[Q] SGS2 wont boot after OTA official upgrade - Galaxy S II Q&A, Help & Troubleshooting

Hi folks,
Yesterday my phone was weird: The home button was opening a different page than the launcher (a sort of launcher with a clock and buttons, and when I tapped "escape" it drives to the official launcher), and some functions weren't working (such as the rotate toggle). Looked like something was updated, but a reset was needed.
Then I reseted the device and then it went to the ODIN mode with the green robot and the message "downloading, don't turn off target". It took too long. Like more than 4 hours. I left the device plugged in charger and went to bed.
Today I found the device turned off (probably the updated ended) and I can't boot. Actually nothing happens, no button combination, etc.
I tried to pull off the battery and put it back again, nothing happened.
I tried a soft wipe (hold the ON button for 7 seconds without the battery), nothing happened.
Could someone please help?

So....what firmware was installed originally? which rom did you try to install? It's all in the details. Oh, and which model Galaxy S2 do you have?

stoney73 said:
So....what firmware was installed originally? which rom did you try to install? It's all in the details. Oh, and which model Galaxy S2 do you have?
Click to expand...
Click to collapse
I didn't try to install anything.
I was using the latest verision of my country stock rom (The carrier is Claro). The update was automatically, I didn't choose to do that.
The model is I9100GT

Get, buy, borrow another full battery or external charger to charge your dead battery.
If out still won't boot:
try boot into recovery and factory reset
Or
Boot into download mode and flash firmware downloaded from here.
http://forum.xda-developers.com/showthread.php?t=1075278
Edit: look for only G model firmware.
If none there, use check fus for windows to find and download firmware for your device, then flash in Odin.
www.fus.nanzen.se
Sent from my GT-I9100 using xda premium

I had a similar problem with a kies flash before. If it will go at least into download mode when a charger (not just a USB from a computer) is connected, your battery might be completely flat. try charging it in another phone.
Here is my panic thread: http://forum.xda-developers.com/showthread.php?p=22408184#post22408184

Hi Folks,
Thank you very much for the replies.
Now the cell phone is working. I guess that the charger went broke during the night (I have no idea why). I connected via USB and then I heard a sound, after that it went back to the upgrade screen (odin), and I reseted.
Now its working and I have no idea of what happened.

so why in hell would you leave your phone to download mode for night.
Sent from my sgs2 running cm9 using xda app

Related

Can't get to download screen. Bricked?

I was trying to use odin to get back to a stock rom (UVJFD). Phone was in download, odin was running. Odin suddenly said "not connected" and nothing was listed where com is usually displayed. I unplugged my phone and it immediately displayed a phone, exclamation, computer.
I tried the three button reboot, but it immediately went back to this screen. I've tried all of the options in the 'So you've bricked your phone' stickey, except the soldering method and I can't get it to do ANYTHING.
What do I do? I'm trying to get back to factory. At this point, I may need to send it in.
Just do what you would normally do to get back to download mode. I can't specifically remember the buttons but just jeep trying until it shows up on odin.
Actually I read somewhere that the phone "!" Cpu means that it will already work with odin so I guess try that. Im not certain that it will work immediately. If that doesn't work then do what I said first lol. Don't worry its not bricked this happened to me the day I got my phone hahaha
Sent from my SGH-T959 using XDA App
Phone....!.....PC is just like download mode. I was able to recover from it, when it happened to mine. Maybe the JFD you had was faulty?
But ODIN should recognize your phone.
Completely bricked?
shelbydz wrote: I tried the three button reboot, but it immediately went back to this screen
Click to expand...
Click to collapse
Does that imply that you saw some sort of life in the screen such as any light on the display? If that is the case it is probably worth trying the 301k Resistor method to get to the download screen.
On the other hand if your phone is exactly in the same shape as my phone is then I really feel for you. My screen never shows any life. It appears like the battery is dead and I've tried everything and I know the battery is fully charged.
So my next step is either finding someone with a jtag interface or send it off for repair.
Anyone have suggestions in that next step? Any weekend warriors with a jtag interface where we can send it? Any suggestions as to where to send it (t-mobile is not an option since I'm not using t-mobile)
It keeps rebooting to the icon screen (phone ! computer). I tried plugging it back in, but odin didn't see it.
I'll have to play around with it a bit more to see if I can get it to work.
thx
shelbydz said:
It keeps rebooting to the icon screen (phone ! computer). I tried plugging it back in, but odin didn't see it.
I'll have to play around with it a bit more to see if I can get it to work.
thx
Click to expand...
Click to collapse
Odin should recognize it, try using a different ODIN. Make sure ODIN is running first, with the proper files already loaded "PDA, MODEM, CSC" then plug in phone.
that seemed to work. (loading the files to odin, then connecting) Apparently I had a bad ROM image. It's booting up now.
Thanks for all of the help.

[Q] HOW to Update or reflash Galaxy s2 Bootloader

i have a problem with my galaxy s2 exactly like this: got a wierd problem. My galaxy S2 refuses to shut down.
When I shut the phone down without a USB cable connected then the phone turns black and the 'menu and 'return' button lights up then the phone vibrates. at this stage before the buttons turns black and the phone was totally shut down. now instead the buttons are still lit after the vibration and then the phone starts up again.
With a USB plugged in after the vibration when shutting down I get to the screen where the battery indicating charging is shown, but as soon i remove the USB cable the phone starts.
The power button is not stuck.
It's not rooted: cleared the cache in 3e recovery. No change.
I fully charged my battery. No change
I drained my battery to 0%. No change
I tried another battery. No change.
Well i thing i should Re-flash a Bootloder or install another one, is there any idea how to do that throw ODIN1.85 Please please please help me im just
First step back up data factory reset phone .
Do not start messing with bootloaders flash a full stock firmware if you have to .
jje
Bootloader via Odin available in intratechs thread. In post where ki3 is. Maybe 3rd post???
http://forum.xda-developers.com/showthread.php?t=1075278
Sent from my GT-I9100 using XDA App
WELL....
Can you people be more clearly on Ur Tips Please, Do i have to Update Bootloader or Bootloader will Automatically update after i flash a Full firmware via Odin or during update a frimware do i need to click a tick there writting "UPDATE BOOTLOADER" or not or let me know any Solution pleaseeeeeeeeeee . English is my 3rd Langue so Please try to explane with a Simply English Brothers and sister. I feel sucks No one can fix my Problem here in Kosovo.
If you are going to flash New firmware via Odin from intratech you will automatically get the right (older) bootloader that lets you clear the flash counter with the jig.
If you have already flashed KI3 or KI8 from somewhere else chances are you will have the new bootloader flashed on your phone.
If that is the case intratech has the older bootloader that you can download and flash via Odin without having to flash the full firmware again.
Read the 1st few posts in his thread carefully for the exact steps to follow.
Good luck.
Sent from my GT-I9100 using XDA App
@ aceofclubs and Others
Well i try Many of Roms to flash i try with older and newer Problem still there, i think i need to Change a Usb Port (Electronic Usb maybe i demage with a bad Charger or Who know). Is there any Idea where i can Buy&Purchase Galaxy s2 Electronic Parts
I has this same problem after flashing ki4. Would not shut off. Kept booting up every time I tried to switch off. After a bit of searching I found a fix got my phone. Just remove the battery for 30 seconds. Reinstall and try again. Might not work for you but won't cost anything to try.
Edit
Just read. You already tried another battery do this won't help you. Sorry.
Sent from my GT-I9100 using Tapatalk
YEAHH
dear Friend thanks for trying to help me, but i can not find a human being that can tell me how exactly to fix my problem i have this problem 1 month, for me it will be enough to know if is a Software or hardware problem. Problem is here in Kosovo we dont have a Samsung Store that can fix, only a solution is to send in Germany(1.441 Km ) , it will coast to me just a new Galaxy s2... i have exacly this problem like this guy in youtube here is a link : http://www.youtube.com/watch?v=eBB_3qtgj68
or check this thread: http://forum.xda-developers.com/showthread.php?t=1237228

S2 refusing to turn on

Hi. i have got my s2 since 10 months and no hassle. however since yesterday, the screen wont turn off and i could not make it turn on again using the home key. finally it completely switch off and i could not switch it on(neither soft or hard reset helped).
I just left in with the wall charger. nothing on the screen but once the battery was full, it vibrated and i could switched it on. it worked flawlessly for the day but now while i was using gtalk, same thing happened and i could not switched it on.
what could be the problem? i am an international user and bought the s2 from unlocked-mobile.com.
kindly note that i made no tweaking nor any custom firmware nor installed any new software. i only reecntly removed go launccher.
kindly help me please
if download mode works then u can flash ,or in recovery mode factory wipe.....yes forgot does it show charging batt icon ,wile charging?
Charge battery .
backup data factory reset phone ..
That fails try another battery .
That fails try Samsung service centre .
Or try download mode and flash new stock firmware via Odin .
jje
ok will try flashing ics. but why would this happen? what is the cause of such problem?
ok i did flash the ics and still the same problem. help me plz
Sounds suspiciously like the "Sleep of Death". Been discussed at length in dozens and dozens and dozens of threads here.
thanks. but why suddenly i am having this?
i have not installed any new kernel, firrmware or programs.
I dont understand why people with stock not rooted phones comes here and thinks this is samsung service, since it is purely stock..go to the retailer or call samsung.
Sent from my GT-I9100 using xda premium

Ruined my SGII with flashing?

Hello all,
I was already in the possesion of a SGII that has been rooted and flashed before. I came from Hyperdroid Androidmeda with Android version 2.3.6. This morning i took the guess it was a nice day to flash a rom with ICS Android 4.0.x. My choice was the rom Resurrection Remix ics v2.5.2.
I followed the exact instructions to Wipe Data, Dalvic Cache and Wipe Cache partitions before i flashed the rom. This went well, at this moment i didn't get any errors or bugs i.e. At the moment my SGII was booted i discoverd the rom a bit. And i came to the conclusion my camera was not working,eve as my outgoing calls. When i called somebody it rang barely one tone before my phone shutted itself down and rebooted. When i get an incoming call i couldn't see the Green answering button neither i saw the red denial button. So i this was just a guess.
But the main problem: I rebooted my phone manually and then he just shut down. I couldn't get him on anymore. On no circumstance it is possible for me to get my phone on. Battery in and out has no effect. Even connecting my phone with an usb cable with the PC gave no reaction. When i connected it to the charger i saw a blink of the loading battery but after a couple seconds my phone went off. And i dont get him on anymore.
What is wrong, what can i do to solve this?
Enter Download mode and check if Odin sees the phone.
Dude..odin pc is your last hope..never mind..it should work...try flashing a rom from there...
Sent from my GT-S5830 using Tapatalk 2
I did now try to boot it that way.
I see:
Odin mode
Productname: GT-i9100
Custom Binary Download: YES (2 counts)
Current Binary: Custom
[GREEN ANDROID MAN]
Downloading...
Do not turn off target !!
And this is showing to me for at least two minutes. Will this take a while?
Try to flash a rom straight forward.....if it works...it works...nd if it dont...it dont
Sent from my GT-S5830 using Tapatalk 2
Hamstert said:
I did now try to boot it that way.
I see:
Odin mode
Productname: GT-i9100
Custom Binary Download: YES (2 counts)
Current Binary: Custom
[GREEN ANDROID MAN]
Downloading...
Do not turn off target !!
And this is showing to me for at least two minutes. Will this take a while?
Click to expand...
Click to collapse
It's clear you don't know how to use download mode. How did you flash your first ROM or root in the first place???
While in this mode, it is expecting you to connect the phone to a computer and use a flashing tool (Odin/Heimdall/etc) to install software to the device.
You can reboot just by holding the power button down for about 10 seconds.
ctomgee said:
It's clear you don't know how to use download mode. How did you flash your first ROM or root in the first place???
While in this mode, it is expecting you to connect the phone to a computer and use a flashing tool (Odin/Heimdall/etc) to install software to the device.
You can reboot just by holding the power button down for about 10 seconds.
Click to expand...
Click to collapse
The first rom i flashed was with CWM. It was quite easy and i rooted it more than half a year ago that was not that hard to. This is the third rom i flashed and now it all gets wrong.
I already had my connection between phone and computer but it doesn't respond any further.
At this moment i dont even get him in download/recovery mode anymore. Everytime i try it shows a second of a empty charging battery and it shuts down.
Manvendra05 said:
Try to flash a rom straight forward.....if it works...it works...nd if it dont...it dont
Sent from my GT-S5830 using Tapatalk 2
Click to expand...
Click to collapse
At that point i ain't arrived yet, unfortunately.
Here a guide (with picture) to flash stock firmware with odin, but the process is similar for custom rom.
Hope this help
Now i finally got in download mode again.
I tried to flash the Siyah kernel 3.3.2 via Odin.
In the attachment you see the result which went really well i thought?
But now i rebooted my phone and i only come to the begn screen with Samsung Galaxy SII GT-i9100 and the usual Yellow triangle. At that point it shut down again.
ht tp://oi46.tinypic.com/2q1ibec.jpg
Your in a boot loop now. Follow this guide: http://forum.xda-developers.com/showthread.php?t=1108499
Read this as well to better understand Odin and flashing: http://forum.xda-developers.com/showthread.php?t=1075278
When you are in download mode, nothing happens until you connect it to your computer and flash a ROM via Odin (which you will be doing). Next time, read more.
Sent from my GT-I9100 using xda app-developers app
Thanks all for helping me, my phone works again by flashing it back to stock rom.
I dont have any root privileges and the yellow triangle is gone now. I already miss things as changing battery icon and ability to use camera when batterylevel is below 15%.
But for now on i will take a little easy with flashing.
Mate, here is a hint for you. You should really thank people who help you and not just say “thanks." It helps the people who contribute feel like their input was actually appreciated in your problem solving. And not just for one person, but everyone who helps. Just a hint.
Sent from my GT-I9100 using Tapatalk 2

[Solved] Samsung S6 Edge SM-G925F Static/Snowy/TV Screen

My download mode is working fine. everything else shows snowy/static screen. Also, I thought it was a software issue so tried flashing stock ROM via ODIN. but wasn't sure which variant I have. Only knew it came from the UK. and Flashing failed in the middle. Now I suppose I don't have any active ROM and probably phone doesn't charge because of its only light up when I connect it to my pc. I managed to boot into download mode but I'm not sure about which variant I have. Can anybody help me out here?
fayzanzahid said:
My download mode is working fine. everything else shows snowy/static screen. Also, I thought it was a software issue so tried flashing stock ROM via ODIN. but wasn't sure which variant I have. Only knew it came from the UK. and Flashing failed in the middle. Now I suppose I don't have any active ROM and probably phone doesn't charge because of its only light up when I connect it to my pc. I managed to boot into download mode but I'm not sure about which variant I have. Can anybody help me out here?
Click to expand...
Click to collapse
If it came from UK or almost anywhere is Europe it is most likely a G925F. If you look in download mode it will say the model. Show me screenshot of your download mode and I'll help further.
callumbr1 said:
If it came from UK or almost anywhere is Europe it is most likely a G925F. If you look in download mode it will say the model. Show me screenshot of your download mode and I'll help further.
Click to expand...
Click to collapse
Hey, Thanks for your quick reply I managed to find that out Also flashed firmware successfully. but that clearly didn't help.
G925FXXU6ERC1_G925FOXA6ERCC_G925FXXU6ERC1_HOME.tar
But its back again on that Snowy/Static Screen. And when I connect the charger or attach it to the pc, it keeps turning on and off by itself. If you can help me with that
Also, nothing happens by pressing the power button or any combination if I unplug the cable from PC or Charger.
I have attached the image of the Download Mode though if that helps.
fayzanzahid said:
Hey, Thanks for your quick reply I managed to find that out Also flashed firmware successfully.
G925FXXU6ERC1_G925FOXA6ERCC_G925FXXU6ERC1_HOME.tar
But its back again on that Snowy/Static Screen. And when I connect the charger or attach it to the pc, it keeps turning on and off by itself. If you can help me with that
Also, nothing happens by pressing the power button or any combination if I unplug the cable from PC or Charger.
I have attached the image of the Download Mode though if that helps.
Click to expand...
Click to collapse
So the phone doesn't boot up as normal? Do you have a picture of the static screen? I've never heard or seen this problem before and if flashing stock firmware doesn't fix it then it's possible it's hardware fault.
callumbr1 said:
So the phone doesn't boot up as normal? Do you have a picture of the static screen? I've never heard or seen this problem before and if flashing stock firmware doesn't fix it then it's possible it's hardware fault.
Click to expand...
Click to collapse
Nope, Phone doesn't boot as it normally does. It was even before I tried flashing firmware and messed it up. But managed to flash the firmware now. Odin Showed Flashed successfully and PASS and rebooted the phone as it was supposed to do. But after that, it went back to the static screen shown in the attached photo.
Do you know how can I Recover or/and Wipe everything from the phone using download mode?
Well, I took it for repairing and got to know that it happens when RAM stops working and there is a very slight chance of it being repaired which i took but it didn't help. Seems i have to get a motherboard replacement to use the phone again.
Thanks for the people who helped me. I'm closing this post.

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