Have a Rooted SM-G900A and want to go Stock, will i loose unlock? - Galaxy S 5 Q&A, Help & Troubleshooting

Hello Forum,
I just realized that i bought a scam phone, they sold it as G900F and it really is a G900A.
Right now my is acting up, with random re-boots and bootloops. The phone is Rooted, and i'd like to un-root it and go stock.
I see that the only stock firmaware on SamMobile is the one i have 4.4.2, my question is, if i flash that one, will i loose the unlock?.
I currently can use any company's sim, will i loose that if i go stock?.
thanks so much for any pointers.
Javier.

Related

[Q] Unroot and return to stock.

Hello XDA. I am going to unroot and return to stock firmware and recovery as i would like to update the phone through samsung kies. As i understand i need to update the boot loader and modem. I then plan to reroot and install ktoonz recovery and get a newer rom. I have an SM-g900w8 (telus) currently running x-note NE2 software version 3 i belive and ktoonz 08.04.2014 kernel with twrp 2.8.0.0. I rooted the phone 3 days after i got it and never took a samsung update. I am just curious as to weather i need to revert to stock recovery before i flash the stock firmware. I made a brick out of my S2X trying to revert to stock so i am a little gun shy. Also wondering if this whole coarse of action is advisable and worth the trouble. If there are any known issues with rooting and flashing after samsungs latest updates. Also if anyone can provide or point my toward the stock firmware for a telus sm-g900w8 that would be great as i cant seem to find a reasonable place to download it. i apologize for not doing more reading and research but i just spent 6 months away from home working so i am trying to catch up. Thanks again XDA any help info or criticisms are appreciated .

[Q] Can I wipe an unrooted stock 4.4.4 rom and flash any custom 4.4.2 or 4.4.4 rom?

Hi. I apologize in advance if this thread is a duplicate and if my post is long. I didn't see one quite like this when searching, and given the walled off nature of Verizon's 4.4.4 update and my semi-light understanding of android customization, I didn't want to do something drastic to my phone and screw it up.
I have a SM-N900V. I was rooted and life was great until I installed Verizon's 4.4.4 update (N900VVRUDNK1) without reading that this thing hadn't been rooted yet and is majorly walled off. I assumed since 4.4.4 on AT&T and Sprint had been rooted, Verizon would be as well. Lately my phone has been freezing multiple times while texting, screwing up my texts by inserting random letters and words because of the lag, deleting the wallpaper after disconnecting from a bluetooth device, and other annoying things. And I miss all the benefits of rooting. Since the update came out in December, it doesn't look like any progress has been made on a root and maybe won't be.
My question is, can I wipe my phone (I realize all data will be erased) with this factory, unrooted 4.4.4 rom and flash it with a rooted 4.4.2 or rooted 4.4.4 rom? Also, do I need a Verizon specific rom or can I do a custom? While I have a Verizon phone, I use Straight Talk rather and have an AT&T sim in the phone. I don't know if that matters.
Thanks in advance!

Quick help with new S5

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

Help! Verizon gs5 lollipop recovery

I just got the Verizon variant of the Galaxy S5 (SM-G900V). I rooted it very easily using odin without tripping knox; that was easy.
I then began looking for ROMs; which for this phone, isn't easy with the locked bootloaders.
I came across a custom ROM, forgot off the top of my head but may go back to retry loading it.
Because these devices have locked bootloaders, any ROM flashed to it will need to have a separate bootloader flashed as well. The aforementioned ROM had one and I understood why, but after I odin flashed the new bootloader, i kept getting a black screen. OK no biggie, factory flash, re-root look for another ROM, except this time, I'm looking for a pre -rooted factory ROM. I came across a lollipop one, 0A8, was hoping for 0G5, but will deal with that later. Of course the ROM had to have, I guess for lack of a better word, a custom bootloader, or index, to tell the phone it's okay to use this software right? So now have lollipop, but have lost TWRP on boot. I'm not sure as to why this has happened, but it's a real pain I want to install and use ROMs on this phone. If I need to downgrade to have TWRP, that's no big deal. So here I am a lollipop stock ROM, rooted wihout TWRP, ugh.
Is there anyone who can help me find a solution to this, it's driving me mad. I just want to have a recovery installed and the klte version won't install. It must be a lollipop thing, but I would love to have cm12.1 when it comes out. And why does this stupid script keep popping up while I'm trying to type this. Just thought I'd share my frustrations or see if there is a way to get TWRP on lollipop?
Thanks in advance.
Hello,
Welcome to XDA.
To better assist you, your thread will be moved to your device Q&A forum linked below.
http://forum.xda-developers.com/verizon-galaxy-s5/help
The experts there may be able to help. Good luck.
U cannot load into twrp or safestrap above the n12 kernal.
If you want to access your recovery, you could try loading the n12 kernal via odin. Then use your recovery. Then reflash the right kernal for your rom via Odin to return to loading status.
That's what I hear is possible- you sound like you can rebuild if u get in trouble.
As for CM - we don't have an unlocked bootloader so that's unfortunately killing it at this time. We are stuck on stock rooted TW roms, or slight variations of TW roms.
Sent from my SM-G900V using XDA Free mobile app

need some assistance with i337m and getting back to stock.

I have read a fair amount here, but I'm not getting entirely relevant info and am hoping for some help.
I THINK I have finally found the place for stock roms. sammobile.com???
Now a bit of background.
I bought this phone used a few days ago. When I had a look, it is already rooted, which I'm fine with.
It is running 4.4.2. I'd like to upgrade to 5.0.x. Gotta friend with the same model. That's what he recommends.
I can live with 4.4.2 if I have to, meaning if I can't upgrade.
Since this is new (to me) I can live with losing all user data. Only thing is my wifi password is long and random and a pain to type in, but that is about all I'll suffer.
I had removed some apps using debloater, mostly just to see, but have since restored them. Then tried to update, got the message, which essentially says "you've got a custom rom. No updates for you".
I know the phone is unlocked, but not sure if factory or by unlock code. Does it matter, and if so, how can I tell?
I know the previous owner had a fido sim, and I noticed some bell apps on here. If I've read correctly, that doesn't guarantee this was originally a bell phone. Is there any way I can tell? Right now I have no sim. I can shove in an old speakout sim that is deactivated.
So anyway
Model number SGH-I337M
Android Version 4.4.2
Baseband version I337MVLUFNI2
Kernel Version
3.4.0-2767305
[email protected] #1
Mon Sep 29 13:01:35 KST 2014
Build Number
KOT49H.I337MVLUFNI2
SE for Android Status
Enforcing SEPF_SHG-I337M_4.4.2_0032
Wed Oct 15 17:04:13 2014
Secure Boot status
Type: Samsung
I've downloaded ODIN, but not a ROM yet, since I'm not positive who's I should use.
Also, I had gone thru the guide to enable AWS. That seems to work, as it would take the sim at the wind kiosk. I'd like to keep that, but if I have to redo it, that is fine.
I trust it is not a good idea to upgrade to a "stock" 5.0.x by just flashing roms?
Thx for any help.
ok, another question. I just registered at sammobile, but they don't seem to have roms for the S4??? Are they hidden somewhere? Where can I get stock roms, if not there? Thx
Nevermind. You have to type in the device name. It just isn't on the pulldown list.
Another question you might find stupid.
If I update to (for example) the Bell Roms, do I have to have a valid Bell sim in order to do an update?
Well maybe 2 stupid questions.
I still have to use triangle away for flashing back to 4.4.2 don't I? I read somewhere that they (meaning Samsung) expected the count to be > 0 at some point but I don't remember at what version, and I can't seem to find it again.
So what do you guys do? Flash it a couple of times to get the count right?
If the phone is sim unlocked, it should remain permanently unlocked regardless of whether you flash custom or stock ROMs.
The easiest way to get to stock LP would be to flash the stock LP rom via Odin from here: http://www.sammobile.com/firmwares/database/SGH-I337M/
Before the first boot with the LP ROM, the phon should be factoru reset via stock recovery.
Doesn't really matter whether you flash Bell, Rogers, or Telus. The hardware used by all 3 carriers is the same. The only difference would be in the apps that are installed with each stock ROM.
audit13 said:
If the phone is sim unlocked, it should remain permanently unlocked regardless of whether you flash custom or stock ROMs.
The easiest way to get to stock LP would be to flash the stock LP rom via Odin from here: http://www.sammobile.com/firmwares/database/SGH-I337M/
Before the first boot with the LP ROM, the phon should be factoru reset via stock recovery.
Doesn't really matter whether you flash Bell, Rogers, or Telus. The hardware used by all 3 carriers is the same. The only difference would be in the apps that are installed with each stock ROM.
Click to expand...
Click to collapse
Thx. that should get me started anyway.
scott1256ca said:
Thx. that should get me started anyway.
Click to expand...
Click to collapse
I think I have reflashed properly. I'm downloading the update (probably to 5.0.1??) via phone now, but I noticed after I started that I have the warning triangle. So maybe the update will not install when it is done. I'll know in a couple of hours I guess.
So I should have run triangle away BEFORE the reflash? Or are you no longer supposed to run that? Or is there some android version after which you are no longer supposed to use it?
Thx
Well, phone seems to have updated to 5.0.1, which is what I wanted. With the update, the warning triangle is gone also.
So thanks again for your help. I guess I'll be on to other things here.

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