[Q] Galaxy S2 Automatically Switch Off And Not Charging - Galaxy S II Q&A, Help & Troubleshooting

I am using galaxy s2 i9100.I have flashed MIUI v3 one month ago.I didnt faced any problem untill i used a htc one charger of 1100 mAh out put.After that my phone switch offs within 5 mins after switching on.Also i can't charge my phone when the phone is switch off.Any one please tell me what may the reason behind it??Is this a software or hardware problem?

Clean install of stock rom in the first instance, see if the problem persists. If that fixes the problem, it a MIUI issue. If it doesn't, replace battery and/or USB board/port - take your pick which one you try first, but at a guess it could be the USB board/port, so I'd probably do that first if it were me.

MistahBungle said:
Clean install of stock rom in the first instance, see if the problem persists. If that fixes the problem, it a MIUI issue. If it doesn't, replace battery and/or USB board/port - take your pick which one you try first, but at a guess it could be the USB board/port, so I'd probably do that first if it were me.
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Click to collapse
my fear is that is there any possibility of switch off the device while i am flashing stock through odin?

That's the risk you're going to have to take. You need to try & narrow down whether it's a firmware or hardware issue (judging by your other thread though, you seem to think it's hardware already).

MistahBungle said:
That's the risk you're going to have to take. You need to try & narrow down whether it's a firmware or hardware issue (judging by your other thread though, you seem to think it's hardware already).
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Click to collapse
I installed stock jellybean.But while i am charging it says that charging stoped due to high battery temperature and switch off again.So it will be a hardware problem na??

Yep sounds like it. Given how quick/cheap easy it is to do, I'd be replacing the USB board/port first, before you do anything drastic like replace the motherboard. You may get lucky & that might fix it, and if it doesn't, then you can look at replacing the MB.
This issue (USB replacement) has been discussed here a lot this year, search for threads about it, these should have all the info you need (which part to order, etc).

MistahBungle said:
Yep sounds like it. Given how quick/cheap easy it is to do, I'd be replacing the USB board/port first, before you do anything drastic like replace the motherboard. You may get lucky & that might fix it, and if it doesn't, then you can look at replacing the MB.
This issue (USB replacement) has been discussed here a lot this year, search for threads about it, these should have all the info you need (which part to order, etc).
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Click to collapse
When i went to a unauthorised service centre they told me to replace motherboard.But i was confused about them whether they are fooling me or not.Thats why i posted here and tried to flash stock ROM.Any way thanks for your support..Could you please tell me is there may be any possibility of replacing MB??

Yeah, of course you can replace the motherboard with a 2nd hand one. Or you can source the board yourself & pay a local mobile repair shop to do it for you (will still be cheaper than paying a Samsung authorised repairer to put a new one in).
Will this fix the phone for definite ? Nobody here can tell you that because few people here are micro electronics experts, and even if they were, they don't have the phone in front of them to diagnose.
But...if someone who does repair phones has already told you a motherboard replacement will fix it, then they'd obviously know. Up to you whether you want to try replacing the USB board/port first.

Related

[Q] Dead s2

Hey guys, sorry for another topic, however I actually do know what is wrong with my phone and know it needs to be JTAG repaired..
however... I was wondering if anyone knew the root cause of this (no pun intended).. I was flashing JellyBam v5.0 (custom [email protected]~) and mid installation, phone froze, powered down and is now bricked. Any reason why it would do that mid install? Battery was 95%+
cheers
rsr1 said:
Hey guys, sorry for another topic, however I actually do know what is wrong with my phone and know it needs to be JTAG repaired..
however... I was wondering if anyone knew the root cause of this (no pun intended).. I was flashing JellyBam v5.0 (custom [email protected]~) and mid installation, phone froze, powered down and is now bricked. Any reason why it would do that mid install? Battery was 95%+
cheers
Click to expand...
Click to collapse
Please state more details. Rom, kernel, modem, odin, cwm, etc
He did. Regardless, none of that info would be relevant/useful in this case anyway, phone's borked.
@OP - Honestly, that's impossible to say. Something hardware related in the phone, something simple like the battery contacts not making a proper connection, something on the PC side even (temporary issue with the connection b/w the PC & phone) ? The possibilities are endless.
Have it looked at by a JTAG repairer & if that can't be done, maybe try and source a motherboard from a donor phone (broken screen or whatever). That will be the cheaper option than having Samsung replace the MB if it can't be JTAG'd, even if you pay a local mobile repair shop to install the 'new' MB (if you're not confident enough to DIY).
seanwong98 said:
Please state more details. Rom, kernel, modem, odin, cwm, etc
Click to expand...
Click to collapse
MistahBungle said:
He did. Regardless, none of that info would be relevant/useful in this case anyway, phone's borked.
@OP - Honestly, that's impossible to say. Something hardware related in the phone, something simple like the battery contacts not making a proper connection, something on the PC side even (temporary issue with the connection b/w the PC & phone) ? The possibilities are endless.
Have it looked at by a JTAG repairer & if that can't be done, maybe try and source a motherboard from a donor phone (broken screen or whatever). That will be the cheaper option than having Samsung replace the MB if it can't be JTAG'd, even if you pay a local mobile repair shop to install the 'new' MB (if you're not confident enough to DIY).
Click to expand...
Click to collapse
Yeah you are right it could be anything happening within the phone without my knowledge, luckily phone was connected to mains when i was flashing using CWM so no problems there, but i don't think i will find the reason why it actually happened as you said the possibilities are endless
I'm trying to get in touch with a place that does JTAG repairs at the moment, however im just scared they say it can't be done. Havent really got the money to fork out for a new MB. I bought the phone second hand last year (april) where i was told it was only 3-4weeks old however had no old purchase details. Is there any way for me to check if the warranty is still valid or does it become void after resale? Thanks
There used to be an online warranty checker on one of Samsung's regional websites (can't remember which, maybe someone else does ?) where you could put the serial number in & get the warranty end date, but I recall people on here saying it either went away or didn't work anymore at some point last year.
But I doubt you'd get warranty service without the original receipt anyway, and even if you had it, I'm not sure the warranty is transferable beyond the original purchaser (Someone else please correct me if they know of cases where the warranty has been honoured regardless, I realise this might vary from country to country).
Unless the phone has physical damage as opposed to the NAND simply being scrambled beyond all recognition which normally happens when a flash goes wrong like that, you'd probably expect it to be JTAG'able.
If it's not, as I said in my PP, a board from a 'donor' phone would be much cheaper to both buy/have installed than paying a Samsung authorised repairer to put a new MB in (apparently they charge in the vicinity of half what a new phone would cost retail).
Edit - Re: getting a 'donor' phone for the MB, here's an example of what I'm talking about; no doubt you'll probably pick one up cheaper, just thought I'd give you an example of what to look for if you end up needing to go down that path.
rsr1 said:
-SNIP-
I'm trying to get in touch with a place that does JTAG repairs at the moment, however im just scared they say it can't be done. Havent really got the money to fork out for a new MB. I bought the phone second hand last year (april) where i was told it was only 3-4weeks old however had no old purchase details. Is there any way for me to check if the warranty is still valid or does it become void after resale? Thanks
Click to expand...
Click to collapse
MistahBungle said:
There used to be an online warranty checker on one of Samsung's regional websites (can't remember which, maybe someone else does ?) where you could put the serial number in & get the warranty end date, but I recall people on here saying it either went away or didn't work anymore at some point last year.
But I doubt you'd get warranty service without the original receipt anyway, and even if you had it, I'm not sure the warranty is transferable beyond the original purchaser (Someone else please correct me if they know of cases where the warranty has been honoured regardless, I realise this might vary from country to country).
Unless the phone has physical damage as opposed to the NAND simply being scrambled beyond all recognition which normally happens when a flash goes wrong like that, you'd probably expect it to be JTAG'able.
If it's not, as I said in my PP, a board from a 'donor' phone would be much cheaper to both buy/have installed than paying a Samsung authorised repairer to put a new MB in (apparently they charge in the vicinity of half what a new phone would cost retail).
Edit - Re: getting a 'donor' phone for the MB, here's an example of what I'm talking about; no doubt you'll probably pick one up cheaper, just thought I'd give you an example of what to look for if you end up needing to go down that path.
Click to expand...
Click to collapse
I think you're right on that one, if i don't even have proof of purchase then I don't think warranty will be valid. Thanks anyway on that behalf. Yeah it is only that one issue nothing else is wrong physically so i am hoping for the best and do believe a JTAG should get me out of this situation without a problem (fingers crossed).
On the topic of a replacement motherboard thank you very much for pointing me in the right direction if JTAG fails. Buying a cheap phone as such is a great idea and taking a working motherboard for a lot cheaper than RRP is wonderful.
Thankyou very much for your input & help ::highfive:
I have the EXACT same problem...
the ivelstre
Simmyen said:
I have the EXACT same problem...
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Click to collapse
It happened to both of us whilst installing JellyBam v5, so surely there must be a problem with the ROM? We encountered the exact same issue 100% and are both left in the same position now due to the ROM
rsr1 said:
It happened to both of us whilst installing JellyBam v5, so surely there must be a problem with the ROM? We encountered the exact same issue 100% and are both left in the same position now due to the ROM
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Click to collapse
I have the exact same problem yeah, but i know a friend of mine who used the same ROM as we did.. it worked for him though
Always try a Jig before JTAG, no harm there.
If warrantu isn't voided, make sure it's really bricked so you can claim it with the "I was updating it via wifi and dropped dead" rutine.
No probs. Just sorry we couldn't be of more help. Best of luck (Hope it ends up being easily JTAG'able for you).
rsr1 said:
-SNIP-
Thankyou very much for your input & help ::highfive:
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Click to collapse

[Q] How to diagnose cause of random reboots/shut down?

Hi all,
I recently bought an i9100 GS2 from a friend for a really cheap price. $100AU. He works for a telco and hence gets phones given to him to trial. The phone was not previously used often as he used his iPhone instead. So essentially it has been sitting around unused for close to 2 years.
My issue is: The phone tends to shut down and become totally unresponsive at random times. When this occurs, it requires the battery to be pulled in order to restart the device. The phone is also really hot at this point in time. It generally occurs when the device is on charge, however it has also happened when the device has simply been left on standby.
I have purchased a new battery (2013 stock) in order to replace the original (2011 stock) however this has not fixed the problem. The phone is also rooted with ThinkingBridge ROM (Stable 1) installed.
Does anyone have any ideas? Is there an app to track and pinpoint the cause?
Thanks.
Sent from my GT-I9100 using xda app-developers app
Clean the battery contacts in the phone with isopropyl alcohol on a cotton bud, could also be symptomatic of the USB/charging circuitry (which the battery/connections is part of) on the way out as well. Is it an original Samsung battery (Tho many people have no problems with 'el cheapo' batteries, a lot do) ?
After cleaning the contacts, do a clean install of stock to see if the issue persists to rule in/out a rom/firmware issue.
If it does persist on stock, it's probably the 2nd thing I mentioned. If that's the case, you may be able to swap the relevant board out with one from a donor phone with a broken screen (this is what you'd do to replace a motherboard, I'm assuming you can do the same with the USB board), or you can send it to a service centre. Or even a local mobile shop may be able to diagnose & repair.
But if that problem persists on a clean stock install w/new genuine battery, my money is on a hardware issue.
MistahBungle said:
Clean the battery contacts in the phone with isopropyl alcohol on a cotton bud, could also be symptomatic of the USB/charging circuitry (which the battery/connections is part of) on the way out as well. Is it an original Samsung battery (Tho many people have no problems with 'el cheapo' batteries, a lot do) ?
After cleaning the contacts, do a clean install of stock to see if the issue persists to rule in/out a rom/firmware issue.
If it does persist on stock, it's probably the 2nd thing I mentioned. If that's the case, you may be able to swap the relevant board out with one from a donor phone with a broken screen (this is what you'd do to replace a motherboard, I'm assuming you can do the same with the USB board), or you can send it to a service centre. Or even a local mobile shop may be able to diagnose & repair.
But if that problem persists on a clean stock install w/new genuine battery, my money is on a hardware issue.
Click to expand...
Click to collapse
Thanks for such a prompt and thorough reply!
I've cleaned the battery contacts on the phone, and the battery to be sure. It is an original Samsung battery so should be no problems there.
With an install of the stock ROM, am I able to root the phone to allow myself the freedom to restore data for apps etc etc...? Would you recommend doing a clean install of the latest stock ROM found here?
Not too keen on trying to fix it if it's broken. May just sell up and get a GS3.
Cheers!
Yep a rom from that thread will be fine. Yes, reinstall/restore your apps & what not; just trying to ascertain if there's something funky in the rom/kernel you're currently using causing the issue or not.
You're welcome Let us know how you get on after you've done that.
MistahBungle said:
Yep a rom from that thread will be fine. Yes, reinstall/restore your apps & what not; just trying to ascertain if there's something funky in the rom/kernel you're currently using causing the issue or not.
You're welcome Let us know how you get on after you've done that.
Click to expand...
Click to collapse
If it makes any difference, it has occurred on multiple custom ROM/kernel combinations...Hopefully the clean with isopropyl alcohol solves the situation!
That sounds ominous (and not in a good way) in that case.

[Q] brick or semi brick or something

i tried to install gt-i9100g in my gt-i9100 phone(by mistake)..then after that my phone shows some wired actions.
1. It goes dead (doesn't turn on or go to download mode or recovery) and after sometime (variable hours or days) will shows battery icon when left in charging.
2.Then it would work for a couple of hours or days then again goes to first step and eventually return to 2nd step and continues.
3. when phones switches on i installed gb stock rom using odin and also tried jb official and also neat rom but still it goes to 1st step.
can anyone tell me what is the problem and what i can do?
Flash dorimanx and set up a 2nd rom and use that. May Slove the problem may not but either way it's worth trying. Problem is is that you flashed the wrong rom for your model.
Service centre.
MistahBungle said:
Service centre.
Click to expand...
Click to collapse
i gave it to service center and they first did some soldering and put in jb and gave it back. It worked fine fine for two days then again repeated the same actions.
when approached them they replied saying that the motherboard is gone and has to be replaced.
i was thinking if anything could be done other than replacing the motherboard( as it costs INR RS 9000 app..).
2nd hand motheboard from 'donor' phone with broken screen/etc, replace board yourself or pay a local mobile repair shop to do it. Cheaper than a service centre putting a new board in.
If the phone won't boot at all & you have no download/recovery modes (when it's not working) caused by flashing firmware for a different device, what fix exactly would you like anyone here to suggest ?
It might be JTAG'able (though don't get your hopes up), but you're only going to find that out if you take it someone who does JTAG's, and they might charge you money purely to take a look at the phone regardless of whether it's possible to JTAG or not.
Edit - There may also be something hardware-wise going on as well as what you did flashing wrong firmware.
I think it's time for a new phone.

My S2 does not Boot at all may be HARDBRICKED :'(

Okay... initially i was on Custom Rom Jellybam based on Jellybean 4.2.1 with Siyah Kernel V5 sync.
I want to upgrade to Kitkat 4.4
so i downloaded all the required files , made nandroid backup , reboot the phone and started transferring all ROM files into internal SD card Sdcard0
I am doing all this is Linux Mint..
It started transferring and got stuck 33.2%
so i removed the cable and try it again and this time again it stucked again
and my phone reboots automatically ..
Samsung logo main screen shows and loading starts but after completing loading bar .. it Freezes there and i cannot boot into recovery either..
SO on searching on goggle for solutions .. it states that i have to flash kernel again through ODIN again in order to access recovery to do Factory Reset..
SO i did the same flashed siyah kernel v4.1.5
it shows its successfully flashed BUT on reboot it shows Yellow triangle and freezes there and i still cannot access recovery and it also freezes on battery charge animation
So i again try to flash using ODIN this time again with siyah kernel 6.b5
and still same problem ,, so pull out battery and leave for 5 minutes and again boot phone in download mode and flash again using odin siyah kernel 6.0b5 and upon Reboot PHONE does not Boot.. I was literally Shocked and i try to pull out battery .. put back in and Try to charge but it shows no animation nor it is going in download mode.
Please HELP ..
Suggest me some ways because 1 year before I've replaced the motherboard due to same problem caused by factory reset in stock ICS rom when There was Hard Brick problem in Stock ICS roms..but it was in warranty so there was no problem but this time its out of warranty..
I didn't do anything wrong and still it got HARD BRICKED and still not have a clue what went wrong ??
No booting at all = nothing anyone here can do = replace motherboard or get a new phone (JTAG also very unlikely to work).
MistahBungle said:
No booting at all = nothing anyone here can do = replace motherboard or get a new phone (JTAG also very unlikely to work).
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Click to collapse
i know. this.. its TOO scary to hear this thing..
If anything is possible ?? Anything ??
i will give every info you needed..
And what exactly do you expect people here to suggest ? If the phone won't boot you can:-
*Try a jig (0.0000000001% chance of working, but try it if you like torturing yourself with false hope)
*Try a JTAG if the person who tries is prepared to do it on the basis of 'you only pay them if the JTAG is successful' (also 0.0000000001% chance of working, try this if you like torturing yourself with false hope even more)
*Replace the motherboard; 99.99% chance of successfully fixing the phone provided there's nothing else wrong hardware-wise
MistahBungle said:
And what exactly do you expect people here to suggest ? If the phone won't boot you can:-
*Try a jig (0.0000000001% chance of working, but try it if you like torturing yourself with false hope)
*Try a JTAG if the person who tries is prepared to do it on the basis of 'you only pay them if the JTAG is successful' (also 0.0000000001% chance of working, try this if you like torturing yourself with false hope even more)
*Replace the motherboard; 99.99% chance of successfully fixing the phone provided there's nothing else wrong hardware-wise
Click to expand...
Click to collapse
i'll go to samsung care tomorrow but i am still wondering what happened wrong as i did nothing wrong at all then still how it hardbricked ??
... probably you only need to flash a correct running ROM. Did you try to flash an original Samsung firmware? Did you wipe data before starting the new ROM? Otherwise there is a big chance for a bootloop.
Sent from my Nexus 7 using xda app-developers app
AndDiSa said:
... probably you only need to flash a correct running ROM. Did you try to flash an original Samsung firmware? Did you wipe data before starting the new ROM? Otherwise there is a big chance for a bootloop.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
the guide suggest to flash kernel so that i can wipe/data factory reset .. i tried that with odin but phone does not boot and freezes at Samsung logo when loading bar finishes... so i thought to flash stock ics rom but before doing that after flashing kernel again it reboot and hard bricked... and does not boot after all even in download mode..
So this happens after i flashed kernel 3rd time and i still have no clue why did it happened..
and customer care asks it would costs at least Rs.8,000 or $133 to replace a Motherboard.. which is too costly...
can anyone suggest me any other things.. ay alternatives ??
There are no other alternatives. Just because you refuse to accept reality doesn't make it anything less than reality.
And isn't it wonderful to see people still not reading threads & suggesting stuff that's impossible: 'probably you only need to flash a correct running ROM'. I mean, seriously ? The OP has already stated on multiple occasions that the phone will not boot. At all. How do you propose he flash 'a correct running rom' exactly ?
MistahBungle said:
There are no other alternatives. Just because you refuse to accept reality doesn't make it anything less than reality.
And isn't it wonderful to see people still not reading threads & suggesting stuff that's impossible: 'probably you only need to flash a correct running ROM'. I mean, seriously ? The OP has already stated on multiple occasions that the phone will not boot. At all. How do you propose he flash 'a correct running rom' exactly ?
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Click to collapse
hahah... i know .. people are sometimes too lazy to read ..
I just need to know.. what's wrong happened so that it will not happen next time..
Honestly ? That's almost impossible to say. Best guesses based on what you've told us are you simply got a bad flash, which is a small possibility (maybe 1 in 10,000) with any given flash. Or, I've had a theory based on instances like this I've seen on here over the past two yrs which involves the connection between phone & PC being broken for a split second during the flash (possibly caused by less than reliable USB ports on the PC or something else intermittent on the PC side), but not long enough for the disconnection to 'register' on the PC-side like it normally does when an external device is disconnected (you get that exclamation sound & a notification that the device has been disconnected in your taskbar).
It doesn't sound like you did anything 'wrong', put it that way. So I'm not sure there's a whole lot you can do to avoid it in future. Unfortunately, that's the risk all of us take whenever we flash stuff to our phones; every single flash (even CWM ones) involves that small risk (due to the nature of the NAND; having a write abruptly interrupted partway through can 'scramble' it) and the only way you can mitigate that 100% is to not flash anything at all.
Well .. I've already seen several people claiming a 'hardbrick' while the phone was only stuck in a boot loop. Especially while flashing only boot.img / system.img (which the OP claimed) it's normally really hard to create a hardbrick. That was the reason to suggest to try to flash an original firmware.If instead the bootloader is messed up, there is not much to do ...
AndDiSa said:
Well .. I've already seen several people claiming a 'hardbrick' while the phone was only stuck in a boot loop. Especially while flashing only boot.img / system.img (which the OP claimed) it's normally really hard to create a hardbrick. That was the reason to suggest to try to flash an original firmware.If instead the bootloader is messed up, there is not much to do ...
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Click to collapse
well I've got my s2 since past 1.7 years and nothing wrong has happened till date as I've flashed plenty of ROMS earlier.. its nothing new to me.. i am well known to these things..
i have exams from 1 month and s2 was creating problems such as freezes while scrolling in any application and automatic reboot from many time
i have no time to solve this during exams..
so i tried to solve this issue yesterday by upgrading to new ROM.. downloaded ROM files .. and ready to transfer to internal sd where copying stuck at 33% 2 times and at 2nd time from where main problem starts.. of freezing at bootscreen and then i trty to solve by flahsing new kernel thriugh ODIN where Hardbrick was TOTALLY UNEXPECTED.. as I've done this earlier time too but nothing happened wrong that time... i was literally surprised that it does not boot at all even i didn't done any mistakes at all & followed procedure.. even ODIN every time shows "Flash Successful"
i've attached screenshot of ODIN flashing.. so you can check for yourself..
May be there is a possibility of battery dying and phone cannot charge the battery ??
i've no spare battery to check .. so will go soon to care to check if its battery problem or not..
MistahBungle said:
Honestly ? That's almost impossible to say. Best guesses based on what you've told us are you simply got a bad flash, which is a small possibility (maybe 1 in 10,000) with any given flash. Or, I've had a theory based on instances like this I've seen on here over the past two yrs which involves the connection between phone & PC being broken for a split second during the flash (possibly caused by less than reliable USB ports on the PC or something else intermittent on the PC side), but not long enough for the disconnection to 'register' on the PC-side like it normally does when an external device is disconnected (you get that exclamation sound & a notification that the device has been disconnected in your taskbar).
It doesn't sound like you did anything 'wrong', put it that way. So I'm not sure there's a whole lot you can do to avoid it in future. Unfortunately, that's the risk all of us take whenever we flash stuff to our phones; every single flash (even CWM ones) involves that small risk (due to the nature of the NAND; having a write abruptly interrupted partway through can 'scramble' it) and the only way you can mitigate that 100% is to not flash anything at all.
Click to expand...
Click to collapse
i totally understand what you wanted to say..
i now how to do these things.. i know the risks...
still don't know what happened wrong..
hey guys.. i just went to samsung care and they told me that PCB need to be replaced and it ill costs me INR 8,000 or $133.33 which is too expensive and i told them if any other thing can be done .. i see some videos in youtube stating DEAD or HARDBRCIKED S2 can be fixed by changing its POWER IC...
so i told them that thing then they told me that OFFICIALY only Motherbaord could be replaced however I can ask local reapir shops in my city whether they can replace POWER IC or any other such thing which will be cheap..
So i went to one of the Repair shop (MAIN one in my CITY) & i ask them .. after checking he said.. I'll check IF Repalcing POWER IC will solve the problem or not... otherwise Motherboard need to be replaced..
the cost of POWER IC replacement is INR 800 or $13.33
otherwsie
he'll replace the motherboard for INR 3000 or $ 30..
so i deposoited my Phone to him and will go again in 2 hours.. to check if POWER IC replacement will fix the problem or not..
I am wondering if it will be safe to do this from unofficial reapir centre whether he will not take orignal parts of my phone internals ? however every people go to his shop.... Motherboard repalcing by him costs only INR 3000 ($50) while officialy its INR 8000($133)..
why is there so much price difference..??
IF POWER IC replacement is good idea ??
i just don't want to be in another problem...
Probably a 2nd hand board. If it were me, I'd be replacing the whole board. I wouldn't want someone fartarsing around replacing individual components on a board that size no matter how competent they claim to be. But that's up to you/how much money you're prepared to spend.
As to whether what he's going to do (replacing an individual component) will definitely fix it, how do you expect us to possibly know that ? You're the one who's met the person who's going to fix your phone/we have absolutely no knowledge whatsoever of this person/their competencies. I know one thing though, in Australia, nobody who repairs Samsung phones for a living (I.E a commercial operation/business) would replace an individual component like that. Only 'spare timers' would do that.
MistahBungle said:
Probably a 2nd hand board. If it were me, I'd be replacing the whole board. I wouldn't want someone fartarsing around replacing individual components on a board that size no matter how competent they claim to be. But that's up to you/how much money you're prepared to spend.
As to whether what he's going to do (replacing an individual component) will definitely fix it, how do you expect us to possibly know that ? You're the one who's met the person who's going to fix your phone/we have absolutely no knowledge whatsoever of this person/their competencies. I know one thing though, in Australia, nobody who repairs Samsung phones for a living (I.E a commercial operation/business) would replace an individual component like that. Only 'spare timers' would do that.
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Click to collapse
well i ask a local official samsung mobile shop onwer whom we knows from years ... he said.. he is the main person in our city and everyone goes to him for repair... and he thinks he won't do such as thing..
SO i gave my phone to him..
and about power IC replacment there are some videos on youtube i checked before asking for POWER IC replacement....
so thought may be it'll work.. :/
hope for the best..
anyways thanks..
MistahBungle said:
And what exactly do you expect people here to suggest ? If the phone won't boot you can:-
*Try a jig (0.0000000001% chance of working, but try it if you like torturing yourself with false hope)
*Try a JTAG if the person who tries is prepared to do it on the basis of 'you only pay them if the JTAG is successful' (also 0.0000000001% chance of working, try this if you like torturing yourself with false hope even more)
*Replace the motherboard; 99.99% chance of successfully fixing the phone provided there's nothing else wrong hardware-wise
Click to expand...
Click to collapse
What's up with the sarcasm? Pretty sure that's not what this forum is about.
Sent from my SCH-R950 using xda app-developers app
^^^^
Unless you're one of the 'slow kids up the back', you'll know there is absolutely nothing anyone on a phone forum can do for a person like the OP who has a phone in that state. How do I know this ? Experience. I have seen thousands of examples on here exactly like this in 2 & a bit years. They all turn out the same whether you tell people straight up, or whether you stuff them around for two weeks trying stuff that has no chance of working.
And as it's turned out, I was absolutely correct in my initial post. I'm not a believer in having people try a bunch of stuff that has no chance whatsoever of working which builds up their hopes, only to have them end up disappointed when the 'stuff that had no chance of working in the first place' doesn't work (funnily enough ).
I'd much rather be honest with people from the outset, so they can either have their phone repaired & working again (or buy a new phone if people decide that's a better option) sooner rather than later, because I know what it's like to be without a (decent) phone for week/however long.
But you're not capable of comprehending this, are you ? You'd rather make your 2nd post on here a 'gob off' re: something you know absolutely nothing about.
So . the thing is IF POWER IC replacemet will fix the phone or not...i've done some googling and found that the POWER IC replacemet works for users..
If anyone here in this forum has tried this and successfuly saved his phone instead of replacing whole Motherboard.. ??
MistahBungle said:
^^^^
Unless you're one of the 'slow kids up the back', you'll know there is absolutely nothing anyone on a phone forum can do for a person like the OP who has a phone in that state. How do I know this ? Experience. I have seen thousands of examples on here exactly like this in 2 & a bit years. They all turn out the same whether you tell people straight up, or whether you stuff them around for two weeks trying stuff that has no chance of working.
And as it's turned out, I was absolutely correct in my initial post. I'm not a believer in having people try a bunch of stuff that has no chance whatsoever of working which builds up their hopes, only to have them end up disappointed when the 'stuff that had no chance of working in the first place' doesn't work (funnily enough ).
I'd much rather be honest with people from the outset, so they can either have their phone repaired & working again (or buy a new phone if people decide that's a better option) sooner rather than later, because I know what it's like to be without a (decent) phone for week/however long.
But you're not capable of comprehending this, are you ? You'd rather make your 2nd post on here a 'gob off' re: something you know absolutely nothing about.
Click to expand...
Click to collapse
dude please if anything irritates you .. then i'm sorry..
i ts just its first time happened with me...s i am worried about my phone..
that's all :/

[Q] Hard Bricked I9100

Hi Guys,
I have hard bricked my SGS2 I9100 as .pit file flash failed. Now there is no download/recovery/normal boot. It is completely dead, not detected on any PC by USB/Odin. It gets hot and there is slight vibration while charging. There is no response for USB Jig.
Samsung service center told there is motherboard issue and they don't repair it, they straight away replace it for $150 which I am unwilling to spend now.The phone has gone through the hands of many good technicians but all dismissed the chance of repair saying its an major hardware issue and components are out of stock/ unwilling to do it.
A repairman said he tried to JTAG it but from what he says is that eMMc chip didn't respond to Riff Box. I am not sure whether he correctly tried it on a Riff Box or any other box.
My questions are,
Q1) Should I once again try to JTAG it through other source ? Can any one tell me what's difference does it make to either JTAG it on Riff Box/Medusa/Z3X/GPG & Other Boxes ?
Q2) Does replacing the eMMc flash chip & power IC with new one increases the chances to revive the phone ?
Q3) If I were to replace the IC's from where could I buy it in "India" or should I buy it from aliexpress.com ?
Q4) Are the below IC models correct for I9100:
eMMc Flash IC: KMVYL000LM-B503 or KLMCG8GE2A-A001 (I am unable to
find this chip KLMCG8GE2A-A001 to buy if it is for I9100) source: mobiletechvideos.com
Power IC: MAX8997
Q5) Is there any other method apart from replacing IC's/JTAGGING through which I can repair my I9100 ?
Awaiting your responses. :fingers-crossed:
Long story short - replace the motherboard or buy a new phone.You already tried everything.
Only a few people had successfully replaced the eMMC chip.As it's very hard to do.Resoldering these kind of chips is simply impractical.
TheImpossibleEnemy said:
Long story short - replace the motherboard or buy a new phone.You already tried everything.
Only a few people had successfully replaced the eMMC chip.As it's very hard to do.Resoldering these kind of chips is simply impractical.
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Click to collapse
I agree to your point. But still I want to take a chance with the eMMc/Power IC replacement option. At my end I am looking for a proficient technician who can do precision soldering, what I want from this forum is, has IC replacement worked for any one of you guys and if yes can you mention the detailed steps for the same. Because on GSM Hosting forums a lot of guys have replaced the IC's and got their S2 working. But because of technical issue of minimum 10 post for a new thread I cannot ask there. This forum is my only hope to find proper solution to my problem.
You won't see anyone post those steps because I've never seen anyone on here post they've had someone do this repair successfully. I've seen a number of people post here (particularly over the past 6 mths & particularly in some countries) that they've been offered this fix, but not a single one has posted & said they had it done & it was successful.
Why ? Because no tech with any competence would attempt this for a couple of reasons:-
1) It would be a pain in the arse to try. It would be very fiddly/take a long time. Small electronics these days is mostly 'modular' & replacement of tiny parts just doesn't happen anymore; 'boards' are replaced because it's quicker/easier for the tech, and cheaper for the customer. Even if these fixes were possible, you'd pay more than what a motherboard replacement would cost. And even then you're probably relying on someone with questionable technical ability telling you it is possible when people who really know what they're doing & talking about just wouldn't bother.
2) You have no way of knowing yourself whether you're being told the truth about this 'power IC' nonsense actually being the problem. What happens if you try this fix, only to find out the NAND is actually corrupted (which it is 99.999999999999999999999999% of the time; you are not the exception here); this means you pay for the fix which has no chance of working, and then you pay again for a motherboard replacement or new phone.
By all means sit in this thread for months & months with a non-working phone waiting for the information you're after to be posted, but it never will be for the reasons I've mentioned. If it was me, I'd want my phone working ASAP because I need a phone.
MistahBungle said:
You won't see anyone post those steps because I've never seen anyone on here post they've had someone do this repair successfully. I've seen a number of people post here (particularly over the past 6 mths & particularly in some countries) that they've been offered this fix, but not a single one has posted & said they had it done & it was successful.
Why ? Because no tech with any competence would attempt this for a couple of reasons:-
1) It would be a pain in the arse to try. It would be very fiddly/take a long time. Small electronics these days is mostly 'modular' & replacement of tiny parts just doesn't happen anymore; 'boards' are replaced because it's quicker/easier for the tech, and cheaper for the customer. Even if these fixes were possible, you'd pay more than what a motherboard replacement would cost. And even then you're probably relying on someone with questionable technical ability telling you it is possible when people who really know what they're doing & talking about just wouldn't bother.
2) You have no way of knowing yourself whether you're being told the truth about this 'power IC' nonsense actually being the problem. What happens if you try this fix, only to find out the NAND is actually corrupted (which it is 99.999999999999999999999999% of the time; you are not the exception here); this means you pay for the fix which has no chance of working, and then you pay again for a motherboard replacement or new phone.
By all means sit in this thread for months & months with a non-working phone waiting for the information you're after to be posted, but it never will be for the reasons I've mentioned. If it was me, I'd want my phone working ASAP because I need a phone.
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Click to collapse
Anyways.. I have given my phone for eMMc replacement let us see what it turns out to be. Thanks for your input Mistah. Will post back once I get my phone.
One more thing MistahBungle, as you have mentioned NAND corruption thats the exact issue I faced in Odin, does it means the flash chip is dying or as I read it its stuffed beyond recovery.. what exactly is NAND corruption and is there any solution for it apart from mobo change ?
Arjune said:
Anyways.. I have given my phone for eMMc replacement let us see what it turns out to be. Thanks for your input Mistah. Will post back once I get my phone.
One more thing MistahBungle, as you have mentioned NAND corruption thats the exact issue I faced in Odin, does it means the flash chip is dying or as I read it its stuffed beyond recovery.. what exactly is NAND corruption and is there any solution for it apart from mobo change ?
Click to expand...
Click to collapse
It means the chip has been 'scrambled' due to a bad flash, which means nothing can be written to or read from the chip anymore, which is why your phone won't boot, the (for the sake of simplicity, the tech version is available with a Google or XDA search) 'pre-boot' stuff/OS/etc lives on it, without that = dead phone.
Only solution is to replace it, and as we've said, replacing just that chip isn't feasible, so the whole board is replaced.

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