Galaxy S4 Sprint Encryption failed - stuck on Reset Device
Hello all,
First, forgive me if the steps I followed below don't make any sense, I don't really know much if what I am / was doing. Anyway:
I have a Galaxy S4 from sprint, L720
I'm about to sell my phone, and I few months ago I rooted it following this procedure using odin:
http://forum.xda-developers.com/galaxy-s4-sprint/general/rom-100-stock-l720vod2-5-0-1-t3105760
Not too much to say here, this is just more of a background information.
Anyway, Because I'm selling my phone, I wanted to make sure my information was deleted securely form the device, and found that many people said it should be encrypted.
I tried to do that, and after a couple of hours of the phone stuck on a blank screen, I removed the battery and restarted it.
Now I have a screen that says "Encryption failed" - "Reset Device", only the button to reset it, does nothing.
I follow that guide again, installed that rom again.
I also have twrp, did factory reset, wiped all the data, and still, when I boot, I get that same message.
I have also tried to backup the data (after the debacle), restore it and factory reset the phone.
This leaves the phone stuck on the very first screen, "Samsung Galaxy S4", which maybe a good sign or not.
Any ideas?
barrad0s said:
Hello all,
First, forgive me if the steps I followed below don't make any sense, I don't really know much if what I am / was doing. Anyway:
I have a Galaxy S4 from sprint, L720
I'm about to sell my phone, and I few months ago I rooted it following this procedure using odin:
http://forum.xda-developers.com/galaxy-s4-sprint/general/rom-100-stock-l720vod2-5-0-1-t3105760
Not too much to say here, this is just more of a background information.
Anyway, Because I'm selling my phone, I wanted to make sure my information was deleted securely form the device, and found that many people said it should be encrypted.
I tried to do that, and after a couple of hours of the phone stuck on a blank screen, I removed the battery and restarted it.
Now I have a screen that says "Encryption failed" - "Reset Device", only the button to reset it, does nothing.
I follow that guide again, installed that rom again.
I also have twrp, did factory reset, wiped all the data, and still, when I boot, I get that same message.
I have also tried to backup the data (after the debacle), restore it and factory reset the phone.
This leaves the phone stuck on the very first screen, "Samsung Galaxy S4", which maybe a good sign or not.
Any ideas?
Click to expand...
Click to collapse
Reflash your device with stock firmware and wipe it.
Newyork! said:
Reflash your device with stock firmware and wipe it.
Click to expand...
Click to collapse
That worked. I had tried with other ROMs, such as the rooted one mentioned above and it did not work. The original one did. Thank you sir!
Related
Hey guys,
Is data recovery possible after a flash? Also, what is wrong? I have searched but no answer directly hits on this. I am not a tech guy- Biology- sorry for that ahead. To the issue, I dlowded a software update to my Galaxy s3.....and boom froze on Samsung screen. I can turn phone off and on. It would not boot past Samsung. So I went into cache partrition, and tried a system reboot- cannot. So then I seen a program that supposively recovers data after factory reset if you do nothing else to the phone. However, problem I hit te dreaded factory reset- nothing. Over a software update? My computer is not recognizing the device. So I went to Samsung, they tried installing software, however, the computers were recognizing, but not connecting. One tech said they did not have flash- I went back again, the othertech said they did. Anywho, after 4 days, I forked my phone over to a repair guy. He I believe tried Odin- as it currently sits in odin mode. Now it was getting into download mode- but ow I have this message- " Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again." A samsung guy mentioned it might be able to be flashed, as my concern data- not backed up. This info is pretty important, as I have several contacts and mssgs. The two modes my phone can go into: Odin and recovery. I could really use the help, on both saving data, and getting the phone to fire- as it might be able to- but data?
Thanks in advance.
Use helium for recovery data
Peluche321 said:
Use helium for recovery data
Click to expand...
Click to collapse
Before or after the a Flash? Thanks for the reply.
Need suggestions for this.
A few weeks ago I rooted my phone to remove some apps that I never used. I just kept using my phone as always and did nothing special except removing those apps. Today I decided to unroot my phone because I felt it would be safer in case anything should happen to it (HOW IRONIC). It's only 3 months old and I didn't want to loose my warranty. I opened the SuperUser app and clicked full unroot and clicked continue. My phone instantly returned to the home screen and then powered off. Then it turned on again, but now the message "Samsung Galaxy S7 powered by Android" keeps flashing on the screen. I went into recovery mode and tried wiping the cache first, but nothing changed. Then I wiped all my data and did a factory reset, but my phone keeps flashing and won't turn on. I'm really desperate and don't know what to do because I'm afraid I can't take it to my retailer because my phone is rooted (if it still is rooted, but I have no idea). What should I do?
Hi,
Try posting your question here:
http://forum.xda-developers.com/galaxy-s7/help
The experts there may be able to help.
Good luck!
Need suggestions for this.
A few weeks ago I rooted my phone to remove some apps that I never used. I just kept using my phone as always and did nothing special except removing those apps. Today I decided to unroot my phone because I felt it would be safer in case anything should happen to it (HOW IRONIC). It's only 3 months old and I didn't want to loose my warranty. I opened the SuperUser app and clicked full unroot and clicked continue. My phone instantly returned to the home screen and then powered off. Then it turned on again, but now the message "Samsung Galaxy S7 powered by Android" keeps flashing on the screen. I went into recovery mode and tried wiping the cache first, but nothing changed. Then I wiped all my data and did a factory reset, but my phone keeps flashing and won't turn on. I'm really desperate and don't know what to do because I'm afraid I can't take it to my retailer because my phone is rooted (if it still is rooted, but I have no idea). What should I do?
Surya Kumar said:
Need suggestions for this.
A few weeks ago I rooted my phone to remove some apps that I never used. I just kept using my phone as always and did nothing special except removing those apps. Today I decided to unroot my phone because I felt it would be safer in case anything should happen to it (HOW IRONIC). It's only 3 months old and I didn't want to loose my warranty. I opened the SuperUser app and clicked full unroot and clicked continue. My phone instantly returned to the home screen and then powered off. Then it turned on again, but now the message "Samsung Galaxy S7 powered by Android" keeps flashing on the screen. I went into recovery mode and tried wiping the cache first, but nothing changed. Then I wiped all my data and did a factory reset, but my phone keeps flashing and won't turn on. I'm really desperate and don't know what to do because I'm afraid I can't take it to my retailer because my phone is rooted (if it still is rooted, but I have no idea). What should I do?
Click to expand...
Click to collapse
Hi mate
I would reflash again with odin using home csc instead of CSC so you do not loose your data and settings......
Edit : once it has been rooted the knox bit is set , there is no way back
Hey guys,
I have encountered a serious problem on my device. Today I rebooted my phone once and it has just stuck on the samsung logo. Then the phone began to reboot without ending....It could not just start. With the help of TWRP I have made a full wipe and tried to reinstall my actual firmware Superman 1.10.5, but I always stuck at 25%, the phone did not respond to any actions. I even tried to flash the stock 4-file firmware with Odin, but it did not help, the phone constantly reboots. Sometimes it manages to boot to the stage where the sign "installation of applications" appears, but a while later it stucks again and reboots. Please, help me to solve the issue, because I am begininng to think that it would be unpossible to recover the phone. I am only able to enter the download mode or recovery, anything else does not work.
Thanks....
AuroraLX said:
Hey guys,
I have encountered a serious problem on my device. Today I rebooted my phone once and it has just stuck on the samsung logo. Then the phone began to reboot without ending....It could not just start. With the help of TWRP I have made a full wipe and tried to reinstall my actual firmware Superman 1.10.5, but I always stuck at 25%, the phone did not respond to any actions. I even tried to flash the stock 4-file firmware with Odin, but it did not help, the phone constantly reboots. Sometimes it manages to boot to the stage where the sign "installation of applications" appears, but a while later it stucks again and reboots. Please, help me to solve the issue, because I am begininng to think that it would be unpossible to recover the phone. I am only able to enter the download mode or recovery, anything else does not work.
Thanks....
Click to expand...
Click to collapse
Really sad to hear that story mate. First things first, I assume your BL version is matching with the firmware your flashing right. And when you go to TWRP, can you see /system and /data partition from the mount menu? If not, you have to perform a factory reset. I had issue like that with my Galaxy S7 and usually factory reset(not wiping) helped me with that situation. Since your system can boot up, but crashes after awhile, I do suspect that some of your partition might be corrupted(at least its what happened to me). So trying factory reset can be a good bet for you.
And... I think you have to provide more information with which variant you are using, and your BL version, TWRP version too, solve the problem quicker. Hope this information helps.
CenteaOSD said:
Really sad to hear that story mate. First things first, I assume your BL version is matching with the firmware your flashing right. And when you go to TWRP, can you see /system and /data partition from the mount menu? If not, you have to perform a factory reset. I had issue like that with my Galaxy S7 and usually factory reset(not wiping) helped me with that situation. Since your system can boot up, but crashes after awhile, I do suspect that some of your partition might be corrupted(at least its what happened to me). So trying factory reset can be a good bet for you.
And... I think you have to provide more information with which variant you are using, and your BL version, TWRP version too, solve the problem quicker. Hope this information helps.
Click to expand...
Click to collapse
Yep, you are right, BL versions always matched firmwares. I tried to wipe the phone with TWRP 3.0.2.3 and also to make a factory reset with the stock recovery. The stock firmware, which I tried to flash, was G930FXXU1BPH6_G930FOXE1BPH1_SER consisting of 4 files including BL,AP,CP and CSC. After 3rd or 4th flash of the same stock firmware the phone suddenly became alive and began to boot. Wu-huuu:silly: I was happy as a child. After having successfully launched the stock rom I have again flashed TWRP 3.0.2.3, went to "wipe" option and formatted data. Then I have installed a Superman Rom 1.12 and everything went the right way. I don't understand only one thing: why after having wiped the phone several times and having reseted it through the stock as well as TWRP recovery it didn't want to boot.
As you said, I suppose that the one of partitions was corrupted. Oh damn, I thought that I won't be able to resuscitate this phone.
I have flashed about 20 phones during my life, but I have never ever encountered such serious problems.
Hello, i recently attempted a root through my s7 edge, worked at first, deleted some factory apps through titanium and after a reboot my phone is stuck on the AT&T logo, ive tried factory resets, cleared caches, and multiple stock flashes to try and salvage my phone... when i flash with odin there is always a model mismatch error... when i tried and factory reset there is a dm-verity verification notification, if someone could point me in the right direction i would be very thankful, this is my 3rd day without a device and im starting to panic.
markied26 said:
Hello, i recently attempted a root through my s7 edge, worked at first, deleted some factory apps through titanium and after a reboot my phone is stuck on the AT&T logo, ive tried factory resets, cleared caches, and multiple stock flashes to try and salvage my phone... when i flash with odin there is always a model mismatch error... when i tried and factory reset there is a dm-verity verification notification, if someone could point me in the right direction i would be very thankful, this is my 3rd day without a device and im starting to panic.
Click to expand...
Click to collapse
Greetings and welcome to assist. I can see you have already asked your question in the correct forum here
http://forum.xda-developers.com/showthread.php?t=3441793
so I'm going to close this one up
Good Luck
Sawdoctor