custom/cheap cable or cable extension can cause charging problem as it wasn't designed to deliver the required current & voltage.
Most custom cables & chargers on the market designed only to deliver 500mA(0.5A) - 1A, 5V.
Broken cable/charger can also cause it to fail in delivering 2.1A, 5V to the device.
Try another original cable/charger combination to test if one of them or both are broken.
Also try another electrical wall outlet to see if the outlet is the culprit.
For Broken Charging Port, you can change it yourself by buying the spare part & replace the broken one, but it requires high technical skills.
One mistake can cause you to ditch your device.
It's safer if you send it to a qualified/authorized service center or if it's still under warranty you can send it back to samsung.
The last possibility is extremely rare.
Broken Battery symptoms are usually different than your problem symptoms.
If the battery is broken, usually the battery life is shorter than usual and may be won't charge at all or charging time is very short.
But if this is your problem, you can't sent it back to samsung - unless the battery is factory damaged -, as you need to change the internal battery.
Try to find out which one is your real problem & fix it
REMINDER:
2.1A is producing heat so much that hurt your skin if you touch the metal part of the cable heads directly right after a long period of charging.
The heat it produce is much more intense than if you are using 500mA or 1A charger.
Poorly designed custom cable/charger can be melted by the heat & may cause explosion!!
...and.....ALWAYS SEARCH BEFORE ASKING!!
I hope this will help

I'd like to add that I was facing similar problem.
In my case, the problem was a stock charger cable.
It was not "broken" (in the meaning of totally cracked or cut cable) but it seemed that it isn't providing a stable voltage. In result, I was able to load the battery only when not using the device (plus the process was as slow as hell), coz when using it, the consumed power was higher than provided by the charger.
Meanwhile, before the problem occured, I was testing other solutions to be able to make charging cord longer than provided stock, which is only 1m. Those tests included using of the additional 2m USB-USB expansion cable which I was plugging to the plastic charger element from the one side and to the regular charging cable at the second side. Such a combination resulted in similiar results as above - then, it became obvious for me that the tablet consumes or wants to consume so high power that low-quality USB cable can't handle, and - especially if it is 2m long - it's degrading onto his way to the tablet.
Then, I am not sure if n8000, by demanding so much power, is not degrading the cable (even stock one) itself. I must say, that after that, I was using another charger cables (n8000 dedicated, one 2m second one 1.5m, both not original) which started to work significantly worse in even shorter time such as two weeks after first use. I am not a electrician or hardware specialist, I dunno if it is possible to degenerate the usb cable with the voltage such as one needed for charging the tablet, but during my over 10 years of passion within mobile devices, I have killed no more than 2 chargers IN TOTAL. N8000 killed 3 charging cables within 8 months.
For some time, I use another combination - I use a 1,5 long A/C extension cord, with a handy "8" plug at the second end. This fits into the charger "central box" after you dissolve it into two parts. Now, the voltage will not degenerate onto this 1.5m distance, as the cable of that type was designed particularly for 230V transfers, but it will still be perfectly mobile. At the second side of the box, I do not plug back the 1m stock cable (or longer not-official ones), but a cable that the Samsung provided along with an external battery, which is possible to buy here and there... It is about... 20 cm long The purpose of this was to avoid the energy lossess that occured when using longer cables and preserve the maximum possible charging rate. Since then (and about 5 months has passed) I have no further problems with charging, and the battery life seems to be much more better than I supposed it to be after over a year of really extensive usage (the only issue of above solution is that the plastic box in the middle is making really really hot, but it is not a critical problem i suppose, as since 5 months it HASN'T melted, exploded or something )

hay....i have the same problem but this tablet doesnt get charging
i think its not about charger because it gives 5v and 2A after the usb flat but in battery connector i got no current and there is just less than 1V voltage

Back of phone producing 24v AC when charging

Hello,
For a while now I noticed that when my Xperia XZ phone was plugged in, the metal back of it had a somewhat different feel as if it was textured. Today I decided to test it with a meter to ground to see what the potential was. It delivers a 24 V AC charge when plugged in. It is always delivering 24v and the current is extremely low. This occurred with both the official charger and cable, and an anker charger with anker cable. Does anyone else get this? How on earth would a phone getting a DC charge put out 24V AC?
To test just plug your phone in and lightly drag your finger along the back. Do the same with it unplugged. If your phone is the same as mine you will feel a texture like feeling when it is plugged in, and none when it isn't. I can't see this being a defect as it would have to transform DC somehow to get the AC power. Strangely too my phone now always says that it is providing power as a USB device perhaps that is an issue.

That's common, it's the battery grounding itself via the back metal panel of the phone.
It happens in many phones and usually laptops or tablets, nothing dangerous or defect.

Happened to me once, I reconnected the charger to another socket & it was fixed. Never happend to me ever again.
This phenomenon is called Current leakage, although it might not be hazardous as the current is very low but any sort of leakage could be dangerous.
I would suggest changing the charging socket. If that doesn't work maybe you should try to change the wire & the charger and see if it happens again.

Are you using the original charger? It is likely to happen if the ground pin of the charger is actually not 0V.