Fixed My Dead S2

[Stackman1]

I can't remember exactly what happened when my beloved S2 died but I do know that it no longer would power up. I always had two batteries and if used equally they could easily have been totally maxed out - although it is hard to believe they would both die at exactly the same time.

So I went on e-bay and bought a new charging port and installed it. I think I did it right. But when I plugged it in with one of those two batteried in the phone - I still get no signs of life from the phone.

Here is what I am wondering - excuse if answer is obvious:

1. If I plug the phone into the wall without a battery and the phone is healthy - should it power up? Or does a battery have to be in the phone for it to function?

Thanks
Peter

 

[creepyncrawly]

No, it won't power up into the system without the battery.

However, you can test the phone without the battery in, because it will go into download mode without the battery in because the usb cable will supply the power. So, to test the phone problem is battery related, try to put the phone into download mode with the battery removed. Hold down both volume buttons while you plug in the usb cable, -or- depress all three buttons vol and pwr when the phone is already connected to the computer with the usb cable. If you get no sign of life, then it is probably not a battery issue.

 

[Stackman1]

No, it won't power up into the system without the battery.

However, you can test the phone without the battery in, because it will go into download mode without the battery in because the usb cable will supply the power. So, to test the phone problem is battery related, try to put the phone into download mode with the battery removed. Hold down both volume buttons while you plug in the usb cable, -or- depress all three buttons vol and pwr when the phone is already connected to the computer with the usb cable. If you get no sign of life, then it is probably not a battery issue.

Thanks Creepy - unfortunately the download mode option didn't show any life either. Really disappointed. I was secretly counting on the USB charger piece replacement to do the trick. I guess that means that something other than the battery is not functional....

 

[Stackman1]

Dead S2

No, it won't power up into the system without the battery.

However, you can test the phone without the battery in, because it will go into download mode without the battery in because the usb cable will supply the power. So, to test the phone problem is battery related, try to put the phone into download mode with the battery removed. Hold down both volume buttons while you plug in the usb cable, -or- depress all three buttons vol and pwr when the phone is already connected to the computer with the usb cable. If you get no sign of life, then it is probably not a battery issue.

As discussed, I thought after replacing my usb part and still having no success that my beautiful Shostock S2 was gone for good. I went out and bought a Moto G w/LTE for $220. It is fine but I still liked the feel and particularly the camera of my S2 better. I have fixed so many things these days just by searching YouTube - sure enough - I found a video by this italian guy.
https://www.youtube.com/watch?v=MhCks3QAjz4
A bit hard to understand but essentially - you test for a short - at on prongs 1 and 3 where battery connect. If you have a short - your next step is to remove a Capacitor. I knocked pulled mine off my board with tweezers. No idea why that works but it Does!
Here is a pic of what I removed. https://dl.dropboxusercontent.com/u/108322879/S2%20Capacitor.jpg

Good Luck

 

[creepyncrawly]

As discussed, I thought after replacing my usb part and still having no success that my beautiful Shostock S2 was gone for good. I went out and bought a Moto G w/LTE for $220. It is fine but I still liked the feel and particularly the camera of my S2 better. I have fixed so many things these days just by searching YouTube - sure enough - I found a video by this italian guy.
https://www.youtube.com/watch?v=MhCks3QAjz4
A bit hard to understand but essentially - you test for a short - at on prongs 1 and 3 where battery connect. If you have a short - your next step is to remove a Capacitor. I knocked pulled mine off my board with tweezers. No idea why that works but it Does!
Here is a pic of what I removed. https://dl.dropboxusercontent.com/u/108322879/S2%20Capacitor.jpg

Good Luck

Interesting. Assuming that the capacitor is positioned between pins 1 and 3, the short would be caused by the failed capacitor, and removing the capacitor removes the short, but makes the capacitance between pins 1 and 3 close to infinite. So evidently the phone functions well enough without the capacitor. It's way beyond my knowledge to even guess why that capacitor is put there in the first place. I guess an engineer could tell us.