[Q] Water damage - Yellow charging/battery-warning, boots and working except touch - Galaxy S II Q&A, Help & Troubleshooting

Hi!
Friday, a girl dropped beer all over my phone.
Till yesterday, the phone would not power on, not even with charger in. I disassembled it and found that the tiny battery on the back of the mainboard was acid-ish(?), and it fell off. I "cleaned" the battery and ducktaped it back on, and now the phone boots when charging attached. It changes between af grey charging-icon and a grey/green charging-icon with a yellow warning-"!"-triangle.
I hit the turn-on-button, and i boots to the pattern-lock-screen. Screen looks perfect, but the touch is not working at all. After 30 seconds or so, it displays a low-battery dialog and reboots into charging-screen, sometimes with the yellow triangle-warning.
So my questions are:
- What internal connections/electronics would you check to see if the touch-part is damaged?
- Were is the touch-electronics/connector located?
- Would replacing the main battery solve the charging-issue, or is the problem the tiny battery on the back of the mainboard? (Actually - it is now possible to turn it on when the tiny battery is NOT attached.)
I really hope you have some ideas of how to solve this. I miss my S2!
- Jonas

It actually seems as if it is charging properly now, so my main concern is how to fix the touch-input.

Step 1. Go and find that girl and give her a nice backhand.
Step 2. Repeat step 1 until satisfied.
Sent from my GT-I9100 using xda premium

Related

[Q] Dead Razr - Weird Overheat Death! Anyone?

Hello,
I was at a concert last night, and took a few pics and videos on my phone..when I put it back in my pocket it became overheated - then the screen went blank. I could feel the heat almost burn my leg. From this the LED flashed a full variety of colours (greens,purple & white) and when pressing the power button nothing happened. It eventually started flashing red as I drove home but refused to come back on. I put it on charge when I got home where it was a very faint white colour LED. I did the manual reset (power&volume down)..nothing.
It's been on charge all night and it was just dead - no light - nothing this morning. I've charged it this morning at work, and there's a white light, sometimes faint, but trying to start it is impossible.
I'm now left phoneless as my spare phone doesn't take the Micro Sim card. I have insurance, but they want a £50 excess - I've contacted Motorola as this seems to be an internal electrical fault, but I was wondering if anyone has any hints or tips as it could be weeks before I have a phone again.
Anyone experienced / managed to sort this themselves?
Laura
Hi Laura, welcome! (I hope BRFC doesn't stand for Bristol Rovers!?)
Are you able to actually turn the phone on at all, ie get any screen to show?
I would imagine that the phone is newish, it's still covered under warranty so it may be worth contacting motorola directly to see if they are able to do anything.
When you plug it into your pc/mac and try and turn it on, does the pc pick up the phone at all?

After LCD replacement, only 3 red blinks *solution*

http://i.imgur.com/eYhCtMr.jpg?1There are many people that changed their LCD (Z, Z2 ,Z3) and then were unable to startup the phone.
Of course one might think, is the display broken, did I mess it up myself, etc etc...
Here are the symptoms. If you have the same symptoms, then this will fix your Z2!
- the phone does not boot. Black screen. Will not do anything else then 3 blinks when you press the power on
- without battery, and cable in a charger (not in computer!), will show a battery logo on the LCD
- with battery in the phone and cable in a charger (not in computer!), will make the "Im charging the battery"-light burn red and after a number of seconds (but not always?) a bit dimmed red.
- the phone vibrates if you do the trick with holding the on button and the volume button and keep them pressed (without battery), but nothing more will happen.
- adb does not recognise the phone at all. Fastboot does, but ONLY without battery
- the battery is fully charged, and NOT the problem
- you can flash, unlock the bootloader etc, but only without the battery
- changing the battery with a new one, does not solve the problem.
You have all that? Great..
- open the back of the phone (probably still open )
- take the battery out and concentrate on the part where the battery connector is.
- take a deep breath and keep calm
- solder a very tiny, thin cable from one part to the other (look at the picture).
If the picture is not clear enough, just ask, and I will answer as soon as I can.
picture : http://i.imgur.com/KWGq09J.jpg
picture 2: http://i.imgur.com/eYhCtMr.jpg?1
Thats all folks! worked for me! I couldnt believe my eyes, but it worked!
All thanks goes to Ahmed Koukou from Egypt who uploaded the solution on another forum, but without any tips and without description.
Registered specially to thank you and to confirm that it worked for me!!!
I bought a new display of Ebay. At first, I thought that it was a bad display, until I read that others had the same problem.
Thank you! My Z2 is alive again :good::good::good::good::good::good:
Hmm interesting,
- the phone does not boot. Black screen. Will not do anything else then 3 blinks when you press the power on
No 3 Blinks just a solid RED LED
- without battery, and cable in a charger (not in computer!), will show a battery logo on the LCD
No battery logo on the LCD just a solid RED LED
- with battery in the phone and cable in a charger (not in computer!), will make the "Im charging the battery"-light burn red and after a number of seconds (but not always?) a bit dimmed red.
Always a bright red led
- the phone vibrates if you do the trick with holding the on button and the volume button and keep them pressed (without battery), but nothing more will happen.
No vibration, even tried the elastic band trick
- adb does not recognise the phone at all. Fastboot does, but ONLY without battery
If only if the PC would recognise something connected. so no adb
- the battery is fully charged, and NOT the problem
- you can flash, unlock the bootloader etc, but only without the battery
- changing the battery with a new one, does not solve the problem.
Thanks i was going to try that
wow this is very similar to this post back 2 years ago
http://forum.xda-developers.com/xperia-z/help/hardware-fix-xperia-z-charging-booting-t2760911
I am going to have a look at mine
Good luck! Hope you will find a way to get the Z2 to work again!
Well i tried this trick and it worked however today after many months the phone just will no longer charge. The battery is in good condition etc but the charge is just too slow to give it enough power.
I cannot work out why it does not charge at full speed any more
My Z2 has been lying dead in a drawer for over a year now. I thought it was gone for good so I thought what the hell it can't get worse than it is so I gave this a try and it ****ing worked!!
I registered just to say Thanks. My Z2 is alive again :good::good:
it works!
It works. thank you so much. I was so attached to my z2 that I bought an original sony screen for replacement. Imagine the deception with these blinking lights. I would like to know why this needs to be done? anyone?
Hello,
after reading your solution I tried to get a very tiny cable for connecting the two points. I didn't have enough patience getting it working.
After trying it without success, I remembered in past, I had to modify AMD CPUs to overclock them. There I used a simple pencil making a line to connect them.
I didn't think long about that, then simply tried it, and had luck with it. My Z2 is now booting again! I'm happy with my solution!
Hope this will help some other people, who also don't have enough patience.
n3087
demesmaeker2 said:
http://i.imgur.com/eYhCtMr.jpg?1There are many people that changed their LCD (Z, Z2 ,Z3) and then were unable to startup the phone.
Of course one might think, is the display broken, did I mess it up myself, etc etc...
Here are the symptoms. If you have the same symptoms, then this will fix your Z2!
- the phone does not boot. Black screen. Will not do anything else then 3 blinks when you press the power on
- without battery, and cable in a charger (not in computer!), will show a battery logo on the LCD
- with battery in the phone and cable in a charger (not in computer!), will make the "Im charging the battery"-light burn red and after a number of seconds (but not always?) a bit dimmed red.
- the phone vibrates if you do the trick with holding the on button and the volume button and keep them pressed (without battery), but nothing more will happen.
- adb does not recognise the phone at all. Fastboot does, but ONLY without battery
- the battery is fully charged, and NOT the problem
- you can flash, unlock the bootloader etc, but only without the battery
- changing the battery with a new one, does not solve the problem.
You have all that? Great..
- open the back of the phone (probably still open )
- take the battery out and concentrate on the part where the battery connector is.
- take a deep breath and keep calm
- solder a very tiny, thin cable from one part to the other (look at the picture).
If the picture is not clear enough, just ask, and I will answer as soon as I can.
picture : http://i.imgur.com/KWGq09J.jpg
picture 2: http://i.imgur.com/eYhCtMr.jpg?1
Thats all folks! worked for me! I couldnt believe my eyes, but it worked!
All thanks goes to Ahmed Koukou from Egypt who uploaded the solution on another forum, but without any tips and without description.
Click to expand...
Click to collapse
n3087 said:
Hello,
after reading your solution I tried to get a very tiny cable for connecting the two points. I didn't have enough patience getting it working.
After trying it without success, I remembered in past, I had to modify AMD CPUs to overclock them. There I used a simple pencil making a line to connect them.
I didn't think long about that, then simply tried it, and had luck with it. My Z2 is now booting again! I'm happy with my solution!
Hope this will help some other people, who also don't have enough patience.
n3087
Click to expand...
Click to collapse
Happy that it worked!
I am also happy that I could help others by creating a manual.
Enjoy your reborn Z2
//Demesmaeker
Did you ever find a solution for this? I have your same symptoms...
A|ex said:
Hmm interesting,
- the phone does not boot. Black screen. Will not do anything else then 3 blinks when you press the power on
No 3 Blinks just a solid RED LED
- without battery, and cable in a charger (not in computer!), will show a battery logo on the LCD
No battery logo on the LCD just a solid RED LED
- with battery in the phone and cable in a charger (not in computer!), will make the "Im charging the battery"-light burn red and after a number of seconds (but not always?) a bit dimmed red.
Always a bright red led
- the phone vibrates if you do the trick with holding the on button and the volume button and keep them pressed (without battery), but nothing more will happen.
No vibration, even tried the elastic band trick
- adb does not recognise the phone at all. Fastboot does, but ONLY without battery
If only if the PC would recognise something connected. so no adb
- the battery is fully charged, and NOT the problem
- you can flash, unlock the bootloader etc, but only without the battery
- changing the battery with a new one, does not solve the problem.
Thanks i was going to try that
wow this is very similar to this post back 2 years ago
http://forum.xda-developers.com/xperia-z/help/hardware-fix-xperia-z-charging-booting-t2760911
I am going to have a look at mine
Click to expand...
Click to collapse
Million thanks, it worked. I had the phone broken for years and this fixed it. Though it was hard to solder.
Thank you
Just wanted to say thank you for this solution.
I had a similar issue when I put a new battery in it wouldn't turn on. I had the three blinking red lights.
No I have done this it works.
I used Car Window Demister Repair Solution liquid and it work just as well. Got a little puff of smoke but appears to be working okay now.
Again thank you for your help.
you are genius...totally work
Hello everyone. I am also desperate and I came across this solution. I bought the soldering tools however I was unable to do it so I wanted to ask you more about the process. What wire did you use to connect two points? I have 0.8mm soldering wire and it seems to be too fat for this. Also, the guy mention that he did it with pencil. How?
Thanks in advance
It helped me too. Was Xperia Z2, worked well before display replacement, battery at 3,95V, despite of it three red blinks when attempting to start, glowing red while on DC, but not charging (power consumption 0,133A though). Sometimes three vibras when attempting to Power+VolUp while on DC. Black screen only, no logo no nothing.

LG G5 not booting. 0% Battery screen

Hello,
I have been struggling to find a solution for months now. My problem with the LG G5 started when it complained about the bottom cover. Every now and then it would show a screen that the bottom cover is not plugged in correctly. By unplugging and plugging it a few times the screen would go. Eventually, although I am not sure if it is related, the phone stopped turning on. When the USB cable is plugged in I get a screen showing the battery is at 0% and the red LED flashes as well.
I have tried the following:
1) Replaced the battery
2) Replaced the bottom cover
3) Inspected the logic board and cleaned it with a PCB cleaner.
Note that the phone had no contact with water.
I would really appreciate it if someone knows what could be the fault.
Many thanks

Huawei P20 lite constantly vibrating after screen replace

Hi there,
Over the years i've done several smart phone repairs, screen replacements, batteries, new cases etc. All of them without any problems. A Few days ago a friend asked me to replace the case and screen of a Huawei P20 lite. Everything went fairly smooth, however after i finished replacing the parts and put the phone back together it does not turn on completely, only the charge light turns red and the phone is vibrating non stop while on charger.
Note: The phone has not been used +- 4 months before repair. When i remove the charger the phone dies again. Sometimes when powering up, the boot animation starts (max 2 sec) but then the screen goes black again (vibrating continues and charging led stays on). The battery was a real pain to get out, so it took some light bending to get it out. Not sure the battery is causing the issue though.
What i've tried:
- Charge the phone with different chargers/cables for 1 hour +
- Charge from low power charger for 4 hours.
- Leave the phone 2 days and try again
- Took it apart again and put it back together, exact same issue.
- Try to start the phone without battery/screen/camera's and other devices that are not mandatory, same issue persists.
- try to get in recovery etc.. no success.
Could anyone help me how to find the culprit of this issue, im really lost.. Any tips are much appreciated.
Thanks in advance!
check batery by multimeter first and if posible use other for test.
take tooth brush and clean all connectors in phone also.
Did u test screen before asembly it ? it was works ?
Hello I have the same problem and I fixed
Dear,
This is solved by changing the sense of the motherboard cable, incredible but True

Huawei Mate 10 pro - It started with a bloated battery - left with a red LED

Hi folks,
First things first: I know there are a lot of threads concerning the "red light of death" for Huawei and other devices. I already read so many of them that my head is spinning xD However, I have some questions left and I need to distract myself from getting crazy due to the possible loss of data on my phone (and I have to wait at least until Tuesday for any news regarding the phone...)
What happend?
- Phone restarted while surfing
- Went into a bootloop
- Tried a soft reset
- Tried eRecovery --> Not succesfull
At this point I had to leave the train and the phone had turned off anyway. Wanted to charge the phone at the airport and back up recent data. Removed the protective cover and noticed that the battery was bloated. Since I was afraid I unplugged the phone and came to the conclusion that the phone doesn't work due to the defective battery. Back at home I ordered a new battery - didn't help. Phone won't turn on, softboot doesn't work. I only see a solid red LED when I try to charge it. Bought another battery - nothing. Went to a repair shop: This is the point where I start to have questions
They are all very nice at this place and maybe everything will turn out fine but I just can't wrap my head around certain things.
At first they also wanted to check for a defective battery and possible repairing errors since I replaced it myself. Today they called and let me know that the new battery is alright and they now want to order a new screen module. Later today I went to their shop to ask how much everything will cost and also to ask them about the procedure. I asked them why they want to change the display. Answer: Since the battery is fine, we believe the screen cable got damaged when taking out the old battery - its a common issue because the cable is underneath the glued battery. Once the new screen module is ordered there is a good change that it'll work and we can save your data. Note that I don't have to pay for the new screen, since I said that I only want the data back and that I don't need the phone back fully working. So I don't think they suggested it for the sake of making money.
I have indicated that I suspect a hardware problem, but the guy said the motherboard is fine. He continued to explain, that since the red LED is on and the mainboard as well as the battery are fine they assume a problem with the screen.
My questions:
How can they check if the logicboard "is ok" (I asked if they can do micro soldering and since they can't I doubt they can measure the components). Are there easy ways to exclude an hardware error on the board?
Is it possible that the phone doesn't start, vibrate, is not detected by the PC all because of a faulty screen? Any ideas why the LED is visible then?
Doesn't the red solid LED indicate charging? So how come I "charge" while not being plugged in? (LED stays red all the time)
My initial problem wasn't a possibly ruined screen cable/connection but a bloated battery. It just cracked the backcover open but nothing happened to the screen --> Is it possible at all that the bloated battery killed the display module?
If anyone has read this far: It would help me if you speculate with me about the problem, share your experiences or help me in any other way. Somehow I have to pass the time until next week and I'm going insane xD
Thank you so much!
Sydney_

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