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Yesterday my battery died half way through playing a game (not entirely unexpected, I'd been playing on my phone quite a bit that day and it still lasted 22-23 hours), I connected the charger that came with the phone and left it to charge while I got on with some uni work.
The phone vibrated to tell me the charge was complete so I disconnected the charger and turned the phone on as usual. After the samsung galaxy S2 splash screen, the screen lock appears and when I move it there are several error messages saying that various applications have had to stop (the main one seems to be TwLauncher but when I force close it, many others also force close). This continues for several seconds until the phone decides to restart itself and repeats the process ad infinitum until I can shut down the phone (I can manage this by not trying to get rid of the screen lock and just holding the power button until the menu appears).
I've had this phone a week (one of those days being today where it did not work at all) so it's still well within the return period but I was wondering if there is an obvious fix that I'm missing.
If not, I'll be ringing Samsung on Monday (I have coursework due for friday so I'll be devoting my samsung office hours time to that) and if they can't give me an easy fix I'll be ringing the place I bought it from and asking for an exchange.
So, has anyone else had similar issues and managed a simple fix?
Bump, I take it everyone else's phone is working then?
Giving this another bump in the hopes there's someone with a simple solution.
I don't want to have send my phone off and wait for the place to get stock.
there have been 2 firmware releases from samsung in the last couple of days, i assume you are running the latest firmware?
I can't even get the phone to stay on long enough for Kies to recognise it. It keeps restarting. Even when it was working I couldn't get Kies to work with it properly (I couldn't copy the contacts from the phone to the computer).
It's running the firmware it came with, but I can't check which version it is.
I was going to try flashing the new firmware via ODIN but I've been busy with coursework. Is this likely to solve the issue or will I just be giving the retailers ammo to reject my return?
go into recovery and do a factory reset
psp888 said:
go into recovery and do a factory reset
Click to expand...
Click to collapse
this is what I was looking for.
after googling, this sorted it out.
I just assumed download mode was the only other non-normal mode.
Thanks
Basic FAQs on the SGS1 forum mostly apply to SGS2 .Worth a look there before Google .
jje
Hey, guys, I know there are a lot of these issues with a lot, if not all, of the HTC smartphones, but I've only seen a few of these for the HTC Radar, and they all seem to give the same answers. Hopefully my explanation of the problem will help!
So, I got the phone thanksgiving weekend 2011, so I've had it for about a year. One day around the beginning of April this year, my phone randomly began a restarting loop, where it would gradually restart itself from a blank white screen over and over, then it went to the HTC screen over and over, and then periodically switched between the HTC screen and the black "Windows Phone" load screen over and over again. I tried taking off the battery cover and leaving it for a couple of minutes and then hours, but I put it back and it just kept rebooting. I was left without a phone for about two days.
On the second day, I put it on the charger and left it in my dorm while I was in class all day, and when I came back, it was rebooting still, but I noticed that it always made it to the "Windows Phone" logo loading screen and then restarted. After about 4 reboots, it went back to normal and I was able to use the phone. After the next couple of months, it stopped doing it in such a long period of time, but the battery usage went up almost 30-40% than what it used to be. Once in a while, it would reboot once, but then it would be back to normal.
This time, in late October, it started the reboot thing again, but this time, only going up to the HTC screen and looping that. I tried taking the battery cover off again and leaving it for hours, but same problem now. So I decided to leave it off for a day. By this time, I had my HTC Desire HD as backup, but it was unlocked, and at the time when I bought it, I didn't know anything about HSDPA numbers, so I could use my T-Mobile SIM, but no mobile network, since it's a Telus/AT&T phone.
I tried charging it, but this time, it lasted for a whole week. After rebooting over and over, it would last 3 hours, then stop because the battery would die out. So I just left it, and left it, and weeks went by, and my warranty had long since expired, so I couldn't go to HTC about this. I even called them to see what I could do, and they told me to do a Factory Reset, well... here is a list of the things I tried:
- IMAGE CRC: At first I didn't know what this was, and so I looked it up. After finding out what it was, I tried it, and I got two numbers: BL CRC-0xD19F79E1 and OS CRC-0x4CC706B. I looked those up on the internet and got nothing. I restarted the phone, and nothing happened at all. (If there was something else I was supposed to do here, please tell me!)
- Factory Reset: This was the LAST thing I wanted to do, but I had no choice and I tried it, hoping the error would be fixed. So I scrolled down to it, everything seemed to be normal, it gave me a warning, and I clicked it ... I was very suspicious of this, because as soon as I clicked "Factory Reset", it said "Reset complete. Press Volume Down to restart". I mean IMMEDIATELY after. Now, I KNOW that Factory Resets take much longer than an instant to actually have happened. But I restarted anyway. ... Nothing, still. I tried it several times after that, only to get the same result.
Those are the two options I tried, besides looking on the internet... if I can avoid buying a new Radar, I would like to, at all costs, because the next time I have a decent amount of money, I would like to save it for something else. Is there anything else I could try to resolve this issue, or at least gain more information on the problem?
Thank you all very much for reading my post!
BladedYouth said:
Hey, guys, I know there are a lot of these issues with a lot, if not all, of the HTC smartphones, but I've only seen a few of these for the HTC Radar, and they all seem to give the same answers. Hopefully my explanation of the problem will help!
So, I got the phone thanksgiving weekend 2011, so I've had it for about a year. One day around the beginning of April this year, my phone randomly began a restarting loop, where it would gradually restart itself from a blank white screen over and over, then it went to the HTC screen over and over, and then periodically switched between the HTC screen and the black "Windows Phone" load screen over and over again. I tried taking off the battery cover and leaving it for a couple of minutes and then hours, but I put it back and it just kept rebooting. I was left without a phone for about two days.
On the second day, I put it on the charger and left it in my dorm while I was in class all day, and when I came back, it was rebooting still, but I noticed that it always made it to the "Windows Phone" logo loading screen and then restarted. After about 4 reboots, it went back to normal and I was able to use the phone. After the next couple of months, it stopped doing it in such a long period of time, but the battery usage went up almost 30-40% than what it used to be. Once in a while, it would reboot once, but then it would be back to normal.
This time, in late October, it started the reboot thing again, but this time, only going up to the HTC screen and looping that. I tried taking the battery cover off again and leaving it for hours, but same problem now. So I decided to leave it off for a day. By this time, I had my HTC Desire HD as backup, but it was unlocked, and at the time when I bought it, I didn't know anything about HSDPA numbers, so I could use my T-Mobile SIM, but no mobile network, since it's a Telus/AT&T phone.
I tried charging it, but this time, it lasted for a whole week. After rebooting over and over, it would last 3 hours, then stop because the battery would die out. So I just left it, and left it, and weeks went by, and my warranty had long since expired, so I couldn't go to HTC about this. I even called them to see what I could do, and they told me to do a Factory Reset, well... here is a list of the things I tried:
- IMAGE CRC: At first I didn't know what this was, and so I looked it up. After finding out what it was, I tried it, and I got two numbers: BL CRC-0xD19F79E1 and OS CRC-0x4CC706B. I looked those up on the internet and got nothing. I restarted the phone, and nothing happened at all. (If there was something else I was supposed to do here, please tell me!)
- Factory Reset: This was the LAST thing I wanted to do, but I had no choice and I tried it, hoping the error would be fixed. So I scrolled down to it, everything seemed to be normal, it gave me a warning, and I clicked it ... I was very suspicious of this, because as soon as I clicked "Factory Reset", it said "Reset complete. Press Volume Down to restart". I mean IMMEDIATELY after. Now, I KNOW that Factory Resets take much longer than an instant to actually have happened. But I restarted anyway. ... Nothing, still. I tried it several times after that, only to get the same result.
Those are the two options I tried, besides looking on the internet... if I can avoid buying a new Radar, I would like to, at all costs, because the next time I have a decent amount of money, I would like to save it for something else. Is there anything else I could try to resolve this issue, or at least gain more information on the problem?
Thank you all very much for reading my post!
Click to expand...
Click to collapse
May be it is a Hardware problem. Why you don't try to put HSPL and to cook custom rom ? I do this on mine few days ago and now the phone is more useful than before. I cooked HD2O ROM and till now working fine for me. When you change bootloader with HSPL may be it will work out if it is a Software problem. Also you need to change Radio Firmware other wise the device can not boot. When I am doing HSPL a few times phone just loop restarts and not start but after I do everything like it was in treads here and flash new radio the phone is working fine now. But may be there is a Hardware problem.
Tonyco1 said:
May be it is a Hardware problem. Why you don't try to put HSPL and to cook custom rom ? I do this on mine few days ago and now the phone is more useful than before. I cooked HD2O ROM and till now working fine for me. When you change bootloader with HSPL may be it will work out if it is a Software problem. Also you need to change Radio Firmware other wise the device can not boot. When I am doing HSPL a few times phone just loop restarts and not start but after I do everything like it was in treads here and flash new radio the phone is working fine now. But may be there is a Hardware problem.
Click to expand...
Click to collapse
Thank you very much for responding! So just to be clear, how exactly do I go about flashing a ROM on the Radar, and a new radio? On Android phones, its much easier to root the device or simply place the ROM folder in there and make it work. I have no experience with doing this to a Radar, as I was previously led to believe that this was impossible. Should I just browse this forum?
BladedYouth said:
Thank you very much for responding! So just to be clear, how exactly do I go about flashing a ROM on the Radar, and a new radio? On Android phones, its much easier to root the device or simply place the ROM folder in there and make it work. I have no experience with doing this to a Radar, as I was previously led to believe that this was impossible. Should I just browse this forum?
Click to expand...
Click to collapse
Yes just browse this forum but only section about Windows Phone 7 Development and Hacking. You will find DFT exclamation of how to install HSPL. In mine it was very easy because I not receive Country ID fail my phone was buy in Europe. If you receive Country ID error you need to proceed with goldcard it is explained there but first proceed without goldcard if it work it is very easy. Also when you proceed SPL2.05 it is not clear in the topic but you need to be in bootloader so you should start your phone with VolUp and VolDn keys pushed this is not explained in the topic and I waist a lot of time till figured out. After that just download one of the 7.8 ROMs here in Radar section and write it down. Also download new radio and use some RUU to put it on the phone before the ROM other wise the phone can not boot. Try and after that if you have problems write down here.
MY RADAR TURNED BACK ON! I don't know exactly what happened, but after a couple of reboots, the battery indicator flashed and then it rebooted twice until finally turning on the full amount.
Tonyco1 -- Thank you very much for staying with me and replying to my request! Although what you suggested is not needed for my booting issue, I'm going to try it anyway to see if I can actually boot 7.8! Thank you again.
BladedYouth said:
MY RADAR TURNED BACK ON! I don't know exactly what happened, but after a couple of reboots, the battery indicator flashed and then it rebooted twice until finally turning on the full amount.
Tonyco1 -- Thank you very much for staying with me and replying to my request! Although what you suggested is not needed for my booting issue, I'm going to try it anyway to see if I can actually boot 7.8! Thank you again.
Click to expand...
Click to collapse
OK but you need to but some custom ROM my phone turn back on when I put custom ROM a lot of features and works really good.
Hello:
So, the bottom line up front is I need help solving a problem with my now third, new Verizon Samsung Galaxy S4--it keeps restarting on its own, at random times, but most often after I lock the screen.
To go in more depth, if you think you may know the solution: I purchased the S4 when it first came out, some time in 2013 (not sure specifically, but it was new) and it worked just fine for 13 months (1 month past the warranty of course); this was back in August, when I got the latest Android update pushed to my phone from Verizon (4.4.2). A couple of weeks later, I would occasionally get overheating warnings that would very quickly disappear (like within a few seconds), and then the device started restarting itself... I cannot predict when it will restart, it's random, but like I said above, it usually happens most right after I lock the screen by pressing the right side button once. I started looking around on the internet for a solution then, but only found a couple of videos from earlier in 2013 where people were having battery problems (Google search has been letting me down more and more as the years pass). One day while at work, I was listening to Pandora as I always have with the phone in my front pocket, as I always have. A few hours later when I got home, not having taken the phone out of my front pocket since those last few hours at work, I went to answer a text message I had received; when I unlocked the phone, the screen was black, except for a small bit of white showing through some cracks UNDER the LCD, UNDER the screen protector, INSIDE my Otterbox Defender... the phone appeared to be working still, but the screen and touch screen did not. At that point I was pretty damn irritated and tried to find answers for a week with no luck... I called Verizon, they sent me on a goose chase to Samsung, who sent me back to Verizon, who got me in a conference call with Samsung and then left the call, and then Samsung ultimately said I would need to pay for repairs to the phone... SO... I went back to Verizon who again said I would have to talk to Samsung, but instead I just settled to giving Asurion (my phone insurance through Verizon, whom I pay an extra $9 monthly) $99 as a deductible to get a replacement S4...
Two days later I receive a brand new S4... spend hours setting it up the way I had my prior one... wasting tons of my valueable time to do so and bandwidth from my Concast ISP and the data cap they've decided to give us... one week later, the phone starts restarting itself... and this one did it more often than my prior one... EVERYTHING is up to date, minus a good amount of useless bloatware apps I never use from Samsung, like "Watch On," which I ignore... but everything necessary, I update. So, I go back to Asurion, who quickly ships me a 3rd S4...
Two days later I receive that third, brand new S4... spend hours setting it up the way I had my prior one... and now, this one is also restarting itself randomly. Interestingly, when I visited family for Thanksgiving, it restarted itself over and over and over much more frequently than when I'm at my place... at my family's place, they have very poor reception, and my phone usually has to work more to try to get the signal... IDK what the deal is, but maybe that information can be helpful to y'all.
Other things to note:
1) When I check the "RAM manager" by holding down the home button and then choosing "Task Manager", the phone is always using at least 800MB of 1.77GB of RAM... even when I choose "Clear memory" and it tells me 30 something apps have been closed... it jumps right back up to 800-900MB of usage.
2) I've tried factory resets on all three phones; with the first one where the screen cracked inside, I hooked the phone up via HDMI... within a couple of days, the restarting begins.
3) With the first replacement I received, I could not sent text messages with the default messenger app... and shortly after trying, it would restart.
4) I have used the same SIM card with all three phones since the issue began, when I first got the 4.2.2 update... I do not suspect the SIM card is the problem, but I'm also not savy with the phone... I know my way around it, but I'm not in the know.
5) I thought maybe it started because of some apps I had been trying, so I had deleted them, and the problem still persists.
6) I constantly have a Pebble Bluetooth smart watch connected to the phone... I have since I got it last Spring (2014).
7) I have never rooted the S4, overclocked it, underclocked it, or modded it in anyway because I do not know how, and I was afraid of what could happen in the future with whatever ROM I did flash onto the device if Verizon tried to push an update to it... I just don't know anything about the whole process, and I'm assuming it requires a lot of know how and babysitting of the device... I just want it to work.
8) I've replaced the battery twice; it doesn't seem to be the problem.
9) I've cleared the cache through the boot manager thing gotten to by holding a combo of buttons on the device while it's rebooting... it did not help.
Edit: 10) Today while I was listening to Pandora in the car, the audio began to skip and scratch, and then it paused for a moment, and then the phone restarted itself.
11) I forgot to mention that the reboot process itself is very fast compared to a manual restart performed by me... the phone will go black, the Samsung color rings will show a second after that, the logo appears then, the screen flashes the red Verizon logo, and then the devices is ready to be used... it's less than 10 seconds.
I've been searching around on the internet for about two months now while dealing with the problem and I can't find anything useful. Does anyone here know what my issue is and how I can fix it? Is there a way to pull error logs / information from the S4 somehow to give to someone to diagnose, like DxDiags on PC? I don't know how to read that stuff myself, but I know it can be very useful... I just don't know how to find that info inside of these very locked down ****boxes we call smartphones...
I truly appreciate any help I can get--sorry I can't offer anything in return; if I can't find a solution, I'm just going to go to my backup phone from 2011 (Droid X), and I will definitely never purchase another Samsung device, especially after they blamed me as the cause of the problem without even seeing the phone...
Thanks.
The problem is with the NG6 software build, and "probably" not with your phone. Go to Settings>About Phone> and see what Baseband Version is on your phone. If the last 3 letters are NG6, that's probably the problem. There is a new OTA update (as of 12/1).....Baseband Version ending in NK1, which corrects the rebooting problem. Either install the new update, or go back to the NC5 baseband version and that should solve your problem. Both NK1 and NC5 can be rooted if you desire.
Hi there! Long time reader, first time poster (TL;DR below...but it should be a quick read anyways )
So I've been using this S2 of mine for almost 4 years now, haven't had any trouble (other than a couple of battery swaps). For the past 6 months or so I've been using CM 12.1 nightlies without issue.
The events:
- The other day, my phone froze (I wasn't using it when it froze, it was when I went to use it that I noticed...it was on the wifi selection screen if it matters), so I held the power button to shut it down, and when I powered it back up, it just froze at the Samsung boot screen (with the usual yellow triangle).
- At this point, I was able to reboot into download mode at will, but any attempt to boot to recovery just led to the freeze at the Samsung boot screen. Also, the phone would automatically reboot itself at this point any time I inserted the battery (I was of course putting the battery in and out trying everything I could).
- I would have reflashed from Odin at this point, but since I was away for a few days I just kept trying to reboot into recovery, to no avail. On one of these attempts (power+vol up+ home) it showed the Samsung boot screen, and then immediately shut down and I haven't been able to get anything onto the screen since
I'm now home, and I can't seem to fix it. If I plug the phone into a charger, the top half or so of the phone gets warm, and it also seems to get warm if it isn't plugged in and I try to power it up. I was thinking maybe the phone was maybe doing the same thing as before and just not showing anything on screen, but I blindly do the steps to get it into download mode, and Odin doesn't recognize anything (drivers are definitely installed). I have also tried other batteries, no luck.
Any ideas of what I might try? I'm willing to do anything. For the record nothing happened to the phone at all when this all happened (no dropping or water damage or anything, just my attempts at booting into recovery). Maybe I should try a jig? I'm also open to opening the phone if there's something I can do, though I don't have experience with this.
Thanks so much for any suggestions!
TL;DR: phone froze (running CM 12.1 nightly), held power to shut it down, and then consistently froze at the boot screen on any attempts to power it on. After a few attempts at booting into recovery (the phone would only freeze or enter download mode) the screen suddenly shut off and I haven't seen anything on it since no matter what I try. I can't think of anything that happened to the phone I'm open to any and all suggestions! Thanks
One sentence amongst your description stands out like a 'sore thumb'.....
That the device heats up towards the top when you attempt to charge it.......
Until you try a jig I can't be certain, but that heating coupled with a dead/unresponsive screen along with a lack of recovery and/or download modes (download mode is 'hardwired' into the device, and NOTHING should be able to corrupt it) are the primary symptoms of a failed motherboard.......
That is my opinion based on my experience in these forums and personal experience with a (now dead) S2 (one of two that I own).........
Get the jig just to be sure, but I'd be surprised if it had any effect.....sorry to be typing something you don't want to read, but you said it yourself, the device is 4 years old....it's been in service roughly twice as long as most smartphones, and they don't last forever....
http://i.imgur.com/rVnFwJM.jpg
Thanks dude! It's nice to have some idea of what happened. I am indeed very happy my phone has lasted me this long, and my friend is gonna give me an extra S2 she has anyways it seems so it's all good!
I'll try the jig and update here with the result (I ordered one online...will arrive in January sometime)...just in case anyone is curious.
smacsmac said:
Thanks dude! It's nice to have some idea of what happened. I am indeed very happy my phone has lasted me this long, and my friend is gonna give me an extra S2 she has anyways it seems so it's all good!
I'll try the jig and update here with the result (I ordered one online...will arrive in January sometime)...just in case anyone is curious.
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Click to collapse
Yeah....be good to know the results.....If only to confirm or refute what I've suggested.....
http://i.imgur.com/rVnFwJM.jpg
keithross39 said:
Yeah....be good to know the results.....If only to confirm or refute what I've suggested.....
http://i.imgur.com/rVnFwJM.jpg
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Click to collapse
Sorry it took me a while...the jig was in the post haha. It didn't do anything at all (no response when I plugged it in) so I think it's safe to say you were bang-on and the motherboard failed! Happily using a new S2 (with CM13.0 now ) on behalf of my friend though.
Thanks again.
Sounds familiar. Happened to me also due to failed cyanogenmod update (CM13). Only thing that works is download mode, so i'm not given up hope yet.
I can't post a link but google ''Apply Update Failure samsung galaxy s II'' there's a thread about this on the cyanogenmod forum.
Elaias said:
Sounds familiar. Happened to me also due to failed cyanogenmod update (CM13). Only thing that works is download mode, so i'm not given up hope yet.
I can't post a link but google ''Apply Update Failure samsung galaxy s II'' there's a thread about this on the cyanogenmod forum.
Click to expand...
Click to collapse
oh mine was just straight up dead...no download mode or anything visible on the screen (and nothing to do with CM13 either)
hope you get yours sorted out! have you tried reflashing anything via Odin while in download mode?
Its hard to tell you and hard to accept. You can almost give up the hope, your NAND Chip is just what we call " wear-out ". In the most cases no write is possible anymore, the funny part is -> sometimes read is still fine. If that is the case: The system is booting and working, but saving just nothing. The NAND is frozen to its state before it broke.
At our local store, customers come to us with issues like " Factory Reset impossible ", "Can't delete my Files" "Can't create files". All these Devices have inaccessible NAND's and inaccessible Recovery. Only Bootloader is working, but as the NAND is broken, flashing doesn't change anything.
smacsmac said:
oh mine was just straight up dead...no download mode or anything visible on the screen (and nothing to do with CM13 either)
hope you get yours sorted out! have you tried reflashing anything via Odin while in download mode?
Click to expand...
Click to collapse
yeah, flashing with odin did the trick. now running cm13 and everything works fine. sorry to hear that your phone turned to brick.
Hello all,
This past Saturday my Galaxy S8+ froze up and the display showed a bunch or discolored horizontal lines, then it shut down and went into a bootloop. I know this isn't an uncommon issue but it seems this usually happens from a botched upgrade/flash attempt. I've never attempted this and was just using my phone as normal. I have read through many bootloop threads and tried many of the troubleshooting steps, but I haven't had any success.
I'm starting to wonder if there's a hardware issue now. I'm hoping someone might have a new suggestion I could try, or point out any mistakes I made in my previous troubleshooting. I'm new here, so sorry if I left out any important details below, please let me know.
Thanks for helping!
Symptoms:
Phone is in a bootloop.
On occasion it comes out of the loop and displays some new phone setup menus (since I did a factory reset), but it crashes fairly quickly (and display gets distorted again) and re-enters the bootloop. It varies how far I can get into the new setup, before it crashes, but generally it's a matter of seconds.
On occasion, it comes out of the loop and displays a "System software not authorized by AT&T" message.
Attempts to fix:
Went into recovery*mode, wiped cache. Same results on reboot.
Went into recovery*mode, factory reset device. Same results on reboot.
Odin tool (3.13.1) and flashed lastest G955USQ8DTJ1_G955UOYN8DTJ1_VZW from sammobile. Device reached 32%, stayed for a while, then rebooted and back to bootloop.
Samsung Smart Switch, but then I discovered they neutered the app and it won't recover a device anymore.
Tried iMyFone Fixppo, but it failed to find latest FW for the device.
Phone details:
S8+ (SKU: SM-G955UZKV)
Bought it reburb 2 years ago.
It has never been rooted by me, so everything is stock.
Memory was close to full, but I still think I had a few GB left.
It was on VZW when bought, but I had it unlocked so I could use on AT&T.
In downloader mode, it says "Carrier: VZW", "Current Binary: Samsung Official", "FRP Lock: On", "Warranty Void: 0x0"
BlackbirdKM said:
Hello all,
This past Saturday my Galaxy S8+ froze up and the display showed a bunch or discolored horizontal lines, then it shut down and went into a bootloop. I know this isn't an uncommon issue but it seems this usually happens from a botched upgrade/flash attempt. I've never attempted this and was just using my phone as normal. I have read through many bootloop threads and tried many of the troubleshooting steps, but I haven't had any success.
I'm starting to wonder if there's a hardware issue now. I'm hoping someone might have a new suggestion I could try, or point out any mistakes I made in my previous troubleshooting. I'm new here, so sorry if I left out any important details below, please let me know.
Thanks for helping!
Symptoms:
Phone is in a bootloop.
On occasion it comes out of the loop and displays some new phone setup menus (since I did a factory reset), but it crashes fairly quickly (and display gets distorted again) and re-enters the bootloop. It varies how far I can get into the new setup, before it crashes, but generally it's a matter of seconds.
On occasion, it comes out of the loop and displays a "System software not authorized by AT&T" message.
Attempts to fix:
Went into recovery*mode, wiped cache. Same results on reboot.
Went into recovery*mode, factory reset device. Same results on reboot.
Odin tool (3.13.1) and flashed lastest G955USQ8DTJ1_G955UOYN8DTJ1_VZW from sammobile. Device reached 32%, stayed for a while, then rebooted and back to bootloop.
Samsung Smart Switch, but then I discovered they neutered the app and it won't recover a device anymore.
Tried iMyFone Fixppo, but it failed to find latest FW for the device.
Phone details:
S8+ (SKU: SM-G955UZKV)
Bought it reburb 2 years ago.
It has never been rooted by me, so everything is stock.
Memory was close to full, but I still think I had a few GB left.
It was on VZW when bought, but I had it unlocked so I could use on AT&T.
In downloader mode, it says "Carrier: VZW", "Current Binary: Samsung Official", "FRP Lock: On", "Warranty Void: 0x0"
Click to expand...
Click to collapse
Can you run graphics test from recovery mode? i guess something is overheating during boot. Can you put the device on a water/ice bag to lower the temp, and do factory reset ? as you said it displays some setup menus so its worth a shot
d3athAdd3r said:
Can you run graphics test from recovery mode? i guess something is overheating during boot. Can you put the device on a water/ice bag to lower the temp, and do factory reset ? as you said it displays some setup menus so its worth a shot
Click to expand...
Click to collapse
Seems to perform the graphics test fine. It cycles through all the graphics tests and then returns to the recovery menu.
I tossed the phone in the freezer for a few minutes and then tried a normal reboot. To my surprise it booted into the new phone setup menu, but this time it didn't crash right away. I was actually able to get through the complete setup and restore all my old apps (hooray google backups). In all, it probably worked for about 5 minutes before crashing again. I repeated the test, and verified that cooling it down does help.
So, great call! But what does that mean? Is there anyway to determine what is causing is this without a tearing it open?
BlackbirdKM said:
Seems to perform the graphics test fine. It cycles through all the graphics tests and then returns to the recovery menu.
I tossed the phone in the freezer for a few minutes and then tried a normal reboot. To my surprise it booted into the new phone setup menu, but this time it didn't crash right away. I was actually able to get through the complete setup and restore all my old apps (hooray google backups). In all, it probably worked for about 5 minutes before crashing again. I repeated the test, and verified that cooling it down does help.
So, great call! But what does that mean? Is there anyway to determine what is causing is this without a tearing it open?
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Nice i guess it should be the processor thats heating.
You can find the location of the heatsink/thermal paste/process here (around 3:30 min mark)
https://www.youtube.com/watch?v=GRmY-4HKVIk&t=362s&ab_channel=JerryRigEverything
The processor seems to be located below Bixby button.
You can also try gently pressing the spot where processor is located to seat it back, but am not sure how long it may stay. if the thermal paste is dry and not in contact with processor, you have to open the device.
Or you can take it to a local repair shop for some assistance.