Security related questions - Verizon Galaxy S 5 Q&A, Help & Troubleshooting

Hey!
I have a question. I have a samsung galaxy s5 that I've used on Verizon for the past 2/3 yrs. but have since changed to Total Wireless. I did a factory reset and the phone works fine, but I started wondering if it updated still (thinking the updates might have come from verizon, and I'm not with them anymore).
I'm kind of a IT nerd in the PC world, but to be honest, I know nothing about phones.. so, my obvious question is what options are there as far as better, more secured ROM's (those are the os's, right?) that could be installed? Something without all the verizon crap and bloatware? I've seen different places that say its not possible, some say it can be done, but most of the threads are pretty old (I understand its an old phone, so I'm not totally surprised)
This thread --> https://forum.xda-developers.com/verizon-galaxy-s5/help/how-to-unlock-apn-options-factory-t3525812 is probably the closest to my questions, but I'm confused by the "bok3 firmware or pb1 firmwares " comment. Where do I find that?

Flash the latest firmware for the most up to date linux security patches.
I do not use this device anymore but the higher up the letters are in the alphabet the newer the package. When you update to latest all hopes of rooting are gone. Verizon crap and bloatware are going to have to stay unfortunately. You can always disable them.

Related

Will Non-Verizon Firmware Work?

Hey everyone -
Apologies if this has been asked before, but a simple search didn't turn up results. Verizon (surprise surprise) is already lagging behind on firmware updates. For those of us who are S-Off, unlocked, and on custom ROMs, is it possible to flash an updated firmware (such as 1.80.617.1) and still use our phones? Or are we stuck on Verizon's release cycle for firmware updates?
EDIT - I meant to post this in the Questions & Answers section, my apologies. If any mods want to move it, please feel free.
btonetbone said:
Hey everyone -
Apologies if this has been asked before, but a simple search didn't turn up results. Verizon (surprise surprise) is already lagging behind on firmware updates. For those of us who are S-Off, unlocked, and on custom ROMs, is it possible to flash an updated firmware (such as 1.80.617.1) and still use our phones? Or are we stuck on Verizon's release cycle for firmware updates?
EDIT - I meant to post this in the Questions & Answers section, my apologies. If any mods want to move it, please feel free.
Click to expand...
Click to collapse
we're stuck on verizon's firmware. i use viper and the software is updated to the latest release, just not using the eu/intl firmware.
btonetbone said:
Hey everyone -
Apologies if this has been asked before, but a simple search didn't turn up results. Verizon (surprise surprise) is already lagging behind on firmware updates. For those of us who are S-Off, unlocked, and on custom ROMs, is it possible to flash an updated firmware (such as 1.80.617.1) and still use our phones? Or are we stuck on Verizon's release cycle for firmware updates?
EDIT - I meant to post this in the Questions & Answers section, my apologies. If any mods want to move it, please feel free.
Click to expand...
Click to collapse
If you are on Verizon you should be using Verizon firmware. Just because a version number is different doesn't mean it's ahead. They are different forks tested and tweaked for entirely different networks.
Sent from my HTC6545LVW using Tapatalk
dottat said:
If you are on Verizon you should be using Verizon firmware. Just because a version number is different doesn't mean it's ahead. They are different forks tested and tweaked for entirely different networks.
Sent from my HTC6545LVW using Tapatalk
Click to expand...
Click to collapse
But does that hold true when flashing the Verizon radio behind the other firmware?(not challenging your statement here, just asking a variation of the OP question)
I think that is the main thing people want to know when this topic comes up. I've seen the question and information on it scattered in pieces across multiple threads, but never fully answered by being backed with a report by someone who did it.
So you don't think I am one of those that just sits back to let someone else do the work - I am willing to try such a thing by flashing the US unlocked or Europe FW followed by the VZW radio you pulled, but would need a little guidance in terms of how to provide feedback. Test signal before/after? I know from Viper thread loss of camera is something to watch out for. Any other specific items/parameters to check before/after? Since Viper just did a re-base, I have been searching and debating between those two FW anyway. First the Euro to match the ROM, then the US because they have the ROM flashing on all FW out at the moment.
camparks said:
But does that hold true when flashing the Verizon radio behind the other firmware?(not challenging your statement here, just asking a variation of the OP question)
I think that is the main thing people want to know when this topic comes up. I've seen the question and information on it scattered in pieces across multiple threads, but never fully answered by being backed with a report by someone who did it.
So you don't think I am one of those that just sits back to let someone else do the work - I am willing to try such a thing by flashing the US unlocked or Europe FW followed by the VZW radio you pulled, but would need a little guidance in terms of how to provide feedback. Test signal before/after? I know from Viper thread loss of camera is something to watch out for. Any other specific items/parameters to check before/after? Since Viper just did a re-base, I have been searching and debating between those two FW anyway. First the Euro to match the ROM, then the US because they have the ROM flashing on all FW out at the moment.
Click to expand...
Click to collapse
So here's the thing... you will see unlocked users who simply flashed the radio complain they often get stuck on 3g/1x. You will see the posts about the camera loss. You will see things about loss of volte. The firmware is always optimized for the rom/carrier for which it was written. They won't include vzw fixes in unlocked firmware since that phone isn't targeted for use on the vzw network.
Between the rom and the firmware it's really just a different fork altogether. They aren't mean to be used without each other as a dependency.
Euro firmware will likely have some odd wifi side effects for some folks as they use different bands over there.
dottat said:
So here's the thing... you will see unlocked users who simply flashed the radio complain they often get stuck on 3g/1x. You will see the posts about the camera loss. You will see things about loss of volte. The firmware is always optimized for the rom/carrier for which it was written. They won't include vzw fixes in unlocked firmware since that phone isn't targeted for use on the vzw network.
Between the rom and the firmware it's really just a different fork altogether. They aren't mean to be used without each other as a dependency.
Euro firmware will likely have some odd wifi side effects for some folks as they use different bands over there.
Click to expand...
Click to collapse
So can we back up just a bit to where I believe this all stems from - Is the HTC 10 truly a single-hardware phone? Therein, making all "variants" manifested only by which firmware is flashed? Is that true globally? If not, is that true for all in a particular "zone"(Europe, Asia, US, etc.)?
Ok, with the Euro FW the issues are apparent, given different standards not only for cellular, but also the camera and wi-fi vary from those here in the US. Even if one were to flash a US carrier radio, the camera and wi-fi issues could still pop up. Moving on from that consideration.
For US unlocked, there should be no standards issue, correct? Assuming hardware is the same for atleast all US carriers, what besides the radios would differ between carriers when not running stock ROMs?
Obviously there would be issues when on stock ROMs due to custom apps, features, etc. that would break not only when running different non-stock FW, but also when running one carrier's stock ROM on another carrier's network. All that is ill-advised and goes back to you only recommending stock FW.
Thanks for discussing this. I do not question your advise at all, I just want to explore the what and why of it all to put it all in one place. Thanks for humoring me and my questions!
camparks said:
So can we back up just a bit to where I believe this all stems from - Is the HTC 10 truly a single-hardware phone? Therein, making all "variants" manifested only by which firmware is flashed? Is that true globally? If not, is that true for all in a particular "zone"(Europe, Asia, US, etc.)?
Ok, with the Euro FW the issues are apparent, given different standards not only for cellular, but also the camera and wi-fi vary from those here in the US. Even if one were to flash a US carrier radio, the camera and wi-fi issues could still pop up. Moving on from that consideration.
For US unlocked, there should be no standards issue, correct? Assuming hardware is the same for atleast all US carriers, what besides the radios would differ between carriers when not running stock ROMs?
Obviously there would be issues when on stock ROMs due to custom apps, features, etc. that would break not only when running different non-stock FW, but also when running one carrier's stock ROM on another carrier's network. All that is ill-advised and goes back to you only recommending stock FW.
Thanks for discussing this. I do not question your advise at all, I just want to explore the what and why of it all to put it all in one place. Thanks for humoring me and my questions!
Click to expand...
Click to collapse
Hardware wise most are the same. And you are right about me recommending firmware that matches your carrier. That aside, my experience has been like this....
I have been asked a couple times to try to fully convert a phone from one carrier to another. On the 10, we know that unlocked<->verizon works and we thought it would since HTC gave them the same MID (different CIDs though). On the m9, I have attempted to fully convert a verizon m9 to an ATT model. The RUU flashes everything BUT tp and one or two other ones. It boots up fine (att death star and all)... but it will never boot to recovery and never load TWRP when flashed. There's something about the overall partition structure that makes it different.
On the rom/firmware front.... Verizon and HTC do very specific testing for firmware/OS releases. They do this not only to ensure optimal performance for the user, but also to make sure that the phone itself doesn't cause issues on the network itself. As the manager of an engineering team for a huge US based ISP, I can tell you that firmware of devices CAN and DOES impact the network stability from time to time. I'm not talking about capacity issues, I'm talking about your phone making a phone call and causing a network card back at the CO/Tower/ETC reset. It does happen.
Lastly, I measure things by what you gain. What would gain by flashing unlocked or EU firmware images onto a phone on the verizon network? An increase in number version? As much as I see people who change their aboot do so to avoid red text, it always surprised me to see a VZW phone with a third X.X.401.X number on their bootloader indicating non-vzw firmware. There's a new piece of fun around since the m9 and present on the 10. If you manage to get an aboot on your phone doesnt match your firmware and you reboot the phone you will be stuck in bootloader with no access to download/recovery and often OS. The only fix is to manually flash each firmware image / partition file by name manually and it must match the aboot for it to work. So that's another reason to not go and mix and match because to be honest... most people don't make it beyond the panic moment of that. That phone gets returned and added to the reasons verizon makes it more difficult going forward.
\
There's my 2 cents

About to switch to the VZW S7 Edge, have some questions regarding firmwares

I'm about to purchase a S7 Edge so I've been poking around these forums trying to figure if I should/if I can modify it once I get it. I'm no stranger to rooting, unlocking, and installing custom ROMs on my previous phones but I'm trying to keep things relatively stock this time around. However, I will definitely want to root and potentially unlock the bootloader. After poking around here I have some questions:
1. I'm seeing different firmwares being talked about all over the place. What exactly are these firmwares? Are they OTA updates from Verizon? These aren't full ROMs or software updates, right?
2. I know Samsung has said that M is coming for the S7, but I also know that it's probably going to take forever for Samsung to get it out, and then it's going to take forever and a day for Verizon to approve/mangle it how they see fit. So I'm wondering if you guys think there will be a quicker upgrade path to N for those of us who are able to tinker with out phones like this. I'm talking Samsung N, not something like CM14. Though I'm not entirely opposed to a stock-based firmware, we'll see how much TouchWiz wares on me.
Thanks for any help!
1. There are only two types, the Verizon firmware and the U (for Unlocked) firmware. You should know what Verizon's always have in their software, but the Unlocked is the international variant that's much cleaner but also lacks features like Wi-Fi calling and visual voicemail.
2. The S7 and S7 Edge already comes with Marshmallow out of the box, if that's what you're asking? And TouchWiz isn't that bad especially how much they've cleaned it up for this year.
GigaSPX said:
1. There are only two types, the Verizon firmware and the U (for Unlocked) firmware. You should know what Verizon's always have in their software, but the Unlocked is the international variant that's much cleaner but also lacks features like Wi-Fi calling and visual voicemail.
2. The S7 and S7 Edge already comes with Marshmallow out of the box, if that's what you're asking? And TouchWiz isn't that bad especially how much they've cleaned it up for this year.
Click to expand...
Click to collapse
Ok, thanks. And I actually meant Nougat, not Marshmallow.
Is the latest software still rootable?

[Q] Rooting Sprint's Galaxy S7

I haven't been active (posting or lurking) since the S4 days, so I'm a little out of touch. I've been scouring the forum (this one and others) all night, and given the KNOX changes, locked boot-loader, non-removable battery, etc., made to the Galaxy S Series, I'm a little uncertain about the current state of affairs.
Long story short, I dropped my phone today and shattered the display. Phone still works and all, but it's hard to see anything. I, like everyone pretty much I guess, am eligible for a free upgrade. (I already paid for my current [broken] phone, so no issues there. I already called and asked.) April, or longer given the confirmed delay, is a long way off to wait for the S8 (though I probably will), but if I were to get my S7 tonight, here's my question:
If I'm not interested in new ROMs or anything and just want to root my phone so I can have full control (mainly just to delete bloat, but also to edit some various system cfg files... it's okay--I'm a professional ), is that still doable on the the S7 without much hassle?
~Zach~ said:
I haven't been active (posting or lurking) since the S4 days, so I'm a little out of touch. I've been scouring the forum (this one and others) all night, and given the KNOX changes, locked boot-loader, non-removable battery, etc., made to the Galaxy S Series, I'm a little uncertain about the current state of affairs.
Long story short, I dropped my phone today and shattered the display. Phone still works and all, but it's hard to see anything. I, like everyone pretty much I guess, am eligible for a free upgrade. (I already paid for my current [broken] phone, so no issues there. I already called and asked.) April, or longer given the confirmed delay, is a long way off to wait for the S8 (though I probably will), but if I were to get my S7 tonight, here's my question:
If I'm not interested in new ROMs or anything and just want to root my phone so I can have full control (mainly just to delete bloat, but also to edit some various system cfg files... it's okay--I'm a professional ), is that still doable on the the S7 without much hassle?
Click to expand...
Click to collapse
You can root, but it's more difficult on Bootloader 4 to root and keeo activation. It's all luck of the draw on whether the phone you get will come with a firmware on a earlier firmware. If you're on the APH firmware or below I believe, you can downgrade to APE1 and root pretty easily while keeping activation. I'd personally recommend it only if you want to root and are fairly experienced. Glad the first device I rooted was an S3 and not this.
YMNDLZ said:
You can root, but it's more difficult on Bootloader 4 to root and keeo activation. It's all luck of the draw on whether the phone you get will come with a firmware on a earlier firmware. If you're on the APH firmware or below I believe, you can downgrade to APE1 and root pretty easily while keeping activation. I'd personally recommend it only if you want to root and are fairly experienced. Glad the first device I rooted was an S3 and not this.
Click to expand...
Click to collapse
Yeah, I got my start on the S3, too. S4 was easy, too, thanks to all the hard work to some very proficient devs here, at least until that update Samsung pushed to tighten KNOX and whatnot.
Anyway, about the S7, I've seen a couple of guides here and there about rooting the S7, but more prevalent are the "OMG... I've lost all my services!" or "OMG! My phone deactivated!" follow-up replies, and then those followed up by "hacks" to maybe get things working again. All in all, though, there really isn't much internet chatter (messages, videos, guides, etc.) about rooting the S7 compared to the S3 and S4, hence why I get the feeling it's not really recommended until you are extremely determined.
~Zach~ said:
Yeah, I got my start on the S3, too. S4 was easy, too, thanks to all the hard work to some very proficient devs here, at least until that update Samsung pushed to tighten KNOX and whatnot.
Anyway, about the S7, I've seen a couple of guides here and there about rooting the S7, but more prevalent are the "OMG... I've lost all my services!" or "OMG! My phone deactivated!" follow-up replies, and then those followed up by "hacks" to maybe get things working again. All in all, though, there really isn't much internet chatter (messages, videos, guides, etc.) about rooting the S7 compared to the S3 and S4, hence why I get the feeling it's not really recommended until you are extremely determined.
Click to expand...
Click to collapse
If you're fairly experienced with android rooting, go ahead and try it. I'd recommend backing up your pit file before you try anything though. Rooting and getting activation back on bootloader 3 is quite easy, but with the new FW's it's slightly more difficult. An XDA user has rooted the latest U firmware from sprint and has everything working from voice to data to all else. I'd recommend PMing @vegoja for help with bootloader 4 rooting, but anything with bootloader 3 rooting I can help you with. Good Luck!
Hello fellow s7 users..... i was wondering if i could possible get some help on this hellish root process that ive been waiting to gain. I have successfully rooted my device via pc, odin and that other stuff. However, my root access failed to keep activation as quick as it was to gain root. I was in the middle of disabling all the unwanted bloat ware and out of no where, my phone kicked itself into a reboot and fell victim to a bootloop. I managed my way out of it and was able to boot all the way through only to find out that a majority of the stock apps would "suddenly stop" itself. Took me a min to sort out that dilemma but after doing so, i realized that i no longer had root access but my device was still rooted...?? Ive done the uninstall, reinstall and clear data steps but still haven't been able to successfully grant superuser permissions. So maybe, i missed a step or misunderstood a thread but i cant seem to work my way around this predicament....... could someone please help me??
I apologize if I'm not on the right thread to ask for help.... worth trying at least.
Thank you

First steps for new user( need help)

Hello all. I am just wondering what my first steps should be. I am coming from an lg g5 that I hated because it was 100 percent locked down. But before that I had an HTC one m8 so I kind of know what I am doing. I just want to know what my first steps should be. I want root, debloat, and nougat if possible.
Thanks
You're in for an unpleasant surprise.
A.) Root sucks on this phone, it causes slowdown and tons of issues due to the root method using a shotty and early engineering kernel.
B.) No Nougat unless you wanna run the beta. Which can't be rooted at all. (An official beta from Samsung that has a few issues and was canceled after only the second build due to Verizons stubborness.)
C.) For everything else you asked for LOOK ON THE FORUMS. There are literally guides on this forum for a reason if you kind of knew what you were doing that would be step #1.
BTW I only typed A and B because I wanted to be the bearer of bad news. Yes, I'm evil like that.
FoxyDrew said:
You're in for an unpleasant surprise.
A.) Root sucks on this phone, it causes slowdown and tons of issues due to the root method using a shotty and early engineering kernel.
B.) No Nougat unless you wanna run the beta. Which can't be rooted at all. (An official beta from Samsung that has a few issues and was canceled after only the second build due to Verizons stubborness.)
C.) For everything else you asked for LOOK ON THE FORUMS. There are literally guides on this forum for a reason if you kind of knew what you were doing that would be step #1.
BTW I only typed A and B because I wanted to be the bearer of bad news. Yes, I'm evil like that.
Click to expand...
Click to collapse
is it worth it running the beta?
Ryan829 said:
is it worth it running the beta?
Click to expand...
Click to collapse
Some people claimed it had better battery life and performance, I personally saw neither. And I also had issues with certain apps I use, including glitching and slowdown. However a good amount of people really like the beta (more than the number of people who reported issues like me), so I would tell you to try it out.
I personally use the G935U firmware on my phone. It is basically the same the ROM that is preinstalled on the unlocked version of the phone, meaning it has absolutely no bloatware, it runs smoother, has better battery life, and is slightly different in some ways because Verizon modifies our phones so much from what comes on the unlocked variant.(confirmed by everyone). And of course since it is the official firmware from the unlocked version it can be installed without rooting.
Again this is from my personal experience, so I am probably being pretty biased. This is just what I've had most luck with, I encourage you to try whatever you want on your phone and stick with what works best.
Additional guides you might want.
Link to the Beta Firmware and instructions on how to install it.
Link to how to install the U firmware on your phone.
Link to the latest U firmware. (The firmware in the above thread is old, the guide is still the same with the new firmware.)

Why is the Verizon S7 Edge root so crappy (serious, not being mean)?

Hey all,
First off let me just say great work to everyone involved with rooting this now "ancient" phone, especially klabit87 and jrkruse. Additionally, I do not mean to be ungrateful with this post, nor suggest that rooting a phone is easy, especially one with a locked bootloader, or that the users here are entitled to such a feature.
With that out of the way....
I haven't looked into rooting this phone EVER until now. Haven't even peaked at XDA or Googled anything, I didn't even know it was possible until yesterday. I've re-ROMed all my previous phones but was actually satisfied with the stock S7 experience other than a Launcher swap and dealing with the always laggy Google maps. Well recently I got a new car and got fed up with the obnoxious list/action limit that Android Auto has as the voice search can be quite unreliable, the letter search is somewhat bugged on the media player I use, and in the end all it does is encourage people to just use their phone to change songs/settings and send messages, thereby completely failing at its goal of being safer. So, I really wanted to get Xposed installed to use the module that makes AA a lot more usable; however, now that I've looked back into the scene a bit, I'm not so sure I want to move forward.
To preface my question: Every Android device I've had before was essentially either rootable or not and ultimately banked on a security exploit that was eventually found. There were never really any concerns about major issues unless you were changing ROMs, kernels, or testing major CPU behavior changes. Just rooting itself was almost always issue free other than a small bug or two or the need to reapply at reboot.
From what I gather, it seems to me that they only way currently to gain root privileges on this device is to install this ENG kernel that's talked about in a lot of more recent posts. Is it truly the case that someone had to write a kernel from scratch that was pre-rooted and as of right now there is no way to root the device as it is stock? Is it that the only known exploit is how to flash another kernel, and the stock kernel is still locked up tight? It sucks that the current root seems so unstable/slow. I know there are a plethora of fixes but there really is no one major fix (other than potentially reflashing the stock bootloader that for some reason seems to work), and its a matter of installing a boat load of CPU and resource management tweaks and even then the performance/battery life isn't quite stock. Additionally it seems like its definitely a YMMV kind of thing as some users seem to still have significant battery drain or slowness/heat even after trying tons of fixes.
Since I am just now getting familiar with the "homebrew" the phone I've had for 3+ years and know nothing about the work that's been done, I genuinely just want to know the technical implications that got in the way of a cleaner root and why the current root method is stuck as sort of a work-around so to speak. The people that manage these breakthroughs rarely post about the process they went through unless its pertinent to a guide on how to root, so I was just curious why the root for this device is in the current state it is.
I would really like to root my Edge so I can be done with the AA nonsense but after just getting a new battery put in I really don't want to go through ****ty battery life again haha.
Thanks to all who weigh in.
Verizon requires most if not all manufacturers to lock the bootloaders. This is also Samsung choice as well. The T-mobile S7/edge and newer have locked bootloaders as well. Difference is T-mobile leaves it up to the OEMs whether they want to lock it or not. With some U.S. businesses and enterprises using Samsung Galaxy devices. They focus on being "enterprise ready" which makes sense from a business standpoint.
Believe it or not, Samsung used to be developer friendly when the S II came out. They even gave away Galaxy S2 devices to some XDA devs.
So, if you want a Samsung device with an unlock able bootloader. Get one that has an Exynos SoC or the Chinese Snapdragon variant.

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