[Q] specifics about my s4: which recovery and base do i have? - Verizon Samsung Galaxy S 4

I'm pretty familiar with flashing with odin, using cwm recovery on the droid charge.
I'm a total noob for the s4 though.
i'm looking at http://forum.xda-developers.com/showthread.php?t=2301724&highlight=+odin+
I'm concerned with the line:
This Rom will run on any Verizon Galaxy S4 on the MDK Base with Root and loki Recovery or Galaxy S4 on the ME7 Base with Safestrap installed.
How can I determine what base i have and which parts of said sentence are referring to modded parts and stock parts?
Are "Base" and "Baseband version" the same thing?

Your device is on me7 base. That means you will have to root and use safestrap to use custom roms. There is a thread i development forum about rooting me7 and loading safestrap. Good luck and read lots before flashing anything and follow directions exactly.
Sent from my SCH-I545 using xda app-developers app

jaminallenwrench said:
I'm pretty familiar with flashing with odin, using cwm recovery on the droid charge.
I'm a total noob for the s4 though.
i'm looking at http://forum.xda-developers.com/showthread.php?t=2301724&highlight=+odin+
I'm concerned with the line:
This Rom will run on any Verizon Galaxy S4 on the MDK Base with Root and loki Recovery or Galaxy S4 on the ME7 Base with Safestrap installed.
How can I determine what base i have and which parts of said sentence are referring to modded parts and stock parts?
Are "Base" and "Baseband version" the same thing?
Click to expand...
Click to collapse
The "Build Number" is what you're concerned about. For your phone, the build number is VRUEMJ7, which means that there's no (trustworthy) program that'll root that. You're stuck with stock for now.

k1mu said:
The "Build Number" is what you're concerned about. For your phone, the build number is VRUEMJ7, which means that there's no (trustworthy) program that'll root that. You're stuck with stock for now.
Click to expand...
Click to collapse
What he said.
In a nutshell, OP, you are hosed, for now at least.

tech_head said:
What he said.
In a nutshell, OP, you are hosed, for now at least.
Click to expand...
Click to collapse
I have root already.
I should have clarified that originally.
I obtained root access before I ota updated to my current build.
I'm doing some more reading now. Maybe I will actually be able to safestrap this thing.

jaminallenwrench said:
I have root already.
I should have clarified that originally.
I obtained root access before I ota updated to my current build.
I'm doing some more reading now. Maybe I will actually be able to safestrap this thing.
Click to expand...
Click to collapse
As of now, Safestrap is not compatible with MJ7.

riker147 said:
As of now, Safestrap is not compatible with MJ7.
Click to expand...
Click to collapse
yeah, i just learned that.
i suppose i can't unlock my bootloader and force an older build flash in, can I?
I have root but stupid samsung policy keeps stopping 'protected areas' from being modified.

jaminallenwrench said:
yeah, i just learned that.
i suppose i can't unlock my bootloader and force an older build flash in, can I?
I have root but stupid samsung policy keeps stopping 'protected areas' from being modified.
Click to expand...
Click to collapse
No. Sorry. Once you update, there's no going back.

riker147 said:
No. Sorry. Once you update, there's no going back.
Click to expand...
Click to collapse
figures.
Knew I shouldn't have ota'd this morning.
oh well.
i'm sure it wont be long before a workaround finds its way out, anyway.
I wish I had more time and resources to mess around with it. I'm pretty sure I could figure out a way to get around this.
Thanks again.

Related

[Q] Downgrading from ME7 to MDK?

Is this downgrading from ME7 to MDK possible? If so please guide me in the right direction.
Its not possible... Once you take the update theres no going back...
Sent from my SCH-I545 using xda premium
So I am new to the s4 and rooting. I really want to install the Hyperdrive ROM. I have been researching and researching what to do and I think i have found my answer for now and im not happy about it.
From what i gathered, since i installed the update and I am now on ME7, there is no root method bc they locked the phone down. Is this correct?
hondabomdc5 said:
So I am new to the s4 and rooting. I really want to install the Hyperdrive ROM. I have been researching and researching what to do and I think i have found my answer for now and im not happy about it.
From what i gathered, since i installed the update and I am now on ME7, there is no root method bc they locked the phone down. Is this correct?
Click to expand...
Click to collapse
Use the search button...this has been posted about a 1000 times...but yes you can root it but no custom recovery.
hondabomdc5 said:
So I am new to the s4 and rooting. I really want to install the Hyperdrive ROM. I have been researching and researching what to do and I think i have found my answer for now and im not happy about it.
From what i gathered, since i installed the update and I am now on ME7, there is no root method bc they locked the phone down. Is this correct?
Click to expand...
Click to collapse
You can root, but cant install custom recoveries or roms.
bfmetcalf said:
You can root, but cant install custom recoveries or roms.
Click to expand...
Click to collapse
Thanks for being kind and thanks for the info. I did state that I was new and have been looking. I could have started a whole new thread but instead asked the question in here. I do want to install the Hyperdrive rom but since with ME7 you cant install roms...looks like i wont be rooting until somebody gets this figured out. Again, thanks for being cool and answering my question.
y can't we just odin back to mdk?
Stauf99 said:
y can't we just odin back to mdk?
Click to expand...
Click to collapse
because of the bootloader will only allow signed packages to be installed on the phone and checks against older firmware and will not allow it. Unless you have the signed key you ain't flashing anything unless we find a workaround.
magneticzero said:
Use the search button...this has been posted about a 1000 times...but yes you can root it but no custom recovery.
Click to expand...
Click to collapse
So why is there ROMs for the ME7 build if they can't be flashed?
This [email protected] sucks!
So, I'm stuck on ME7 as well (32GB S4, otherwise I'd just go down to the store and swap it, complaining about something -- seems they don't stock them at any local corporate stores).
I'm coming from a Samsung Galaxy Nexus, and we have OMAP-Flash, which is like a low-level PROM flashing tool from the Samsung R&D team, and I could fix even a DEAD, or bricked phone with that. Is there something like that here to get back the original bootloader? I cant believe we're stuck on this crap... How 'bout a 2nd-init like my Droid-x days, or something slick like SafeStrap on the RAZR family?
...Just thinkin' "out loud".
IMGetwired said:
So, I'm stuck on ME7 as well (32GB S4, otherwise I'd just go down to the store and swap it, complaining about something -- seems they don't stock them at any local corporate stores).
I'm coming from a Samsung Galaxy Nexus, and we have OMAP-Flash, which is like a low-level PROM flashing tool from the Samsung R&D team, and I could fix even a DEAD, or bricked phone with that. Is there something like that here to get back the original bootloader? I cant believe we're stuck on this crap... How 'bout a 2nd-init like my Droid-x days, or something slick like SafeStrap on the RAZR family?
...Just thinkin' "out loud".
Click to expand...
Click to collapse
Short answer is 'no' - you're currently stuck with root as your best option. Hopefully this will change in the not-too-distant future.
Sent from my SCH-I545 using xda app-developers app
Yeah, this does suck.
Seems like we need someone to pick up the Dragonboard 8074 development kit to help us figure this out...even then, I'm sure Samsung has so many mods in there it'd be nuts to reverse engineer... Ugh, I'm so impatient! :silly:
Slimfast35 said:
So why is there ROMs for the ME7 build if they can't be flashed?
Click to expand...
Click to collapse
Because there for people that didn't get robbed by Samsung and update through the evil over the air update lol
Slimfast35 said:
So why is there ROMs for the ME7 build if they can't be flashed?
Click to expand...
Click to collapse
You're not quite understanding what a rom is and is not. There is no such thing as a rom for ME7. There are roms that use the ME7 base. They are flashable only by those who have the MDK bootloader. When a build number is listed for a rom, it is the build that the rom is based from.
Sent from my SCH-I545 using Tapatalk 4
Slimfast35 said:
So why is there ROMs for the ME7 build if they can't be flashed?
Click to expand...
Click to collapse
The ROM's that the devs based on MDK have been updated with the ME7 code just like any good developer does. But the bootloader those users have is still from their MDK (original) install. Once you go ME7 you can never go back, downgrade, crossgrade or get beyond the bootloader, for now anyways. Someone will find a way.
Nm

[Q] Preferred Root Method?

Been reading various threads and wondering if there is a preferred method for rooting S4. If so, is it based on ability the unroot it later? I am a noob to phone rooting...having only (but successfully) rooted my Nook Tablet a long time ago. I want to make sure I choose the "best practice" method to minimize my risk of borking it. I am on verizon and have
SCH-1545
Build: JDQ39.1545VRUAME7
As for the specifics, is it assumed once I format the SD card to exfat that it runs from and remains in the phone itself or can it be repurposed?
http://forum.xda-developers.com/showthread.php?t=2380325
This is for root. With ME7 you can not use a custom recovery just as a FYI. But safestrap recovery works with ME7. You can find that also in the android Dev section.
wedmiston said:
Been reading various threads and wondering if there is a preferred method for rooting S4. If so, is it based on ability the unroot it later? I am a noob to phone rooting...having only (but successfully) rooted my Nook Tablet a long time ago. I want to make sure I choose the "best practice" method to minimize my risk of borking it. I am on verizon and have
SCH-1545
Build: JDQ39.1545VRUAME7
As for the specifics, is it assumed once I format the SD card to exfat that it runs from and remains in the phone itself or can it be repurposed?
Click to expand...
Click to collapse
Each firmware version has its own method, and theres only 1 for each. Since your on me7 you have to use the .pwn method and once your rooted you can reformat your card/delete the files that were used.
Hit thanks if I helped you out. Doing a little bit of reading goes a long way. Sent via tapatalk. now Free
I have also noticed a number of people wanting to go back to stock. Is this because root is unstable or has issues? Is there a pretty foolproof method for going back (my phone is only 3 months into my renewed VZ contract so unlike my Nook, I may need support at some point)
wedmiston said:
I have also noticed a number of people wanting to go back to stock. Is this because root is unstable or has issues? Is there a pretty foolproof method for going back (my phone is only 3 months into my renewed VZ contract so unlike my Nook, I may need support at some point)
Click to expand...
Click to collapse
Its absolutely stable. Most realize its not for them or they return their phones. Odin in my.opinion is the easiest way to remove root.
Hit thanks if I helped you out. Doing a little bit of reading goes a long way. Sent via tapatalk. now Free
So does this NOT apply to my phone since it cites a different model?
\http://forum.xda-developers.com/showthread.php?t=2465713
Travisdroidx2 said:
http://forum.xda-developers.com/showthread.php?t=2380325
This is for root. With ME7 you can not use a custom recovery just as a FYI. But safestrap recovery works with ME7. You can find that also in the android Dev section.
Click to expand...
Click to collapse
wedmiston said:
So does this NOT apply to my phone since it cites a different model?
\http://forum.xda-developers.com/showthread.php?t=2465713
Click to expand...
Click to collapse
That root method is for Verizon S4 on ME7 firmware. If that is not you then I would not try it myself.
Could qualify as the dumb question of the day, but I have Build: JDQ39.1545VRUAME7...is this considered ME7 or are there different flavors?
Travisdroidx2 said:
That root method is for Verizon S4 on ME7 firmware. If that is not you then I would not try it myself.
Click to expand...
Click to collapse
wedmiston said:
Could qualify as the dumb question of the day, but I have Build: JDQ39.1545VRUAME7...is this considered ME7 or are there different flavors?
Click to expand...
Click to collapse
Only one ME7 for Verizon you are good.
Given that this was profiled as a "cover story" on the XDA home page is this the latest and greatest and is it different than
http://forum.xda-developers.com/showthread.php?t=2380325
Just want to clarify before i proceed
Travisdroidx2 said:
Only one ME7 for Verizon you are good.
Click to expand...
Click to collapse
wedmiston said:
Given that this was profiled as a "cover story" on the XDA home page is this the latest and greatest and is it different than
http://forum.xda-developers.com/showthread.php?t=2380325
Just want to clarify before i proceed
Click to expand...
Click to collapse
That is the same link I sent you in post 2. That is the root method for you on ME7.
OK, then maybe my question is, how is that different from this?
http://www.xda-developers.com/android/official-android-4-3-i9505xxuemj5-firmware-for-the-galaxy-s-4/
Travisdroidx2 said:
That is the same link I sent you in post 2. That is the root method for you on ME7.
Click to expand...
Click to collapse
wedmiston said:
OK, then maybe my question is, how is that different from this?
http://www.xda-developers.com/android/official-android-4-3-i9505xxuemj5-firmware-for-the-galaxy-s-4/
Click to expand...
Click to collapse
Thats for a different model of s4 and is android 4.3 while me7 is 4.2.2
Hit thanks if I helped you out. Doing a little bit of reading goes a long way. Sent via tapatalk. now Free
wedmiston said:
OK, then maybe my question is, how is that different from this?
http://www.xda-developers.com/android/official-android-4-3-i9505xxuemj5-firmware-for-the-galaxy-s-4/
Click to expand...
Click to collapse
Because that is not for Verizon. Or ME7. Your build version shows ME7. The root method is in the Verizon thread for ME7. It is pretty clear.
Affirmative to both of you and very much appreciated!
as long as I have two guys smarter than me, one more...how is this different
http://forum.xda-developers.com/showthread.php?t=2252248
wedmiston said:
as long as I have two guys smarter than me, one more...how is this different
http://forum.xda-developers.com/showthread.php?t=2252248
Click to expand...
Click to collapse
Thats motochopper I believe and its for mdk verizon versions.
Hit thanks if I helped you out. Doing a little bit of reading goes a long way. Sent via tapatalk. now Free
and I know I have to block OTA updates...want to get this in place immediately so what is the best way to do this?
wedmiston said:
and I know I have to block OTA updates...want to get this in place immediately so what is the best way to do this?
Click to expand...
Click to collapse
Put the phone in airplane mode. Freeze or delete SDM.apk
Confirm successful root. Also froze SDM.01 file via TB Pro - am I good to go? Any other files need attention?
Travisdroidx2 said:
Put the phone in airplane mode. Freeze or delete SDM.apk
Click to expand...
Click to collapse

Please help a newbie

Ok, a little info on me. I have had an iPhone since 2007. I decided to buy a used G S4 to see if I would like it. So far I like it a lot but need help getting it just right.
I am trying to install custom roms on my device. I want to try CM.10 first. So far I have achieved root aaccess, and installed gooManager.
The problem is that when I install a custom recovery script so I can have a custom recovery the phone locks up. What could I be doing wrong? I am sure this has been covered a hundred times but there is so much info on here its overwhelming to someone new to android. Thanks to everyone for the great work and contributions s already made.
Try odin to flash!
iPhone*convert said:
Ok, a little info on me. I have had an iPhone since 2007. I decided to buy a used G S4 to see if I would like it. So far I like it a lot but need help getting it just right.
I am trying to install custom roms on my device. I want to try CM.10 first. So far I have achieved root aaccess, and installed gooManager.
The problem is that when I install a custom recovery script so I can have a custom recovery the phone locks up. What could I be doing wrong? I am sure this has been covered a hundred times but there is so much info on here its overwhelming to someone new to android. Thanks to everyone for the great work and contributions s already made.
Click to expand...
Click to collapse
when i installed my custom recovery i used cwm recovery (my preference) and used odin to flash it. its not as easy but its more reliable to me just look up a tutorial on how to flash custom recovery on odin. There are many vids on youtube
mylifeandroid said:
when i installed my custom recovery i used cwm recovery (my preference) and used odin to flash it. its not as easy but its more reliable to me just look up a tutorial on how to flash custom recovery on odin. There are many vids on youtube
Click to expand...
Click to collapse
I watched all of the videos. Do I have a locked boot loader? Does that keep me from installing open recovery script? If so do I need a device with an older baseband in order to root, install custom recovery, and run custom roms?
I have a SCH-I545 running 4.3 with an mk2 baseband.
Yes, your bootloader is locked and currently there is no way to unlock it. Safestrap is your only option for ROMs now. Start with reading the OP.
http://forum.xda-developers.com/showthread.php?t=2441441
Sent from my SCH-I545 using Tapatalk
How do I find an older gs4 with an unlocked bootloader? How will I know when I find one? What baseband version should I be looking for?
iPhone*convert said:
How do I find an older gs4 with an unlocked bootloader? How will I know when I find one? What baseband version should I be looking for?
Click to expand...
Click to collapse
Where your phone says mk2 the other will say mdk. . As far as finding one people sell them on ebay
iPhone*convert said:
How do I find an older gs4 with an unlocked bootloader? How will I know when I find one? What baseband version should I be looking for?
Click to expand...
Click to collapse
Check out www.swappa.com
People have em up for sale, just look for the last three letters of the build (or baseband I suppose) to be MDK. Anything newer than that is locked down.
Sent from my SCH-I545 using Tapatalk
iPhone*convert said:
How do I find an older gs4 with an unlocked bootloader? How will I know when I find one? What baseband version should I be looking for?
Click to expand...
Click to collapse
Information is easily available in these forums concerning bootloaders and rooting and recoveries....with you phone your only option is safestrap and just one or 2 roms are available..
look before you jump
Nobody posts the build number in their adds on ebay or that swappers site. I'm messaging them all individually haha. Lmfao why didn't I read about this more before buying this boot locked pos lol.
Me7 and mj7 are worthless right?
iPhone*convert said:
Me7 and mj7 are worthless right?
Click to expand...
Click to collapse
I will be honest this is the first phone that i have ever been satisfied with rooted debloated stock but I am very greatful my flashing itch is able to be somewhat scratched with safestrap. The above builds aren't worthless but I guess that all depends on your point of view and what your wanting to do with your device.
iPhone*convert said:
Me7 and mj7 are worthless right?
Click to expand...
Click to collapse
don't understand the statement?
the stock roms run extremely well and with root you can debloat pretty easily. S4 phone is a superior device to most anything else out there at this moment whether you mod it or not
Hey your in luck there is a guy selling his mdk s4 for 330 on the general thread.

[Q] Updating MDK and ME7

I asked a similar question back in October, but fell out of the loop again and didn't want to necro an old post. I just want to verify that the information I got back then is still relavent.
Is installing custom ROMs still the best way to bring my MDK S4 up to the current version? If so, what should I be looking for in a ROM title to tell me that it's just a stock ROM that gives the same experience as the OTA? Someone mentioned Deodex'd in my last post, but I have no idea what that means or if it's what I should be looking for.
And for an S4 that came stock with ME7? Should my girlfriend (with an ME7 update) just take the newest OTA and root that, or is there a benefit to sticking with ME7 and installing a ROM? If the answer is to go with a ROM then she'll want the stock new OTA experience as well for now, are there any ME7 ROMs available that can do that?
Thanks again guys!
Don't touch your MDK S4. Leave it on MDK with Loki. It's practically an unlocked bootloader with actual TWRP and CWM. You can still install 4.3 TouchWiz stock ROMs on it because you can change the kernel. Plus you can run AOSP ROMs, which is awesome.
Reonar_Dauth said:
I asked a similar question back in October, but fell out of the loop again and didn't want to necro an old post. I just want to verify that the information I got back then is still relavent.
Is installing custom ROMs still the best way to bring my MDK S4 up to the current version? If so, what should I be looking for in a ROM title to tell me that it's just a stock ROM that gives the same experience as the OTA? Someone mentioned Deodex'd in my last post, but I have no idea what that means or if it's what I should be looking for.
And for an S4 that came stock with ME7? Should my girlfriend (with an ME7 update) just take the newest OTA and root that, or is there a benefit to sticking with ME7 and installing a ROM? If the answer is to go with a ROM then she'll want the stock new OTA experience as well for now, are there any ME7 ROMs available that can do that?
Thanks again guys!
Click to expand...
Click to collapse
You're girls me7 s4 might as well update to mj7 or mk2 (4.3) as then she'll still be using Safestrap. Mostly everyone is running Hyperdrive anyways. Great performance and battery life with that. Update it, throw Safestrap 3.71 on there then Hyperdrive 12....pretty much bug free.
As far as you're MDK phone just grab whatever AOSP 4.3 or 4.4 ROM you like. You're lucky to have that phone!!
Sent from my SCH-I545 using XDA Premium 4 mobile app
I have ME7 on my phone and decided to update to be compatible with hyperdrive.
I started the installation like 6 hours ago; is it supposed to take this long?
I had it rooted and got rid of all the bloatware from Verizon using titanium. Would that have something to do with it? Otherwise, I don't know what's going on. Thank you, and I apologize if this was addressed in any other thread.
TheDarkAbed said:
I have ME7 on my phone and decided to update to be compatible with hyperdrive.
I started the installation like 6 hours ago; is it supposed to take this long?
I had it rooted and got rid of all the bloatware from Verizon using titanium. Would that have something to do with it? Otherwise, I don't know what's going on. Thank you, and I apologize if this was addressed in any other thread.
Click to expand...
Click to collapse
No its not supposed to take that long. So you're trying to take the ota from me7 you're saying right? You may have to Odin if that doesn't work for you. Sometimes unfreezing and removing mods just doesn't do it
Sent from my SCH-I545 using XDA Premium 4 mobile app
Mistertac said:
No its not supposed to take that long. So you're trying to take the ota from me7 you're saying right? You may have to Odin if that doesn't work for you. Sometimes unfreezing and removing mods just doesn't do it
Sent from my SCH-I545 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Sorry. Can you link me to where I can find how to do that
Thanks again
TheDarkAbed said:
Sorry. Can you link me to where I can find how to do that
Thanks again
Click to expand...
Click to collapse
Several youtube videos on Odin process
safestrap enabled, Hyperdrive driven
decaturbob said:
Several youtube videos on Odin process
safestrap enabled, Hyperdrive driven
Click to expand...
Click to collapse
I went on youtube, but all of them say that they are for I9505. I'm not sure where I'm supposed to look, but my model number says SCH-I545. Does that mean I'm unable to use the process?
Sorry again for asking so many questions.
TheDarkAbed said:
I went on youtube, but all of them say that they are for I9505. I'm not sure where I'm supposed to look, but my model number says SCH-I545. Does that mean I'm unable to use the process?
Sorry again for asking so many questions.
Click to expand...
Click to collapse
Process is similar. ..you just need to have correct image file.
safestrap enabled, Hyperdrive driven
TheDarkAbed said:
I went on youtube, but all of them say that they are for I9505. I'm not sure where I'm supposed to look, but my model number says SCH-I545. Does that mean I'm unable to use the process?
Sorry again for asking so many questions.
Click to expand...
Click to collapse
Same process, but get the image for your i545 from the Android Development forum for this phone.
is there any benefit to keeping ME7 or just update to most recent update? thanks for the help.

Galaxy S4 Bootloader

I'm currently on a Galaxy S3, but I have an S4 coming in on Friday.
I saw a thread for rooting the S4, but do I need to unlock the bootloader like I did in the S3 to install a rom?
Basically, where is the thread that has all the info I need to root, unlock, and install a custom recovery for the S4?
I have one for the S3, but can't find it for the S4.
GlitchMob said:
I'm currently on a Galaxy S3, but I have an S4 coming in on Friday.
I saw a thread for rooting the S4, but do I need to unlock the bootloader like I did in the S3 to install a rom?
Basically, where is the thread that has all the info I need to root, unlock, and install a custom recovery for the S4?
I have one for the S3, but can't find it for the S4.
Click to expand...
Click to collapse
you cant find thread? How hard did you look? There is a stickie can't be missed in the general section.
BTW, the bootloader is locked for all versions of firmware since mdk.
only option is safetrap.
decaturbob said:
you cant find thread? How hard did you look? There is a stickie can't be missed in the general section.
BTW, the bootloader is locked for all versions of firmware since mdk.
only option is safetrap.
Click to expand...
Click to collapse
Okay maybe my understanding on the purpose of unlocking the bootloader is incorrect.
I thought the bootloader has to be unlocked in order to install a custom rom?
On my S3 if the bootloader wasn't unlocked the phone would brick.
Safestrap is a custom recovery so how is that relevant to bootloader? I can't seem to draw the connection.
Thanks!
GlitchMob said:
Okay maybe my understanding on the purpose of unlocking the bootloader is incorrect.
I thought the bootloader has to be unlocked in order to install a custom rom?
On my S3 if the bootloader wasn't unlocked the phone would brick.
Safestrap is a custom recovery so how is that relevant to bootloader? I can't seem to draw the connection.
Thanks!
Click to expand...
Click to collapse
plenty of threads here to read to educate yourself.
S4 bootloader is locked since mdk firmware. MDK had an exploit that Loki process allowed custom recovery
safestrap uses an exploit to work around it so its the only custom recovery for the locked bootloader.
Each subsequent firmware release locks the bootloader and exploits down further. Anyone taking the next round of kit kat OTA's will likely loose root as well.
GlitchMob said:
I'm currently on a Galaxy S3, but I have an S4 coming in on Friday.
I saw a thread for rooting the S4, but do I need to unlock the bootloader like I did in the S3 to install a rom?
Basically, where is the thread that has all the info I need to root, unlock, and install a custom recovery for the S4?
I have one for the S3, but can't find it for the S4.
Click to expand...
Click to collapse
More then likely the device you get will come with the new baseband MJ7 or MK2. You need to check this before you start messing with anything. That said the bootloader is locked up tight and you will be very limited with what you can do with it. You can root, and install safestrap(a custom recovery by Hashcode that bypasses the bootloader). This will allow you to install certain touchwiz based roms but you have to be sure they are compatible with safestrap.
Root for 4.3 baseband:
http://forum.xda-developers.com/showthread.php?t=2565758
Safestrap:
http://forum.xda-developers.com/showthread.php?t=2441441
Both these links are in the android devlopment section. It is very difficult with this device because there are multiple root methods and recovery methods depending on baseband version. If by some chance you get the phone and the baseband is MDK, DO NOT UPDATE!!!! This will allow you to install loki'ed recovery and flash any rom you want. Chances are that won"t happen though. Good luck
decaturbob said:
you cant find thread? How hard did you look? There is a stickie can't be missed in the general section.
BTW, the bootloader is locked for all versions of firmware since mdk.
only option is safetrap.
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decaturbob said:
plenty of threads here to read to educate yourself.
S4 bootloader is locked since mdk firmware. MDK had an exploit that Loki process allowed custom recovery
safestrap uses an exploit to work around it so its the only custom recovery for the locked bootloader.
Each subsequent firmware release locks the bootloader and exploits down further. Anyone taking the next round of kit kat OTA's will likely loose root as well.
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Click to collapse
I understand that I need to look into it, but the way things are organized is different. I've been on an S3 for almost two years now and the forums in the S4 are just overwhelming with information that is scattered. Here is an example of what I was hoping for when I came to the S4 section.
http://forum.xda-developers.com/showthread.php?t=1762709
onemeila said:
More then likely the device you get will come with the new baseband MJ7 or MK2. You need to check this before you start messing with anything. That said the bootloader is locked up tight and you will be very limited with what you can do with it. You can root, and install safestrap(a custom recovery by Hashcode that bypasses the bootloader). This will allow you to install certain touchwiz based roms but you have to be sure they are compatible with safestrap.
Root for 4.3 baseband:
http://forum.xda-developers.com/showthread.php?t=2565758
Safestrap:
http://forum.xda-developers.com/showthread.php?t=2441441
Both these links are in the android devlopment section. It is very difficult with this device because there are multiple root methods and recovery methods depending on baseband version. If by some chance you get the phone and the baseband is MDK, DO NOT UPDATE!!!! This will allow you to install loki'ed recovery and flash any rom you want. Chances are that won"t happen though. Good luck
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Click to collapse
Thank you. This is the response I was looking for. As you said there are many stipulations with each baseband. This is something I am not used to coming for an S3, which is far simpler to deal with. Thanks again!
GlitchMob said:
Thank you. This is the response I was looking for. As you said there are many stipulations with each baseband. This is something I am not used to coming for an S3, which is far simpler to deal with. Thanks again!
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Click to collapse
The difference isn't in the baseband, it's in the bootloader. You can run a newer baseband than your bootloader, for example, especially if you have the MDK bootloader.
Since you're starting from stock, the baseband and the bootloader revisions are the same and can be found from Settings/More/About phone.
Before you flash anything, please read the what you need to know thread in the General section. Also, there's my thread in this forum.
The S4 is more complicated than the S3 largely because Samsung has really locked it down much more effectively than the S3. Consequently, there's lots of ways to go wrong. Reading first can save you a lot of grief.
k1mu said:
The difference isn't in the baseband, it's in the bootloader. You can run a newer baseband than your bootloader, for example, especially if you have the MDK bootloader.
Since you're starting from stock, the baseband and the bootloader revisions are the same and can be found from Settings/More/About phone.
Before you flash anything, please read the what you need to know thread in the General section. Also, there's my thread in this forum.
The S4 is more complicated than the S3 largely because Samsung has really locked it down much more effectively than the S3. Consequently, there's lots of ways to go wrong. Reading first can save you a lot of grief.
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Click to collapse
One more question. Is there a way to flash the s4 back to stock? I'll find the info on how, but going into the whole rooting and coming phase it would be nice to know that I could flash back to stock with odin. As I have with my s3.
GlitchMob said:
One more question. Is there a way to flash the s4 back to stock? I'll find the info on how, but going into the whole rooting and coming phase it would be nice to know that I could flash back to stock with odin. As I have with my s3.
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Click to collapse
Yes. Read the second link in my reply above - it tells you how to identify what build you're on and has links to the downloadable Odin images for each build.
k1mu said:
Yes. Read the second link in my reply above - it tells you how to identify what build you're on and has links to the downloadable Odin images for each build.
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Thanks for your help. Turns out I'm on MJ7. I'm going to let this puppy charge while I hit the gym. I'll root it and see what rom I can install later tonight. Thanks again!! :victory:
GlitchMob said:
Thanks for your help. Turns out I'm on MJ7. I'm going to let this puppy charge while I hit the gym. I'll root it and see what rom I can install later tonight. Thanks again!! :victory:
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Click to collapse
Mind as well update to mk2. You can do the same as mj7 but are most up to date. Just my 2 pennies. Btw I'm on bonestock 2.1 in SS romslot 1.
Sent from my SCH-I545 using xda app-developers app
Slowbalt said:
Mind as well update to mk2. You can do the same as mj7 but are most up to date. Just my 2 pennies. Btw I'm on bonestock 2.1 in SS romslot 1.
Sent from my SCH-I545 using xda app-developers app
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Click to collapse
Is there a noticeable difference? If its the same, why upgrade?
I am coming from a similar situation as you. I cracked my screen on my S3 and Asurion replaced it with an S4, which I received on Monday. I thought that I was going to be able to load SlimKat and pick up where I left off, but no.
The posts that k1mu linked are a great starting point. A few of my thoughts that I came to realize this week. These are my ways of looking at it and may not be totally correct.
The bootloader is locked and there isn't a total unlock (yet). Safestrap allows you to crack the door open a little and reach your arm in to grab a few things.
You will need to stick with ROMs that work with the TouchWiz kernel. The post that k1mu referenced has a link to compatible ROMs. You will not be able to load SlimKat, CM, Carbon, etc. Basically any ROM you choose will have TW underneath. Some of the ROMs will try to look like an ASOP, but it is still a TW base.
Safestrap will allow you to create ROM slots where you can try out the ROM to see if you like it. I am still trying to decide what I want to use. Currently I have Hyperdrive as the leader. Everything that I do continues to work. The Eclipse ROM looks good but it is not quite there yet, but he is working on a build in the next couple days. Here is a link to their website with more up to date status. Eclipse . I also looked at the Foxhound ROM and it is good also. For me support and future upgrades are the most important. I am starting to think that i will embrace TW instead of trying to cover it up and will go with Hyperdrive.
If you use TiBu, read this post, especially with Hyperdrive http://forum.xda-developers.com/showthread.php?t=2653044.
The other realization that hit me was that while Safestrap can create partitions for loading different ROMs, each one is restricted to a maximum of a 3GB /data partition. When I tried to restore all of my apps this was quickly used up. It isn't supported by Safestrap to flash to the stock location, but it can and has been done. Since Safestrap isn't doing a flash there are more risks and I think that this should probably be kept to a minimum. This is where you want to test all the candidate ROMs first and then decide which one to use and then flash to the stock location. Obviously this could cause problems with the phone and would use ODIN as a fallback. Unless something get totally hosed and then you are out of a phone.
One thing that I realized a long time ago is that when you change devices you may want to do everything exactly the way it was before. On the phone or even when looking for information. But in most cases it is better to change your processes or work flow to work with the new device than it is to change the device to work in your previous work flow.

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