[Q] SPRINT GALAXY SII- factory reset and still having issues - Android Q&A, Help & Troubleshooting

I have a Sprint Galaxy S2 and I am out of the country without access to a store. I recently was unable to get my phone past the starting screen. YES IM AWARE OF THE ROUTE AS TO HOW TO DO A HARD RESET! First I took out the SD drive and did the proper way to get to the RESTORE FACTORY SETTINGS (and lets be clear, the factory screen did come up!). However, this is where I screwed up, I accidentally cleared the "cache" one I believe, not the "restore factory". It then took me back to that screen and I was able to do the normal factory wipe. It never really restarted like it did with the numerous other posts on how its "suppose to reboot itself". I now turn it on and it just goes back to the Galaxy start up screen again, only now, I cannot even access the factory menu. Can someone please give me a step by step process on what to do? I have seen the word ODIN everywhere and I have no idea what that is...

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[Q] Need help getting out of boot loop

GT-I9300 (international version) (FCC A3LGTI9300A)
Never rooted, just applied official OTA patches when delivered.
Been experiencing random reboots now and then (more rarely than once a week) Some of them seems to have been "softer" than others because I did not need to enter PIN when it started up again.
Then a couple of hours ago, when waking it up (screen turned on but froze before displaying unlock function) it rebooted again and got stuck in boot loop.
When I power it on the first screen (Samsung Galaxy SIII GT-I9300) shows and then it goes to the "fun part"
The blue/purple "Circle"
SAMSUNG logo
blueish glow behind SAMSUNG logo (two short vibrations near the end)
black screen
repeat ad infinitum
Managed to get into recovery to clear cache but that did not help.
I guess factory reset is the next step to try but if there is any chance of anything else working I would prefer not to have to reset.
try reflashing the ROM you had through Odin. And don't ask how, there are tons of guides
Thanks for your quick reply!
Would it have to be the exact same version, or is any 4.1.2 for my model "close enough" to hopefully avoid factory reset?
Every ROM should do the job. But when it works you should save the data you want to keep and do a reset afterwards and flash the ROM again. Just to make sure no issues come up. What you could also try is to hold down the Volume Down button while rebooting and look if you can boot into safe mode. There you could save every neccessary data and do a reset/wipe afterwards.
Try to flash modem depending on your region, it worked for me
Sent from my GT-I9300 using xda app-developers app
Thanks for your tips, unfortunately no luck so far, one more rom file to try before resorting to factory reset...
Update, unfortunately still no luck. For a little while (after going from 4.1.1 to 4.1.2) I was feeling optimistic as the "updating apps" screen appeared when booting, but when it was finished it went back to bootlooping. I am now considering rooting/custom recovery to try to mount partitions so I at least can recover data from internal sdcard-partition.
Didn't want to risk triggering flashcounter if I still would not be able to boot and run TA.
Ended up doing factory reset from stock recovery and phone booted up just fine, guess there was something bad in my data or apps.

[Solved] Factory Reset, now boots to language select and then black screen

I have the GT-S7560M through Solo (Bell) and I rooted it shortly after purchase last year. I've been happy with the phone and for the last few weeks an upgrade notice has been appearing but would fail when applied. Some searching suggested the root was interfering. At first I started to look into un-rooting the phone, but then thought that a factory reset would be the simplest, least-risky solution. I had done a factory reset on my last Galaxy phone without a problem so it seemed like a safe choice. I backed up the contact info, etc with Kies (I don't use many apps so I didn't go all out ie Titanium Backup) and removed my SD card.
Now the phone boots to screen asking me to pick a language and press Start. Then it moves on to a black screen with the info bar at the top (clock, cell strength, data xfer) and nothing else. It is auto-rotating. The phone does react to touches with the buttons lighting up, but I can't get anywhere. Kies can see the phone, the phone number, the firmware version and all that. It reports Internal Memory as 84.83MB used of 1.58GB. I can navigate through the phone using Windows Explorer. I did a Restore with Kies but it doesn't seem to have had any relevant effect.
I am able to boot into CWM Recovery. I don't remember doing a back-up with it, and when I ask it to restore from either the SD card or the interal SD it says it can't mount.
At this point I would start thinking about taking the phone back to the store, but a flash counter appears during start-up and I'd rather they didn't see that for obvious reasons.
When I google I just get people who have bricked their phones. I just want my phone to work again. I'm not worried about modifying it further to achieve that.
Yoqui said:
I have the GT-S7560M through Solo (Bell) and I rooted it shortly after purchase last year. I've been happy with the phone and for the last few weeks an upgrade notice has been appearing but would fail when applied. Some searching suggested the root was interfering. At first I started to look into un-rooting the phone, but then thought that a factory reset would be the simplest, least-risky solution. I had done a factory reset on my last Galaxy phone without a problem so it seemed like a safe choice. I backed up the contact info, etc with Kies (I don't use many apps so I didn't go all out ie Titanium Backup) and removed my SD card.
Now the phone boots to screen asking me to pick a language and press Start. Then it moves on to a black screen with the info bar at the top (clock, cell strength, data xfer) and nothing else. It is auto-rotating. The phone does react to touches with the buttons lighting up, but I can't get anywhere. Kies can see the phone, the phone number, the firmware version and all that. It reports Internal Memory as 84.83MB used of 1.58GB. I can navigate through the phone using Windows Explorer. I did a Restore with Kies but it doesn't seem to have had any relevant effect.
I am able to boot into CWM Recovery. I don't remember doing a back-up with it, and when I ask it to restore from either the SD card or the interal SD it says it can't mount.
At this point I would start thinking about taking the phone back to the store, but a flash counter appears during start-up and I'd rather they didn't see that for obvious reasons.
When I google I just get people who have bricked their phones. I just want my phone to work again. I'm not worried about modifying it further to achieve that.
Click to expand...
Click to collapse
You have posted in wrong section
BTW your solution is just flash stock Rom via ODIN , your problem will get solved.
BTW your solution is just flash stock Rom via ODIN , your problem will get solved.
Click to expand...
Click to collapse
I've just finished doing that, and it appears to have worked.
For anyone else with a similar problem who finds this thread:
- Go to the FAQ here: http://forum.xda-developers.com/showthread.php?p=45767157#post45767157
- Download Daver18qc's root kit at the link provided (you'll have to scroll down to the second post). You want this to get Odin; don't worry about the zip's other contents.
- Go here: http://www.sammobile.com/ and register. It's free and all it wants is an e-mail and your country.
- Go here: http://www.sammobile.com/firmwares/ and type s7560m in the search box. The list will automatically update. I'm a Solo customer and chose 'Canada (Bell Mobile)'. When I first tried this in Firefox I would get a screen telling me I wasn't logged in. I tried it in IE (which I never use and so is 'clean') and the download went through.
- Go back to the FAQ http://forum.xda-developers.com/showthread.php?p=45767157#post45767157 and scroll down to 'Short Tutorials' and 'How to Flash with Odin:'.
- One thing it leaves out is that when you boot into Download Mode, you will first get a warning screen that asks you to either press Volume Up to continue or Volume Down to abort and reboot. Not a big deal but it caught me off guard. Odin will not detect the phone until you get past this screen.
- Continue with the Tutorial. After it is done you will have to setup the phone again. But at least it's working now.

lost efs folder... already

Hey guys, first post only because of the level of stress I been goino through trying to figure this out.
So I Had Rooted My phone succesfully At One Point I Wanted To Flash My Rom and It Failed using twrp. I had backed everything up using twrp and when it came time to trying to restore, it failed as well. Long story short I've been searching for a way to fix this as my phone is stuck in factory mode. Weird thing is that my imei number is still correlates correctly with the sticker on the phone but there are no files/ folders in the efs folder and I feel I've exhausted all of my options. I've tried factory wipes, nandroid restore via twrp which failed. Reinstalling factory Rom via kies and Odin to no avail with this issue.
Am I missing something? Where do I go from here? I know there's something that was backed up onto my sd card as the folder upwards of 1gb. when backed up in twrp I made sure to check everybox. Should i have performed a wipe prior to backup? Any help is much appreciatedas this phone is about a week old and its starting to get a bit frustrating...
i only have one real connectivity issue and it only happens on wi-fi. if i turn it on, it will connect than within 5-10 sec the rom will reset to boot screen and it will say "Factory Mode On! wi-fi is now turning off" other than this, i have full network access.
as of right now i'm stock worst comes to worst, may have to send the phone in, if warranty is void, i have a $175 deductible... trying to avoid this on a brand new phone.
bump anyone

Can't factory reset ST Galaxy S3

Okay, so I'm a newb playing with fire. I wanted to look at getting Cyanogenmod installed on a Straight Talk Samsung Galaxy SIII from Walmart. I followed the steps on (I can't post a URL, but I googled how to install cyanogenmod galaxy s3 and it's the first result) up until step #8 never happened (a blue transfer bar never appeared.)
At this point, I wanted to withdraw, but attempting to power on my phone yielded the SAMSUNG screen with (booting recovery...) at the top left, which lasted a half second before the phone went dark again. I couldn't get it to do anything but this for several tries, until finally I tried entering download mode again. I was able to, and by saying no to installing a custom ROM (volume down button) I was able to boot into the phone normally. At -this- point, I decided I'd try to factory reset the phone, just to make sure I didn't leave any traces from mucking about in the phone's metaphysical guts. However, after confirming a factory reset, the phone would power off, power on, and do the same SAMSUNG (booting recovery...) thing, and I couldn't start it again unless I entered download mode and skipped installing a custom ROM.
So, at this point, I can't factory reset the phone. I'm guessing that my shennaningans with zadig.exe removed the phone's original factory reset recovery files. I'm trying to run through the steps at(again, can't post URL, googled easiest way to unroot galaxy S3 and the android extremist link was the first result) but Straight Talk isn't listed as one of the carriers for the stock file downloads in that tutorial, and while it's an S3 through ST on Verizon's towers, I'd -hate- to assume that I should just get the stock files listed as Verizon's, because I don't want to take a chance of really, really bricking this phone. I don't know if Straight Talk has a unique model of the phone, if it uses Verizon's model number (when on their towers), or what, and I'm scared to proceed. Help?
You are in the wrong forum.

Verizon S9+ Bootlooping Stuck, Trying Not To Erase All Data HELP

Hey, so I woke up today to my phone at a recovery screen (I'm not very familiar with any of this stuff) and it said to reboot, so I did. Since then, it has been stuck in a never ending loop of restarting. I was able to turn the phone completely off, but since starting to tinker in it within the past few hours it won't stay off. Currently I am at some screen where I attempted to follow this video to load some firmware, but I couldn't find the firmware I needed to download as I have no clue what model number or current software version I need. Is this the right step to take to get access back into my phone? I just wanted to save some of my pictures and videos that I don't have saved elsewhere and then factory reset my phone. basically, I've only felt comfortable clearing the cache partition to see if that would work. My problems seem almost the exact same as this thread on this forum. Any help is greatly appreciated. Is there any way to access these files? I looked it up and it said to use Samsung Smart Switch, but I didn't have that on my phone and there is not enough time I have in my phone to download or uninstall any app before it enters the restart loop.

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