So I put the safestrap recovery on my i1337 in hopes of flashing a stock rom to it. I followed all steps, and the rom was already loki'd. Now when I boot my phone goes to a black screen and the led flashed a vibrates every few seconds. I still can access the recovery menu and restore with my backup so that isn't a problem. I just want to know what I'm doing wrong and also maybe a link to a proper tutorial on what to do if I am doing something wrong. The rom I was using was KANGAKAT Google-Edition 4.4
You can only use 4.2.2 TW and 4.2.2 GPE. 4.4 is a nogo.
I advise reading both the dev thread located in the development section and the QA thread in the QA section thoroughly.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Related
Ok, I rooted my phone, installed safestrap, and made a virtual rom. I tried installing CM mod from get.cm/?device=jflteatt using the stable version. Successful install. But when I boot the phone, it just goes to a black screen and stays off and I have to boot it up. Cleared cache and Davlik, am I doing something wrong?
AT&T I337 Galaxy S4 w/ MF3 update.
Please read the safestrap q&a thread posted in this q&a forum. Read it from the very beginning.
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[email protected] said:
Please read the safestrap q&a thread posted in this q&a forum. Read it from the very beginning.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
mariokiller64 said:
Ok, I rooted my phone, installed safestrap, and made a virtual rom. I tried installing CM mod from get.cm/?device=jflteatt using the stable version. Successful install. But when I boot the phone, it just goes to a black screen and stays off and I have to boot it up. Cleared cache and Davlik, am I doing something wrong?
AT&T I337 Galaxy S4 w/ MF3 update.
Click to expand...
Click to collapse
To help clear it up, as he said - the original thread does tell you why CM won't work. ROM's compatible with SafeStrap are TouchWiz based ROMs. The original threads will help you to learn more about SafeStrap so you don't screw your phone up.
http://forum.xda-developers.com/showthread.php?t=2448925
http://forum.xda-developers.com/showthread.php?t=2428254
The 2nd link will have a list of confirmed working ROMs with SafeStrap.
Hi all!
I am a noob in need of some help with downgrading my phone, back to 4.2.2 (Jellybean).
My current situation is as follows:
I initally got the S4 from AT&T with the stock 4.2.2 rom (with the Build # ending in MF3, and the Baseband version of i337). Soon after sometime I had rooted that version on my phone and everything was alright.
After a couple of months 4.4.2 was released and AT&T started pushing it out/releasing it for download. So I went ahead with the download without doing a proper backup of the then current rom (4.2.2) (a really dumb idea on my part! ) - so I don't have a snapshot of the 4.2.2 rom.
Anyways, after the update I current have the S4 with (Kitkat 4.4.2 - Build # NB1 and the baseband is still the same - i337). I know there are some threads out there somewhat outlining what needs to be done and so forth, with people tested it out as well. But I am having a hard time following the instructions, also I haven't found one that has a clear instruction set for downgrading 4.4.2 to 4.2.2.
The reason I need this soon is because my phone has started glitching big time now (seems like it may not be able to handle the switch) - it has started overheating with basic functionalities such as calling/text/charging, and having random 'black screens', and all this began happening only after the upgrade.
What I'm looking for (if possible):-
A non-rooted method of backing up application data from the phone before the downgrade
A way to downgrade 4.4.2 to 4.2.2 (I should be able to figure out how to root it once its back to jellybean)
A way to retain emoji's
Any help will be appreciated regarding this! Please try not to be too harsh, I'm trying hard to learn properly and not screw up with the process.
Thanks!
There is no way to downgrade to 4.2.2. Don't even waste your time.
Sent from my Nexus 5 using XDA Free mobile app
zdarkangel said:
Hi all!
I am a noob in need of some help with downgrading my phone, back to 4.2.2 (Jellybean).
My current situation is as follows:
I initally got the S4 from AT&T with the stock 4.2.2 rom (with the Build # ending in MF3, and the Baseband version of i337). Soon after sometime I had rooted that version on my phone and everything was alright.
After a couple of months 4.4.2 was released and AT&T started pushing it out/releasing it for download. So I went ahead with the download without doing a proper backup of the then current rom (4.2.2) (a really dumb idea on my part! ) - so I don't have a snapshot of the 4.2.2 rom.
Anyways, after the update I current have the S4 with (Kitkat 4.4.2 - Build # NB1 and the baseband is still the same - i337). I know there are some threads out there somewhat outlining what needs to be done and so forth, with people tested it out as well. But I am having a hard time following the instructions, also I haven't found one that has a clear instruction set for downgrading 4.4.2 to 4.2.2.
The reason I need this soon is because my phone has started glitching big time now (seems like it may not be able to handle the switch) - it has started overheating with basic functionalities such as calling/text/charging, and having random 'black screens', and all this began happening only after the upgrade.
What I'm looking for (if possible):-
A non-rooted method of backing up application data from the phone before the downgrade
A way to downgrade 4.4.2 to 4.2.2 (I should be able to figure out how to root it once its back to jellybean)
A way to retain emoji's
Any help will be appreciated regarding this! Please try not to be too harsh, I'm trying hard to learn properly and not screw up with the process.
Thanks!
Click to expand...
Click to collapse
The only way is sending it for service to see if they could downgraded for you, which I doubt it. You can downgrade to Mk2 which is possible and try to isolate your problems.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
jd1639 said:
There is no way to downgrade to 4.2.2. Don't even waste your time.
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
Thank you for your response jd! Can I ask why there isn't a way so far? Is it because of the kernel lock or something?
netomel said:
The only way is sending it for service to see if they could downgraded for you, which I doubt it. You can downgrade to Mk2 which is possible and try to isolate your problems.
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thank you for your response netomel! What instructions/thread can I follow to revert to mk2? Also is there a possible youtube video outlining the workable downgrade?
zdarkangel said:
Thank you for your response jd! Can I ask why there isn't a way so far? Is it because of the kernel lock or something?
Thank you for your response netomel! What instructions/thread can I follow to revert to mk2? Also is there a possible youtube video outlining the workable downgrade?
Click to expand...
Click to collapse
It is because of the locked bootloader. You can not downgrade the firmware, except from nb1/nc1 to mk2
Sent from my Nexus 5 using XDA Free mobile app
zdarkangel said:
Thank you for your response jd! Can I ask why there isn't a way so far? Is it because of the kernel lock or something?
Thank you for your response netomel! What instructions/thread can I follow to revert to mk2? Also is there a possible youtube video outlining the workable downgrade?
Click to expand...
Click to collapse
Sorry I did not provided before I though you would look for it. Anyway here is the link to a thread I follow.
http://forum.xda-developers.com/showthread.php?t=2663545
1. Usually you need first to flash full NB1 found on post # 2.
2. Downgrade to mk2 post#1 before reboot pull battery and back on. Put in recovery mode by pressing Vol up+ Home+ power at same time. Then factory reset and reboot to system.
Root using safe root
Install safe strap then install recovery within safestrap.
Flash Bypasslkm in safestrap.
Reboot fix wifi in universal init.d : turn on, tap on wififix then hit play.
Finish setup.
Once you are here you can choose any TW base rom.
Sent from my SCH-I545 using XDA Premium 4 mobile app
netomel said:
Sorry I did not provided before I though you would look for it. Anyway here is the link to a thread I follow.
http://forum.xda-developers.com/showthread.php?t=2663545
1. Usually you need first to flash full NB1 found on post # 2.
2. Downgrade to mk2 post#1 before reboot pull battery and back on. Put in recovery mode by pressing Vol up+ Home+ power at same time. Then factory reset and reboot to system.
Root using safe root
Install safe strap then install recovery within safestrap.
Flash Bypasslkm in safestrap.
Reboot fix wifi in universal init.d : turn on, tap on wififix then hit play.
Finish setup.
Once you are here you can choose any TW base rom.
Sent from my SCH-I545 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
That's such a goofy way to fix wifi. I've never actually had to do that (mostly because it never actually worked for me). Flash this instead after you flash your TW based rom: NC1 wifi modules. Much more noob friendly, in my opinion! Domination and PurifieD both let you keep Androids emoji's instead of Samsung's.
A rough idea of how to flash a custom rom (PurifieD, in this example) would be:
Downgrade to MK2 as detailed above
Install and boot into Safestrap 3.72, flash PurifieD (wipe not necessary)
If you wish to keep Knox happy with 0x0, do not let PurifieD modify the kernel during the Aroma installer when it asks
Flash an i337 build.prop in order to get 4G LTE working again (you have service without this, but this lets you access LTE again) (you can find this here!)
Flash the WiFi module in order to get wifi working again (WiFi will NOT work unless you flash this) (you can find this here!)
(Optional, I had to do this as I had issues with keeping root on PurifieD, though you might not!) Flash SuperSU again (you can find this here!
Rhymey said:
That's such a goofy way to fix wifi. I've never actually had to do that (mostly because it never actually worked for me). Flash this instead after you flash your TW based rom: NC1 wifi modules. Much more noob friendly, in my opinion!
Click to expand...
Click to collapse
That's after you have flash NC1 rom, but this is when you downgrade to mk2 from there he could flash any TW rom. Actually it would be his choice. Maybe he can flash the mk2 modules before he flash other rom.
Sent from my SCH-I545 using XDA Premium 4 mobile app
netomel said:
Sorry I did not provided before I though you would look for it. Anyway here is the link to a thread I follow.
http://forum.xda-developers.com/showthread.php?t=2663545
1. Usually you need first to flash full NB1 found on post # 2.
2. Downgrade to mk2 post#1 before reboot pull battery and back on. Put in recovery mode by pressing Vol up+ Home+ power at same time. Then factory reset and reboot to system.
Root using safe root
Install safe strap then install recovery within safestrap.
Flash Bypasslkm in safestrap.
Reboot fix wifi in universal init.d : turn on, tap on wififix then hit play.
Finish setup.
Once you are here you can choose any TW base rom.
Sent from my SCH-I545 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks! That's a good start for me I guess. I still need to understand what each step means, and how to do them. Another thing, do you know if there's a way to retrieve all application data/backup my current rom state, without root, from my current NB1 build?
zdarkangel said:
Thanks! That's a good start for me I guess. I still need to understand what each step means, and how to do them. Another thing, do you know if there's a way to retrieve all application data/backup my current rom state, without root, from my current NB1 build?
Click to expand...
Click to collapse
This is more of a summary because some of the step cover separate threads for each. You got to do some reading. I gave you a link any how you will find the threads on the general section.
http://forum.xda-developers.com/showthread.php?t=2735644
Sent from my SCH-I545 using XDA Premium 4 mobile app
Thank you all for the information! I will go through the links you guys gave me and respond on here if I have any questions or if I need any more help. :fingers-crossed:
I'm extremely new at rooting and flashing roms, so please excuse my ignorance. I have a Verizon Note 3 SM-900V. I'm running Android 4.4.2 and my Baseband version is NC4. I've rooted it using"TowelRoot" and have installed Safestrap 3.72. I've booted into recovery partitioned slot 1 and wiped it. Then I installed HyperdriveRLS7.zip I hit reboot after it says it's finished installing the rom. Whenever I try to boot into the rom (slot 1), my screen goes black and my blue LED light stays on. I also tried flashing the rom named "hltevzw.Jellybeans.zip" and it does the same thing. Am I doing something wrong or is anything incompatible with the other? Any input would be greatly appreciated. Thanks in advance for your help.
Sent from my SM-N900V using XDA Free mobile app
ElectroJoe said:
I'm extremely new at rooting and flashing roms, so please excuse my ignorance. I have a Verizon Note 3 SM-900V. I'm running Android 4.4.2 and my Baseband version is NC4. I've rooted it using"TowelRoot" and have installed Safestrap 3.72. I've booted into recovery partitioned slot 1 and wiped it. Then I installed HyperdriveRLS7.zip I hit reboot after it says it's finished installing the rom. Whenever I try to boot into the rom (slot 1), my screen goes black and my blue LED light stays on. I also tried flashing the rom named "hltevzw.Jellybeans.zip" and it does the same thing. Am I doing something wrong or is anything incompatible with the other? Any input would be greatly appreciated. Thanks in advance for your help.
Sent from my SM-N900V using XDA Free mobile app
Click to expand...
Click to collapse
First of all you need to know that you cannot use rom slots on NC4 only the stock slot. You can use the stock slot to flash custom roms.
Second you need to update you firmware to the so-called unified firmware which is simply what you currently have and the NC2 kernel which can be found here. Just follow the instructions and you'll be good to go.
Third you should upgrade to Safestrap 3.75 found here.
If you have soft bricked your phone (this will be the case if after pulling the battery you cannot boot into Safestrap, you'll need to flash the stock firmware via odin which can be found here, reroot, and then follow the above directions.
Now once you get all this taken care of you can flash a custom rom. Any rom based on NC2/NC4 will work, however any rom based on any earlier firmware will not work and may softbrick your phone, Jellybeans being one of them. Make sure you read the OP (Original Post) before flashing anything. Know what you are flashing, if you are unsure there are many many forum posts to read through that are full of info.
If you have any other questions just ask.
Many Thanks!
Glad to help.
I have purchased a Moto X. Do you have any knowledge on flashing roms on it? I hate to be a bother.
Sent from my SM-N900V using XDA Free mobile app
ElectroJoe said:
I have purchased a Moto X. Do you have any knowledge on flashing roms on it? I hate to be a bother.
Sent from my SM-N900V using XDA Free mobile app
Click to expand...
Click to collapse
Did you know the new Moto X was just announced and should be out in a couple months? Oh well, check out these forums. I don't know anything about the Moto X so I won't be able to help you sorry.
Note: Relevant device info will be provided below.
Dear techwizards,
I've been trying to root my phone for a while, I've done it before: both my S II and S III were international variants, and rooting those devices was very simple. But after getting an S IV from America and consensually downloading a samsung issued update -- I had yet to read up on the disadvantages of knox -- my rooting and android experience took a turn for the worse.
Long story short -- I know developers are a proud bunch who value their time -- I tried rooting my phone yesterday after almost smashing my phone on a coffee table. They say it's a well known side effect of Touchwiz, but I'll leave that to you.
I used a towelroot.com root -- a wonderful tool, if I may say so. After that, I visited the CM website and picked out the compatible CM11. I never got to flashing it though, as my problems arose while installing a recovery.
I had downloaded an app, a something recovery or another. They had an option to flash recoveries on there--it would download your recovery for you and do all the work, which seemed plausible as most video tutorials demonstrated. To my astonishment, doing so bricked my phone.
I tracked back, looked for the samsung stock rom, downloaded all 2.2 gb's of it and flashed it. It worked. My phone was functional but I suspect something within it stinks. My device, apparently for security reasons, wont let my wifi or 4g to establish a connection. It's making it impossible for me to fix this problem as I can't root my device or flash a custom rom.
About Device:
Pre problem I was running a:
SGH-I337UCUFNC1 baseband. Build Number ending with: NC1.
Android version: 4.2.2
Post problem:
Baseband: I337UCUFNC1
Build Number: JSS15J.I337UCUEMK2
Android version 4.3.
If I could find my original stock 4.2.2 NC1 version and get simple instructions on how to re-install it back to stock version, I'd be very grateful.
If you know how I could fix the internet issue on the MK2 one, and provide some simple instructions of how to root it, I'd be grateful too.
If you think neither would work, and have something else in mind, Im open to your suggestions.
Much Regards,
Y
You can only use safestrap for the recovery. See in the general forum index, all things at&t....
You can't flash cm, only touch wiz based roms
Sent from my Nexus 5 using XDA Free mobile app
jd1639 said:
You can only use safestrap for the recovery. See in the general forum index, all things at&t....
You can't flash cm, only touch wiz based roms
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
I never got to installing or attempting to install CM.
Things took a turn for the unexpected after I tried installing CMW recovery.
Please reread my post
I've read it. You can't install cwm. That's what had messed up your device. The only recovery you can use is safestrap
Sent from my SAMSUNG-SGH-I957 using XDA Free mobile app
jd1639 said:
I've read it. You can't install cwm. That's what had messed up your device. The only recovery you can use is safestrap
Sent from my SAMSUNG-SGH-I957 using XDA Free mobile app
Click to expand...
Click to collapse
I see. Thanks for the info. Do you know what could be done to restore my device to stock? As of now I'm running a MK2 Android 4.3 on a NC1 4.2.2 device and the wifi/4g connection aren't working.
androidshmandroid said:
I see. Thanks for the info. Do you know what could be done to restore my device to stock? As of now I'm running a MK2 Android 4.3 on a NC1 4.2.2 device and the wifi/4g connection aren't working.
Click to expand...
Click to collapse
Did you look for the thread I pointed you to? In the general forum index, all things at&t... You're going to want to start there. That'll link you to this
http://forum.xda-developers.com/showthread.php?p=49687770
Sent from my SAMSUNG-SGH-I957 using XDA Free mobile app
Since your bootloader is already locked, you might as well Odin to stock. Odin to NB1 then use stock recovery to flash the NC1 update from a zip file on a microSD.
Part of the problem is that the NC1 is not 4.2.2 like you listed, but 4.4.2. That's the update you applied that started the sordid tale. When you were on 4.2.2, with bootloader MD<something>, you could have flashed CM or whatever, because you would be able to have TWRP or CWM recovery. When Samsung pushed out a 4.3 update (MK2 I believe) all the unlocked bootloader fun was over, probably permanently for this phone.
When you flashed MK2 firmware (4.3) onto the phone, parts of it don't work with the NC1 baseband, causing the problems you've seen. If you Odin NB1, then do the quick zip update from stock recovery to get all the way to NC1, you'll be back to stock and everything should work.
Once that's done, you can go through this process:
1. Root with Towelroot.
2. Install SuperSU to manage root access. (You might have to reboot, it's a 50%/50% shot... sometimes it hangs trying to disable Knox... no worries just reboot)
3. Install SafeStrap... it will create the safestrap recovery. You might need to install SELinux Mode Changer app (from play store) and set to permissive, to get Safestrap installed.
4. Boot to the SafeStrap recovery. Install any touchwiz rom. Only touchwiz compatible roms will work. I liked GoldenEye.
When installing touchwiz ROMs, typically one flashes the ROM, then SuperSU, then the NC1 modules, then the ATT BuildProp/APN file. Sounds complex but goes quickly. Some roms have some of these things built in.
Good luck! I eventually decided I didn't like the ATT Samsung restrictions of the locked boot loader, and bought a T-Mobile M919 variant of the S4. Unlocked boot loader. Woo hoo. And works fine on ATT.
Marc
Hi guys,
I recently got my s4 and found out it had a locked bootloader, boo. After a lot of research I was able to get it to install safestrap with Imperium rom. I also had to change my modem and went through the steps to changing it like 3 times and ended up on NJ4. I was previously on MF3 and had great signal but after all these changes and going to NJ4, it seems my signal has gotten worse. I want to know if I can change my modem on the fly with a zip or something faster through safestrap or do I have to go through all the odin steps again in order to change? Its a lot of damn work and very time consuming, so I thought I would ask before doing. I do not think I can even go back to MF3, right? I followed these steps: http://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642
Thanks for any help,
Jose
You can flash a modem zip with safestrap. See rockrat's modem thread in the general forum.
Sent from my Nexus 9 using XDA Free mobile app
jd1639 said:
You can flash a modem zip with safestrap. See rockrat's modem thread in the general forum.
Sent from my Nexus 9 using XDA Free mobile app
Click to expand...
Click to collapse
Thanks for the info. I never go to the general thread but I guess I should start. Lol