Develop Bugs

[Q] HELP! F180 Not booting/Red LED blinking problem

Hi mates. I have a weird problem. Just last night I am restoring a Nandroid Backup of VANIR ROM for geehrc, which DONT have a problem with my phone. When suddenly after booting and showing the lockscreen, the phone becomes unresponsive and after a few seconds, turns off. After that, It wont boot, even fastboot or recovery wont show up. Even tried the hard reset combo, but to no avail. Download mode works, but I have not tried to flash KDZ yet. Also when I plug in the charger, LG logo shows up then a blank grayish screen, then a battery icon with charging animation, plus a label that says 0% charging. I leave it for about 4 hours, thinking that the phone might just depleted the battery. But still it wont turn on. When I turn it on while plugged in, the LED blinks in red color. The blinking is continuous. What seems to be the problem? Is it hardware or software issue? Please help me guys! :crying:

Any help mates?

Im really loosing my hope reviving my device. Tried different methods from the web. I just flashed KDZ, but the phone keeps flashing the LG logo when plugged in. When I unplug the charger, and power on the phone, nothing happens! Damn. Can anyone give an insight on what might cause the problem? Thanks in advance!

Sorry to hear about your troubles! Honestly, I have no idea what could have caused this, but if I had the same issue, and nothing worked as you described, I would probably crack the phone open, disconnect the battery and just let it sit for a day or so. Then reconnect it, and try powering up again (might need to charge it first). Who knows whether it helps or not, but it definitely wouldn't hurt, and you don't seem to have a lot of options right now...
It's interesting that the download mode still works. The common wisdom says that you should be good after flashing stock KDZ, but your experience shows otherwise...

i've experienced it before. It happen due to your battery is out of charge. What i do is, i open the case, pullout battery and install back.
After that i charge the phone. And voila...charge is on..and my hp on too. :good:

kt-Froggy said:
Sorry to hear about your troubles! Honestly, I have no idea what could have caused this, but if I had the same issue, and nothing worked as you described, I would probably crack the phone open, disconnect the battery and just let it sit for a day or so. Then reconnect it, and try powering up again (might need to charge it first). Who knows whether it helps or not, but it definitely wouldn't hurt, and you don't seem to have a lot of options right now...
It's interesting that the download mode still works. The common wisdom says that you should be good after flashing stock KDZ, but your experience shows otherwise...
Click to expand...
Click to collapse
Thanks for your feedback! It's really weird. I have flashed 3 KDZ's already. From Original F180K to E975. Nothing. Other option I have aside cracking it open is returning it to the seller fro check up. But that's the last resort. I suspect something got "unglued" while I am using it. Since the device got really hot before it happened.

mark_vyz said:
i've experienced it before. It happen due to your battery is out of charge. What i do is, i open the case, pullout battery and install back.
After that i charge the phone. And voila...charge is on..and my hp on too. :good:
Click to expand...
Click to collapse
Will definitely try this. Thanks for the advice. How long should I remove the battery?

I just removed for a second and put it back. Most probably due to battery not fit. So i just retighten it.
Sent from my LG-E975 using xda app-developers app

MitoTakatori said:
Will definitely try this.
Click to expand...
Click to collapse
Should you go ahead with it, and in case you've never opened an OG before, just a little advice... It's not difficult, but you need to watch for a couple of things:
1. Make sure you remove the SIM tray BEFORE removing the back cover.
2. Start opening it from the bottom (after removing two screws), and work your way along the sides to the top. When putting it back together, go in reverse (top to bottom).
3. Be careful around the SIM slot and the buttons when prying the cover open -- it's easy to break a thin "bridge" on the side of the cover. Just don't push on those areas.
4. When putting the cover back on, it might be a bit tricky to hold power and volume buttons in position. The easy trick is to use a piece of scotch tape on the outside, so they don't fall in.
Good luck!

kt-Froggy said:
Should you go ahead with it, and in case you've never opened an OG before, just a little advice... It's not difficult, but you need to watch for a couple of things:
1. Make sure you remove the SIM tray BEFORE removing the back cover.
2. Start opening it from the bottom (after removing two screws), and work your way along the sides to the top. When putting it back together, go in reverse (top to bottom).
3. Be careful around the SIM slot and the buttons when prying the cover open -- it's easy to break a thin "bridge" on the side of the cover. Just don't push on those areas.
4. When putting the cover back on, it might be a bit tricky to hold power and volume buttons in position. The easy trick is to use a piece of scotch tape on the outside, so they don't fall in.
Good luck!
Click to expand...
Click to collapse
Thanks a lot for the tip! Actually I already opened it, only problem left is the battery. How can I remove it?

MitoTakatori said:
Thanks a lot for the tip! Actually I already opened it, only problem left is the battery. How can I remove it?
Click to expand...
Click to collapse
I wouldn't suggest actually removing the battery, unless you absolutely have to. It's mounted by a double-sided adhesive tape, so taking it out is a bit tricky. My idea was just to disconnect it. You need to undo two screws that secure the power connector, right below the camera flash. The screws are under the plastic tape, just peel it off. When you remove those screws, carefully pull the connector up. That's it. Check the contacts for any signs of damage or corrosion, and clean up as needed. When reconnecting it, push firmly to make sure it sits properly.

kt-Froggy said:
I wouldn't suggest actually removing the battery, unless you absolutely have to. It's mounted by a double-sided adhesive tape, so taking it out is a bit tricky. My idea was just to disconnect it. You need to undo two screws that secure the power connector, right below the camera flash. The screws are under the plastic tape, just peel it off. When you remove those screws, carefully pull the connector up. That's it. Check the contacts for any signs of damage or corrosion, and clean up as needed. When reconnecting it, push firmly to make sure it sits properly.
Click to expand...
Click to collapse
Nice tip again! Thanks! Now I don't have remove the battery. Only problem left is finding the small philips screw driver. Haha. Hoping that this solve the problem. If not, bye LGOG.

Thanks for all the helm mates! My LGOG is back in action!! Thanks again! :laugh: :good:

MitoTakatori said:
Thanks for all the helm mates! My LGOG is back in action!! Thanks again! :laugh: :good:
Click to expand...
Click to collapse
Great to hear! Congrats!

kt-Froggy said:
Great to hear! Congrats!
Click to expand...
Click to collapse
Now I am running Mokee's latest build. And will flash again VANIR. Thanks again guys. Thought I have to buy a new phone.

hi, same problem... but i must search at home if i can find a tool to open the screw... i only have - and + in this size and didnt work i miss my phone ((

ok. worked for me fine! Thanks!
now 80% battery instead of 0% very cool
and now i know how it looks into the phone very good working LG...

No more charge stuck on 0% sulation
when I plug in the charger, LG logo shows up then a blank grayish screen, then a battery icon with charging animation, plus a label that says 0% charging. I leave it for about 4 hours, thinking that the phone might just depleted the battery. But still it wont turn on.
SOLUTIONS:
1st take battery out of cell.
Leave in direct sun light for 1 hrs.
Clean battery pin with soft brush.
Charge battry manualy by Desktop charger about 2 to 3 hrs.
Put battery back in phone and start charging.
It will done Insha ALLAH.

Battery Drained Rapidly Problem

Anyone encounter this problem when u r not touching your tab, and the battery drops drastically without any app running in the background? See picture for details.... see how it drops drastically in within 10-15mins at 0922hrs....

slackerz_86 said:
Anyone encounter this problem when u r not touching your tab, and the battery drops drastically without any app running in the background? See picture for details.... see how it drops drastically in within 10-15mins at 0922hrs....
Click to expand...
Click to collapse
Happened to my 8.4 Tab S once. Haven't figured out yet what caused it. It was basically after an OTA. I rebooted the tab and haven't seen it since.

Ngambek2003 said:
Happened to my 8.4 Tab S once. Haven't figured out yet what caused it. It was basically after an OTA. I rebooted the tab and haven't seen it since.
Click to expand...
Click to collapse
I rebooted alot of times m itz the same... i guess i have to reflash it again.

I had this problem when i first got my Tab S. After turning off the Automatic security policy updates i had much better battery life. Its under Settings > Device > Security >Security Policy > Automatic Updates.

Ok guys.... read this....
100% -70% in 40mins. (Listening to Music and surfing web)
70% - 50% in 20mins. (For no reason)
50% - 5% in 25mins. (Played game and installing apps)
Off it, plugged charger to it. Was surprised that it shows 48% instead. Let it charge for 2 hours. Was 87%.
On it up. Accidentally pressed the Launcher option instead of Touchwiz Home. Restarted it.
Battery shows 68%, and drop to 47% in just 3mins...
This is what I'm encountering most of the time... any ideas as to why it is like this?

slackerz_86 said:
Ok guys.... read this....
100% -70% in 40mins. (Listening to Music and surfing web)
70% - 50% in 20mins. (For no reason)
50% - 5% in 25mins. (Played game and installing apps)
Off it, plugged charger to it. Was surprised that it shows 48% instead. Let it charge for 2 hours. Was 87%.
On it up. Accidentally pressed the Launcher option instead of Touchwiz Home. Restarted it.
Battery shows 68%, and drop to 47% in just 3mins...
This is what I'm encountering most of the time... any ideas as to why it is like this?
Click to expand...
Click to collapse
Got this same problem before wherein my battery acts nuts. it would suddenly jump off from a certain percentage just like yours, sometimes, it Would show 1% and will shut itself off. Then when you turn it on, it will have at least 30-40% left. Quite annoying. Tried all battery wipe tips here. To no avail, until someone advised that he pried the back cover off only to find out a loose battery terminal . I did the same (carefully) removed the connector and reinserted it firmly. Discharged the whole battery using the tablet to around 5%. Turned it off and charge it to 100 without touching. Now it last for 2 full days (2days 10hrs) under normal usage and i'm using it as my primary phone. Listening to mp3s via bluetooth willshave off 5% in 2 hrs (with at least 20 sms sent). Playing movies in full brightness will shave off 10% (standard 2hr movie)
Before: notice the sharp, perpendicular drop - and the pulsating voltage on the last part of the graph
After: more than 5 hours, no percentage drop
Normal use, yeah, i dont use it with screen on most of the time, i simply listen to music via BT. and always on wifi
Else. If it's under waranty. Try to bring it to your service center and have your battery connector reseated for you

ThE_SoUrCe said:
Got this same problem before wherein my battery acts nuts. it would suddenly jump off from a certain percentage just like yours, sometimes, it Would show 1% and will shut itself off. Then when you turn it on, it will have at least 30-40% left. Quite annoying. Tried all battery wipe tips here. To no avail, until someone advised that he pried the back cover off only to find out a loose battery terminal . I did the same (carefully) removed the connector and reinserted it firmly. Discharged the whole battery using the tablet to around 5%. Turned it off and charge it to 100 without touching. Now it last for 2 full days (2days 10hrs) under normal usage and i'm using it as my primary phone. Listening to mp3s via bluetooth willshave off 5% in 2 hrs (with at least 20 sms sent). Playing movies in full brightness will shave off 10% (standard 2hr movie)
Before: notice the sharp, perpendicular drop - and the pulsating voltage on the last part of the graph
After: more than 5 hours, no percentage drop
Normal use, yeah, i dont use it with screen on most of the time, i simply listen to music via BT. and always on wifi
Else. If it's under waranty. Try to bring it to your service center and have your battery connector reseated for you
Click to expand...
Click to collapse
Damn i hate to send to samsung, and they will take days to rectify it here in Singapore.... any tips on DIY??

slackerz_86 said:
Damn i hate to send to samsung, and they will take days to rectify it here in Singapore.... any tips on DIY??
Click to expand...
Click to collapse
I DIY'd mine so it's possible. You need a prying tool (the one that looks like a guitar pick) simply start from the buttom (where the UsB port is) and make your way around the tablet. please be advised that some of the clamps run towards the center of the tablet so you may need to stick in your prying tool deeper. Just be careful and take your time, and try not to break any of those locks/clamps.

ThE_SoUrCe said:
I DIY'd mine so it's possible. You need a prying tool (the one that looks like a guitar pick) simply start from the buttom (where the UsB port is) and make your way around the tablet. please be advised that some of the clamps run towards the center of the tablet so you may need to stick in your prying tool deeper. Just be careful and take your time, and try not to break any of those locks/clamps.
Click to expand...
Click to collapse
But will it affect the usb port in any way? and will the cover stick back as before...?? Will there be any warranty stickers inside that will be affected prior to this DIY??

slackerz_86 said:
But will it affect the usb port in any way? and will the cover stick back as before...?? Will there be any warranty stickers inside that will be affected prior to this DIY??
Click to expand...
Click to collapse
No warranty sticker found on mine. Prepare a double adhesive tape since some of the back cover part (near the IR blaster) is held by a non-fixed adhesive. Just be sure to angle your pryer towards the back cover and be careful not to wreck any of those clamps

ThE_SoUrCe said:
No warranty sticker found on mine. Prepare a double adhesive tape since some of the back cover part (near the IR blaster) is held by a non-fixed adhesive. Just be sure to angle your pryer towards the back cover and be careful not to wreck any of those clamps
Click to expand...
Click to collapse
Heh... i ald broke one clamps. Lol!!! Anyway i realised something. The battery connector (in the pic i posted here now), the metal connector which is out of the box, is connected to the mobo. But i had to press it down. If i don't the tab doesn't starts at all. Is there supposed to be anyting there to hold it tight between the back cover and the part there?

This is the connector from battery. Sorry my drawing is not perfect

slackerz_86 said:
This is the connector from battery. Sorry my drawing is not perfect
Click to expand...
Click to collapse
Yes. You could carefully lift that up. And reinstall it - it would reset your clock though.

ThE_SoUrCe said:
Yes. You could carefully lift that up. And reinstall it - it would reset your clock though.
Click to expand...
Click to collapse
But the thing is, even if i lift it up, it doesnt connects the pin to the board....

slackerz_86 said:
But the thing is, even if i lift it up, it doesnt connects the pin to the board....
Click to expand...
Click to collapse
check out for blockage or any thing that hinders the wires to sit properly with the board. when i lifted mind before, there's a small chunk of plastic material the broke off the connector and went straight to the board where the connector is suppose to sit, i removed it then i sprayed contact cleaners on the wire-terminals before re-seating it on the board would you be able to take a photo of your board/contacts?

ThE_SoUrCe said:
check out for blockage or any thing that hinders the wires to sit properly with the board. when i lifted mind before, there's a small chunk of plastic material the broke off the connector and went straight to the board where the connector is suppose to sit, i removed it then i sprayed contact cleaners on the wire-terminals before re-seating it on the board would you be able to take a photo of your board/contacts?
Click to expand...
Click to collapse
i am on my way home. will be back in 2 hours time. what i can tell u is that i had to put something on top of the box connector so that when i put back my back cover, it makes contact to the board. if i dun, my tab will never turn on....

1st pic: As u can see, i accidentally broke one side of the holder.... lol!!!!
2nd pic: Even thou it looks like itz touching, actually itz not. No matter how i try to it just wouldnt touch.
3rd pic: i have to fold a small piece of paper to make it as a tightener between the cover and the connector to make it connect to the board. The one that does not connect properly is the left side.
If problem still persist i guess i really got a defective battery. Will get a replacement when spare parts are available on market. I don't wanna spend fortunes on samsung repair center.

slackerz_86 said:
1st pic: As u can see, i accidentally broke one side of the holder.... lol!!!!
2nd pic: Even thou it looks like itz touching, actually itz not. No matter how i try to it just wouldnt touch.
3rd pic: i have to fold a small piece of paper to make it as a tightener between the cover and the connector to make it connect to the board. The one that does not connect properly is the left side.
If problem still persist i guess i really got a defective battery. Will get a replacement when spare parts are available on market. I don't wanna spend fortunes on samsung repair center.
Click to expand...
Click to collapse
oh my, you pry the board off, that needs to be re soldered.
disconnected terminal

This is the whole thing when i opened up my cover. That iz y i say the whole thing is out.... it is already like that.

same problem ?
I think I have the same problem.. I'm just scared if it is because I rooted my device...
I have bought a otg cable to connect my ps3 controller to my tab s . That's drained my battery in a record time but I wasnt thinking it was problem.
I played with my ps3 controller and tablet until it shutdown iteselft. I plugged my tab on the wall right after and it shown 45% ... I restarted and sames battery life was showing. The app I used is sixaxis enabler.
I let it charge up to 90 % and watched movie. The battery drained quickly too..
Will do somes tests to be sure if it is normal or not...
Ah before to forgot I watched movies before and the battery seems to have decreased quicker.

[Q] Is it the Battery or is it something else?

Hi there.
My Mother has a One V which she is really happy about. But recently she says that it has been draining the battery so fast. At first i didnt really believe it (you know old people and tech), and asked if she had charged it correctly. She then told me that the charging process was also quite strange.. She had plugged it in one night, and the phone displayed that it was charging.. Then 8 hours after, in the morning it had only charged 2% ! This doesnt happen all the time, but only some times.
Now she has given it to me and hope that i can fix it. At first im just going to factory reset it, even though i dont think that is the problem. But i have noticed that what she is telling me is true to some extend. I have had the phone sitting on the table all night. No simcard and no nothing.. It had only used about 5%, but as soon as i began using it, to take backup and prepare for the reset oh boy.. It uses 1% in merely seconds! Approx 26 seconds per 1%!
I think this is rather strange and im unsure if the battery is the problem.. Do you guys have any ideas ?

Oh and i have to say that the phone is running newest stock software. It has never been rooted or anything like that.

Well, the charger port is probably bad. My first htc one m8 and my droid incredible 2 both have weak ports on them from the factory. Send it in for warranty and say nothing < about a possible bad charging port if it still has warranty. And, if nothing Less try a brand new charger, and see if that one works and if it's loose when it's plugged in. If it Is loose with new charger it's a bad charger port.

Yeah this confuses me as well. It happens once every few months. The battery drains really fast and charging is extremely slow. The first time this happened my One V dropped from 100% to 27% in 20 minutes! And just like it randomly happens it randomly goes; battery consumption goes back to normal after a day or two.
A possible reason is the charger and USB cable that is used. My cable is worn out so that might be why charging is slow but it doesn't explain why the battery drains so fast even when the phone is disconnected from the charger. So the only reasonable explanation would be some hardware problems in the battery pack.
But this is all just me guessing... I don't know for sure.

tylerleo said:
Well, the charger port is probably bad. My first htc one m8 and my droid incredible 2 both have weak ports on them from the factory. Send it in for warranty and say nothing < about a possible bad charging port if it still has warranty. And, if nothing Less try a brand new charger, and see if that one works and if it's loose when it's plugged in. If it Is loose with new charger it's a bad charger port.
Click to expand...
Click to collapse
It could be the charger port. I tried cleansing it with a toothpick (heard dust could be the problem), but the problem persists
swhatevers said:
Yeah this confuses me as well. It happens once every few months. The battery drains really fast and charging is extremely slow. The first time this happened my One V dropped from 100% to 27% in 20 minutes! And just like it randomly happens it randomly goes; battery consumption goes back to normal after a day or two.
A possible reason is the charger and USB cable that is used. My cable is worn out so that might be why charging is slow but it doesn't explain why the battery drains so fast even when the phone is disconnected from the charger. So the only reasonable explanation would be some hardware problems in the battery pack.
But this is all just me guessing... I don't know for sure.
Click to expand...
Click to collapse
The problem here is that it happens every second time or so the phone is charged at the moment. But i have bought a new battery and will try and change it. Ill write here how it goes and if there is a improvement, so that you know where the problem relies if you are thinking about doing the same.

Same problem here. Every few months the battery drops from > 50% to 2% or so. This happens within some minutes and my phone gets really hot.
But normaly I use it with a 2 amp charger and I think this happens more often if I use chargers with 1 amp.
Edit: This happened for me with every rom I used.

I changed the battery two days ago, and i can already feel a huge improvement.. 8 hours ago i took it out from the charger. Data and Bluetooth has been on all day. Been browsing a little, and sent som SMS and stuff like that.. 65% now.
The conclusion must be that in my case at least, it was a battery hardware fault.

I'm also thinking about replacing my battery, was replacing it easy?

jonas2790 said:
I'm also thinking about replacing my battery, was replacing it easy?
Click to expand...
Click to collapse
Yes it was actually pretty easy. Although i have done it on my One S too, and that was even easier.
Some recommendations: Get your self a repair tool kit before you start. Everything has been so much easier for me after i got that. It is all the money worth it . This is what i got http://www.ebay.co.uk/itm/261399617620?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT <- They ship worldwide.
The battery i brought : http://www.ebay.co.uk/itm/321303229844?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
First i took the plate off at the bottom of the phone (the one where there behind is sim card and sd card). Unscrewed all six screws. Once done you can take all the plastic off the large plastic part (the one below the simcard and sd card when inserted, and covering everything behind the outer cover). This part is also taped/glued, but should not be a problem to get off.
After you have taken that off, use a pry tool to pry the plate open around the camera lens and flash (beware that this plate is also taped together. Unscrew the last screw behind.
Now comes the tricky part. You need another more solid pry tool to pry the lcd/board out from the front. Use the pry tool in between the screen and the cover of the phone, and all the way around. The LCD and board needs to come out from the phones front.
After that the battery becomes visible. There is nothing special to getting the plug out for it as far as i can remember and should just be pulled towards the battery to get it out. Battery is glue to the inside of the phone, but using the solid pry tool you should be able to get it out. If you order the battery i linked to, it comes with new 3M tape.
Heres a video showing it pretty good i think:
https://www.youtube.com/watch?v=gPasbSobzwA

Da9L said:
Yes it was actually pretty easy. Although i have done it on my One S too, and that was even easier.
Some recommendations: Get your self a repair tool kit before you start. Everything has been so much easier for me after i got that. It is all the money worth it . This is what i got http://www.ebay.co.uk/itm/261399617620?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT <- They ship worldwide.
The battery i brought : http://www.ebay.co.uk/itm/321303229844?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
First i took the plate off at the bottom of the phone (the one where there behind is sim card and sd card). Unscrewed all six screws. Once done you can take all the plastic off the large plastic part (the one below the simcard and sd card when inserted, and covering everything behind the outer cover). This part is also taped/glued, but should not be a problem to get off.
After you have taken that off, use a pry tool to pry the plate open around the camera lens and flash (beware that this plate is also taped together. Unscrew the last screw behind.
Now comes the tricky part. You need another more solid pry tool to pry the lcd/board out from the front. Use the pry tool in between the screen and the cover of the phone, and all the way around. The LCD and board needs to come out from the phones front.
After that the battery becomes visible. There is nothing special to getting the plug out for it as far as i can remember and should just be pulled towards the battery to get it out. Battery is glue to the inside of the phone, but using the solid pry tool you should be able to get it out. If you order the battery i linked to, it comes with new 3M tape.
Heres a video showing it pretty good i think:
https://www.youtube.com/watch?v=gPasbSobzwA
Click to expand...
Click to collapse
Aah so it was the battery pack after all!! Interesting to know.
Glad it worked out for you and thanks for the battery replacement links.
My One V is retired but since the battery is cheap I will buy one and replace it just in case I ever need the phone as backup.

Tab heating up and battery drain

Hi Friends,
I took over a tab 8.0 Lte from my dad but there seems to be a big problem with it. The tab keeps heating up even in idle and battery drain is fast and constant. From full to 0, the graph is a constant downslope going flat in about 3hrs. This happens even after I hard resetted it. I open up the back and found the part that is heating up. I am starting to think that the motherboard is damaged rather than the battery need a change. The metal part is HOT. I cant touch it for more than 2 sec. Even in idle.
I attached the part in the pic, hopefully someone can help me to identify the problem. Thanks lots in advance!!

scpion said:
Hi Friends,
I took over a tab 8.0 Lte from my dad but there seems to be a big problem with it. The tab keeps heating up even in idle and battery drain is fast and constant. From full to 0, the graph is a constant downslope going flat in about 3hrs. This happens even after I hard resetted it. I open up the back and found the part that is heating up. I am starting to think that the motherboard is damaged rather than the battery need a change. The metal part is HOT. I cant touch it for more than 2 sec. Even in idle.
I attached the part in the pic, hopefully someone can help me to identify the problem. Thanks lots in advance!!
Click to expand...
Click to collapse
It seems you open the rear cover the wrong way as it still have the frame cover around the back. It should open from the front.
You don't tell exactly model , I'm not sure what it is but most of this problem is from cracked battery connector. Re solder the black battery connector will fix it.
This is the proper way to open the rear, do like you did will damage the rear cover, it won't snap back as some plastic locking tabs are broken.
https://www.youtube.com/watch?v=_I2uLqRghAg
This is the black battery connector which need to be re soldered

Ya I opened from the back.. Yes.. Realised some of the locking tabs are broken. :/ took the instructions from ifixit.. The connector looks, feel perfectly fine though..

scpion said:
Ya I opened from the back.. Yes.. Realised some of the locking tabs are broken. :/ took the instructions from ifixit.. The connector looks, feel perfectly fine though..
Click to expand...
Click to collapse
Trust me it looks fine with bare eyes but not under microscope. Re solder the battery connector will fix the quick discharge, overheating. It takes only under 5 minutes to get it done, this problem is common in Samsung tablets.

Okie.... I give it a try. My last soldering experience was like 15yrs ago....

I just opened up the tab again and have a look at the connector.. It's so freaking tiny! How on earth is someone able to do it?..? I think if I were to do it, I would solder at least 3 pins together in one shot.......

You need magnified glass and small tip iron to do the rework,
Otherwise you will short it

Speaker, Mic and Vibration not working?

Hi Folks,
I recently dropped my phone in water. Put the phone in uncooked rice for 2 days, removed sim tray, put it under direct sunlight., tried everything I could possible to dry it. After 4 days, powered on the device, it turned on fine and most of the things working as normal. I did a hardware test with *#808# and most of the tests are passed.
But Speaker, Mic (also the headphone jack) and Vibration isn't working any more. I also noticed that it is charging fine but discharging very fast, even the battery stats shows 100 to 70% as a vertical line. So, I guess battery needs to be replaced. Other than that, on normal use it is heating up.
I did some google search and few forums says, the speaker and vibration connector goes under battery and connect to the top of motherboard. Considering battery is screwed up. I guess the connector is removed or damaged may be.
Has anyone faced the same problem before or anyone can advice something?

_Saul said:
Hi Folks,
I recently dropped my phone in water. Put the phone in uncooked rice for 2 days, removed sim tray, put it under direct sunlight., tried everything I could possible to dry it. After 4 days, powered on the device, it turned on fine and most of the things working as normal. I did a hardware test with *#808# and most of the tests are passed.
But Speaker, Mic (also the headphone jack) and Vibration isn't working any more. I also noticed that it is charging fine but discharging very fast, even the battery stats shows 100 to 70% as a vertical line. So, I guess battery needs to be replaced. Other than that, on normal use it is heating up.
I did some google search and few forums says, the speaker and vibration connector goes under battery and connect to the top of motherboard. Considering battery is screwed up. I guess the connector is removed or damaged may be.
Has anyone faced the same problem before or anyone can advice something?
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You can't dry a phone completely without opening it. So if you are upto it, open it up (provided you are out of warranty) and disconnect all the connectors and clean them with alcohol or other suitable liquid, leave it to dry and then reassemble.

It's hard to guess exactly what happened inside, but it seems there are two possibilities:
- it could be that your top (main) board is damaged, which causes malfunction of connected bottom board OR
- you may have damaged both parts of the phone...
Either case, repairs won't be cheap, motherboard is the most expensive part of the phone.
I would suggest disassembling the device and inspecting internals. Corrosion should be visible.
Check some teardown videos (recommend Jerry Rig Everything or iFixit) before doing anything if you haven't yet.
Sent from my OnePlus 3 using Tapatalk

Thank you @Explorer23 and @tnsmani will do a tear down to check for visible damage part if any.

Took the phone to OP service centre, the repair guy opened it in-front of me for diagnosis. The phone was in dry condition but there were traces of water deposits. He checked few things and suggested that needs to replace mother board as there was no signal coming to speaker receiver and this will cost ~17k.
For me replacing motherboard for such a huge cost isn't of any worth.
Any suggestion if it can be repaired in someway or shall I start to think about selling/exchanging it online.