[Q] Infinite bootloop with stock kernel - Galaxy S II Q&A, Help & Troubleshooting

Hi guyz,
my SGSII is stuck in an infinite bootloop with the original stock kernel without i did anything strange (it switched-off and then never restarted...).
I tryed to wipe cache and it didn't solve the problem.
It seems i can't start it in download mode....
Is there any way to solve the problem without flashing anything?!
Is there any way to pull down my personal data with adb?!
Thanks in advance.
Best regards,
Marco

Every advice is appreciated.
Thanks!

ErVito said:
Hi guyz,
my SGSII is stuck in an infinite bootloop with the original stock kernel without i did anything strange (it switched-off and then never restarted...).
I tryed to wipe cache and it didn't solve the problem.
It seems i can't start it in download mode....
Is there any way to solve the problem without flashing anything?!
Is there any way to pull down my personal data with adb?!
Thanks in advance.
Best regards,
Marco
Click to expand...
Click to collapse
Which ROM are you using? Also, re check whether the Download mode is functional or not, because that issue is strange, really strange.
If the download mode is working, then you can easily restore your phone to factory settings and start fresh, but I'm afraid that you'll lose all your data.

You're right, i pushed the buttons in the wrong sequence and the phone didn't boot in download mode.
However, now the phone can boot in download mode and i tried to make windows recognize it because adb didn't show the device attached.
The official Samsung drivers are installed and i've already tried to use the drivers offered by google with adt and now i've the adb interface in the device manager but adb still doesn't show the phone attached!
Could be the fact i can't enable the phone in debug mode the reason why the device isn't shown?
How can be debugged a phone with adb if it's bricked and/or stuck?!!!
Thanks in advance.
Regards,
Marco

Ahh, to answer to your question, i didn't use any modified rom, the software installed on the phone is the original by Samsung.
Thanks again.
Regards,
Marco

Related

Bricked? LG L9 P760

Hi.
In first, sorry for my english.
I have trouble, Previous i have stock v20c, I want to install CM 10.1.1, and first i flashed kernel boot.img from zip package with CM. Previously i had se xperia neo v, so i did it in habbit. Now i have bootloop with LG logo and i have no idea to solve it. Anyone can help me? I dont have CWM recovery in this kernel. If I send phone to LG service, they repair my phone?
kuba295 said:
Hi.
In first, sorry for my english.
I have trouble, Previous i have stock v20c, I want to install CM 10.1.1, and first i flashed kernel boot.img from zip package with CM. Previously i had se xperia neo v, so i did it in habbit. Now i have bootloop with LG logo and i have no idea to solve it. Anyone can help me? I dont have CWM recovery in this kernel. If I send phone to LG service, they repair my phone?
Click to expand...
Click to collapse
You don't need to send it to LG service. You just softbricked your phone. Try this: http://forum.xda-developers.com/showpost.php?p=40483954&postcount=2
anirion said:
You don't need to send it to LG service. You just softbricked your phone. Try this: http://forum.xda-developers.com/showpost.php?p=40483954&postcount=2
Click to expand...
Click to collapse
hard reset not work, force switch off not work. i plug in phone without battery and hold for 3 seconds volup+power and my phone connect and disconect in loop i dont see S/W Upgrade. Anyone can help me? Maybe, the problem is not stock kernel? But anyway i dont run s/w upradge by this method
@edit: I solve it, i insert battery too fast. But anyway i have CM10.1.1, my phone works and I'm happy. BIG THANKS TO YOU @anirion!!!!
i am also facing the same problem
kuba295 said:
hard reset not work, force switch off not work. i plug in phone without battery and hold for 3 seconds volup+power and my phone connect and disconect in loop i dont see S/W Upgrade. Anyone can help me? Maybe, the problem is not stock kernel? But anyway i dont run s/w upradge by this method
@edit: I solve it, i insert battery too fast. But anyway i have CM10.1.1, my phone works and I'm happy. BIG THANKS TO YOU @anirion!!!!
Click to expand...
Click to collapse
I am also facing the same problem nothing is working and when i plug my phone to computer without battery , windows detects and it goes away in a loop. how can i get passed this...how did you do this?? please help !!! my phone is unrooted before it got softbricket. I am a noob to all these topics.
nikscrysis29 said:
I am also facing the same problem nothing is working and when i plug my phone to computer without battery , windows detects and it goes away in a loop. how can i get passed this...how did you do this?? please help !!! my phone is unrooted before it got softbricket. I am a noob to all these topics.
Click to expand...
Click to collapse
There're some information about fastboot in http://forum.xda-developers.com/showthread.php?t=2221102, in 0) Preparations:-

[Q] [HELP] Recovery mode does not work.

Hello people! First, sorry for my english. I'm having a little problem. The phone is off in less than 1 minute. I think that the operating system got a virus. The same is with the screen locked and I can not remember the password. I've tried resetting the recovery mode but not funciounou. I tried to install the original rom, did not work. What could be happening that the recovery mode is not working? The mobile phone is the Samsung GT-S5302B. Could anyone help me? Thank you.
Can You Do a Hard Reset?

[Q] Need help Bad ROM!

Okay so I installed this custom ROM on my P796 and i didn't like it so i tried to reinstall the custom jelly ROM that I downloaded from this website. I made sure it was the v20h version and everything. When it restarted it asked what language but the problem was wherever I clicked it would just click somewhere else on the screen so I cant even click english and enter set up. I can still access the phone with lg mobile support tool and other tools with my PC but nothing is working please help!
~Edit~ I can now enter recovery mode but my sscreen calibration is still messed up! Any help?

Phone stuck on encrypting after factory reset in twrp

Hey! So I just decided to try and get rid of that pesky encryption on the /data partition by doing a standard factory wipe in TWRP.
After a reboot the phone is now stuck on encryption in progress with the error:
Code:
Warning : Current version is not avaiable for user. Can't find matched cust for NT-code mcc/mnc[FFFFFF],subset[11]
I've checked in a couple of threads including This one but when I try to reboot into recovery it doesn't work. I've tried holding power and volume down when the phone is powered off but it just keeps rebooting to the encrypting screen.
I had Magisk-v6 and xposed installed on the phone before doing a factory wipe if that would affect.
Thanks in advance!
This happened to me, burn it
http://downloads.codefi.re/autoprime/LG/LG_G5/H850/H85010E/LG-H85010E-Flashable.COMPLETE.zip
But how am I supposed to do that?
Do I use external software or do I need TWRP for it?
Nevermind, I fixed it!
It appeared my main problem was getting into TWRP, now that I managed to get into TWRP the guide I provided in the main post worked like a charm!
Thanks either way for the answer.
How can i solve the problem. I have flashed a firmware and now the phone stats, but it will display ENCRYPTION and a button for restart phone. flashing no-verity-opt-encrypt.zip v 2.1 will not help. PLEAS help me !!
did you find the solution Losti2000? I am having the same problem My phone is an LG G5 tmobile H830.
Losti2000 said:
How can i solve the problem. I have flashed a firmware and now the phone stats, but it will display ENCRYPTION and a button for restart phone. flashing no-verity-opt-encrypt.zip v 2.1 will not help. PLEAS help me !!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=69986363&postcount=41

Help needed recovering data from boot-looping phone

Hi guys,
Got a tricky one here - a friends just brought me a Galaxy S2 thats stuck in a boot loop but tells me he's got years of photos on it's internal memory and not backed up
So far I've managed to get it into download/recovery mode, tried a cache reset and got nowhere now I'm a bit stuck. Do I:
Do a factory reset - I'm told it doesn't delete the users data, but some people say it does and I can't risk it until I know for sure.
Flash a stock ROM - Apparently Odin (Which I have got running and can see the phone) can write a ROM without losing data - but again I'm weary of doing so without a definite answer.
Something else? - Possible to write just a custom recovery and mount internal to USB or something? Tried TWRP but it fails in Odin.
Any help is greatly appreciated guys, from both of us!
Can you access the phone through ADB while in recovery mode? (Maybe you'll first have to install a custom recovery with Odin.) Then you can just use ADB to pull any files you want off the phone.

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