[Q] My Galaxy Mega won't startup - Samsung Galaxy Mega

Hey mates. I've updated my phone to the Russian KitKat firmware today. First it opened perfectly fine. Then I wanted to switch off to do the wipe cache and wipe data thing. I've pressed the combination volume up + home + power and the screen lighten up but after approximately 5 seconds, the phone switched off. Then I pressed off and it stucked on the Samsung screen. I couldn't switch it off and pulled out the battery. Tried to go into Odin mode, but same thing happened. Then I recharged it to full, but still the same. I can't format the phone, nor open it. Can anybody help me? Thank you very much.

Phone switching off even in download mode?
Wysłane z mojego GT-I9205 przy użyciu Tapatalka

cortex47 said:
Hey mates. I've updated my phone to the Russian KitKat firmware today. First it opened perfectly fine. Then I wanted to switch off to do the wipe cache and wipe data thing. I've pressed the combination volume up + home + power and the screen lighten up but after approximately 5 seconds, the phone switched off. Then I pressed off and it stucked on the Samsung screen. I couldn't switch it off and pulled out the battery. Tried to go into Odin mode, but same thing happened. Then I recharged it to full, but still the same. I can't format the phone, nor open it. Can anybody help me? Thank you very much.
Click to expand...
Click to collapse
Hey mate, did you ever fix your problem?

cortex47 said:
Hey mates. I've updated my phone to the Russian KitKat firmware today. First it opened perfectly fine. Then I wanted to switch off to do the wipe cache and wipe data thing. I've pressed the combination volume up + home + power and the screen lighten up but after approximately 5 seconds, the phone switched off. Then I pressed off and it stucked on the Samsung screen. I couldn't switch it off and pulled out the battery. Tried to go into Odin mode, but same thing happened. Then I recharged it to full, but still the same. I can't format the phone, nor open it. Can anybody help me? Thank you very much.
Click to expand...
Click to collapse
You will have to re-install the rom as by wiping the data that is important to the running of the rom, you wipe the Cache and the Dalvik cache only, if you can get to the download mode (odin mode) then reflash the rom, try that same button combo with the phone powered off first and see if you can get into the download mode.

Update: I have applied the USB Jig solution. The phone got into Odin Mode, but it didn't show up on the screen. The screen was black (shiny black, I knew it was on), but Odin recognized the phone. Then I reflashed the ROM, the phone restarted but it stuck on the SAMSUNG screen, however Odin said PASS. So I have gone back to square one. I still can't use the three buttons to get into Odin or Recovery Modes. I only can use USB Jig but this happens. I can't wipe data or cache. And after this operation, now my phone charges, but it doesn't show up on the screen and the notification lights don't work like it used to. What should I do know? It's clearly a software problem, but I have no idea about what to do next.

BoiBundy said:
Hey mate, did you ever fix your problem?
Click to expand...
Click to collapse
nope

Related

Won't turn on, screen is blinking

So, I wanted to update the Rom, so tried to go into recovery mode. Pushed the volume down button instead of up, so got into download mode. Pushed the volume down button to cancel. Then pushed the right combination, but nothing past the Galaxy S2 logo with the warning triangle happened.
Tried to reboot a couple of times, but now the phone is completely dead.
Everytime I turn it on the Galaxy S2 logo appear, and when it dissappear the phone seems to be dead. However if I look closely, the screen is not turned off, it it just black (but turned on), and every 5 seconds or so I can see it "blinking", but it blinks "black" if you could say that, you won't notice it if you don't look careful, or you are in a dark room.
If you triple click the home button you normally "invert" the colours on the screen, and this also works in this case. Instead of it flashing with an almost unnoticable black, it is now white and every 5 seconds the screen turns off very briefly, but then the screen is white again.
To get it to stop doing this I need to remove battery. If I push and hold the power button the phone just restarts with the galaxy s2 logo, and then does the same again.
When I connect the phone to a charger or to a PC (while it's powered down), the battery logo appears for a couple of seconds, and then it enters this "blinking" screen thing again.
When connected to a PC it does not appear as a drive - however it seems like windows detects it, it installs the GT-9100 drivers. Samsung Kies can't connect, it just keeps trying to connect forever, without coming with an error, but it's not connecting.
Hard reset is not working in any of the described ways, whatever I do, if its to get it into recovery mode, download mode, or just trying to turn the damn phone on, it just do the blinking thing.
Is this some sort of a boot loop from hell!!?
sounds strange, can you still get it in download mode without issues?
If you can i would advice to flash back to stock(!!)
or you could try to flash a cf-root to see if thats gets you into recovery format system, data, cache, dalvik and flash the new rom.
but im not sure if that would work, a clean install from stock would be better i believe,
as to why it went this way i have no idea!
Good luck!
If you can get in download mode, flash a stock rom with odin and that should do the trick
yes!
Well, that was odd, thought I had tried that several times, but yes now at least I can get it into download.
Now I used ODIN to flash a file (CF-Root-SGS2_XX_XEO_LPQ-v5.3-CWM5.tar) that I had laying on my PC from back when I was originally rooting my phone. ODIN gave me a "Pass" reply and I got the phone into a bootloader. I quickly wiped everything I could, and at the moment I'm seeing if I can boot the phone normally.
Thanks!!
Well my rom is f***** it won't boot, but atleast I can get it into recovery mode.
Have just installed cyanogen 9 stable + gapps, it is now booting up!
Luckily I backed my phone up with Titanium backup just a couple of hours ago!!!
it's working!
Well that saved my ass. I was so close to throwing my phone out of the window and going online to order a S3...
Now I'm setting up my phone - nice, wanted to try Cyanogen 9 anyway.
Cool.. Always be patient.... Rather than thinking of purchasin a new phone when these kind of situations occur. Keep a usb jig with you
Sent from my GT-I9100G using xda premium

[Q] Sgs3 stuck at boot screen

Hi all,
I would like to ask advice from you all regarding my sgs3 situation below
My sgs3 is a stock one, never root or whatsoever before.
This evening, there is an update from samsung application and i update my sgs3. I did not restart them as normally it will restart itself before once completed. After few hours, i found out my sgs 3 turn to boot screen black background with white font sgs3. I remove battery and put back, then start phone again, but it still shows boot screen.
Then later, i try removing battery again, then put back and connect to the charger at home, it shows the charging indication, but never turn to green that i do not what happened and my sgs3 still cannot boot. Then, i try to do restore factory setting by push simultaneously power, volume up and home button. But, the boot logo will appear, gone, and appear again and again.
I do not know what happened to my sgs3. Any idea?
turn off phone
press home + volume up + power
then chose wipe data / factory reset and reboot
XeactorZ said:
turn off phone
press home + volume up + power
then chose wipe data / factory reset and reboot
Click to expand...
Click to collapse
Unfortunately, i cannot hard reset
hahere said:
Unfortunately, i cannot hard reset
Click to expand...
Click to collapse
Try wiping cache partition and dalvic cache
That's "funny"!
I have exactly the same problem, just as you describe.
Can't do anything. No indication that it charges what so ever.
Dead as a Dodo!!
At the moment I'm downloading the last official firmware and will try to flash that one.
If it doesn't work, I will have to leave the phone to a service center.
I will let you know how it worked out!
Don't loose the faith!!
// Ohamn
No luck with re-flashing....
It did not work for me i'm afraid.
Sending it in for repairs on Monday!
// Ohamn
Ohamn said:
It did not work for me i'm afraid.
Sending it in for repairs on Monday!
// Ohamn
Click to expand...
Click to collapse
Noted. Will send to service centre today
The same thing happened to me just now. I was running Task650's AOKP Build 1/1/2013 totally stock (stock AOKP kernel, no OC or UV), I had to Odin back to UCALG1, and even then, the phone would get stuck in the "Samsung Galaxy SIII" splash screen. I had to reboot to stock recovery, Wipe Data/Factory Reset and Wipe Cache for the phone to boot up.
Just wanted to put this here, maybe it will be of help to someone.
kafepuya said:
The same thing happened to me just now. I was running Task650's AOKP Build 1/1/2013 totally stock (stock AOKP kernel, no OC or UV), I had to Odin back to UCALG1, and even then, the phone would get stuck in the "Samsung Galaxy SIII" splash screen. I had to reboot to stock recovery, Wipe Data/Factory Reset and Wipe Cache for the phone to boot up.
Just wanted to put this here, maybe it will be of help to someone.
Click to expand...
Click to collapse
I hope that you are aware that you also suffer from SDS!? (Sudden Death Syndrome)
http://forum.xda-developers.com/showthread.php?t=1993044
Just leave your phone to a certified Samsung service center and they will change the main board for you (for free).
Hopefully I will get mine back sometime next week!! :fingers-crossed:
All the best
// Ohamn

S3 stuck in safe mode

My galaxy s3 has been stuck in safe mode for two days now which is frustrating as only the stock apps can be used. I have tried different solutions, which I list below.
How it happened.
I was initially on 4.1.1 and when I woke up I saw a notification to upgrade to 4.1.2, after that it did its thing and rebooted into safe mode.
solutions tried
1. Reboot - didnt work
2. take out battery for few minutes and reboot - didnt work
3. boot into stock recovery to try to factory reset phone, Volume button not working so cant select other option apart from reboot. - didnt work
4. Download stock rom from samfirmware and flash using odin - didnt work
5. Flash CWM using odin, didnt factory reset and flashed custom rom (omega). It boots into safe mode as well
6. Downloaded stock ics firmware, flashed using odin . it boots but stuck on samsung logo.
I dont know what else to do. Although am thinking downgrade the bootloader to one meant for ICS the try to flash to ICS stock rom again, would try this later in the day.
p.s Ignore more signature I own a galaxy s3 as well.
Switch off your phone..
Press the power button..
Once you see the logo screen press and hold the left capacitive button..
Sent from my GT-I9300 using Tapatalk 2
zoot1 said:
Switch off your phone..
Press the power button..
Once you see the logo screen press and hold the left capacitive button..
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
I already did that....still stuck in safe boot.
alphaola said:
I already did that....still stuck in safe boot.
Click to expand...
Click to collapse
I think its:
Switch off your phone..
Press the back or cancel(left) button..
Once you see the logo screen press and hold the left capacitive button..
Hey,
I'm having the exact same issue with my note 2. Wondering if you found a solution.
Anybody can help with this? I am having the same issue
use search, asked and answered too many times
I did search..
I tried everything.
full wipe, cache, dalvik, factory reset and it keeps saying safe mode.
so please help
EDIT:
i just installed slim rom, and it keeps saying safe mode...
s3 safe mode
one way work for me..
1-turn off the phone
2- remove battery
3- short + and - in battery connector for few minute
4-insert battery and turn it on
alphaola said:
My galaxy s3 has been stuck in safe mode for two days now which is frustrating as only the stock apps can be used. I have tried different solutions, which I list below.
How it happened.
I was initially on 4.1.1 and when I woke up I saw a notification to upgrade to 4.1.2, after that it did its thing and rebooted into safe mode.
solutions tried
1. Reboot - didnt work
2. take out battery for few minutes and reboot - didnt work
3. boot into stock recovery to try to factory reset phone, Volume button not working so cant select other option apart from reboot. - didnt work
4. Download stock rom from samfirmware and flash using odin - didnt work
5. Flash CWM using odin, didnt factory reset and flashed custom rom (omega). It boots into safe mode as well
6. Downloaded stock ics firmware, flashed using odin . it boots but stuck on samsung logo.
I dont know what else to do. Although am thinking downgrade the bootloader to one meant for ICS the try to flash to ICS stock rom again, would try this later in the day.
p.s Ignore more signature I own a galaxy s3 as well.
Click to expand...
Click to collapse
It's Volume button work fine??
The problem has nothing to do with reboot. As you can see have already mentioned reboot as part of the solutions I tried.
My device is fine with ICS firmwares but has issues with Jellybean (stock and modded rom including CM10.1). Currently am running ICS on it as thats the only way the phone works properly.
I installed 4.0.4 (XAALF2) via Odin, but it got stuck on samsung logo. Then turned it off and flashed CWM to do factory reset as the volume key doesnt work on stock recovery. After that everything worked fine. I was able to update to the latest 4.0.4 via OTA.
The problem is hardware, so you might want to contact Samsung.
I found some information about "Safe Mode".
It seems that every Android phone has a safemode.
"On Samsung’s devices, almost all users will be able to access Safe Mode with by pressing and holding the menu button during start up. If it’s a capacitive menu key, make sure to release and press again each time the LED under the key comes back on. You don’t want to miss the catch for Safe Mode because the button released itself."
Here is the link where i get the information: http://www.tested.com/tech/android/...ds-safe-mode-to-save-a-phone-from-boot-loops/
You can try it this way, maybe it will work.
Good luck.
Ic3y83 said:
I found some information about "Safe Mode".
It seems that every Android phone has a safemode.
"On Samsung’s devices, almost all users will be able to access Safe Mode with by pressing and holding the menu button during start up. If it’s a capacitive menu key, make sure to release and press again each time the LED under the key comes back on. You don’t want to miss the catch for Safe Mode because the button released itself."
Here is the link where i get the information: http://www.tested.com/tech/android/...ds-safe-mode-to-save-a-phone-from-boot-loops/
You can try it this way, maybe it will work.
Good luck.
Click to expand...
Click to collapse
I think u missing the point, the phone works fine with 4.0.4 firrmwares, it only get stuck in safe mode when updated to Jellybean 4.1.1 and above. No amount of key combination, factory reset or even custom rom was able to fix the safe boot.
The best option is to send it back to samsung, its definitely hardware issue.
alphaola said:
I think u missing the point, the phone works fine with 4.0.4 firrmwares, it only get stuck in safe mode when updated to Jellybean 4.1.1 and above. No amount of key combination, factory reset or even custom rom was able to fix the safe boot.
The best option is to send it back to samsung, its definitely hardware issue.
Click to expand...
Click to collapse
I'am sorry for misunderstanding u. I think you could be right. Maybe it is a hardware issue.
Don't forget to "unroot" and reset the "flash counters".
Greetz.
alphaola said:
My galaxy s3 has been stuck in safe mode for two days now which is frustrating as only the stock apps can be used. I have tried different solutions, which I list below.
How it happened.
I was initially on 4.1.1 and when I woke up I saw a notification to upgrade to 4.1.2, after that it did its thing and rebooted into safe mode.
solutions tried
1. Reboot - didnt work
2. take out battery for few minutes and reboot - didnt work
3. boot into stock recovery to try to factory reset phone, Volume button not working so cant select other option apart from reboot. - didnt work
4. Download stock rom from samfirmware and flash using odin - didnt work
5. Flash CWM using odin, didnt factory reset and flashed custom rom (omega). It boots into safe mode as well
6. Downloaded stock ics firmware, flashed using odin . it boots but stuck on samsung logo.
I dont know what else to do. Although am thinking downgrade the bootloader to one meant for ICS the try to flash to ICS stock rom again, would try this later in the day.
p.s Ignore more signature I own a galaxy s3 as well.
Click to expand...
Click to collapse
i did a reboot and it removed the safe mode :good:
My personal experience, i overclocked my SGS3 with Boeffla kernel on ARHD then i got freeze screen and phone reebot into safe mode, I entered into recovery and reebot then everithing was fine again.
Safe mode occurs when something in the phone is not working properly , could be hardware or software, however, stuck on it is not a good signal.
my advice is to send the device to service.
Do not forget to reset flash counter via Triangle Away and flash stock factory firmware.
Good Luck! :good:
note 3 stuck in save mode window
This problem occurs after changing to a new simcard not already installed before in the device.
1. Power off the galaxy note 3.
2. Remove the micro simcard from the slot by sliding.
3. Power on the device without the simcard.
4. It will run in a normal mode, if so, this will actually diagnosed that there is a simcard defined by the administrator as default. In the security setting in setting menu and for protection against theft, the original simcard must be insert to unlock this choice of detection of any change in new simcard. New simcard is defined as strange and theft suspected.
I hope this make you reach some solution for your trouble.
S3 SAFE MODE issue
Plz help....
On my s3 i9300, its always on safe mode. Tried FACTORY DATA RESET. Still on safe mode. Other issue is that on power on and off, back LED turns on for few seconds. Also volume down not working. These issues started after s3 went on safe mode. Any sloution??
shoeb_v said:
Plz help....
On my s3 i9300, its always on safe mode. Tried FACTORY DATA RESET. Still on safe mode. Other issue is that on power on and off, back LED turns on for few seconds. Also volume down not working. These issues started after s3 went on safe mode. Any sloution??
Click to expand...
Click to collapse
Same issue here, it is hardware
I went through a lot of threads and not one had a solution. So I will post here what worked for me.
Customer came to my store with Galaxy S3 (SPH-L710T) that was stuck in safe mode. I tried everything on this thread, nothing worked. Luckily I had a older Galaxy S3 (SPH-L710) with a broken screen, so I switched over the motherboard from the customer's phone to the old one - I did connect the customer's original LCD to the motherboard since my old phone had its LCD broken. Powered it on, no safe mode.
So at this point I just transferred the volume buttons flex cable to the customer's phone. Powered it on, no safe mode again.
Hope it helps someone!

[Q] Sony Xperia U not working , charging forever.

last month i changed my ROM (CM 10.1 i think) on sony xperia u everything was going fine until no one could call me (Number Busy) but i could call everyone then i tried to look in settings but nothing,then returned to factory default ROM and from then nothing , phone seems like dead but when i charge it charging indicator (red little circle) turns on,i tried trick with holding battery 10mins out and then charging but again failed.
I BOUGHT THIS PHONE USED BUT, EVERYTHING WAS FINE ULTIL FACTORY RESETING
(EXCEPT PROBLEM WITH CALLING)
duxishere said:
last month i changed my ROM (CM 10.1 i think) on sony xperia u everything was going fine until no one could call me (Number Busy) but i could call everyone then i tried to look in settings but nothing,then returned to factory default ROM and from then nothing , phone seems like dead but when i charge it charging indicator (red little circle) turns on,i tried trick with holding battery 10mins out and then charging but again failed.
I BOUGHT THIS PHONE USED BUT, EVERYTHING WAS FINE ULTIL FACTORY RESETING
(EXCEPT PROBLEM WITH CALLING)
Click to expand...
Click to collapse
Factory data reset is not factory default ROM, what exactly did you do, factory data reset or have you flashed stock ROM?
Can you enter flash or fastboot mode? Remove the battery again before you try both, and open flashtool window to see if connected in flash/fastboot mode.
ChikeD said:
Factory data reset is not factory default ROM, what exactly did you do, factory data reset or have you flashed stock ROM?
Can you enter flash or fastboot mode? Remove the battery again before you try both, and open flashtool window to see if connected in flash/fastboot mode.
Click to expand...
Click to collapse
I Flashed stock ROM
Well i was pressing power button and flash mode and green light apeared (AFTER A WHILE) but trying to turn on phone with power button doesn't work.
duxishere said:
I Flashed stock ROM
Well i was pressing power button and flash mode and green light apeared (AFTER A WHILE) but trying to turn on phone with power button doesn't work.
Click to expand...
Click to collapse
Doesn't work how?
Doesn't vubrate or stuck on logo or stuck before logo?
Have you used PC Companion with this phone before?
ChikeD said:
Doesn't work how?
Doesn't vubrate or stuck on logo or stuck before logo?
Have you used PC Companion with this phone before?
Click to expand...
Click to collapse
Nothing. Just power button is not working, no logo or else , maybe something broke inside phone?
duxishere said:
Nothing. Just power button is not working, no logo or else , maybe something broke inside phone?
Click to expand...
Click to collapse
If you can enter flash mode, mMaybe you can relock bootloader and try yo repair with PCC or SUS.
Open flashtool window and connect in flash mode, see it stays in flash mode for about 45 seconds.
ChikeD said:
If you can enter flash mode, mMaybe you can relock bootloader and try yo repair with PCC or SUS.
Open flashtool window and connect in flash mode, see it stays in flash mode for about 45 seconds.
Click to expand...
Click to collapse
Well flash / fast boot mode not working, i tried simulated battery pull Power + Vol+/Vol- or Vol+ & Vol- and nothing,now when i press power button,
battery charging indicator start ticking for like 5-10 times... and then nothing...
duxishere said:
Well flash / fast boot mode not working, i tried simulated battery pull Power + Vol+/Vol- or Vol+ & Vol- and nothing,now when i press power button,
battery charging indicator start ticking for like 3-5 times... and then nothing...
Click to expand...
Click to collapse
Just pull out the battery for a minute, and then try flash mode first, nothing else.
Matbe the battery need to be charged.
Nevermind, i send it to service...
Ok it came from service guy i paid 4,2€ for it and it works, but what in the world he done that i couldn't ?
And what is best Cyanogenmod ROM for Sony Xperia U?

[Q] [HELP!] GT - I9100 bricked

Well I was undervolting and underclocking my i9100 for a few months and it would suffer from freezes and stuff like that nothing much as I would be able to perform a hard reset and reboot with my phone completely working everytime that happens. However today, I just locked my phone after taking a picture and I could not unlock it after that. I pressed the power button and home button but the screen would not turn on. So i just took out the battery and tried booting the phone. It was stuck in a bootloop where the boot animation would just keep on playing. So i force shutdown it and booted it into recovery. I had CWM 6.0.4.6 installed and when i booted into recovery, it gave me the message it cannot mount something and cannot load last kmsg and blah. I took no notice and tried to format cache. During this point, the recovery hanged and i force shutdown my phone again. After which, I could never turn on my phone again. No splash screen no nothing. I think it is bricked. And yea btw my usb port is not working anymore and it can only be used for charging. And i was running cm11 infected. Can you all please help me thanks!
so no recovery nor download mode?
Sadly, no
TheImpossibleEnemy said:
so no recovery nor download mode?
Click to expand...
Click to collapse
Yep i cannot even boot into anything no splash screen no nothing pressed the power button for like so long i even removed the battery for 2 hours and popped it back in not working
Try this - take out battery,then press and hold volume down+home+power and put battery back without releasing buttons.This may get you into a download mode where you can flash stock jb via odin.

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