[Q] Samsung Galaxy S2-i777 Spontaneously Rebooting - Power/Unlock Button Not Working - AT&T Samsung Galaxy S II SGH-I777

Hi, my Samsung Galaxy S2 (i777 from AT&T) had been spontaneously rebooting every few minutes in the last few days. (FYI, I am using the unlocked phone outside the US. Currently running Android 2.3.6). I have been charging the phone with my USB cable lately (which might have caused the problem), and it doesn't recognize the device anymore.
When the repeated restarting started, then I somehow managed to delete some recently updated apps/new updates, and the restarting stopped for a while before returning the next day.
Then finally, the power button just stopped working altogether. For unlocking the screen - I now have to either plug in/disconnect from the charger, when it beeps & lights up, and then I can use the phone. I have tried using apps such as: Fix Broken Power to at least maintain the usability, but the app only seems to work after I plug the charger in/out, so it isn't any help.
I guess the power button could've died & need replacing, since the device is almost 2 years old. But before taking the phone to a mobile-phone repair shop, I wanted to check if there is any other option for fixing the issue (without doing a factory reset). Also, please advise any alternative screen unlocking app for using in the meantime.
Thanks in advance!

Replacing the power button is extremely easy, I wouldn't spend the money to send it off. All you'd have to do is take the cover of, remove a few screws and pop the new button in. Takes about 4 minutes.
An alternative is to root your phone, upgrade your firmware to 4.1+ and use either the AJK or STI kernel; they both use Stweaks, which has a slide2wake feature that allows you to wake the screen up without using the power button.
Sent from the i777

SteveMurphy said:
Replacing the power button is extremely easy, I wouldn't spend the money to send it off. All you'd have to do is take the cover of, remove a few screws and pop the new button in. Takes about 4 minutes.
An alternative is to root your phone, upgrade your firmware to 4.1+ and use either the AJK or STI kernel; they both use Stweaks, which has a slide2wake feature that allows you to wake the screen up without using the power button.
Sent from the i777
Click to expand...
Click to collapse
Thanks SteveMurphy! That was some good advice. But since I'm not very technically sound, so I took it to a repair shop. After keeping it for one day, they said that, the power button is fine, but the internal processor is having problems (probably because I've been charging it with a USB cable), and they quoted a pretty high amount for replacing it. What's more annoying is that, the battery went dead since it wasn't charged while it was with them, and over 24 hours of charging (after I got it back) didn't bring my phone back to life. At least before I could use it while it was plugged in to the charger, but now its all darkness. I'm thinking of taking it to my local Samsung Service Center, and I can see it costing a fortune, if it can at all be fixed. Very upsetting.

MissN said:
Thanks SteveMurphy! That was some good advice. But since I'm not very technically sound, so I took it to a repair shop. After keeping it for one day, they said that, the power button is fine, but the internal processor is having problems (probably because I've been charging it with a USB cable), and they quoted a pretty high amount for replacing it. What's more annoying is that, the battery went dead since it wasn't charged while it was with them, and over 24 hours of charging (after I got it back) didn't bring my phone back to life. At least before I could use it while it was plugged in to the charger, but now its all darkness. I'm thinking of taking it to my local Samsung Service Center, and I can see it costing a fortune, if it can at all be fixed. Very upsetting.
Click to expand...
Click to collapse
Good luck my friend. Sorry to hear about your phone.
Sent from the i777

Related

Phone dead. Repair? But its Rooted!

Hi.
I've got a Galaxy S2 (international version, unlocked). Its worked fine until now.
Ive had it lying around for a bit after getting the S3 and thought about selling it. So i checked it out again. Battery empty so i started charging It - charding battery screen was displayed - so fine.
Then I noticed some dust in the speaker grill and I wanted to clean that out. I used my breath and a needle to get it out.
Afterwards it did not power on anymore, the screen remains black and no sound. But I did not even poke around that hard?! Can it be damaged just from that bit of cleaning?
I tried letting it lying around for a while, then pressing the power button without battery to drain all remaining electricity and finally tried both soft reset (power button for about 10 seconds) and hard reset (power button and middle button for about 10 seconds).
It did not turn on.
Then I tried turning on with my usb jig. No luck.
I tried charging the battery again (since it was about empty). No change.
Since the phone has 2 year warranty I think I considered sending it for repair. But I remembered that I had rooted it. They will not repair if its rooted I hear.
Is there any other thing I can try?
I assume this is a hardware error and a physical repair is necessary (PCB replacement?)?
Or would a JTAG suffice?
I'd even consider doing a repair myself (getting replacement part and doing a peplacement myself) if I knew whats was wrong...
Please give advice!
can you boot into download mode ?
try to get another battery. it might be just a dead battery.
I cannot boot into download mode.
While it may be a dead battery I would assume connecting it to charge via USB (and I did check that the cable is ok and does charge by checking with my galaxy s3) would allow turning it on as it originally did (got into the charging mode where it displays the battery level). It does not do that anymore.
have you tried using another battery?
Sent from my GT-I9100 using xda app-developers app
I bet another battery works, this battery proberly needs some boosting to get to life again... after boosting it starts charging again...
Sent from my GT-I9100 using xda app-developers app
I asked a collegue at work to charge my battery who also had an s2. So the battery definitely works on a properly working s2.
I used that battery on my s2 and it still will not boot up or show any signs of operation.
Is there a way to find out what component is damaged?
I'd like to try and replace it, but that only makes sense if I know what component is the problem.
If you're not experienced at testing/working with microelectronics, you have no chance of fixing it yourself. You're more likely to completely trash the phone if you try. That you asked a question like that suggests you don't have the knowledge/experience required.
Do the smart thing & either see if it can be JTAG'd by a 3rd party repairer, or take your chances with Samsung/authorised repairer & hope they don't notice/don't care/can't tell it's been messed with.
The other issue is, how could anyone here possibly know what's wrong with the phone specifically ? We're not there with you looking over your shoulder as you take the phone apart & we certainly don't have x-ray vision to be able to see inside the phone over distance.

Stock Desire X will not power up

Hey all,
Phone is completely stock never got into flashing roms or anything. Had to ring up my provider to turn on my internet access. They asked me to restart my phone. I held the power button down menu came up, I selected power off phone. From then I have been unable to power it back on.
When left on charge overnight charging LED is orange never turns green.
Tried holding down power button for 10 secs,30 secs nothing.
Tried holding down volume button + power button, nothing.
Tried pressing the button inside the phone when cover off, took out battery basically tried everything possible.
Figuring it might be the battery since when I checked it with a Volt meter the battery was reading 2.9 volts where it should be 3.8v.
Took out my battery from my Incredible S and flipped it since the polarities are different, phone did not respond. I bought a new battery for it anyway just to make sure but they sent me the wrong one that also has the polarity in reverse so flipped it and nothing either. This battery is 3.7v instead of 3.8v but in any case this should probably not make any difference.
The phone just refuses to power on with no signs of malfunction before that.
Anybody have any ideas?
iroczinoz said:
Hey all,
Phone is completely stock never got into flashing roms or anything. Had to ring up my provider to turn on my internet access. They asked me to restart my phone. I held the power button down menu came up, I selected power off phone. From then I have been unable to power it back on.
When left on charge overnight charging LED is orange never turns green.
Tried holding down power button for 10 secs,30 secs nothing.
Tried holding down volume button + power button, nothing.
Tried pressing the button inside the phone when cover off, took out battery basically tried everything possible.
Figuring it might be the battery since when I checked it with a Volt meter the battery was reading 2.9 volts where it should be 3.8v.
Took out my battery from my Incredible S and flipped it since the polarities are different, phone did not respond. I bought a new battery for it anyway just to make sure but they sent me the wrong one that also has the polarity in reverse so flipped it and nothing either. This battery is 3.7v instead of 3.8v but in any case this should probably not make any difference.
The phone just refuses to power on with no signs of malfunction before that.
Anybody have any ideas?
Click to expand...
Click to collapse
Looks like a paperweight. You should use warranty.
dansou901 said:
Looks like a paperweight. You should use warranty.
Click to expand...
Click to collapse
Bummer and it is still under warranty but the problem is I am in Australia at the moment (bought in Europe) Would send to relatives but can't find invoice.
So I am out of luck. I spoke with HTC technical support they were absolutely useless, knew less than me. Last time I ever buy a HTC. Incredible S speaker died about 2 months after warranty. Now this with the Desire X, I guess spending $300+ on a phone gets you about 12 months use and you can throw away, great....
Is there anyway to flash new firmware onto the phone even without being able to power it up? When I connect the phone to PC nothing happens nothing it recognized on PC that anything is plugged in.
iroczinoz said:
Bummer and it is still under warranty but the problem is I am in Australia at the moment (bought in Europe) Would send to relatives but can't find invoice.
So I am out of luck. I spoke with HTC technical support they were absolutely useless, knew less than me. Last time I ever buy a HTC. Incredible S speaker died about 2 months after warranty. Now this with the Desire X, I guess spending $300+ on a phone gets you about 12 months use and you can throw away, great....
Is there anyway to flash new firmware onto the phone even without being able to power it up? When I connect the phone to PC nothing happens nothing it recognized on PC that anything is plugged in.
Click to expand...
Click to collapse
I'm afraid no...
desire x dead
iroczinoz said:
Hey all,
Phone is completely stock never got into flashing roms or anything. Had to ring up my provider to turn on my internet access. They asked me to restart my phone. I held the power button down menu came up, I selected power off phone. From then I have been unable to power it back on.
When left on charge overnight charging LED is orange never turns green.
Tried holding down power button for 10 secs,30 secs nothing.
Tried holding down volume button + power button, nothing.
Tried pressing the button inside the phone when cover off, took out battery basically tried everything possible.
Figuring it might be the battery since when I checked it with a Volt meter the battery was reading 2.9 volts where it should be 3.8v.
Took out my battery from my Incredible S and flipped it since the polarities are different, phone did not respond. I bought a new battery for it anyway just to make sure but they sent me the wrong one that also has the polarity in reverse so flipped it and nothing either. This battery is 3.7v instead of 3.8v but in any case this should probably not make any difference.
The phone just refuses to power on with no signs of malfunction before that.
Anybody have any ideas?
Click to expand...
Click to collapse
MAIN BOARD ISSUE !! iAM 100% SURE WE GET DOESNS OF THIS PROBLEM !!
gidbi9952 said:
MAIN BOARD ISSUE !! iAM 100% SURE WE GET DOESNS OF THIS PROBLEM !!
Click to expand...
Click to collapse
We had a few, that's right. But not enough to call it a mistake happened during assembly I think...
gidbi9952 said:
MAIN BOARD ISSUE !! iAM 100% SURE WE GET DOESNS OF THIS PROBLEM !!
Click to expand...
Click to collapse
Is this something I can replace myself without to much problem? Any idea on cost of mainboard?
iroczinoz said:
Is this something I can replace myself without to much problem? Any idea on cost of mainboard?
Click to expand...
Click to collapse
I saw one for 150 € somewhere on the internet, it's relative easy to replace. But I think it's cheaper to buy a new one...
iroczinoz said:
Is this something I can replace myself without to much problem? Any idea on cost of mainboard?
Click to expand...
Click to collapse
Maim board not for sale for phones normally...what iam doing is,check warranty first coz this fault covered by warranty even if u dont have receipt service centres have to fix it. If out of warranty look for broken phone online swap main board carefully. Not difficult..
Yeah for 150 euro not worth the money rather buy an LG. I will try and get it fixed under warranty but I know in Czech if you don't have receipt they don't talk to you. Would have thought they would have the serial number in database along with date of purchase.
job
dansou901 said:
We had a few, that's right. But not enough to call it a mistake happened during assembly I think...
Click to expand...
Click to collapse
any technician job in achen ?! let me know ...Ive 7 years experience :laugh:
gidbi9952 said:
any technician job in achen ?! let me know ...Ive 7 years experience :laugh:
Click to expand...
Click to collapse
There should be.... Just search around. But I can't help you further, sorry.

Galaxy S II Sudden Death?

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.
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.
MistahBungle said:
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.
Click to expand...
Click to collapse
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!
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.
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 =\
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.
GreekBlood said:
but if you can't use other batteries (that work with the s2), then I guess your nand is dead.
Click to expand...
Click to collapse
Damn. I have 3 working batteries, one was in the phone. Two fully charged, none worked. =(
Sent from my SM-N9005 using Tapatalk

My Galaxy View won't turn on

I've had my View since 9/16. I use it everyday for probably 6 hours or more. Every night I turn it off and plug it into the factory charger. I tried to turn it on the other day and it will not turn on. I'm a geek so I've tried everything I can find on the web and Samsung's site to get it to work. I contacted Samsung and they've sent me a label to send it back to them for their evaluation and price to fix.
A couple questions for other forum members:
1. Has this happened to anybody else?
2. Anybody had the battery die? I've put a lot of hours on mine...
3. Anybody had any experience with Samsung service?
Thanks for any feedback...
Larry
I have not had this happen to the View, but I have had it happen to a few other devices when I used to test devices for a wireless carrier. This can happen when the battery is "too dead". If the battery drops below a vital level then it can fail to start up into the charging boot screen. If it was on the charger, it's possible that your charger failed and caused a parasitic loss to the tablet. This is, perhaps, the worst problem with non-removable batteries. Sometimes you can hold the power button down while plugged in and it will start charging again. I assume you have purchased, or already have, a second charger, to rule out it being a charger issue. To have any chance of this method working, you will likely need to hold the power button for at least 10 min while attempting to charge. Basically the concept is that you are trying to get the power to flow to the battery even while it can't boot the charging screen kernel.
Thanks for your detailed reply. I really appreciate it. And I did try another charger. Didn't try holding down the power button for 10 minutes, but I get your point. I contacted Samsung and they provided a 2nd Day Air return label, which I thought was generous for a tablet out of warranty. So it's on its way to them to evaluate and give me an estimate to repair. I'll post when I hear back from them. Thanks, again, for your reply.
Samsung discovered my motherboard needed to be replaced. Cost $109 including shipping both ways and it seems to be working just fine. Of course now I have to get everything set up again. I thought the price was reasonable - a heck of a lot cheaper than a new one.

Question S23 Ultra has mysteriously died

I've had the S23 Ultra (US, unlocked, from samsung.com) for a couple of months. I didn't root it, drop it, or splash it with water. I charged it last night, but when I woke up this morning, there was no sign of life: a black screen, no sound, no reaction to charging (even after long charging with a different charger and the cable), no reaction to a long press of Power + Vol Up/Down, and nothing detected in adb.
So I have a few questions:
Has anyone else had a similar experience with their device?
Any suggestions on how I could resurrect it?
Do you have any ideas about what might happen? Throughout the two months, I used the same old low-current (850 mA) Motorolla charger. The charger is still operational.
My current plan is to contact Samsung Support.
Any advice is appreciated! Thank you!
Have you tried using a higher capacity charger, like an official Samsung charger plugged into the wall? Have you tried a wireless charging pad to rule out an issue with the USB-C port? Samsung still uses the lowest grades soldier pennies can buy on their most premium devices.
night_wind said:
I've had the S23 Ultra (US, unlocked, from samsung.com) for a couple of months. I didn't root it, drop it, or splash it with water. I charged it last night, but when I woke up this morning, there was no sign of life: a black screen, no sound, no reaction to charging (even after long charging with a different charger and the cable), no reaction to a long press of Power + Vol Up/Down, and nothing detected in adb.
So I have a few questions:
Has anyone else had a similar experience with their device?
Any suggestions on how I could resurrect it?
Do you have any ideas about what might happen? Throughout the two months, I used the same old low-current (850 mA) Motorolla charger. The charger is still operational.
My current plan is to contact Samsung Support.
Any advice is appreciated! Thank you!
Click to expand...
Click to collapse
Looks like you've tried everything basic and the phone's just dead. Could be a motherboard failure. Best to go to Samsung instead of breaking your head, as it's still under warranty. At least that's what I'd do in your position.
Wish you the best.
Try half an hour charging on wireless charger if you haven't tried yet
Saw this happen on a Note 4 back in the day. It wasn't really dead but in a weird power state. Fully charging for a few hours (even though it showed nothing) then holding power and volume up and down got it to reboot.
Guyinlaca said:
Saw this happen on a Note 4 back in the day. It wasn't really dead but in a weird power state. Fully charging for a few hours (even though it showed nothing) then holding power and volume up and down got it to reboot.
Click to expand...
Click to collapse
My old Note 4 went into this state and didnt manage to revive it with Power and Volume Up + Volume Down combo. The only sign that tells me it's not fully dead is the green notification light when I do the above combo.
About weird power states - I had Galaxy Buds Pro, which refused to take any charge - wired charging did not work and wireless either. Only way to revive it was to use wireless power sharing from the phone. Problem did not reappear later. Go figure...
Really? I "didn't root it" as if that is a bad thing
You obviously charged it with faulty charger. I experienced the exact same thing. I was about to cry but then i remembered i was testing a cheap, fake Samsung charger...
Then i plugged the phone into REAL charger, waited for 2-3 minutes, phone was alive with all its glory.
Get a GENUİNE one with GENUİNE Cable, you are good to go.
night_wind said:
I've had the S23 Ultra (US, unlocked, from samsung.com) for a couple of months. I didn't root it, drop it, or splash it with water. I charged it last night, but when I woke up this morning, there was no sign of life: a black screen, no sound, no reaction to charging (even after long charging with a different charger and the cable), no reaction to a long press of Power + Vol Up/Down, and nothing detected in adb.
So I have a few questions:
Has anyone else had a similar experience with their device?
Any suggestions on how I could resurrect it?
Do you have any ideas about what might happen? Throughout the two months, I used the same old low-current (850 mA) Motorolla charger. The charger is still operational.
My current plan is to contact Samsung Support.
Any advice is appreciated! Thank you!
Click to expand...
Click to collapse
Had this happen on my old s21u. Contacted support and told them I had done all the steps you did. They had me send it in for repair (was actually 2 months after warranty expired but they still agreed to repair it free of charge) and ended up changing the main board, usbc port and something else. Never happened again after (didn't change chargers or anything). So yeah, contact support that's your best bet.
Is this not a legit Charger ?https://photos.app.goo.gl/X9AGuMiz98q3ya2E7
tsufadamadev said:
As for resurrecting your device, you could try some basic troubleshooting steps like a hard reset or checking for any software updates.
Click to expand...
Click to collapse
It will be hard to do it if he can't even turn on the device i any way... No combination of buttons work, no way to turn it on with charger or ADB...
As its apparently either dead or in power-off state you could try to start it into download-mode by:
1. pressing Vol-Up and Vol-Down together and keep them pressed
2. plugging in a USB-cable connected to either a powered-on computer or a charger while keeping the buttons pressed
Normally it should boot into download mode (you can release the buttons after boot-up ).... Maybe this helps if the power button is broken....
illetyus said:
You obviously charged it with faulty charger. I experienced the exact same thing. I was about to cry but then i remembered i was testing a cheap, fake Samsung charger...
Then i plugged the phone into REAL charger, waited for 2-3 minutes, phone was alive with all its glory.
Get a GENUİNE one with GENUİNE Cable, you are good to go.
Click to expand...
Click to collapse
Phones have protection. Fake or real charger shouldn't damage phones.
Brava27 said:
Phones have protection. Fake or real charger shouldn't damage phones.
Click to expand...
Click to collapse
Can't a power surge damage a device? It can happen either during a storm or by using a non-recommended charger. It can fry certain components, even though phones have protection.
Brava27 said:
Phones have protection. Fake or real charger shouldn't damage phones.
Click to expand...
Click to collapse
No, it was like... My fake charger suddenly stopped working and my other phone recognized the charger + cable as a DATA TRANSFER DEVICE. It is really hard to describe the experience. No charging, my fake charger was recognized as something else..
The experience was... My S23 Ultra blacked out. I thought it was charging. Then, complete darkness. Didn't respond to power button.. Nothing. I thought it was bricked. Then i got up and found my other charger. Waited.. 10 - 15 seconds later my phone was back again. God i swear, i was shaking with sweat. It has been almost 1 month, my phone is just fine..
That day i decided to go with only geniue products. Maybe my phone protected itself by bricking itself. I really dont know.
To me it sounds like what you experienced was just an empty battery .... without juice in the battery the phone cannot do anything and the defective charger did not charge the phone while you thought it did....
Update from me: I scheduled an appointment from the Samsung site with an authorized service center (Best Buy). They checked my phone and said that they couldn't fix it if it wasn't turning on, and I had to send it to Samsung. That was unexpected.
I sent the phone to Samsung, and today I got a message that they could not reproduce the problem. I wasn't able to communicate with the service worker yet. My concern is that it could be a bad internal cable connection that restored the circuit due to the shipment vibrations. If so, and they will not check it, I could end up with a phone with a faulty connector that could die at any moment (hopefully during the warranty period).
It's also possible that being in the weird power state was fixed by simply letting the phone completely deplete of charge so that it properly turned off, recharging, then rebooting.
I had this problem on my old s7 edge. It seems that samsung never fixed this problem. The screen would stay completely black, unable to do anything until the battery completely drained. The device itself was never rooted or modified. Pretty disappointing it was never fixed.

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