Hello everyone. My question is related to the pin connector and battery life:
3 months ago, i though it was moment for battery replacement of my S 8.4, but in the process i broke the 6-pin connector placed in the board. So, I tried to deal with it and charge the new battery once, with the connector slightly detached and badly soldered. It went bad since wasn't charging normally, i screwed badly the connector so had to replace it.
I ordered the new connector with an official tech support. Connector took few weeks to arrive (i live in Chile). I did the microsoldering with a lot of troubles, and after watching tutorials and buying soldering stuff, practicing and studying the possible troubles i could face, i finally did it (see the pic). Anyway I'm skeptic about what i just did XD (btw i used soldering paste for smd, really cool stuff)
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Now it's charging, after 3 hrs it went from 20 - 90%. My questions are 2:
1) considering that many experts point out that lithium battery's first charge is extremely important for technical reasons (SEI forming on first charge cycle; non full charge leads to fading over time), should i replace my battery soon, if i stored at 20% for 2 months?
2) how do i know if i soldered correctly the connector, should i consider the time it takes (normally charging cycle was around 3 hrs 30 from 0 - 100%)?
Thanks!
need help with soldering
Hi buddy , have a similar needs as yours, except in my case i did not break the connector , it broke by itself after a few months , guess a bad solder at the samsung factory itself .
So now coming to the point , i ordered a new connector and was thinking to solder it myself as service center was charging a hefty price for a small repair . Could you please guide me as to what all is required to do it properly .
li-ion battery`s dont need a forming charge on first charge.
Dont run the battery too low as the battery can fail, I don't go below 20% (I use a charge level alarm)
I don't charge above 80%(I use a charge alarm) , I have charged to 100% only 7 time in 28months(only after flashing or upgrades to calibrate the battery gauge)
i have used my T800 every day and no problems so far.
John.
Im also having the same problem...
The connector pin just came off from the motherboard...In my case..im so afraid to do the microsoldering,however i tried “reflow solder” heat up the connecter while sticking it on the motherboard for few seconds...then let it cool...yes it was succesfully connected..but its not strong enough...it just came off again when i grabbed the tablet to put on its backcover...The main reason why im scared to do the microsoldering is what if i accidently damaged other components in the motherboard...is there any other way to solve this issue other replacing the motherboard...
Related
Hello, I've had a Samsung Epic 4g Touch just laying in one of my drawers for about 6 months. This phone it was my friend's and he gave it to me since he couldn't do anything with it. Now that I'm trying to turn it on it does not respond to anything. I doubt is the battery because this lithium batteries last a lot and this phone was barely used. I've had this issue when I used to had a nexus s and it was solved by taking the battery out and holding the volume down and power button while I connected the usb cable and inserted the battery back in but that method does not work on the epic 4g so called galaxy s2. Does anybody know what could I try since the comluter does not recognise it when plugged in?
Does it show to be charging when plugged in to a wall charger? If it laid in a drawer for 6 months I'm quite sure the battery is totally dead and will need to have at least a little bit of charge on it before the phone will turn on. When these batteries are dead for an extended period of time there is a good chance that it will never be as good as new.
One man's trash is another man's treasure.
You may need a new battery. If it was stored with 0 charge for 6 months its most likely got dead cells. You should always store li-ion batteries with 40-80% charge, in a cool dry place and removed from the device.
☆SoA: Son's of Android™☆
I like to break stuff!
jaxon01 said:
Does it show to be charging when plugged in to a wall charger? If it laid in a drawer for 6 months I'm quite sure the battery is totally dead and will need to have at least a little bit of charge on it before the phone will turn on. When these batteries are dead for an extended period of time there is a good chance that it will never be as good as new.
One man's trash is another man's treasure.
Click to expand...
Click to collapse
It does not show anythign when plugged in a usb or wall charger. Im gonna go to a sprint store or cell phone store to see if the phone works with another smae kind of battery.
Found the issue is the usb not charging. Took it to a sprint store and as soon as they put in another battery it turned on but it did not charge. Now I'll need to figure out how hard is to fix the usb hub if either just some soldering or if it is the whole usb hub that need to be replaced.
Hey guys I founf the issue. When I took the phone apart I noticed the last of the prong on the left that is connected to the usb hub is damaged like burnt or maybe broken I can barely see it. Is there a way to replace it or fix it?
juan_carlos__007 said:
Hey guys I founf the issue. When I took the phone apart I noticed the last of the prong on the left that is connected to the usb hub is damaged like burnt or maybe broken I can barely see it. Is there a way to replace it or fix it?
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Cannot view the picture, sorry =\
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!
Hi my tablet is crashing every time the battery is lower than 80% (it turns off immediately) end keeps crashing every time i restart it and begin using it after 2 or 3 seconds and the battery drains every restart .Is it surely a battery problem or it could be caused by anything else?
lomlom10 said:
Hi my tablet is crashing every time the battery is lower than 80% (it turns off immediately) end keeps crashing every time i restart it and begin using it after 2 or 3 seconds and the battery drains every restart .Is it surely a battery problem or it could be caused by anything else?
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Probably you have a cracked battery connector, common problem of Samsung tablet. Re solder will fix this problem, you can verify by removing the back cover, apply directly pressure on the black battery connector and turn your tablet on; if it works, problem solved, just find someone or a repair shop to help you to re solder the battery connector.
Don't forget to fix the white battery connector too, it's also the source of problem
http://forum.xda-developers.com/gal...-flicker-screen-freezes-random-t3165471/page2
Beut said:
Probably you have a cracked battery connector, common problem of Samsung tablet. Re solder will fix this problem, you can verify by removing the back cover, apply directly pressure on the black battery connector and turn your tablet on; if it works, problem solved, just find someone or a repair shop to help you to re solder the battery connector.
Don't forget to fix the white battery connector too, it's also the source of problem
http://forum.xda-developers.com/gal...-flicker-screen-freezes-random-t3165471/page2
Click to expand...
Click to collapse
thank you for the reply I unplugged the black connector and re-plugged it and the problem seems to be fixed but i didn't find the white battery connector
lomlom10 said:
thank you for the reply I unplugged the black connector and re-plugged it and the problem seems to be fixed but i didn't find the white battery connector
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Unplugged and re-plugged battery helps to solve problem, then you may need to do this little fix of the white battery connector. I had one battery which didn't take charge, after this simple fix , it works normal again.
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You need a thin knife and magnified glass to do this fix, push the opening as close as possible.
https://www.youtube.com/watch?v=PU0OoZSbma8&feature=youtu.be
Hello,
I have several Tab Pro's that are all having the same problem. I have charged the devices to 100% then when it sits for a few days it will not turn back on. I have plugged it back in and it show 0%.
This is what i have done to try and find the issue...
1. I have reset all cables
2.Tried different batteries (USED)
3.Re-Rom with ODIN and Factory reset
4.Checked the pins on battery terminal for bad solder contacts
5.Waiting on new batteries
Now the interesting part. I charged 2 devices to 100% then disconnected the battery from the Logic board so I could check to see if the battery is discharging on its own. After 3 days I reconnected the battery terminal and tried to turn it back on. They will not power on, then I plug in the charger and battery icon shows up with 100% and then I'm able to turn it back on. Any ideas what the issues with these are I have about 8 of them all doing the same thing?
Thank you,
The battery doesn't discharge on its own so fast like your description. I have a Tab Pro 12.2 , which is off almost 3 months, when turns on it still keep the charge at 99%
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The problem is from the cracked battery connector, it will cause intermittent connection. Trust me, remove the back cover, use your hand to press directly on the battery connector while turning it on, it might work depending how bad the crack is. All you need is resolder the battery connector.
Beut said:
The battery doesn't discharge on its own so fast like your description. I have a Tab Pro 12.2 , which is off almost 3 months, when turns on it still keep the charge at 99%
The problem is from the cracked battery connector, it will cause intermittent connection. Trust me, remove the back cover, use your hand to press directly on the battery connector while turning it on, it might work depending how bad the crack is. All you need is resolder the battery connector.
Click to expand...
Click to collapse
I have tried to resolder a few of them and they still do not turn on or they discharge the battery. I have a few that I charged the batteries up to 100% and disconnected them from the battery terminal on the logic board over the weekend. They all still do not turn on, then I connect the charger and the battery icon shows up with 100% then I can turn it on. I have tried what you said and pushed on the terminals on all of the ones I have and not one will turn on. I'm starting to think there is a issue with the power management chip on the board. Has anyone tried to replace any of these?
I have had issues with SM-t/p900 12.2 pros that had the issues you are talking about, not charging, flickering screen, and the terminals needed to be resoldered. I could actually push the pins up and down. The SM-t520 pins are solid and do not move.
if you're looking for charging port fix, here is a small tip i hope could help you..
you can read all the thread or just jump to bottom line
my charging port stopped working after about 3 months of usage.
this was very frustrating, and didn't happen at once. at first i had to put the charging cable in certain direction, and later on i had to put some leverage on that direction, until eventually i couldn't charge at all.
it is known that this phone is one of the hardest to open, and once you put it on the "surgical table" it's hard to finish the job without "scars" , so i do understand those of you who chooses repair stores over fixing adventures. on the other hand, at least in my country, HTC repair cost so much that you ought to think about other options.
So then my tip is for those of you who have the willing and repair equipment.
You'd probably look for replacement charging board, which indeed are very cheap, and then just check out one of the many tear-down youtube videos explaining how to open the phone and replace the port.
i chose to fix the exist port instead.
to be honest, i also bought replacement. but not only it got damaged, i've found out after opening the phone that there are the two different boards for 32G/16G versions. so instead of buying another part, and waiting another month or so until arrival, i figured i can try and check out what went wrong with the current one.
i did use lab microscope to find out the problem, but there weren't many suspects to begin with.
turns out for 3 out of the 5 micro USB pins (the middle 3) - the connection to the board got broken.
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so i just used friend help and soldered the 5, and voilà, phone charging again..
note that -
1. the pins were barely soldered to the board. very little amount of tin
2. I've checked my USB cables and it does look like the metal connector length differ in sizes from one to another. even if not by much, it's clearly visible. so it's very likely that inserting a cable with long connector time after time just broke the connection.
bottom line,
if your charging port malfunctions, and you happen to have soldering equipment, or a friend who does, just carefully solder/strengthen exist soldering of the 5 USB pins to the charging board.
i guess you can even take the board and ask for any electronic repair shop just to solder those. will cost much less than expert store repair