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Ready to sell this phone... tried everything I know how to try... Dev Edition Verizon S5, CAN'T UPGRADE from stock NCG. The most I can do it root... any ROM I flash is nonfunctional on Verizon's network with NO SIGNAL. Replaced SIM, flashed modems, etc etc... I think I'm just not sure how to do it with a dev edition... seriously feel like I'm missing a step. Would like to start from scratch. Does anyone have a stock image of a G900V Dev Edition I could work from, since I'm starting to think the one I've been working from is somehow the incorrect version. Thanks!
http://www.sammobile.com/firmwares/
type g900v in search bar
DSA said:
http://www.sammobile.com/firmwares/
type g900v in search bar
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I would but I'm trying to avoid locking the bootloader, if possible. Didn't intend on having a developer device, but now that I do, I'd like to try to maintain it's use as one. Bought this phone on swappa, seller didn't give any indication that it was a developer device. Now I'm concerned he did something to it prior to selling that is causing me difficulties. I don't think I should be having these network difficulties, but there could very well be something I'm supposed to be doing with the modem that I'm just unaware of. I figure if I can get back to the way this phone was when it was new (when the original seller bought it) I'd at least have a clean slate to work with.
gatorhater73 said:
I would but I'm trying to avoid locking the bootloader, if possible. Didn't intend on having a developer device, but now that I do, I'd like to try to maintain it's use as one. Bought this phone on swappa, seller didn't give any indication that it was a developer device. Now I'm concerned he did something to it prior to selling that is causing me difficulties. I don't think I should be having these network difficulties, but there could very well be something I'm supposed to be doing with the modem that I'm just unaware of. I figure if I can get back to the way this phone was when it was new (when the original seller bought it) I'd at least have a clean slate to work with.
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Anything usable in here?
http://www.galaxys5update.com/galaxy-s5-stock-firmware/
kprice8 said:
Anything usable in here?
http://www.galaxys5update.com/galaxy-s5-stock-firmware/
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I don't think so, but thanks... I think that's the same device firmware that the retail version comes with, which will lock my bootloader. I've actually considered just flashing it anyway and saying the hell with an unlocked bootloader, since I didn't really intend to have one to begin with and apparently there's nothing I can do with it, anyway (none of the unified builds work on my device, anyway) but this is a last-ditch effort to preserve it if i can, and I'm hoping some dev will be willing to help me diagnose my problem.
gatorhater73 said:
I don't think so, but thanks... I think that's the same device firmware that the retail version comes with, which will lock my bootloader. I've actually considered just flashing it anyway and saying the hell with an unlocked bootloader, since I didn't really intend to have one to begin with and apparently there's nothing I can do with it, anyway (none of the unified builds work on my device, anyway) but this is a last-ditch effort to preserve it if i can, and I'm hoping some dev will be willing to help me diagnose my problem.
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It's not like there's a ton of development going on for Dev edition. I'm loving the retail version of the phone just rooted and running some Xposed. Like it so much, I went out and got one for the wife too and I paid full retail for both to keep my old unlimited data plan. Hers I just left out of the box stock. Will be interested to see how Lolipop looks when it drops to her phone. Sure hope we keep root with Lolipop, I use the heck out of my hotspot, to the tune of about 70gb/mo ...
gatorhater73 said:
I don't think so, but thanks... I think that's the same device firmware that the retail version comes with, which will lock my bootloader. I've actually considered just flashing it anyway and saying the hell with an unlocked bootloader, since I didn't really intend to have one to begin with and apparently there's nothing I can do with it, anyway (none of the unified builds work on my device, anyway) but this is a last-ditch effort to preserve it if i can, and I'm hoping some dev will be willing to help me diagnose my problem.
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I'm far from a developer, but this may help. I also bought the phone without realizing what it was I was getting into and had similar problems flashing the Optimal rom on my dev edition s5. I could flash but phone would hang on the activation screen with no signal. I eventually succeeded. As near as I can recall this is what I did:
I dirty flashed Beantown 4.4.4 rom (twrp) over my 4.4.2 stock firmware. then flashed n12 firmware (included stock kernel, and modem) from dev edition make an update .tar thread (odin) (http://forum.xda-developers.com/showpost.php?p=56604757&postcount=2). I did a factory reset after flashing. Switched to art. Flashed optimal with clean reset, but did not flash kernel. Later flashed koontsez 4.4.4 kernel. Still running Optimal
Good luck.
JOrkin said:
I'm far from a developer, but this may help. I also bought the phone without realizing what it was I was getting into and had similar problems flashing the Optimal rom on my dev edition s5. I could flash but phone would hang on the activation screen with no signal. I eventually succeeded. As near as I can recall this is what I did:
I dirty flashed Beantown 4.4.4 rom (twrp) over my 4.4.2 stock firmware. then flashed n12 firmware (included stock kernel, and modem) from dev edition make an update .tar thread (odin) (http://forum.xda-developers.com/showpost.php?p=56604757&postcount=2). I did a factory reset after flashing. Switched to art. Flashed optimal with clean reset, but did not flash kernel. Later flashed koontsez 4.4.4 kernel. Still running Optimal
Good luck.
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Had marginal success using this method... Have been able to maintain a 3G signal, but no LTE after first boot. Rather, when I first booted, I had LTE and thought I was good, but since my first reboot, I can only get 3G and nothing I do can get it back so far.
JOrkin said:
I'm far from a developer, but this may help. I also bought the phone without realizing what it was I was getting into and had similar problems flashing the Optimal rom on my dev edition s5. I could flash but phone would hang on the activation screen with no signal. I eventually succeeded. As near as I can recall this is what I did:
I dirty flashed Beantown 4.4.4 rom (twrp) over my 4.4.2 stock firmware. then flashed n12 firmware (included stock kernel, and modem) from dev edition make an update .tar thread (odin) (http://forum.xda-developers.com/showpost.php?p=56604757&postcount=2). I did a factory reset after flashing. Switched to art. Flashed optimal with clean reset, but did not flash kernel. Later flashed koontsez 4.4.4 kernel. Still running Optimal
Good luck.
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This happened after I flashed the update.tar (with aboot.mbn removed) and I have note gotten LTE back. Is there something I can do with my aboot.bak that I'm missing?
Ok, I've been running a Note 2 for a VERY long time since released. ROMing, rooting, etc was super simple and did it often. However, its been a year or more since I've had to do anything. Now with my new phone it seems there are a lot of new hoops to jump through. I already got the AT&T has detected something yada yada you're screwed yada yada and had to flash back stock firmware with Odin.
So I have rooted with towelroot. I've tried installing the TWRP via their app which caused the first soft AT&T brick.
I don't care about warranty, timer fuse, flash ticker etc etc. I bought the S5 new but second hand. I hate asking to be spoon fed how or where to look but I'm at my wits end. Don't even have to say anything just provide some links. I havent been on a stock android in years and this is killing me.
I've read something about needing Loki to bypass bootloader but saw it's for S4 and not sure what to do with it.
I have the US version of the Galaxy S5 running 4.4.2 Model 900A. I see CWM and TWRP links I've found say they can't do to bootloader lock so not sure where to go.
Thanks ahead of time!
Ok, waiting on my SD card to get here in the morning to use safestrap. What actual roms can I use? I see only things using stock kernel but can CM or other non basic stock roms?
Can I flash this? http://forum.xda-developers.com/galaxy-s5/unified-development/rom-resurrection-remix-5-3-4-t3033255
I'm on A01 bootloader and have flashfire etc via this thread. Running G900A_OF3_Stock_Rooted_Deodexed_ROM http://forum.xda-developers.com/att...w-to-update-to-g900aof2-5-0-keeproot-t3149146
Hi Guys,
New to this device, but not new to Android... Read all over the web, various sites (esp this one) about this device and seeing mixed views/comments. Some saying its possible, others saying it will brick or flag the Knox.
Is it possible to downgrade this phone (G900F) currently on the latest 6.0.1 stock rom. But was wondering if I could try either official stock of 4.4.2 or 5.1.1 of this device.
Or due to this bootloader, is it likely to brick or even trip Knox?
Thanks, Lister
Lister Of Smeg said:
Hi Guys,
New to this device, but not new to Android... Read all over the web, various sites (esp this one) about this device and seeing mixed views/comments. Some saying its possible, others saying it will brick or flag the Knox.
Is it possible to downgrade this phone (G900F) currently on the latest 6.0.1 stock rom. But was wondering if I could try either official stock of 4.4.2 or 5.1.1 of this device.
Or due to this bootloader, is it likely to brick or even trip Knox?
Thanks, Lister
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Official stock ROMs shouldn't trip Knox because they are, ummm, official.
I think the G900F bootloader is unlocked.
Sent from my Samsung SM-G900I using XDA Labs
Why downgrade in the first place..... ? 6.0.1 is way better than previous FWs...
Hi @Dirty Flasher,
Yeah, that's what I thought... It's all stock, so all should be good... But I've read reports saying it will trip Knox as since a certain version of Marshmallow, the bootloader has been locked to only go with future firmwares and not allow downgrades. I assume to prevent people restoring to the older firmware (with bootloader) which was unlocked, that allowed rooting without tripping. But some say it will trip, others say it will not... I'm confused, and wondered if anyone has tried this, and what the outcome was... Don't want to trip Knox unnecessarily... if someone has already tried and tested it.
Dirty Flasher said:
Official stock ROMs shouldn't trip Knox because they are, ummm, official.
I think the G900F bootloader is unlocked.
Sent from my Samsung SM-G900I using XDA Labs
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Hi @Zlate2255,
I got this device when it was already one 6.0.1, so I missed seeing it go through the various stages. I would like to see how it used to look like and work. As there are some features that have been removed since, such Face Unlock and Iris tracking when viewing pages. Whilst the latter is still there burried away, it barely works, so should be removed completely. But would just be nice to see what it did look like.
Zlate2255 said:
Why downgrade in the first place..... ? 6.0.1 is way better than previous FWs...
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Thanks, Lister
With my G900W8, I could downgrade to 4.4.2 with very-first firmware for G900W8 (NCG). Just try the earliest version of 4.4.2 and then upgrade back to 5.1.1
You can downgrade the g900f to every firmware (if unlocked) you want. On some s5 devices who have a locked bootloader like the at&t version there have been reported some problems.
Therefore, you shouldn't run into any problems while downgrading.
If you want some pro and cons to the firmwares:
Kitkat:
+ dark design (the touchwiz apps like contacts)
+ more battery friendly than marshmallow
- less security due to no security updates
- you might run into some minimal bugs, for example on wikipedia you sometimes have to reload the page to watch pictures (at least on mine)
- no app permissions can be removed (only with root and app ops)
Lollipop:
Honestly, I havent used this one that much, but here you have a white design with the different statusbar and pull down menu, better security (but not as good as on marshmallow) and the material design, but slightly worse battery time.
Marshmallow:
+ OTA Updates still available, best option for security
+/- White design, material design
+ new icons (but tbh not a real deal)
- less battery friendly (atleast for me even tho doze is enabled on marshmallow)
So yeah, choose what you want
And be sure that you have an unbranded device (check your csc) before downgrading/updating.
Hi @tm60405,
Wow, what a fantastic post... Thank you, exactly what I was looking for, and thanks for your reviews of each rom too.
- appreciate that, cheers
Quick question, how do I know if my Bootloader is unlocked??
Its a G900F (UK) was originally on the Three network, however I've flashed it to pure stock BTU, and to the EE network and back to stock BTU (all Marshmallow roms).
So where am I looking, or how do I know if the Bootloader is unlocked? Also, what am I looking for in the CSC info...??
Many thanks, Lister
Install the app called phone info from the play store.
Then, you swipe to the csc code and you can see your info and remember the csc you are on.
If it is BTU, you can install another firmware based on BTU without problems. But even if you don't have BTU, you can try installing BTU because it doesn't contain much bloatware. In the worst case, you just install the firmware with the csc you had before.
Then, follow the instructions on sammobile.com and there will be no problems during the installing process.
After downgrading, you might get a bootloop. Then, you have to factory reset your device, so get the data from the internal storage elsewhere BEFORE the installation.
And if the download takes too long, try another browser like opera, for me it takes around 1 hour only instead of 4-5 hours on chrome.
If you might have another problem while installing the firmware, say so.
I have a Rooted sm900v Verizon phone.Im on 5.0 with Knox,detoxed.So its been few yrs now and was wondering what latest OS i can run with KNox ,detoxed,or should i stay on 5.0,if so can you point out to whats out there for my version?I remember when i rooted my phone i had to pick a certain root then.So with that said just seeing if i can run a better/upgrade OS these days like OREO as an example.Looking for some feedback what other Samsung S5 sm900v guys are running,thanks.
I was on 6.0 and went to 5.0, then rooted it, unblocked the bootloader, flashed lineage.
SpanKyM3 said:
I have a Rooted sm900v Verizon phone.Im on 5.0 with Knox,detoxed.So its been few yrs now and was wondering what latest OS i can run with KNox ,detoxed,or should i stay on 5.0,if so can you point out to whats out there for my version?I remember when i rooted my phone i had to pick a certain root then.So with that said just seeing if i can run a better/upgrade OS these days like OREO as an example.Looking for some feedback what other Samsung S5 sm900v guys are running,thanks.
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Yo, I see you are a man of culture as well. My S5 is currently running LineageOS 15.1 (Official!) and it is BEAUTIFUL. Runs like a dream. If you want, I can show you how to get the bootloader unlocked and flash TWRP. Send me a PM if you're interested! Best of luck on your journey bro.
jiwanshu2003 said:
If you want, I can show you how to get the bootloader unlocked and flash TWRP. Send me a PM if you're interested! Best of luck on your journey bro.
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Jiwan, would you mind sharing the procedures here or a link to them? I have the SM-903VL model, and while I understand it's a different device, it may not be so dissimilar. I have been attempting root and twrp flash for a while and it seems 2 things are at issue, 1. I had no clue what I was doing when I started, and now, while I have some knowledge, I realize just how much I am going to have to learn If I want to figure out a root method.
2. This SM-903VL is locked up tighter than a nuns corset.
Your knowledge on the afore mentioned procedure would help me understand the workings of these phones a bit better, and, on an off chance, might actually do the trick of at least getting twrp installed.
I have the stock recovery file to insert into the TWRP.
jiwanshu2003 said:
Yo, I see you are a man of culture as well. My S5 is currently running LineageOS 15.1 (Official!) and it is BEAUTIFUL. Runs like a dream. If you want, I can show you how to get the bootloader unlocked and flash TWRP. Send me a PM if you're interested! Best of luck on your journey bro.
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If I could revive and piggyback on this discussion - I'd like the help you offered with getting my g900v re-rooted with TWRP running. I had a nandroid backup and accidently deleted the TWRP, which forced me to re-stock and re-root. I have not been able to recover with safestrap (not impressed) also, I kept getting gapps failures once up and running (Lollipop 5.0 rooted). My initial goal was to flash resurrection or lineage and now I am finding that most instructions say the G900v is not unlockable and I feel stuck. Would you mind sharing with me what your method was or point me to a link that you followed? - I think my chipset started with 11 (as opposed to 15) if I'm using the proper terminology.
I own a G950U and have been holding out updating dealing with the annoying system upgrade notifications since i'm still on bootloader rev.2. My question is, is it even worth the trouble of rooting and flasing the one or two roms that are avaiable for this model or should i just update and stay stock (as there doesn't seem to be much in the rom development area of samsung devices going forward)?
Im stuck at the same point. I kinda wished i never rooted my phone, and I somewhat messed up and got stuck in a bootloop. Long story short i fixed it and am running this root by PartyCyborg and I like it alot. https://forum.xda-developers.com/galaxy-s8/development/root-partcyborgrom-aqi6-deodexed-t3702988 theres the link and its the newest one not previous versions. If your going to run a Root this is what I would do.
yea I run stock rooted And i debate wether to upgrade so my sim unlocking software can unlock mine or stay root And so far I have stayed rooted
Yea...It seems to be a matter of opinion if your a legacy rom/root installer or up-to-date current tech type...I belong to the latter so I assume i'd be happier with this option, I've checked out this rom and attempted install one time, but quickly reverted due to time constrictions, but now that i have the time am trying to decide (because it doesn't always go right on the 1st try, lol) Thanks for the input guys!
btw, which carrier do you use? I have Verizon and was wondering about the hotspot issues i've read about.