Help with boot loop - Galaxy S II Q&A, Help & Troubleshooting

I took a backup of android policy and services jar file before flashing. When I tried to flash the backup after bot loop I'm still stuck. Tried to flash crt off effect on MIUI. Now my device is ruined
It seems the backup applied but it's not working

Falenone said:
I took a backup of android policy and services jar file before flashing. When I tried to flash the backup after bot loop I'm still stuck. Tried to flash crt off effect on MIUI. Now my device is ruined
It seems the backup applied but it's not working
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Click to collapse
Have you wiped cache and dalvik-cache?

Christiaan91 said:
Have you wiped cache and dalvik-cache?
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Click to collapse
Yeah I did. I gave up. Took a full backup of my system to get app settings n stuff back and re-installed ROM.
Moral of the story. Take a FULL freakin' backup before flashing those nasty jar files.

you said device is ruined. is it had bricked?
What exactly is going on? that what i understand you have bootloop even after flashing new rom
i had similar problem before when i had boot stuck after flash new android it was the same
boot stuck new JB boot stuck new JB boot stuck all over again. I flashed ISC and worked out
it was long boot up first time but started up. Maybe you need different rom to start up and later you
can flash that what you like
I know it is confusing but may this help you

Related

[Q] Question bout boot looping

I have system recovery installed and have used it many times. I also have nandroid backups installed......but I'm curious, if I'm boot looping how can I get to the system recovery screen? If my phone's in a constant boot loop can't I only get to the android recovery screen?
I know if I shut my phone down it'll go into System Recovery when it's plugged in, but if I reboot (or constantly reboot) I can't get to it at all, only android recovery and rsd and all that stuff.
xxbgjhn159xx said:
I have system recovery installed and have used it many times. I also have nandroid backups installed......but I'm curious, if I'm boot looping how can I get to the system recovery screen? If my phone's in a constant boot loop can't I only get to the android recovery screen?
I know if I shut my phone down it'll go into System Recovery when it's plugged in, but if I reboot (or constantly reboot) I can't get to it at all, only android recovery and rsd and all that stuff.
Click to expand...
Click to collapse
Pull battery to turn off phone
plug phone into wall
put battery back in
It will go to system recovery UNLESS u previously did a data wipe
I have used this.method many many times when bootlooping and have been able to get into bootstrap and restore nandroid and be all good to go
This is the EXACT reason why I don't mind having to plug my phone in to get recovery
many times I have bootlooped and each time I was able to get.into bootstrap. Of course if u panic and do a data wipe from stock recovery u won't be able to get in as it will wipe the charge_mode_hijack
Previously as in right before, right? Just making sure.
I was thinking that but the last time I bootlooped was when I first rooted and just sbf'ed. (didn't have a backup then...and system revocery possibly)
xxbgjhn159xx said:
Previously as in right before, right? Just making sure.
I was thinking that but the last time I bootlooped was when I first rooted and just sbf'ed. (didn't have a backup then...and system revocery possibly)
Click to expand...
Click to collapse
Bootlooping AFTER SBF is very common
Data wipe from stock recovery fixes that problem.
U wouldn't be able to get into bootstrap after sbf anyways since it takes root away
So what can I do if I DID a data wipe.... I have a nandroid backup, I can see it, but I cant get it to load
shogundogun said:
So what can I do if I DID a data wipe.... I have a nandroid backup, I can see it, but I cant get it to load
Click to expand...
Click to collapse
What did u do b4 u started bootloop?

[Q] Cannot do a system recovery. Can you tell me if i have a new paperweight?

I've had my Samsung Galaxy S Showcase (tracphone) for awhile now and decided to root it. For some dumb reason I flashed a custom ROM onto it.
I had no problems until I downloaded Boot Animation. I selected a custom boot animation, rebooted my phone, and it loops at the animation forever.
I tried to restore using CWM and get the message "MD5 mismatch!"
I tried a factory reset, it errors every step of the way, then says data wipe complete. I reboot and it just keeps looping at the new boot animation.
I tried wiping the cashe, and formatting everything to re-instal the ROM. I select the ROM. it starts to install, resets the phone like it did the first time, but instead of going back to CWM to finish installing, it loads to the boot animation and loops.
I'm very new at this so I don't know what info you would need to help me out if at all possible. and if its impossible at least tell me that I'm royally clucked so I don't spend the rest of my life wondering =)
you can try to flash stock with odin there will be many threads and tutorials about it on the forums
Thanks for the suggestion, but I gave it to my friend who thinks he knows everything and he somehow turned it into a Samsung Mezmerize. Now a question about that. If I try and root it do I put CWM on it as a Samsung Mesmerize? I'm just very confused about everything now, do I treat it and everything I do to it as a Mesmerize?

[Q] Device Reboots when wiping /Data

Hi all,
I'm having a very strange issue with my i9300 today. I left it charging switched off overnight, and when I tried to switch it back on, it hangs on the Samsung bootscreen. I thought it was odd, but solvable. I went into recovery to try and reflash with the backup I have stored on my sdcard, however when it tried to wipe /Data, it rebooted and hung on the bootscreen again.
I initally had CWM 6.0.4.4 recovery installed, however I have tried PhilZ and TWRP to no avail. All three reboot on flashing /Data.
Anyone have any ideas?
For information, I was running 4.4 KitKat Unofficial. If you need any more information (preferably what can be pulled in Recovery/Download), I'll be happy to post it.
I need my phone running back normally ASAP!
Hi just a little confused..When you say all three reboot on flashing data do you mean data from your backup? If so your backup might be corrupt have you tried doing a clean flash with another rom or tried returning to stock?..Also if you don't want to lose data stored on your backup you can try flashing the original rom that you where on when you made the backup then using philz recovery in advanced settings/ restore you can then just restore data from your backup not the whole rom...And try formatting data system and cache but don't forget this will leave you without a rom so have one ready to install on your sd card....Hope all that makes sense
tallman43 said:
Hi just a little confused..When you say all three reboot on flashing data do you mean data from your backup? If so your backup might be corrupt have you tried doing a clean flash with another rom or tried returning to stock?..Also if you don't want to lose data stored on your backup you can try flashing the original rom that you where on when you made the backup then using philz recovery in advanced settings/ restore you can then just restore data from your backup not the whole rom...And try formatting data system and cache but don't forget this will leave you without a rom so have one ready to install on your sd card....Hope all that makes sense
Click to expand...
Click to collapse
Sorry, I should have been clearer. I was trying to Format the /Data partition in recovery in preparation to restore the backup, and every time a Recovery attempts to Format the partition the phone reboots.
I understand now thanks..Mmm..If you can't format data I would probably just flash stock again with Odin get your phone stable, then try to restore your backup...
tallman43 said:
I understand now thanks..Mmm..If you can't format data I would probably just flash stock again with Odin get your phone stable, then try to restore your backup...
Click to expand...
Click to collapse
Bleh. Returning to stock didn't work. It went past the bootscreen to the green android loading bar screen, went part way then rebooted, and stuck on boot again. >.>
Stickied faqs and guides .
But first what does Product Code say in download mode .
Originally Posted by tallman43<br />
I understand now thanks..Mmm..If you can't format data I would probably just flash stock again with Odin get your phone stable, then try to restore your backup...
Click to expand...
Click to collapse
<br />
<br />
Bleh. Returning to stock didn't work. It went past the bootscreen to the green android loading bar screen, went part way then rebooted, and stuck on boot again. >.>
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Click to collapse
You now have to go to recovery and wipe data/factory reset, wipe cache and reboot. It'll most probably work.
Sent from my silky smooth Samsung GALAXY S3
Rayan28 said:
You now have to go to recovery and wipe data/factory reset, wipe cache and reboot. It'll most probably work.
Sent from my silky smooth Samsung GALAXY S3
Click to expand...
Click to collapse
Ah, that would make sense. I'll give that a try now.
Nope. It's still hanging on the Samsung Bootscreen. Sigh.
I think I'm resigned to the fact I'm going to have to replace this. Most likely with a Nexus 5. Oh well. That sets back some of my luxury spending for the month again.
TermyJW said:
I think I'm resigned to the fact I'm going to have to replace this. Most likely with a Nexus 5. Oh well. That sets back some of my luxury spending for the month again.
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Click to collapse
Are you even flashing the correct ROM for your device with the correct model number? If yes, redownload the ROM. It could be a bad download. This time try the latest 4.3 Jelly Bean.

PLease help with softbricked S4

Hello all,
I rooted my s4 a while a go and installed TWRP and today I decided to flash a rom so I downloaded it and flashed it but my phone would no longer boot past the first splash screen apparently the rom files were corrupted so I went back into recovery and wiped the phone then restored my backup and now I am stuck on the boot animation which I left for a good 15 min and I also tried pulling the batteries out and still no luck.
Could you please help me fix this??
joeandro said:
Hello all,
I rooted my s4 a while a go and installed TWRP and today I decided to flash a rom so I downloaded it and flashed it but my phone would no longer boot past the first splash screen apparently the rom files were corrupted so I went back into recovery and wiped the phone then restored my backup and now I am stuck on the boot animation which I left for a good 15 min and I also tried pulling the batteries out and still no luck.
Could you please help me fix this??
Click to expand...
Click to collapse
Reboot to TWRP and wipe your System, Data, Dalvik and Cache... Then Boot to Download mode and flash your phone's proper firmware using Odin.. Make sure you have a backup of your installed Apps and their Data..
Hope this helps you
Sami Kabir said:
Reboot to TWRP and wipe your System, Data, Dalvik and Cache... Then Boot to Download mode and flash your phone's proper firmware using Odin.. Make sure you have a backup of your installed Apps and their Data..
Hope this helps you
Click to expand...
Click to collapse
Thanks alot man!! I flashed stock as you said and everything went back to normal. Good thing I had 3 different types of backup so I didn't lose any data.

[Q] MISTERY: Did an nandroid backup and device won't start

Hello everyone, I hope you can help me on this one since I'm already panicking.:
I have a Galaxy S3 international version, with Android 4.2.2, rooted, Philz recovery.
Wanted to flash a custom ROM, backed up EFS folder and data. Only thing missing was doing a NANDROID backup. Did the NANDROID backup to sdcard and rebooted....and now device won't start; it's stuck on the "SAMSUNG" logo. , WHAT THE HELL DID I WRONG?
I haven't formated anything or handled any system folders or anything. Just went , like in previous android phones, to recovery, made backup and rebooted. Any ideas? many thanks!
rhrs1987 said:
Hello everyone, I hope you can help me on this one since I'm already panicking.:
I have a Galaxy S3 international version, with Android 4.2.2, rooted, Philz recovery.
Wanted to flash a custom ROM, backed up EFS folder and data. Only thing missing was doing a NANDROID backup. Did the NANDROID backup to sdcard and rebooted....and now device won't start; it's stuck on the "SAMSUNG" logo. , WHAT THE HELL DID I WRONG?
I haven't formated anything or handled any system folders or anything. Just went , like in previous android phones, to recovery, made backup and rebooted. Any ideas? many thanks!
Click to expand...
Click to collapse
If its stuck in a bootloop factory reset and wipe cache in recovery.If that does not work install your backup and lastly if that doesn't work flash stock with odin.
Always remember the first thing to try whenever you are stuck in a bootloop is to factory reset wipe cache in recovery.
tallman43 said:
If its stuck in a bootloop factory reset and wipe cache in recovery.If that does not work install your backup and lastly if that doesn't work flash stock with odin.
Always remember the first thing to try whenever you are stuck in a bootloop is to factory reset wipe cache in recovery.
Click to expand...
Click to collapse
I did a full wipe and cache wipe and everything back to normal. What puzzles me is what was it that put the phone in a bootloop?
rhrs1987 said:
I did a full wipe and cache wipe and everything back to normal. What puzzles me is what was it that put the phone in a bootloop?
Click to expand...
Click to collapse
Good question but unfortunately I've not got a definite answer for you.Some times it is files leftover from a flash but no matter how experienced you are at flashing, bootloops are just one of those things you have to get used to.[emoji1]
tallman43 said:
Good question but unfortunately I've not got a definite answer for you.Some times it is files leftover from a flash but no matter how experienced you are at flashing, bootloops are just one of those things you have to get used to.[emoji1]
Click to expand...
Click to collapse
Indeed have to get used to it... many thanks for response tallman43

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