Help: my samsung galaxy s2 dont boot up after update - Android Q&A, Help & Troubleshooting

hi, i was trying to update my SGS2 to ICS by myself using Odin, but something went wrong and now i can not get the phone start at all .
and i get an icon for a phone and a PC and a warring triangle to show me that the connection is lost
please help.

it's complicated
I had a situation like yours several days ago when I tried to install 3dot remover for my HTC one X.
I had to reinstall whole ROM to make it boot up again. I hope you'll find some other way.
Try clockwork recovery if you have any backup.

no backup
i have no back up, but its ok for my to reinstall the ROM but i dont know how to!

Can you post some pics or screenshot.. Have you tried starting Odin again..??
Did you try removing battery..??
If all these doesn't work out try usb jig..
And please post in s2 forum.. Sure you can get more answers there

sorry about the wrong place
because i am new member so am not allowed to post pics. yes i tried all that and it does not working.

Phone-!-pc mode is download mode. You have to re-flash rom in odin/heimdall.
Sent from my GT-P1000 using Tapatalk 2

Just search XDA for "rooting samsung galaxy S2" and then install new ROM. Few days ago I was just like you
Make some research here on XDA you'll find everything here. Or if you can not understand search youtube for video tutorials.

Related

Samsung Galaxy S2 Stuck on boot screem

hey guys!
So I have had my phone for about 3 month, and today I had decided that I should see if they're any firmware updates since I had not checked in a while. So I did a search in my settings and it said I need to update so I did so. So it downloaded and it seemed to install but when it went to reboot, it just stayed on the boot screen.
I went into recover mode and set it back to factory settings, but still had no luck. Any ideas what to do as plan b?
Give it a few minutes (5-10 Mins) for the first time after updating... It may seem locked up but usually its not the case... After the first boot.. It will boot normally again....
If truly not working suggest downloading latest firmware package for your model and try flashing via odin
hope that helps^^
Sent from my SHW-M250K using XDA App
http://forum.xda-developers.com/showthread.php?t=1108499
jje
nah I had no luck. I left it a good hour after the update and it still did it.
Is it possible to find the official firmware online?
alexbrugs said:
nah I had no luck. I left it a good hour after the update and it still did it.
Is it possible to find the official firmware online?
Click to expand...
Click to collapse
Branded Provider roms post dev section
Stock Samsung roms .
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
jje
Help out...Samsung galaxy can't boot
Hello Guys,
I am not sure whether I am putting right question in the right place or not? I hope you guys don't mind and apologize me as my mind not working due to my foolish act trying to fly even without wings.....
Here is the story
I got my galaxy s2 I9100 a week ago. I tried to go for root. for this I did it using Odin v1.85. My firmware KH5 as its not available here I tried a related one say KH4. I followed all instructions carefully. Successfully brought in download mode. selected the download mode. connected with odin and browse the PDA .tar file. my mobile was recognized by yellow indicating and I starting. It showed the process running and also showed yellow bar turning in green saying "Pass". But soon mobile stucked at boot page and a yellow triangle appeared. Now I realized I made something wrong in eager of rooting. I tried other .tar files like KH1, KH3 and even KF- etc. But same problem. I tried to solve it by bringing recovery mode but It can't go to recover mode even. Now I can only go to download mode can try flashing via odin but can't get my mobile ahead of boot logo. Please helppppppppppppppppppppppppppp
@ habeebrasheed,
Flash stock firmware from Intratech thread via Odin with phone in download mode.
Then you will have a working phone and can start fresh.
Sent from my GT-I9100 using xda premium
Thanks anyway
@UpInTheAir
Thank you for the suggestion
I have submitted it as the warranty still void ... lets see if they do it or reject straigh forward. Thank you. I will sure keep in mind your solution,
Thankssssssssssssssssssss

Vibrant Screen!!!

hi everyone i just flash a room from the passion team and the network didnt work for me and it was restarting my phone like crazy so i went to recovery and i wipe everything and reinstall it now my phone dont pass the vibrant samsung screen and i can't get into the recovery ether can some help meeee pleaseeeeeeee
Make use of "odin".......you guys really need to research these things before hand.
You need the pit and tar files to get back to stock and odin is your tool to get you there........go to the stickies thread in the developement section and "read"
Sent from my SGH-T959V,SGH-T959 using xda premium.
never mind guys thanks i already took care of this Odin and Donwloading mode is the only way out for this problem!! if anybody needs help hit me with the private messages

[Q] Black Screen Help!

Hi guys, just new to these forums. I was forced to sign up due to my problems. just about 2 days ago i flashed these to my Galaxy Note Korean unit (SHV-E160S):
Tegrak-Kernel-Build-32-for-SHV-E160S-FA09.zip
Tegrak-Kernel-Build-32-for-SHV-E160S-FA09recovery.tar
i used Odin to flash the recovery file then booted into recovery mode to flash the kernel.. im sure i did right because i was able to use superuser and change my boot animation. unfortunately i found another update to the .tar and .zip file. i'm pretty sure its for my phone too so i went ahead and did the same thing. i kinda made a mistake in the process, i think i wiped the cache and all. dunno if i wiped partition but in the end i am only able to go to recovery & download mode. the Note will power up but won't get past the "Galaxy Note" screen. after that i will just be black. it's weird because it can still connect to Odin on my laptop although the screen is still black. is it a soft-brick? right now i'm trying to download an ICS stock rom and will try flashing it with Odin. i someone can help me please do. sorry by the way if this is a Korean Galaxy Note. this is the best category i could post since the AT&T and the SHV-E160S are the same in specs and all. hope someone could help me and spare me the pain from sending my unit for repair!
Sounds like a soft brick.. it seems you flashed perhaps the wrong file the last time otherwise it would be working like the last flash? ..I don't use odin often but I would restore my backup or just start over and use the last files to flash until you find something different
yeah i tried the others. i am able to flash the 1st recovery.tar but i cant seem to copy the .zip kernel because i dont have access to usb
about to flash stock ICS using Odin, hope this works! i just have one file which is a .tar file, hope this is the right file and don't brick!
OMG, i just pissed my pants *kidding*, the flashing of the stock ROM worked! and not onl that, i'm on ICS! all thanks to xda=developers forum for giving me the idea to flash a stock ROM! thanks guys! i'll never root my phone again i'd rather stay safe. thanks for the reply friend! ICS rocks!
Could you give me stock ics rom for e160s? thanks
chelsea123 said:
Could you give me stock ics rom for e160s? thanks
Click to expand...
Click to collapse
WRONG FORUM
plz search next time
at least
or use google
SMDH

Galaxy s2 Bootloop [solved]

Hi,
I think i have forgot to turn on debbuging mode while flashing stock firmware and now i stuck at bootscreen.I have also turned off F. Reset Time in odin.Any help how i can make my phone alive or is it bricked?Btw i can get into system recovery and download mode
Flash any on click file with odin in download mode
manojcitc said:
Flash any on click file with odin in download mode
Click to expand...
Click to collapse
Hmm.. I I tried but no luck I stuck at boot logo
Sent from my GT-I9300 using xda premium
Should I flash cf root kernel and go into recovery and flash Rom, or send it to Samsung because there is no triangle?
Sent from my GT-I9300 using xda premium
Should I flash cf root kernel and go into recovery and flash Rom, or send it to Samsung because there is no triangle? <br />
<br />
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
If there is no yellow triangle, and your custom binary counter is zero, then just send it to Samsung.
Good luck
Swyped from Samsung Galaxy SII
Try that and after vo into recobery and wipe data,clear cache and flash new rom...
I had faced this problem in for so many times,i always use one click cm9 rom and flash with odin,and make sure that you dont touch any option in odin...
manojcitc said:
Try that and after vo into recobery and wipe data,clear cache and flash new rom...
I had faced this problem in for so many times,i always use one click cm9 rom and flash with odin,and make sure that you dont touch any option in odin...
Click to expand...
Click to collapse
I also had bootloop long time ago, but that was because I didn't made I factory reset. When I need to flash kernel via odin, I need debbuging on. I think I have to send it to Samsung. I am also such a dimbass to forgot to turn debbuging on:sly:
Sent from my GT-I9300 using xda premium
Can I turn on debugging while I can't access my phone. If yes, how?
Sent from my GT-I9300 using xda premium
Problem solved by factory reset in system recovery
Sent from my GT-I9300 using xda premium
I had a boot loop on my galaxy s 2 .. out of nowhere didnt do anything.
It was too weird. I spent time reading lots of forums about this and saw different techniques.
What i did was i flashed back to 2.3.6. Did factory reset. then flashed back to ICS.
I think it happened because of some cache bull****. Just thought i should share.
Boot Loop Solved
I don't know where to post this so I'm posting it here. I have been scouring the internet for HOURS trying to figure how others got out of boot loop so I could get my phone out of it. I have a samsung galaxy s2 i9100g. I was in the process of unrooting it and while rebooting after installing the stock rom BOOM- boot loop to the samsung logo. I tried everything; battery out, in, pushing all combinations of volume(s)+home+power= nothing worked. Finally after a lot of trial and error one thing worked. I unplugged my USB and took the battery out, then while holding the three buttons I put it back in- and suddenly after hours(of trying to get something to happen) I got the download screen. (My phone wouldn't turn off or go into recovery as other suggested). So I downloaded a different stock rom and tried reinstalling via odin a few times but the problem persisted- still boot loop, still only download mode. Then I tried something different. When in download mode I decided to see what would happen if I pushed the volume down to 'reboot'. To my amazement my phone started up and went past the samsung logo for the first time in FOUR HOURS. It went into recovery mode! Then I factory reset it, and restarted it. So keep at if you think your phone is soft bricked or boot looped. I appreciate everyone else's questions/answers that kept me going while trying to figure out something that worked for me. So I'll break it down into steps.
1)unplug USB, take out battery. Hold down volume (holding down the 'down' volume worked for me), home and power button then quickly slide the battery in(while still holding down till the screen comes up). It may take a few times but the 'download mode' screen should come right up.
2)using odin install the stock ROM for your phone
3)when re installation is complete follow step 1 to get into download mode
4)instead of clicking the volume up for download, click down to restart and recovery mode should come up
5)factory reset your phone and reboot
I genuinely hope this helps someone. Nothing worse than rendering your phone useless.
tried it
I'm having the same issue but your trick didn't help. i'm exasperated.
SirenumDev said:
I'm having the same issue but your trick didn't help. i'm exasperated.
Click to expand...
Click to collapse
Same issue how to fix this?
SirenumDev said:
tried it
I'm having the same issue but your trick didn't help. i'm exasperated.
Click to expand...
Click to collapse
yes, same here...my phone is back to the initial screen 'samsung galaxy sII' , with sign at bottom
Me too...
I think we need to flash stock rom as pointed in those guides:
[INDEX] Samsung Galaxy S2 - ROMs, Kernels, MODs, GUIDES
Samsung Galaxy S2 [INDEX] Helpful Information Welcome, this thread has been created to encompass everything you may need for your device. Please only post in this thread with feedback on how to improve this document. Do not post "Thank you"...
forum.xda-developers.com
The problem is I don't find a ODIN that works... links seem to be broken.
I have even risked to download a couple (4) different odin versions and some windows drivers / stock roms from the wild internet (who knows what crap those executables and files may come with), but I had no success with it...
I don't know how we can find trustable files that are required, or at least verify checksums somewhere to be sure that we don't get any unrequested present instead....
Will create or post in there asking for some help I think...

[Q] Galaxy S2 Black Screen - Possible brick

So here goes, I was planning to upgrade my sister's SGS2 to JB, which was a i9100 version.
So, i followed the steps on the official nightly thread of CM10
http://forum.xda-developers.com/showthread.php?p=29280423
but once i did the first step, i thought just in case so i did it, the whole odin process was successful, odin had reset and everything, but right after the reboot the phone wouldn't boot. It would show the samsung logo first, and then the screen goes completely black. i tried going into both download and recovery mode, but failed, same results as the black screen is just there.
Needed some urgent help, do i need a USB jig to run it back on download mode? Googled many forums and threads about this issue and most require a USB jig or to send it back to Samsung. And i've would consider myself quite experienced on flashing roms (did it many times on my own SGS1), or in this case just upgrading from GB to JB, which pretty much requires flashing the rom from CWM, but took the just-in-case route and ended up with this. Really would appreciate the help asap, as my sister's going out of town back to her university this coming weekends after the holidays.
Thank you for you time, and would really appreciate the help.
Your mistake looks to me that youve tried to install ICS cwm when your on GB.
I think you should have upgraded to ICS before attempting any of that.
I would get a jig,then install 4.0.3 stock rom for your region etc via Odin and start again.
If that dont work,then maybe Jtag.
And next time,you should read the install instructions twice!
Sent from my GT-N7000 using xda premium
theunderling said:
Your mistake looks to me that youve tried to install ICS cwm when your on GB.
I think you should have upgraded to ICS before attempting any of that.
I would get a jig,then install 4.0.3 stock rom for your region etc via Odin and start again.
If that dont work,then maybe Jtag.
And next time,you should read the install instructions twice!
Sent from my GT-N7000 using xda premium
Click to expand...
Click to collapse
thanks man, because previously on my own i9000 i just upgraded to ICS straight away just flashing the zip file from CWM, oh my mistake i guess. Getting a jig asap! Thanks again!
Well hopefully a jig will fire it up and Odin will work.Once your at that point then post back here with your phone details and someone can advise which 4.0.3 firmware to get from sammobile.
In the meantime you can try charging up the battery/removing battery for a while......to see if it still wont enter download mode.
Also there may be a jig near you....theres a thread with peoples locations that have them.
Sent from my GT-N7000 using xda premium

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