Develop Bugs

Note 8.0 only runs when plugged in - battery 100%

My Note 8 only receives power when plugged in. I have replaced the power port but problem persists. Battery shows 100% but when I remove the power cord it dies. Any help would be appreciated.

Could be bad battery or needs a power reset, open the backside cover and unplug the battery connector and wait 2 minutes, and reconnect.

I did this while installing the new power port. I have ordered a new battery. I'.lol report back with the results. Thanks for your input
fwiw I got this off eBay for $15 so I have some monetary leeway as far as repairs go.

Zweiguys said:
My Note 8 only receives power when plugged in. I have replaced the power port but problem persists. Battery shows 100% but when I remove the power cord it dies. Any help would be appreciated.
Click to expand...
Click to collapse
Your tablet only runs when plugged in even when battery is full, possibly the battery connector has some open pins. Re solder the black battery connector may fix it.
Open pins can fool your tablet the battery capacity. For example, disconnect battery cable from battery connector, plugged in and press the HOME button, it will show the green battery icon is charging, then within 30 seconds, it will show the 100% battery icon. When sensor from the mainboard doesn't see any drawing charging current , it will send the signal to charging circuit the battery is full and it should disconnect. This behavior you can test on any Samsung tablet to see if charging port is drawing current to battery connector or it's working.
Any repair shop or anyone knows how to solder can help you, this re solder only takes under 5 minutes and you only need to disconnect battery cable.
Here what it looks like when I fool my tablet by disconnected the battery while charging:
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Best, thanks for that info. I'll do,that test when I open the tablet to install the new battery.

Zweiguys said:
Best, thanks for that info. I'll do,that test when I open the tablet to install the new battery.
Click to expand...
Click to collapse
This can be bad battery or open, cracked battery connector. When change new battery, don't put back the rear cover, test if your charging port is working without battery. Then connect the battery, press the HOME button to see the flashing green battery icon. If it's OK, waiting for at least one hour, press the power button to turn on. If it's turn on, you have a bad battery.
If it doesn't turn on with new battery, then the battery connector is the source of problem and need to be re soldered.
This is the battery connector you should look for, I already re soldered this black connector by adding more solders to 6 joints:

Beut, installed new battery today with no change. I did as you suggested and the device did register 100% battery even though one was not present. The area around the battery connector appears to either have corrosion (slight) or maybe a power surge. Just doesn't look right.
I only paid $15 for this and the fact that it runs fine while plugged in I'll probably take it to work and use it to watch the EPL games on Saturdays. Maybe at some point I'll come across a working unit with a bad screen.
Thanks again for your help. Keith

Zweiguys said:
Beut, installed new battery today with no change. I did as you suggested and the device did register 100% battery even though one was not present. The area around the battery connector appears to either have corrosion (slight) or maybe a power surge. Just doesn't look right.
I only paid $15 for this and the fact that it runs fine while plugged in I'll probably take it to work and use it to watch the EPL games on Saturdays. Maybe at some point I'll come across a working unit with a bad screen.
Thanks again for your help. Keith
Click to expand...
Click to collapse
I think you should re solder this battery connector, it takes only few minutes for who knows how to solder.
Any repair shop can assist you with little charge as it's only a 5 minutes work.
Cracked battery connector is very common in Samsung tablets, not just this tablet.

Maybe I'll give that a shot at some point. I guess I can't make it any worse. The connector looks a little odd near the two red wires coming from the battery.

tab 3 / P5210 / 10.1 - charging very very slow

All,
I have two P5210 - 10.1 tablets.
Charging the 1st one with a certain charger - very fast, no issues
Charging the 2nd one with the same charger - very slow (but it charges)
Please note that I did replace the internal USB-charge-cable recently of the 2nd device because before that the tablet
did not charge at all.
Because of this I did not use the device for many months so the battery was really really empty.
How slow does the 2nd tablet charge? Well, using the charger mentioned above the battery went from 0% to 17%
in about 3-4 hours ... then I charged it overnight (7 hours or so) and it was around 28%.
Of course I do suspect the new USB-charge-cable being the issue but how does that impact this?
I mean: it charges, or it does not; If it charges then it must be connected correctly (it's hard to do it wrong).
Any ideas??
Thanks!

This tool will help you figure out, these question like this no one can have particular answer as lacking information
http://www.ebay.com/sch/i.html?_fro...usb+power+current+and+voltage+tester&_sacat=0
You have 2 identical tablets. why don't swap the battery to see any difference ?
Use the USB tester, current should be 1.5-1.7Amps, voltage should be 5.1--5.2 Volts with good cable, charger, usb charging port.
If below that readings, either bad charger or bad cable or bad USB port. The last resource is cracked battery connector, this one require skill and magnified glass to see the solder joints . This battery connector is prone to crack and is the major problem of charging. If swapping a good battery and problem persists, this is where you should look
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The worst case is defective charging circuit if resoldering battery connector cannot fix the problem.

Similar issue on GT P5200, not charging
Beut said:
This tool will help you figure out, these question like this no one can have particular answer as lacking information
http://www.ebay.com/sch/i.html?_fro...usb+power+current+and+voltage+tester&_sacat=0
You have 2 identical tablets. why don't swap the battery to see any difference ?
Use the USB tester, current should be 1.5-1.7Amps, voltage should be 5.1--5.2 Volts with good cable, charger, usb charging port.
If below that readings, either bad charger or bad cable or bad USB port. The last resource is cracked battery connector, this one require skill and magnified glass to see the solder joints . This battery connector is prone to crack and is the major problem of charging. If swapping a good battery and problem persists, this is where you should look
The worst case is defective charging circuit if resoldering battery connector cannot fix the problem.
Click to expand...
Click to collapse
I have Gt P5200 that couldn't charge or power on. Removed that part showed by the green arrow and it started to show the charging animation. Who knows the name? I want to check online if I can buy it. I need your help.
Note: the part removed is in the charging circuitry area. It would get hot when on charge, but nothing would display on the screen, and the tab couldn't power on.
Baptiste

The chip you're looking probably is the U5005, SAMSUNG IC-POWER SUPERVISOR
Part number 1203-007951
Or Q5002, Part Number
0505-002720
Description
Fet-silicon

Beut said:
The chip you're looking probably is the U5005, SAMSUNG IC-POWER SUPERVISOR
Part number 1203-007951
Or Q5002, Part Number
0505-002720
Description
Fet-silicon
Click to expand...
Click to collapse
Thank you so much for your help. It looks like the part is tricky. I may order both the ic power supervisor and the fet silicon.
I am not sure why the details on the physical part are not found online. Is it of any help if I provide the printed details here? I don't want to use a wrong part. I am afraid it might get irreparable.
Thanks a ton for your support!

Troubleshoot to component levels is not recommended as it's hard to find components and you have to know the schematic of the board.
It's best to find a broken screen tablet or working mainboard or not working mainboard to swap components like this
http://www.ebay.com/itm/Samsung-Gal...259216?hash=item3d3dd33e10:g:TjsAAOSw2kZZbcs3
This is an obsolete tablet and only worth around $70 to $80, nobody is going to spend time to fix the mainboard.

Beut said:
Troubleshoot to component levels is not recommended as it's hard to find components and you have to know the schematic of the board.
It's best to find a broken screen tablet or working mainboard or not working mainboard to swap components like this
http://www.ebay.com/itm/Samsung-Gal...259216?hash=item3d3dd33e10:g:TjsAAOSw2kZZbcs3
This is an obsolete tablet and only worth around $70 to $80, nobody is going to spend time to fix the mainboard.
Click to expand...
Click to collapse
You are soo kind. Let me order it then. Thanks a lot. Will let you know how it goes.

baptenda said:
You are soo kind. Let me order it then. Thanks a lot. Will let you know how it goes.
Click to expand...
Click to collapse
If you do it for fun, it's OK. There're a lot of new LTE/Wfi with affordable prices, like SM-P605V, around $150.
http://www.ebay.com/itm/Samsung-Gal...884969&hash=item1a31f07da5:g:Ps8AAOSwJGlZglri
There are a lot of new models which only required simple fix if you understand the root of problem. Most I bought are new models with problems and under $100.

Beut said:
If you do it for fun, it's OK. There're a lot of new LTE/Wfi with affordable prices, like SM-P605V, around $150.
http://www.ebay.com/itm/Samsung-Gal...884969&hash=item1a31f07da5:g:Ps8AAOSwJGlZglri
There are a lot of new models which only required simple fix I you understand the root of problem. Most I bought are new models with problems and under $100.
Click to expand...
Click to collapse
What do you mean by for fun? I need to swap the components and have the tab fixed. 30 USD for the mainbord is not much for the tab you showed me.
Maybe you meant the mainboard to buy might have the same issue

Fixing the mainboard just by guessing as you do, probability is 50/50 when buying another not working mainboard.
If you're lucky, it has different problem. Bad luck if it has the same problem as yours.
As in US, nobody bothers to fix these old model's mainboards because new one is not much expensive. With $150, one can buy a Note 2014 SM-P605 or Tab A 2016 SM-T580, or the Tab A 8.0 SM-T350 for only $80. However, I understand that other countries, they have no choice other than fixing whatever they have.

SM-T800 Battery problem

EDIT: Please move this to Q&A and help section.. sorry.
Hello fellow tablet users.
Since the lost 2 weeks my tablet has been acting weird. It jumps alot on the battery levels, one second having 50% then 13% then suddenly 3% then plugging in the charger it has 50%.
I've tried to charge it fully then making a battery calibration but with no luck.. what should I do next? Full reset?
Kind regards,
Ratty

If you have the 8.4" it`s most likely an bad battery connection, due to an bad power connector or the part of the connector that is soldered to the motherboard coming loose, it`s an common problem with the 8.4" with people bending it while in back pockets ect, less of an problem with the 10.5" as you would need an hell of a back pocket.
Samsung knows about this problem, and according to one 8.4" owner replaced the battery connector with an more heavy duty version, some people say to solder the battery wires directly to the motherboard.
It`s quite easy to open the Tab S, lots of video`s on youtube and you just need an plastic pry tool they call an spluger or an guitar pick, I got an spluger on ebay for £1 an replacement battery is £9 an full kit is around $60 for battery and tools if you can do the job yourself.
https://www.newpower99.com/Samsung_...tery_Kit_p/samsung-galaxy-tab-s-8.4smt700.htm
https://www.newpower99.com/Samsung_...attery_Kit_p/samsung-galaxy-tab-s-sm-t800.htm
John.

ratty123 said:
Since the last 2 weeks my tablet has been acting weird. It jumps alot on the battery levels, one second having 50% then 13% then suddenly 3% then plugging in the charger it has 50%.
I've tried to charge it fully then making a battery calibration but with no luck.. what should I do next? Full reset?
Click to expand...
Click to collapse
Reset won't solve a hardware problem, it's very common in Samsung tablets : cracked or loose battery connector : male and female.
This is a close look of female connector:
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If it's not fully contact with male connector's pins, you will have battery fluctuation in capacity. The fix is simple: push the opening closer for all six cables.
This is the male connector , it's re soldered to fix battery quick discharge or capacity fluctuation

I'm having this problem for a long time on my TabS 10.5". I think it's time to discard this device but I'm low of budget to buy a good tablet now, is it secure to open it and bypass battery using direct connection to charging cable from the original USB cable? There are some videos on how to do it, but none of this device.

They are not engineered the same as laptops. They always run off the battery, whether the tablet is plugged in or not. This is a series arrangement. A laptop has power source switcher inside and can run off either; that's a parallel arrangement.
The battery completes the circuit. The charge cord doesn't connect directly to the tablet because the battery is in between. Outlet-->charge cord-->battery-->tablet. You can't just jump over a step.The battery completes the circuit. The charge cord doesn't connect directly to the tablet because the battery is in between. Outlet-->charge cord-->battery-->tablet. You can't just jump over a step.
They are designed on an idea that the user will use it on the go, rather than sitting at a fixed location connected to a charger.
As such, the internal circuitry of a tablet allows the device to work only when the battery is connected to it.

Bypass the battery for direct connection
Hi,
I have a similar connector for the battery on a Samsung Tab GT-P5200.
I want to directly connect the (two) wires from USB power source and bypass the defective battery and the normal mimi USB connector.
Therefore can someone help me out with matching the colours?
Tere is just +-(red/black wires on USB) and the connector from the battery has two red, two bue and two black.
I presume at least two should charge the battery and other two should transport the charge from the battery. And the blue ones maybe for control?
Please give me your though, or maybe suggest other place on the bord co connect directly.
Thank you!

Idle Battery Drain - Even When Device Turned Off

Hi,
Really strange one and hoping someone can help.
I have the 10.1 Exynos, and I lose ~20% battery per day when I leave the tablet alone, even when it is switched off.
What I have tried,
1. Replacing the battery - same symptoms with a brand new battery
2. Replacing the Micro USB charging port - same symptoms with both batteries
I did a further experiment with both batteries, old and new,
1. Charge to 100%
2. Leave disconnect battery cable and leave the device for 48 hours
3. When I plug the cable back in, I have 99% charge on both batteries.
4. When I leave the device idle with the battery cable plugged in, again I lose about 20% per day when the tablet is off.
I'm really confused right now, and would like to resolve this issue so I can hand over the old tablet to a relative, as it is still a very capable device.

hello
switching off does'nt disconnet battery
some programs go on ( time, date, ..) with pseudo capacitive battery
a resistive element is still connected (a component is deffective)
regards

Understand, but 20% is a lot of battery use for an idle tablet.
Do you think there is any hope of fixing this?
Could it be something that can be re-soldered perhaps?

Are you rooted? Try Better Battery Stats. It can show what is running while it's supposed to be idle. Also, try Greenify.
Cheers,
Rich
Zico 10 said:
Understand, but 20% is a lot of battery use for an idle tablet.
Do you think there is any hope of fixing this?
Could it be something that can be re-soldered perhaps?
Click to expand...
Click to collapse

I am rooted, and no app shows up in battery stats BECAUSE THE TABLET IS DRAINING BATTERY WHILST IT IS SWITCHED OFF.
Please read the thread before you comment next time.

@Beut
Do you have any ideas??

Zico 10 said:
@Beut
Do you have any ideas??
Click to expand...
Click to collapse
Try to resolder the battery connector

Beut said:
Try to resolder the battery connector
Click to expand...
Click to collapse
Do you have any tips or guides on how to do this?
Would applying conductive wire glue work?

You can try but it doesn't make strong bond. The epoxy conductive glue may work if you don't know how to solder.
However, the silver conductive wire glue, sold in Amazon around $3/ 0.2 ml syringe works very well to fix the loose battery cables which causing intermittent power, restart, battery quick discharge ( actually not quick discharge: loose battery cables will cause the tablet read battery capacity incorrectly ).
If your battery drops then movement later it goes up or after restart, 99% you have a cracked battery connector on mainboard or loose battery cables.
This is the case, the cables doesn't make contact : two red cables ( positive ) have no contact, you will see the problem of not charging.
If one positive ( red ) or negative ( black ) cable loose its connection, your battery might drop 40 to 50% instantly.
If they're partly make contact, you might experience a boot loop as the tablet doesn't have enough power to start the system.
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This is the original battery cables before apply the glue
After applied glue, smear the glue to inside of cable as much as possible, clean with alcohol the extra conductive glue between cables , otherwise you will have shorted circuit and you might destroy the mainboard. Later on, you can remove the battery cables easily, that's why this conductive wire glue is not a perfect solution to substitute soldering.
I did fixed a Note 2014 today, it shut down at 28%. Applied the conductive glue to all six cables, reconnected it to battery connector and charger.
You can speed up the healing process by heating it with a hair dryer for a few minutes.
Do you know what I get ? The battery icon shows up with 88%, go up 60% when all cables make a solid contact to all pins of battery connector as the conductive glue fills up
all gaps between cable's terminals and pins.

switched off you mean you select the "Power Off" option?, or switched off meaning you press the power button and screen goes off?,
if the first option then I suspect when you charge your tablet its not "really" charging it trys to feed the battery but at some point it takes no more charge and it will fake the "100% charge value", and on a reboot it reads the stats again and says oh 70% charged, in anycase this could be because you are using a bad cable or a bad USB charger, try using the stock cable and charger if possible, if problems still exist try to reseat the battery by opening the tablet and unplug / replug the batter in.
if the second option then something is causing wakelock

!!!before touching the hardware!!!
Zico 10 said:
Hi,
Really strange one and hoping someone can help.
I have the 10.1 Exynos, and I lose ~20% battery per day when I leave the tablet alone, even when it is switched off.
What I have tried,
1. Replacing the battery - same symptoms with a brand new battery
2. Replacing the Micro USB charging port - same symptoms with both batteries
I did a further experiment with both batteries, old and new,
1. Charge to 100%
2. Leave disconnect battery cable and leave the device for 48 hours
3. When I plug the cable back in, I have 99% charge on both batteries.
4. When I leave the device idle with the battery cable plugged in, again I lose about 20% per day when the tablet is off.
I'm really confused right now, and would like to resolve this issue so I can hand over the old tablet to a relative, as it is still a very capable device.
Click to expand...
Click to collapse
!!!BEFORE TOUCHING THE HARDWARE!!!
TRY first just update or upgrading OS or maybe better downgrading/ flashing back to stock.
if doesn't work?
Then give a try "re-partitioning" your phone. Try searching for sometimes called "Repair Files"
You may need your "Brain" to do that. Google is "always there to help us" how.
coz I am not responsible for that. just giving my Idea
Goodluck!!! :good:

CarCE12 said:
!!!BEFORE TOUCHING THE HARDWARE!!!
TRY first just update or upgrading OS or maybe better downgrading/ flashing back to stock.
if doesn't work?
Click to expand...
Click to collapse
That was the first thing I did, and testing shows that the issue is definitely hardware related instead of software - for example, the battery will drain even when the device is powered off!
I have tried the advice of @Beut as well, however it still drains unfortunately.
I still have the tablet, but unfortunately it is largely useless to me. Though I still can't bring myself to throw it away.

Samsung Note 10.1 2014 Edition (P-601) wont accept new batterys

Hey there,
greetings from germany. Pretty sure this belongs to "Questions and Answers", if not - please hit me and move it.
I am confronted with a, in my opinion, strange problem regarding my P-601 Samsung Note 10.10 2014 Edition.
I will try to provide every action I took and what I figured out so far that noone that wants to help will need his crystal ball. But the first actions are about a year ago, so forgive me if I cant remember exactly.
Device: Samsung Tablet Note 10.1 2014 Edition (P-601)
Problem: Charging slow AF but lives, can be turned on, can be loaded via USB. (But more power is drained while using than can be delivered by charging = dies sooner or later while beeing used)
OS: LineAge OS
First I thought, EASY - get a new battery, done. Wrong.
I ordered a new battery, a (2) "vhbw" battery for "T8220E" - same mentioned on the original Samsung battery.
This is a year ago, In my belief I did get the tablet to run, and charge- but had the same problems regarding the charging speed. Slow AF - but I am not sure! Life happend, things came inbetween so I did put everything aside. Now I want to use it in my home gym, so thats why I came up here.
My next suggestion was that the charge electronic maybe the problem, so I ordered a new one, built it in. Didnt change anything. The (1) Original battery, is still charging slow af.
The new battery, doesnt do anything! If the (2) "vhbw" battery is built in, I am not able to turn the tablet on OR charge it. Its just a brick with this battery.
So what did I do? I ordered a new battery, from a well known german company trading parts like this, a (3) "original samsung battery". Guess what, the tablet does nothing.
So i thought, maybe your new charging electronic is the problem. So I put the (1) Original Tablet battery in again, and well - it runs, can be turned on and can be charged (slow af).
So the charging electronic is fine. Display is also fine.
I did confirm this several times by changing the batterys in and out, the new batterys (2) and (3) are "dead", the (1) original battery runs.
Right now I am stuck. It seems that my Tablet is blocking any battery besides his original one.
Note: I cant access Recovery Mode with battery (2) and (3). Its really dead. They where also charged atleast an half an hour, just in case they were delivered "really dead at 0%", which would be new to me because most devices or batterys come with atleast 25% battery status.
Note2: Yes I did use a ****load of power adapter and cables all in combination, same result.
Any help is really appreciated! Thanks in advance.
clyde
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Hello, I came here looking for recommendations for a new battery for my SM-P600. Could you tell me where you ordered your OEM one from?
As far as your problem, do you have a multi-meter? There are very cheap basic ones if you don't. Anyway, you can test the seemingly dead batteries with it to determine if they are in fact dead, or something else is going on.
Secondly, do you happen to have a hobby charger? With these, you can charge pretty much any battery L-ion or other. You can also do a drain test with most of these to determine the capacity of a battery. That is all I can really think of thus far. Determine if the batteries are dead. Oh one more thing you could do with the multi-meter is test the current being applied to the battery. I believe there are some free apps in the Google Play Store that can also tell you the electrical current going into the battery. Perhaps by doing this you can determine if the problem is something in the tablet itself. If I think of anything else, I will let you know.
Thanks

Hey,
thanks for the feedback.
You mean battery (3)? I ordered battery (3) from ng-mobile.de
Funny that you say that with the "dead battery", because I just had the same thought 10 Minutes ago. Those batterys were manufactured years ago I guess and were just sitting cozy in their boxes, I guess they are deep discharged. (hope this vocab is correct).
I have pretty much everything that is measured "useless" in a normal household, but sadly no multi-meter (no more). If those batterys are deeply discharged, it should be possible to be reanimated with very low charging power. The lowest I should have is a USB 2.0 Port on my pc (which were it is connected right now) or a oldschool dumb power bank without any intelligence).
I will keep this updated.

solved
It worked. About an hour connected to a USB 2.0 port of my computer, and it just popped back into live. Thanks for sharing your thoughts with me!

There have been reports of the plugs of replacement batteries for these tablets not fitting properly.
Also bad solder joints at the battery connector.
And a certain behaviour i oberved myself, requiring certain custom roms or chargers in case of my P605:
In soft-off state tablet will charge at 0,5A instead of 2A max
and
When powered on it will charge at full power until the screen switches off and it enters standby. Then no charge at all.