Battery drain after water damage and repair - Nexus 5 Q&A, Help & Troubleshooting

So my nexus 5 took an unfortunate trip into the ocean with me a month back. It was fairly dead. I couldn't get it do much of anything, even after complete disassemble, a flush with distilled water, then alcohol, and an extended multi day drying time that started with 4 hours in direct sun, then 44 hours in a rice bag.
I was messing around with it the other day, and got it booting, but the touch screen was dead. I was able to use if fully with the help of an OTG cable, usb hub, keyboard and mouse. I decided since everything worked great, I would order a new screen and a new battery(since the battery was draining very fast).
So i ordered a completely front panel assembly, including bezel, touch screen and LCD and I ordered an OEM battery. I installed the parts carefully once they arrived, everything was working fantastic! Well..... almost. The battery drain was still there. I would loose 4%-8% in airplane mode, and had 0 wakelocks. So i disassembled again, cleaned all the boards again in warmed distilled water and a tooth brush, then flushed with alcohol, and put in rice for about 48 hours. I reassembled, did a complete format from fastboot and reloaded everything from a google factory image. The battery still drained 4%-8% per hour, even in airplane mode. I disassembled again, and disconnected everything besides the battery, the charge board and the LCD cable. Performed a factory reset, booted up and didn't log into anything or touch anything. Put the phone in airplane mode again, still draining 4-8% per hour, with NO screen on time and no wake locks.
I figure 4 things could be going on.
1.) Main board is fried
2.) Charge board is fried.
3.) The original OEM battery was draining fast because the LCD was water damaged, and this "OEM" battery is a really bad fake with extremely small capacity?
4.) This LCD is somehow causing a battery drain even with screen off because if a cheap fake?
Having said that, the LCD looks and works great, and the battery looks great, just like an OEM battery.
If anyone has any suggestions please let me know.

Better off replacing water damaged phones

He's right this time. Could be almost anything, especially after exposure to salt water.
Sent from my Nexus 5 using Tapatalk

Op did you buy the moto maxx?

@urushiol

dicecuber said:
Op did you buy the moto maxx?
Click to expand...
Click to collapse
I take it you saw my thread over at:
http://forum.xda-developers.com/dro...xt1225-umts-hsdpa-bands-t3106760#post60811984
Not yet, I am worried about that 900mhz band support and can't find a clear answer. It looks like it does work on 900mhz UMTS, but that its just not advertised in Brazil. I want to be sure though, its an expensive phone.

Wanted to add, i narrowed the nexus 5 issue down to a mainboard issue. I setup airdroid on the phone, powered off, disconnected there screen and charge cable, powered back on and accessed the phone via airdroid.
Still drained just as fast, so the issue must be mainboard or battery. And since it did it with the old battery, i assume its the main board. I would love to find one for cheap, but they seem scarce.
If anyone has a D820 main board, or knows where I can find one, let me know. I would pay 80 bucks. Would pay 50 dollars for one with a dead ESN number so long as everything else worked.

Related

Horrible battery life after washing cell phone

My gf washed my phone. It had like 7% or less when it went into wash. Full cycle.
I took battery out, put in rice for like 2 days, then I put it in warm place, on dash of car in sun for 20 minutes at a time in between delivering pizzas, ect....
I throw away the battery, and I use one of my back-up HD2 batteries. I use the external charger to charge it.
I boot it up, and it works! Touch screen, buttons, internet, speaker, camera! EVERYTHING. The screen after 2 days even looks perfect. No discoloration.
One issue.....
Battery drain. It loses like 1-2% battery per minute, even in airplane mode and screen is off. It won't last more than 40 minutes with moderate to low usage.
I plugged it into USB via my pc when it was at 15%. An hour passes, and now it's 3%. I confirm that it is plugged in, and the "charging" animation happens.
It's not the battery, because it's brand new.
What is the issue? Is it a short? Can I fix this? The phone is 100% working condition except for the horrible battery life.
I appreciate anyone's insight into this issue....
I had a similar issue on an older HTC Elf way back in the WM6.1 days(... lol 'way back').
I hope you have insurance and a friend who can sell it that it's not your fault to get you a new phone for free cause this is probably damaged some component inside the phone. Fixing it your self is pretty much impossible since it's not encouraged at all (there is very little support resources) and the manufacturer isn't just going to sell you parts to fix your phone.
If you don't have insurance I wish you the best of luck anyways.
(However I hope I'm wrong about all this, but I'm pretty sure I'm right. :\ )
chrisportela said:
I had a similar issue on an older HTC Elf way back in the WM6.1 days(... lol 'way back').
I hope you have insurance and a friend who can sell it that it's not your fault to get you a new phone for free cause this is probably damaged some component inside the phone. Fixing it your self is pretty much impossible since it's not encouraged at all (there is very little support resources) and the manufacturer isn't just going to sell you parts to fix your phone.
If you don't have insurance I wish you the best of luck anyways.
(However I hope I'm wrong about all this, but I'm pretty sure I'm right. :\ )
Click to expand...
Click to collapse
Yeah....no insurance unfortunately...
I know the phone is going for $295 shipped NEW on ebay at the moment, but still...
I don't know if I want a new HD2 or if I should just wait a month or two until the Samsung Hercules comes out.....
You are lucky that your phone is working....it seems there is some short on the board...which is difficult to repair as most of these have 7 layers PCBs....sell it off and get a new one..
nice that it still works.. sounds like a short though if your battery is getting drained.. tough stuff is even if you dry it completely the water leaves residue on the circuitry. even if you get rid of the battery draining, the circuitry is more vulnerable to further damaging all on its own

Battery Problem, possible motherboard damage ?

Hi all
I have had my nexus 5 for a while now and just as i was flying overseas some strange things happened.
First the vibration stopped working which i knew was a loose connection on the back of the phone. Holding that area down would get it working again. Then the touch display stopped working. The LCD worked but could not touch anything to unlock the phone. I disassembled the phone and assembled it again and strangely it worked again although i didnt see anything obvious. Then is happened again...
I disassembled the phone and played around with it for a while and noticed if pressed down on the connection where the flex cable connects to the motherboard it would work again. but when i would release the pressure it would be funny again. I did this a number of times until eventually the whole LCD/blacklight should shut off. Now i can rarely get it to display anything. The phone is working because the LED light would flash and i can hear the messaged coming through. I just cannot see anything.
I replaced the flex cable with a new one and still the same issue. I replaced the LCD + digitizer + frame and still the same issue. I guess its the motherboard. Can i fix this ??
Now for some more issues:
I bought a broken Nexus 5 while overseas and i swapped the motherboard out and everything works! So it as definitely the motherboard. However, the second motherboard is having issued the the battery. I have every indication the battery is charging. However the battery percentages is stuck on 40%. It would flicker around 39% 40% instantly and when looking at the battery graph on the phone it is noisy, it is not a constant line. The percentage is not a true indication of the battery charge. I cannot get the phone to turn on just by the battery itself no matter how long i charge it for. I have swapped batteries out and i still get the same issue. I have swapped flex cables and still the same issue. Could it be that the second motherboard is also damaged??
I used the amphere app for a while while i had some power and it shows 100mA while charging but a voltage of 0V! When I unplug the cable it will shutoff. Sometimes i cannot even boot it up while charging.
Amphere showing 1%
h**ps://drive.google.com/open?id=0B9KF5ld-Rlu_VWY2eHA5VXE4R3M
What is wrong with these two motherboards?! I do not see anything obvious on the board itself.
I now see the new Nexus 5X is out but i am hesitant in buying it...This is the first phone i have had major issues with.
PS, i gave the latest updated
Thanks for your help guys. I will provide whatever information i can.
It sounds like your 1st phone is having the same problem I have with mine, which is described here: http://forum.xda-developers.com/google-nexus-5/help/main-board-socket-flex-cable-super-t3217281
Use a magnifying glass to see if any pins on the socket are broken. I still don't know if it's fixable.
ourandroid said:
It sounds like your 1st phone is having the same problem I have with mine, which is described here: http://forum.xda-developers.com/google-nexus-5/help/main-board-socket-flex-cable-super-t3217281
Use a magnifying glass to see if any pins on the socket are broken. I still don't know if it's fixable.
Click to expand...
Click to collapse
thanks for that. I believe this is the same problem also.
Although i cannot find any abnormal pins...
Macro shots of suspect connection:
https://drive.google.com/folderview?id=0B9KF5ld-Rlu_S2hwUDhlQUJlN2c&usp=sharing

S6 water damaged - what needs replacing?

My girlfriend (about 8 months the ago) dropped her S6 in water. In her "wisdom" decided putting it straight on charge would help dry it out
I have since explained why that was bad.
I've found the phone, in my broken phone drawer and decided to look inside, expecting to see a swollen battery or something. My question would be; what's likely to have gone poof? Battery, lcd, motherboard or all the above?
8 months later, there's no LED's that light up, nothing appears on screen and charging it heats it up quite fast. I've also tried wireless charging, that does the same but slower.
Any tips would be appreciated.
Edit - phone was 4 days old
Not rooted, fully stock
irscotty said:
My girlfriend (about 8 months the ago) dropped her S6 in water. In her "wisdom" decided putting it straight on charge would help dry it out
I have since explained why that was bad.
I've found the phone, in my broken phone drawer and decided to look inside, expecting to see a swollen battery or something. My question would be; what's likely to have gone poof? Battery, lcd, motherboard or all the above?
8 months later, there's no LED's that light up, nothing appears on screen and charging it heats it up quite fast. I've also tried wireless charging, that does the same but slower.
Any tips would be appreciated.
Edit - phone was 4 days old
Not rooted, fully stock
Click to expand...
Click to collapse
Most likely the motherboard has short circuited, lcd may be intact but for sure battery and motherboard would need to be replaced. But as with water damaged phones, it's a bit of a throw of the dice as you won't know if one thing is fixed until you fix another.
Thanks for the response.
Im just trying to gage whether or not repair is worth while to sell the phone. The mother board alone is between £50 & 170,with the 50 pound option rated as a test only piece. I think I'll just get rid, thanks!

Can a (going bad) battery cause the phone to boot loop?

Original battery.
Stock 5.01 (still) rooted.
The battery is fully charged.
LG logo, AT&T logo (and sound) then reboot. Repeat.
Just under a year ago, I bought 2 new batteries with external charger (Power Bear) because I felt the original battery was not lasting as long as it had previously. The new batteries seemed to deliver about the same time as the original so since then I've been rotating the three- charging using the external charger exclusively.
Around six months ago, I noticed that when the battery would reached to about 6,7 or 8%, I would be at risk for a "spontaneous" reboot, then a boot loop as described above. (this can occur w/the new batts too)
I quickly determined it was time to swap the battery and that's it.
In the past two months, THAT behavior has began to sometimes manifest itself with between 15-19% battery life. I thought, 'OK. Move on, the battery gauge is probably not accurately reflecting what's really left in the battery any longer.'
NOW, the original battery, though fully charged, is causing the circular reboot upon being inserted.
Can a battery "go bad" in this type of manner? Without really exhibiting significant "performance loss" (read: usage time)?
I'm thinking the orig battery can no longer deliver the proper current, or something like that.
To be clear, the other two batts work fine.
Anyone ever heard anything like this?
*edit:
An interesting piece of info: If I leave the phone plugged in to the charger, it DOES boot up fine and stay up. The second I PULL OUT THE PLUG, it reboots, and so on....
Yes it’s very very common. And is usually a battery issue. When it comes to the G3 anyway
Sent from my iPhone using Tapatalk
Did you ever figure it out? If it's not a battery issue maybe it's an LG motherboard issue, like everyone else who's had their G3 close to 4 years. In that case, do what I do, stick the LG G3 motherboard ONLY into the OVEN and BAKE it for 10 mins @ 360 degrees. Believe it or not, baking solves many of the problems, not charging, boot-loop, not turn on, blue screen, freeze ups, etc. I have 2 LG G3's, 1 AT&T and 1 TMobile, that I do this with. I can go weeks without having to bake them again but then sometimes when I'm driving and need my phone the most, it dies, won't even turn on. So it's not a permanent cure because it'll happen again, no doubt, the question is, how long...I laughed when someone said oh, just bake the motherboard. Well, come to find out the type of solder they used on the motherboard melts at a lower temperature so when it gets too hot some chips lose their connections, thus by baking it I guess it reseats the chips. Hey, it works every time after I bake it so I can't knock it.
Either way, give it a shot, it can't hurt your motherboard and if it fixes the problem, at least you'll know how to fix it and think about getting a new phone, like myself, lol. Instructions are quite simple.
1...Take back off
2...Battery out, Sim out, SD out
3...small philips head, remove 12 screws from back, the screw next to camera does not have to be removed.
4...remove both rear-housing assemblies
5...Remove motherboard by disconnecting the rear camera connector, front camera connector, lcd screen connector, and the touchscreen connector.
6...Now remove the motherboard, hold back the connectors when lifting the motherboard out. Do not bend or break the connectors.
7...Take the motherboard, piece of tinfoil or parchment paper (i prefer tinfoil), lay the tinfoil on a baking sheet/cookie sheet, and then place the motherboard on the tinfoil with
the CPU facing up. Pre-heat the oven to 360 degrees, when it beeps, put it in for 10mins. After 10 mins, pull it out, turn your oven off, let motherboard sit for 15 mins and put the phone back together. Be careful snapping the connectors back into their places.
8...Be surprised when your phone still actually works after doing something like that to it.
I actually just baked mine again last night.
Good luck.

How to check dissembled Pixel 4a Mainboard?

Hi all,
I ditched my phone in water.
I disassembled the whole phone, cleaned everythign with IPA and dried it afterwards. Now I would like to check if the mainboard is still working.
I connected the battery, display and usb port to the mainboard and plugged a charger in -> no response (display black, no vibration, sound etc)
I assume that the batterie is completly dead as it discharged until it turned off.
Is this aready a clear sign for a broken mainboard or does it only boot when fully assembled? Just want to avoid to put more effort into the phone, e.g. replacing the battery etc if its already lost...
Thanks in advance!
Dry for at least 72 hours in a warm dry room with a fan on the mobo. The BGA chipsets can dry slow.
Isopropyl is hygroscopic so it's important to remember it may attract some moisture from the air while drying. Use only >92% or greater, 96% is best. Submerged the board in it for a couple minutes while moving it around.
Battery needs to be charged and good for the phone to boot.
Out of circuit the mobo especially is sensitive to ESD damage. Use your best judgment but more assembled is better than less assembled unless very familiar with the device.
Thanks for the reply! Phone is "drying" for two month now as I was already considering as "lost" after disassembling and no luck with first checks. But before getting the new 6a, I want to give it a last try Was just 7 month old when I dropped it :/
When I plugged the charger in, there was no sign of charging. So not sure if the batterie is broken or if its coming from the board, or both.
A new battery is quite expensive just for a test / to find out more is damaged.
Helikoptermann said:
Thanks for the reply! Phone is "drying" for two month now as I was already considering as "lost" after disassembling and no luck with first checks. But before getting the new 6a, I want to give it a last try Was just 7 month old when I dropped it :/
When I plugged the charger in, there was no sign of charging. So not sure if the batterie is broken or if its coming from the board, or both.
A new battery is quite expensive just for a test / to find out more is damaged.
Click to expand...
Click to collapse
If the battery sat near its auto shutdown voltage for 7 months it's DOA.
A charger likely won't supply enough current to boot.
The fact that it does nothing when connected to the charger is a bad sign.
Check for loose connectors, bent connector pins, etc.
Examine the mobo (power section especially) and connector pins closely for corrosion damaged caused by electrolysis.
Since you can't see the BGA pads if there's corrosion there...
Water exposure; power off immediately and pull the battery asap to limit damage. Salt or brine water is a death sentence though.
Anhydrous isopropyl alcohol is an excellent drying agent but it and any solvents can't be used around LCD's; it will irreversibly poison them.
LCD's are vented to atmosphere on the sides...
blackhawk said:
Water exposure; power off immediately and pull the battery asap to limit damage. Salt or brine water is a death sentence though.
Click to expand...
Click to collapse
Thats true, happened at work so I could do anything for the whole day and in the evening it was already dead. With some random screen on and offs during the day and "booting into fast mode" or something similar during the day.
Phone was not reacting to switch it off normally, screen was black and buttons did not react either
blackhawk said:
Anhydrous isopropyl alcohol is an excellent drying agent but it and any solvents can't be used around LCD's; it will irreversibly poison them.
LCD's are vented to atmosphere on the sides...
Click to expand...
Click to collapse
A thats interesting, I was already thinking that some water went inside the screen. Because I have quite some dark areas on the screen, which increased in size the first days. Looked like water got pulled in. Was hoping that when the phone gets warm again it will disappear...
blackhawk said:
The fact that it does nothing when connected to the charger is a bad sign.
Click to expand...
Click to collapse
Yeah, have the same feeling. Very unlucky as it was just rain water in a not perfectly closed rain jacket...
Will check the connectors and cables again but was already quite sure that they are all clean
Helikoptermann said:
Thats true, happened at work so I could do anything for the whole day and in the evening it was already dead. With some random screen on and offs during the day and "booting into fast mode" or something similar during the day.
Phone was not reacting to switch it off normally, screen was black and buttons did not react either
A thats interesting, I was already thinking that some water went inside the screen. Because I have quite some dark areas on the screen, which increased in size the first days. Looked like water got pulled in. Was hoping that when the phone gets warm again it will disappear...
Click to expand...
Click to collapse
That sucks. Prompt battery disconnect* can save electronics (flooded cars sometimes too).
LCDs are sort of witchy. The spot may or may not disappear over time. Have an old S4 that got sunbaked while charging. The display had multiple issues, barely usable. Thought it had fried drivers. Strangely the longer it sat unused the better it got. 3 years latter it almost 100%.
*Lol, 3 years ago I dropped my Buds case in a full cup of coffee, cream and sugar of course. It promptly sank to the bottom like a lead weight.
The Li is spot welded in. Immediately tore it apart, flushed with RO water, then with anhydrous isopropyl, allowed to dry for a day.
It's still working normally today. A drank that cup of coffee afterwards too

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