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Galaxy S II Sudden Death?

OP darkwoof

22nd March 2014, 07:34 AM   |  #1  
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Hi All,

I was using my phone normally about 2 days ago, then put it back into my loose shirt pocket. When I took it out a few minutes later, I realised that the phone was off. I turned it back on, and while it was on the "Samsung Galaxy S II" logo, I placed it back in my pocket to give it time to boot.

I kind forgot about it later, and when I took it out about half an hour later, I realised it was still on the same screen. Thinking that my phone has frozen, I tried to depress the power button for about 5-10 to shut it off, to no avail. I did a battery pull, replaced the battery but found that I was unable to boot the phone at all.

Thinking that maybe the battery is flat, I tried another 2 more original Samsung batteries that I had with me, both fully charged. Nothing worked. I even tried entering recovery and download modes to no avail. I also tried several other methods described in XDA including plugging in the battery while doing the keypress for download mode, both volume buttons while without a battery and sticking in a connected USB cable, and even my old USB jig. Nothing. No boot screen, nothing on the capacity buttons.

Oddly though, if I plugged in my battery and press and hold the power button for 5 seconds, then leave the phone aside for a while, I noticed that it gets warmer. If I pull the battery out, it cools down. So it seems like turning on the power does "something", but the phone wouldn't boot. Plugging it into to computer doesn't recognise it either. Neither can Odin 3 see it.

Is my phone truly dead? Or is there any possibility of fixing it?

Thanks.
22nd March 2014, 08:08 AM   |  #2  
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Replace motherboard - Samsung service centre (expensive option), or source a 2nd hand board online & either replace yourself or pay a local mobile repair shop (not Samsung service centre) to do the replacement for you (cheaper option), or new phone.
22nd March 2014, 08:19 AM   |  #3  
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Quote:
Originally Posted by MistahBungle

Replace motherboard - Samsung service centre (expensive option), or source a 2nd hand board online & either replace yourself or pay a local mobile repair shop (not Samsung service centre) to do the replacement for you (cheaper option), or new phone.

So it sounds like a defective mainboard to you? Mm.. If so I'd probably go for the 2nd or third option. Already bought a new phone, but I do have 2 SIM cards (one issued at work without a phone) and I would like to be able to use my S2 (currently using and aging Motorola Q9H). Plus there's some data I had in the internal memory and the phone does have some sentimental value.

I'll go source for a board I guess... But the flash memory will be lost with a new board wouldn't it?

Thanks for the advice!
22nd March 2014, 08:31 AM   |  #4  
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Given the majority of components that would cause a phone to simply die like that are located on the motherboard, that's the fix. As to what component(s) specifically died, nobody here could tell you that because we don't have the phone open in front of us with the gear to diagnose.

Some repairers in some countries have been flogging a 'we can just replace the individual component(s)' fix lately (as evidenced by people making threads here saying they've been offered these fixes), but this is a very tricky job that not even Samsung service centres attempt; basically, if you want it fixed guaranteed first time without the risk of potentially double paying (for the first fix that doesn't work), you replace the board.

Yes, you'll lose whatever data is in the NAND on the existing board, that's not really recoverable, but a company which specialises in recovery of data from dead HDD's may be able to help (I haven't seen a single thread on here in 2+ yrs where someone has been able to get this done though), expect this to be very expensive if it is possible.
22nd March 2014, 08:38 AM   |  #5  
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I see...

Worth a shot I guess. Samsung's CSC aren't really an option here past warranty, and the professional recovery firms here charges sky-high rates. I'm looking at motherboard replacement guides for the i9100 for now, may look for a 3rd party repair shop if all else fails. Pity, it was a great little tool. I had it running on a smooth JellyBean 4.2.2 =\
23rd March 2014, 02:28 PM   |  #6  
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I had this exact problem, what my case was that the battery died completely.
I bought a new 1800mah battery and it works fine. I can't boot with the original old one anymore, it is 100% dead (still has some juice in it)

but if you can't use other batteries (that work with the s2), then I guess your nand is dead.
Last edited by FPSUsername; 23rd March 2014 at 02:30 PM.
24th March 2014, 03:04 AM   |  #7  
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Quote:
Originally Posted by GreekBlood

but if you can't use other batteries (that work with the s2), then I guess your nand is dead.

Damn. I have 3 working batteries, one was in the phone. Two fully charged, none worked. =(

Sent from my SM-N9005 using Tapatalk

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