Hi all:
I recently purchased the following tablet from Best Buy on Black Friday:
http://www.bestbuy.com/site/d2-android-tablet-4gb-black/2469403.p?id=1219073320325&skuId=2469403
It's running an Allwinner A13 CPU, which I know can be rooted via a variety of methods. My issue is that all of the rooting solutions I have found use an exploit in 4.0.4 to install su and Superuser, but this tablet shipped with 4.1.1, so all of these methods grind to a halt. I have scoured the boards for anything and everything--I've tried the Sony Xperia tool, I've tried Uberizer, I've tried bin4ry's tool--literally nothing seems to work (although bin4ry's tool did seem to install busybox successfully.)
I would greatly appreciate it if someone could help me out--this tablet is borderline unusable because D2 does terrible things to their devices, and if I can get root I can install CWM and begin stripping out all of the bloatware and junk.
Any luck?
spectheintro said:
Hi all:
I recently purchased the following tablet from Best Buy on Black Friday:
http://www.bestbuy.com/site/d2-android-tablet-4gb-black/2469403.p?id=1219073320325&skuId=2469403
It's running an Allwinner A13 CPU, which I know can be rooted via a variety of methods. My issue is that all of the rooting solutions I have found use an exploit in 4.0.4 to install su and Superuser, but this tablet shipped with 4.1.1, so all of these methods grind to a halt. I have scoured the boards for anything and everything--I've tried the Sony Xperia tool, I've tried Uberizer, I've tried bin4ry's tool--literally nothing seems to work (although bin4ry's tool did seem to install busybox successfully.)
I would greatly appreciate it if someone could help me out--this tablet is borderline unusable because D2 does terrible things to their devices, and if I can get root I can install CWM and begin stripping out all of the bloatware and junk.
Click to expand...
Click to collapse
Hey there. I have the same tablet, and have been running up against the same dilemmas.. I'd really like to use this as disposable/travel device.. something that I dont have to worry about at all getting stolen or broken, but that can do the basic things a tablet should do.. But as is, it's jammed so full of kids crap that it has no room left on it, and trying to run JB on it it just rediculas.
I would really like to root it, de-bloat it, and flash a custom rom on it.. something very bare-bones to try and get some pep back in it.
Have you had any luck finding a root solution for this device yet? Nothing I know of has worked.
Thanks in advance.
Max
tf701mega said:
Hey there. I have the same tablet, and have been running up against the same dilemmas.. I'd really like to use this as disposable/travel device.. something that I dont have to worry about at all getting stolen or broken, but that can do the basic things a tablet should do.. But as is, it's jammed so full of kids crap that it has no room left on it, and trying to run JB on it it just rediculas.
I would really like to root it, de-bloat it, and flash a custom rom on it.. something very bare-bones to try and get some pep back in it.
Have you had any luck finding a root solution for this device yet? Nothing I know of has worked.
Thanks in advance.
Max
Click to expand...
Click to collapse
Hey Max:
I unfortunately never was able to get this rooted, and I threw everything I possibly could at it. I ended up returning it. Wish I had better news.
Related
I recently received a Kuno Tablet. It has the same physical characteristics as the 10.1 except for the lack of a hdmi out. Its running android 2.3.1 with a 1.2ghz processor. I have been trying to find some way to root this tablet for a few days now and have had no luck whatsoever. As far as I know no one else has even attempted to root one of these. Help of any kind would be appreciated and I will do my best to answer any questions. I am considering trying petes root tools or gingerbreak but i have my doubts that this will work. I have tried to put the device into some sort of recovery mode but have had no luck so far with any of the button combinations I tried.
Hi xsurferx,
the Kuno really looks like the Archos 101... the chinese engineers are incredible.
Under the hood there's different hardware working.
The manufacturers website mentions a [email protected]
http://mykuno.com/kuno-specs.html
Due to this fact there's nothing in common with the way Archos created the firmware on the A101 and the way you could root this device.
You could try to find out how the firmware looks like on your Kuno... but i guess this is not the right place to discuss these things.
Anyway, good luck!
scholbert
Progress
Any progress on trying to root the Kuno tablet? Superoneclick says that it roots it successfully but Superuser does not get installed. Is there at least a way to flash Gapps onto it? I can't even set up a gmail account unless I use the IMAP settings
super one clicks havent worked for me yet either however, i do work for the high school that i attend on their tablets and anything else they need done, through contact with the company that created the tablets ive learned that the tablet does not have a recovery mode and that the tablets actually have to be imaged like a computer would. So once i get my hands on an image i should be able to modify it to allow root access. If that fails im going to try rooting it through adb and installing superuser that way as well
what shcool has the funds to buy tablets like that?
So you just help them>?
lots of them
Many schools are going to one to one devices to try and help students learn and while they are expensive most of it is payed for by grants and other funds. I do anything they need from pc to mac and android. The tablets will be given out to freshman this coming semester and they want to see just how locked down these are and im assuming that rooting them will be the first step to unlocking them from the cirruculumloft software they are using. They want to see how to unlock them so they can prevent it in the future. Which is where i come in.
Status...
The kuno tablet has a recovery system that can only be accessed by flashing a new firmware to it, however, it is not possible to get this firmware without getting it from the company that made the tablet. So...in order to root the tablet you have to create a custom firmware from scratch for the tablet because the firmware on the tablet was designed in such a way that the android market can not run on it. The company removed the directories and other items the market needs to run. You can not connect the tablet through adb, nor can you install from SD or even access the SD card from inside the firmware the tablets are currently running. In order to root this tablet we would need to create a custom firmware and then flash it onto the tablet. Anyone interested in trying? Also, super one clicks will brick the device, I'm surprised yours still worked after that.
new discoveries
The market will run on the tablet, i was lied to on that one. The tablet connects through adb very easily and most commands work in adb. unfortunately you can not reboot into recovery or the boot loader through adb
unrevoked won't find my tablet. what do i do now?
this
http://lmgtfy.com/?q=unrevoked+won't+find+my+kuno+tablet,+What+now?
I work for a company that will be selling these Kuno tablets to schools. A CurriculumLoft Employee told me these tablets are not approved by Google so that makes them not able to use the android market. I have found that these can use the Amazon App market.
Figured it out!!!
After working on this for the better part of 6 months i have finally achieved root and flashed a custom rom with CWM recovery installed. I found that the Kuno tablet is essentially the same as the Arnova 10 G2 tablet with the exception of hard drive size. Here is the link to the site and instructions i used to flash the rom. If any one has any questions let me know.
http://www.freaktab.com/showthread....ot-GingerComb-quot-Custom-ROM-Version-2-1-CWM
HELP
Hello. Questions, what is adb and i've found a site called blapkmarket.com which lets you download apps if you have firefor installed on your kuno. But my firefox browser crashed so i unistalled it and i cant download apps anymore. My last resort is to reset my Kuno completely and take it to my media specialist. any suggestions ??
kuno 3
xsurferx said:
After working on this for the better part of 6 months i have finally achieved root and flashed a custom rom with CWM recovery installed. I found that the Kuno tablet is essentially the same as the Arnova 10 G2 tablet with the exception of hard drive size. Here is the link to the site and instructions i used to flash the rom. If any one has any questions let me know.
QUOTE]
I followed these instruction. I have the Kuno 3 I'm trying to image with this ROM. The screen is split and the touch is not responsive. Any ideas? Did you have this problem?
Click to expand...
Click to collapse
h.abiff said:
xsurferx said:
After working on this for the better part of 6 months i have finally achieved root and flashed a custom rom with CWM recovery installed. I found that the Kuno tablet is essentially the same as the Arnova 10 G2 tablet with the exception of hard drive size. Here is the link to the site and instructions i used to flash the rom. If any one has any questions let me know.
QUOTE]
I followed these instruction. I have the Kuno 3 I'm trying to image with this ROM. The screen is split and the touch is not responsive. Any ideas? Did you have this problem?
Click to expand...
Click to collapse
Hey any update on this topic? Ive got a Kuno 3 looking to install custom rom.
Click to expand...
Click to collapse
Hey any update on this topic? Ive got a Kuno 3 looking to install custom rom.
Click to expand...
Click to collapse
xsurferx is no longer working on this project. He doesn't have a kuno 3 and recommends you don't try the above method, as it is not for a kuno 3.
I just got a dopo 7" tablet from a relative and for the life of me cannot get it to root. I have been at it since 3-4pm (its 11:10 now) and no matter what
apk or .bat rootkit, or windows root exe i have tried from old guides and some new ("can root ANY android device 2014!!!") to youtube videos.
Yes I have the correct driver thanks to vroot downloading it.
i have unknown sources checked
debugging checked
tablet never sleeps/screen never shuts off
have it plugged into laptop via the cable the tablet came with usb to micro
root master apk failed
suggested root-rk29 tab rootkit each step it tried it could not find any of the necessary files needed on my tablet
(even after 3 restarts and 3 different methods)
vroot will try to restore data like the programs steps shows but as soon as it says restore started it immediately says restore ended and it gives an X in the circle and wants me to retry (tried 4 times)
tried doomlordz v4 rootkit and same as other rootkit it says the files arnt found and does the alternative methods and SAYS its completed but root checker still says its not
tried key root master mentions something about a cloud program but never roots
superoneclick becomes unresponsive for 20mins and does nothing so i have to end task (some says it freezes their phone/tablet) but my tablet acts like nothing is happening
I have tried googling multiple times only to find results related to 9" version (i assume newer)
So if ANYone knows a 95% guaranteed program/guide or something I would very much like to see it cause I have about reached my limit of patience on this thing
Please keep the guide simple as I have 0 knowledge on rooting other than reading up why I would want it or the common steps which did not work obviously...
What version of android does it have, 4.1.1 or 4.2.2? I have the same tablet and have been trying for about 6 weeks to root it. Mine came with 4.2.2. I have read that the 4.1.1 version has been successfully rooted. First off, you said that root master suggested root-rk29 tab but it wouldn't work. The reason is that rk29 is for a rockchip SoC and the em63 has an amlogic 8726-mx SoC. I have tried just about every root method I can find, both manual, oneclick, apk, and Windows scripts with no luck. I am hesitant to try modifying some of the methods because if something goes wrong chances of recovering aren't good. As far as I know, there's no way to create a backup of the firmware without root. I have talked with tech support at DoPo and to get a copy of the firmware I have to send in a microsd and they will put a copy on it. Of course after rooting the warranty will be void and I will no longer be able to receive support, but I'm not too concerned with that. Anyway, for now it looks like the best shot I have at rooting this thing is to modify the firmware and flash it. When I get a copy of the Rom I'd be happy to give you a copy. If you find a way in the meantime to root it please let me know.
If anyone else has any ideas or if someone with the 4.1.1 firmware could provide a copy I would greatly appreciate it. Thanks.
nerd1026 said:
What version of android does it have, 4.1.1 or 4.2.2? I have the same tablet and have been trying for about 6 weeks to root it. Mine came with 4.2.2. I have read that the 4.1.1 version has been successfully rooted. First off, you said that root master suggested root-rk29 tab but it wouldn't work. The reason is that rk29 is for a rockchip SoC and the em63 has an amlogic 8726-mx SoC. I have tried just about every root method I can find, both manual, oneclick, apk, and Windows scripts with no luck. I am hesitant to try modifying some of the methods because if something goes wrong chances of recovering aren't good. As far as I know, there's no way to create a backup of the firmware without root. I have talked with tech support at DoPo and to get a copy of the firmware I have to send in a microsd and they will put a copy on it. Of course after rooting the warranty will be void and I will no longer be able to receive support, but I'm not too concerned with that. Anyway, for now it looks like the best shot I have at rooting this thing is to modify the firmware and flash it. When I get a copy of the Rom I'd be happy to give you a copy. If you find a way in the meantime to root it please let me know.
If anyone else has any ideas or if someone with the 4.1.1 firmware could provide a copy I would greatly appreciate it. Thanks.
Click to expand...
Click to collapse
yup 4.2.2 so in the end till i see a working method im giving this 1 to my younger sibling and getting the nexus 7... hopefully itll be an easier and less stressful time. hope you get it to work.
I figured it was the updated version. They seem to have patched the updated version so most root methods won't work. It's good from a security standpoint, but I wish they would provide a way to root if that's what you want to do. It's a tablet, not a phone so locking it into one provider isn't an issue. Anyway, I'm sure you'll be happy with the nexus 7. That's what I have and I'm very happy with it. There's tons of support and custom roms. Rooting it is super easy too. I used wug's toolkit and I had it rooted, did a nandroid backup and installed twrp recovery in about 30 min. If you do happen to root the em63, or get a copy of the 4.1.1 Rom, please let me know. If anyone else has any ideas, or anything, please post. Thanks.
Hope this helps! I got it!
I hope this helps the EM63 users!
http://forum.xda-developers.com/gen...uble-power-em63-7-4-2-2-t2811412/post54045765
I was able to root my Gigabyte em63 with Root Genius with no problems.
I'm trying to find if anyone has a rom or if someone has gotten twrp for this model. My internal memory became unmounted or something because my total space is 0bytes making it impossible to do anything. Boots up in factory everytime and I can't install any apps.
Anyone have any luck?
Stock Firmware for Emdoor EM63
donbwhite said:
I was able to root my Gigabyte em63 with Root Genius with no problems.
I'm trying to find if anyone has a rom or if someone has gotten twrp for this model. My internal memory became unmounted or something because my total space is 0bytes making it impossible to do anything. Boots up in factory everytime and I can't install any apps.
Anyone have any luck?
Click to expand...
Click to collapse
Envizen has the stock firmware for the EM63 posted on there site. I don't know if it will work on the Gigabyte branded tablet but it does work for the Apex branded one without a problem. Just Google search for the Envision website and look for the EM63.
Hi Everyone,
Wanted to know if anyone has already figured out or through a different method, can help me root my phone.
It's an LG phone under GSM technology by TracFone for Walmart Straight Talk service. the Model is "LG l21g" or "lgl21g".
It is specifically running Android 5.0.1
I've learned it's better to follow a root process specifically made for the exact model of your phone. But since TracFones lack much in rooting fame, I'm hoping that there is a safe method used to provide basic root access to phones/devices that have the respective OS. For which in my case is version 5.0.1
I am new to rooting but not computers in general. I have searched for quite a while for a way to root my device by model. I've found nothing, and AndroidArea51 seemed to have a little success, but are not sharing a clear tutorial sadly. But I am skeptical about 1 click root apps and how they may tend root the device for a few months before unrooting automatically and then forcing the device owner to pay to root again. You know, the old regular malicious hijacking software you can't get rid of without a hard reset or what not.
I am also aware of locked bootloaders but am not sure of what it means for my request to root. Should i unlock mine if it is locked in order to root? Or is it unnecessary unless i want to flash a new rom onto my device? I've obviously read things online, but am still learning the relationships of all these things
I greatly appreciate all your time and help in anyway you can.
Thanks.
I used kingroot for a successful root on my LG destiny. Im hoping for recovery and roms soon but I don't know if any devs are intersted in our phone.
Failbringer60 said:
I used kingroot for a successful root on my LG destiny. Im hoping for recovery and roms soon but I don't know if any devs are intersted in our phone.
Click to expand...
Click to collapse
hey Failbringer60,
Hope your holidays were great and thanks for your comment. I am very skeptical of software such as kingroot and iroot and others of the same nature that are usually one-click root types. Though i'm not against using it if it's the only way to root less popular devices such as ours, i would rather have a little tutorial/guide on how to use the app/software to root the device then get rid of that app and its bloatware (and any other malicious ware that comes from it) and sustain a more honest or reliable superuser app/access to more precisely control the permissions that apps from the app store demand before download and use.
I have seen in other forums where users find that these one-click root apps aren't so trustworthy after a few months, and the device doesn't adhere to them as it did before. It's these kinds of things that sort of scare me. but if you are aware of a way to use these apps to gain root access and then a way to get rid of them while keeping root on my device safely, I would be more than glad to learn.
I am very new to rooting android devices since i've never done it before. and am trying to use my knowlegde from some PC maintenince to understand these things. so i hope that you can excuse me for not fully understand some things. But i am open to any help that can be spared.
Thanks in advance
hi
try kingroot on playmarket it worked in my tablert, only takes some minutes if you are lucky
Thanks.
thewildnative said:
hey Failbringer60,
Hope your holidays were great and thanks for your comment. I am very skeptical of software such as kingroot and iroot and others of the same nature that are usually one-click root types. Though i'm not against using it if it's the only way to root less popular devices such as ours, i would rather have a little tutorial/guide on how to use the app/software to root the device then get rid of that app and its bloatware (and any other malicious ware that comes from it) and sustain a more honest or reliable superuser app/access to more precisely control the permissions that apps from the app store demand before download and use.
I have seen in other forums where users find that these one-click root apps aren't so trustworthy after a few months, and the device doesn't adhere to them as it did before. It's these kinds of things that sort of scare me. but if you are aware of a way to use these apps to gain root access and then a way to get rid of them while keeping root on my device safely, I would be more than glad to learn.
I am very new to rooting android devices since i've never done it before. and am trying to use my knowlegde from some PC maintenince to understand these things. so i hope that you can excuse me for not fully understand some things. But i am open to any help that can be spared.
Thanks in advance
Click to expand...
Click to collapse
Thanks, I hope your holidays were great as well. I understand your reasoning for concern. I haven't been able to successfully use supersu to handle root operations. Busybox will not install correctly either for me. I have successfully achieved root access though through kingroot. I don't remember the version I used but it has been rooted for well over 2 months with zero issues. I have replaced my bootanimations without bootloops as well.
I am currently trying to romdump and pull device tree to see if I can get a KDZ created or ported. As I am trying to get twrp recovery installed. And I think the only way for that to happen is to get to 5.1. But to answer any doubt. My experience with kingroot has been okay. Also rootchecker apps confirm root as well.
Failbringer60 said:
Thanks, I hope your holidays were great as well. I understand your reasoning for concern. I haven't been able to successfully use supersu to handle root operations. Busybox will not install correctly either for me. I have successfully achieved root access though through kingroot. I don't remember the version I used but it has been rooted for well over 2 months with zero issues. I have replaced my bootanimations without bootloops as well.
I am currently trying to romdump and pull device tree to see if I can get a KDZ created or ported. As I am trying to get twrp recovery installed. And I think the only way for that to happen is to get to 5.1. But to answer any doubt. My experience with kingroot has been okay. Also rootchecker apps confirm root as well.
Click to expand...
Click to collapse
Thanks for your reply. I apologize for not being able to understand all the technical jargon when it comes to the android platform, but as i ask questions, i can pick up on it fairly quickly.
For now i take it that you are still figuring out a way to backup your android system, since the only offer the LG Destiny has, is to back up your data to google cloud. It seems that either tracfone devices took that ability away (since i think that any computer like device should have a recovery system - though i could be wrong) or it is a flaw in android 5.0.1 which is what our devices are running.
I take it that you are "romdump"-ing to kinda like create a clone in a storage space which you can turn into a recovery rom in case the device messes up - i think.
I'm glad to hear that Kingroot worked for you. I would like to try it too but i would first love to back up my system entirely so that if a noob like me does mess up, i haven't completely lost everything.
Can i ask you if you are able to delete/uninstall bloatware from your Destiny now that you have it rooted. But you say that you are not able to install supersu (which i assume is software that lets you control your device with admin rights)? Reading things online, i've come to see that kingroot has a supersu type of software, but that it's inferior or malicous or something, hence why people are trying to install supersu in replacement. I may be missing some facts there, but i'm always see a relationship between the two.
Would you lose your root access, or ability to remove bloatware and control other app permissions if you removed kingroot? Or is it supersu that retains the root access that kingroot achieved, but people are ridding their devices of kingroot because kingroot inevitably introduces its own bloatware at the price of a rooted device?
Sorry to sound all over the place. I've just seen a consistent connection between kingroot and supersu online everywhere i look. I've never seen how either of these apps work on a device once installed, but i do know that people are always using supersu right after using kingroot.
Exactly, for the LG leon user they got the update to 5.1 which enabled them to unlock the bootloader and flash a custom recovery for the ability to back up the rom. As for us Destiny users I think we aren't going to ever get anything but root for a while. And yes kingroot does install its own bloat ware. And I have removed all the stock bloatware that came with my phone.
Failbringer60 said:
Exactly, for the LG leon user they got the update to 5.1 which enabled them to unlock the bootloader and flash a custom recovery for the ability to back up the rom. As for us Destiny users I think we aren't going to ever get anything but root for a while. And yes kingroot does install its own bloat ware. And I have removed all the stock bloatware that came with my phone.
Click to expand...
Click to collapse
Hi Failbringer60,
Were you able to somehow successfully backup your Destiny's rom to use as a recovery source? I myself just went through a whole lot of folly and have practically lost my device. I believe my spoiled Destiny is soft-bricked. It will not boot past the LG logo screen. I don't think it's looping since it doesn't fade to black and return repetitively. It's just frozen on that screen. Now i'm diving deep and reading a whole lot more about such problems and solutions, and am learning much more. But sadly, the design Tracfone has left the Destiny (and most likely it's other android models alike) is quite handicapped. I've come to understand that there is absolutely no boot menu with particular options you'd normally find in flagship models, and recovery only works if, well, if the device still works (as far as i've tried everything i know). Part of that recovery would make sense if content was the only concern. Though any system based malfunction is merely a complete loss. I have yet to download and try a few pc applications that others use to connect to their android devices. But since needing exact phone/model firmware or system image backup to fix many android issues are what these pc applications use, and LG having completely omitted the lgl21g model from all their lists on their site (except for the product landing page of course), I have no idea how it would help my situation. For all I've said, i may stand corrected, since i have yet to attempt the revival of my device.
So i hope no one gets annoyed when i ask weird questions, but i'll do what i can and document my findings. If you or anyone else may know how to help me, I would very much appreciate it. If you need more info from me. let me know.
Thanks.
Hey all, I've tried to use various methods found here and elsewhere to root this tablet, with no luck.
I just got it from BB, and updated to the very latest (with Stagefright) ... now trying to use the Intel Flash Lite Tool with droidboot? FAIL Try using the Fastboot Tethered Recovery Launcher? FAIL
Did I screw myself by updating to the latest OS beforehand? Is there any way to get root now? Thanks all!
I had the exact same problem yesterday, and after a bunch of reading it's my understanding that there is no way at the moment to root an uprooted 7840 with the stage fright fix. Someone please correct me if I'm wrong.
Hopefully someone will be able to figure out how to root this soon. It's a nice little tablet.
Having (successfully) gone through the anxious moments of removing root, downgrading, then restoring 5.1 to install the Stagefright fix, I would recommend that you seriously reconsider whether or not you absolutely need root. It's highly likely that any future patches, or even a possible Android v6 (?) upgrade, will not install if your device is rooted - so you'll have to wait until some kind soul finds a possible way to unroot.
as we have the possibility to unlock the bootloader since 5.1, there might be a good chance that a permanent CWM recovery (and therefore installing/uninstalling root with a few clicks) is possible. I've never compiled CWM before, but as there are plently of good tutorials and even a CWM builder tool,i'll give it a try the next days. Let's see how far we get.
The old tethered boot method won't work because you'd have to reverse to 5.01 droidboot and system.img for rooting, which would most likely mess up your system.
So is the consensus here that we can not root on the latest 5.1? Running the Intel phone flasher all it does it attempt to detect the device and fail. I only really need to root so I can adjust left/right audio balance since my hearing is a bit messed up so anything anyone can give me here would be appreciated.
ziemas said:
I had the exact same problem yesterday, and after a bunch of reading it's my understanding that there is no way at the moment to root an uprooted 7840 with the stage fright fix. Someone please correct me if I'm wrong.
Hopefully someone will be able to figure out how to root this soon. It's a nice little tablet.
Click to expand...
Click to collapse
There is a means of doing it, but you do not truly have all the pieces of the sg update. If you're adventuresome, it's fine. I'm looking at a couple of issues already. They're not show stoppers, but they wouldn't have happened.
As systemless root grows, that may be a future possibility as well.
So I have spent literally days, in an ultimate attempt to upgrade to a ROM of Android 8.1
I have never attempted anything like this and it seemed to be straight forward enough to try myself. I quickly realised that I needed to install TWRP on my tablet. Then upon hours more research I learned that to do this, the tablet must be rooted. But it cannot be rooted if it is running Android 6.1.0, which it currently is. So I need to downgrade it to it's original firmware, something like Android 4.4.1. But then one of the steps of doing this is that it also needs to be rooted. To root the device I must enter recovery mode. I have tried the physical button pushing method so MANY times, I have sore hands now. It didn't even work once. How else can this be achieved on my device? What other methods can I use? I have heard of something called ADB.... or something like that. As a complete beginner I am unfamiliar with how to use this. Could someone please help me?
I don't know if this information is also handy, but the bootloader IS unlocked. I was able to do that about 6 months ago, when a friend of mine attempted unsuccesfully to put a custom ROM on it.
First time sorry for my poor English...
What ROMs do you use now and what do you want?
I've been dying for two days, but I've been updated (Stock 4.4.4 to Custom 8.1)! I also use SGP-521.
It was a nightmare, but it did. If I can, I will help you!