helps galaxy s4 sph-l720 - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

Greetings. I have a galaxy s t720 sph-4 with software version 4.3 L720VPUEMK2. I want to unlock it but I read somewhere that I have to have the baseband version MDC or MDL. I tried to flash it with odin 1.85 and 3.07 to lower version and gives me fail. someone could help me I'm doing wrong? agradecere your support. thanks

ltindi32 said:
Greetings. I have a galaxy s t720 sph-4 with software version 4.3 L720VPUEMK2. I want to unlock it but I read somewhere that I have to have the baseband version MDC or MDL. I tried to flash it with odin 1.85 and 3.07 to lower version and gives me fail. someone could help me I'm doing wrong? agradecere your support. thanks
Click to expand...
Click to collapse
Do you care about your warranty? If not, then flash away whatever you would like.
There are people looking to defeat the Knox bootloader, and someone claims to have found a way, so there is some progress. You can flash a recovery first, or just the Cf Auto root tar.
You will trigger your Knox warranty void in your bootloader though. It's up to you.
Sent from my SPH-L720 using Tapatalk

Thank you. what the warranty does not matter. if so could root version download it from? that is, the original rom I flash it with lower version?

Based on your broken English I believe you are looking to unlock the sim card for use in a different country and not just root your phone. If this is the case then there are several threads that explain how to do this. The key is the baseband has to be downgraded to MDC. You found out already that once your phone is on MK2 the bootloader prevents you from downgrading to a version earlier than MJA. I believe people have been successful just downgrading the modem to MDC to perform the unlock methods posted in this forum. Look for Unknownforces All Sprint Firmware thread in the development section and download just the MDC modem and try that. Remember, you must power off the phone before entering download mode or the modem won't take.

Thank you. proves to degrade the modem to see result and posting

Related

[Q] Downgrade to older stock ROM N9005?

Hey all!
Is it possible to downgrade from a newer (NE3) firmware to an older (ND3) through Odin or it will brick my phone because of the bootloader?
The only things I know are that 1) Downgrade from 4.4.2 to 4.3 is not possible 2) It's possibile to install a custom older rom on new bootloader and vice versa BUT I don't know if it's possible with stock roms with Odin.
I looked for a solution but nothing found and no one answered me so I opened this thread to find out a solution.
Thanks in advance.
UP still interested because NE4 + custom kernel gives problems that others doesn't have
Sent from my SM-N9005 using XDA Premium 4 mobile app
Dan
I also wanted to do dawngrade because the because the 4.4.2 is **** battery does not hold as it should as was holding before the update
kylothow said:
Hey all!
Is it possible to downgrade from a newer (NE3) firmware to an older (ND3) through Odin or it will brick my phone because of the bootloader?
The only things I know are that 1) Downgrade from 4.4.2 to 4.3 is not possible 2) It's possibile to install a custom older rom on new bootloader and vice versa BUT I don't know if it's possible with stock roms with Odin.
I looked for a solution but nothing found and no one answered me so I opened this thread to find out a solution.
Thanks in advance.
Click to expand...
Click to collapse
I never actually tried going back to an older version but I really don't see why you shouldn't. As long as it's KitKat 4.4.2 just try it should work. I downgraded my Modem and haven't had any issue.
With the Bootloader worry...did you even change the bootloader? As well as the Modem you have to do that separate to the Rom, as flashing a Rom doesn't touch Modem an Bootloader!!! If you don't know how to do that please just leave it alone though unless you read, read, read a lot on how to do that.
4aces said:
I never actually tried going back to an older version but I really don't see why you shouldn't. As long as it's KitKat 4.4.2 just try it should work. I downgraded my Modem and haven't had any issue.
With the Bootloader worry...did you even change the bootloader? As well as the Modem you have to do that separate to the Rom, as flashing a Rom doesn't touch Modem an Bootloader!!! If you don't know how to do that please just leave it alone though unless you read, read, read a lot on how to do that.
Click to expand...
Click to collapse
Thanks for the reply, every time I install a new rom I make sure to update the bootloader and modem too, and from what I can read from the Synapse app I have the NE3 modem and NE4 bootloader.
I'm asking how to go back to older roms because going from 4.4.2 to 4.3 updating the bootloader with Odin you obtain only a fancy paper weight, and I didn't know if going from newer to older 4.4.2 bootloader it was the same story.
Sent from my SM-N9005 using XDA Premium 4 mobile app
kylothow said:
Thanks for the reply, every time I install a new rom I make sure to update the bootloader and modem too, and from what I can read from the Synapse app I have the NE3 modem and NE4 bootloader.
I'm asking how to go back to older roms because going from 4.4.2 to 4.3 updating the bootloader with Odin you obtain only a fancy paper weight, and I didn't know if going from newer to older 4.4.2 bootloader it was the same story.
Sent from my SM-N9005 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I'm pretty sure there won't be an issue mate since I flash between custom roms almost daily which are most of the time different models. If you want to be 100% sure wait for someone to confirm as I'm rooted since I got the chance to do so.
Thanks to the developer Civato I read on his FlexKat thread he correctly downgraded his bootloader from NE6 to ND6 with Odin...
So problem solved, this is definitely possible.
Thank you everyone for your replies :good:
Downgrading bootloaders on the same version generally tends to work OK, mainly because on 4.3 Samsung patched the security flaw which stopped you going <MJ7
Kith Kitkat I never had any issues flipping back and forth.--- Until it's a BL upgrade with OS Number change (IE: 4.4.3 if it has new BL) then it shouldn't work.
hi. sorry,this is probably an old thread but I need some help,please and somehow,Google got me here. I want to downgrade (not really downgrade) my N9005 to 4.4.2.
I currently have a custom ROM(resurrection remix v5.6.9,in settings it says that I have android 6.0.1 marshmallow). Also,I have a custom recovery(TWRP). Well,I would like to install the KitKat stock ROM and really did a lot of research but I cannot find it anywhere :'( . Do you know any source? And also,can I flash it with mobile ODIN? When I opened Mobile Odin Pro it said that if I don't have the boot loader for the ROM I want to install then I will experience a soft brick. Isn't TWRP a good boot loader?
Also,does it matter what version of N9005 I own? mine is: XXUGBOJ1. Could I flash smth that is not for this ..base band is it called?...
pls help
I'm such a newbie and I don't wanna mess up
PainCutter said:
hi. sorry,this is probably an old thread but I need some help,please and somehow,Google got me here. I want to downgrade (not really downgrade) my N9005 to 4.4.2.
I currently have a custom ROM(resurrection remix v5.6.9,in settings it says that I have android 6.0.1 marshmallow). Also,I have a custom recovery(TWRP). Well,I would like to install the KitKat stock ROM and really did a lot of research but I cannot find it anywhere :'( . Do you know any source? And also,can I flash it with mobile ODIN? When I opened Mobile Odin Pro it said that if I don't have the boot loader for the ROM I want to install then I will experience a soft brick. Isn't TWRP a good boot loader?
Also,does it matter what version of N9005 I own? mine is: XXUGBOJ1. Could I flash smth that is not for this ..base band is it called?...
pls help
I'm such a newbie and I don't wanna mess up
Click to expand...
Click to collapse
Get a 4.4.2 fw and flash with windows odin. Not really familiar with mobile odin. Find fw for you country csc. Flashing other csc fw sometimes requires pit file so better get the 1 for your country or originally came with the phone.
Sent from my SM-N920C
Rosli59564 said:
Get a 4.4.2 fw and flash with windows odin. Not really familiar with mobile odin. Find fw for you country csc. Flashing other csc fw sometimes requires pit file so better get the 1 for your country or originally came with the phone.
Sent from my SM-N920C
Click to expand...
Click to collapse
I'd do that..my csc is for Romania. But I cannot find anywhere on the Internet the fw. And I searched alot
PainCutter said:
I'd do that..my csc is for Romania. But I cannot find anywhere on the Internet the fw. And I searched alot
Click to expand...
Click to collapse
Samsung updates.com.
I can see a few for Romania with CNX, ORO, COA, ROM, HAT csc.
But they very old. Probably not downloadable.
Sent from my SM-G925F

[Q] What model (version) of s4 is exactly this?

What model (version) of s4 is exactly this phone? which software is installed on it? is it stock or not ? plzz help and tell me its complete version details
My phone is sgh-i337 or gt-i9505 ? Or only baseband version is i337...or any firmware version difference ? Help
Open the back and remove the battery. Look on the label. Unless the person who sold you the phone physically changed the label, or removed it, it will accurately tell you the hardware version of your phone.
Given that the boot loader and modem (baseband) are for the AT&T version, SGH-I337, it seems likely that the hardware is I337.
Edit: Also, check that it's not a cheap fake clone. There are apps that can check hardware, and run benchmarks, etc. Search "Genuine Galaxy" on the play store.
creepyncrawly said:
Open the back and remove the battery. Look on the label. Unless the person who sold you the phone physically changed the label, or removed it, it will accurately tell you the hardware version of your phone.
Given that the boot loader and modem (baseband) are for the AT&T version, SGH-I337, it seems likely that the hardware is I337.
Edit: Also, check that it's not a cheap fake clone. There are apps that can check hardware, and run benchmarks, etc. Search "Genuine Galaxy" on the play store.
Click to expand...
Click to collapse
On back its printed gt i9505...and I installed genuine galaxy it also says its genunine and model gt i9505......but why baseband is different :/ ?
I think my baseband is of different phone but hows that possible...
why someone would change it...
ahsandon007 said:
I think my baseband is of different phone but hows that possible...
why someone would change it...
Click to expand...
Click to collapse
I've really no clue. I'm not aware whether an AT&T modem will even work on that phone.
If the hardware is genuine GT-I9505, then you will most likely get a more definitive answer in the XDA-Developers forum for that phone.
ahsandon007 said:
What model (version) of s4 is exactly this phone? which software is installed on it? is it stock or not ? plzz help and tell me its complete version details
Click to expand...
Click to collapse
It's most likely an I337 with an I9505 system. Either way, since the bootloader is i337, that means it's locked so if it ever was an I9505 it's not now, but mist likely it wasn't ever.
I checked indownload mode its sgh i337....can I install back stock firmware ...see this site http://www.att.com/esupport/softwareUpdateArticle.jsp?sid=KB419415&cv=820
is it possible to flash through odin this stock lollipop firmware?
Finally I got it....its i337...I checked imei on imei.info it says it is i337 and also checked for blacklist its all clean....and I opened back cover and see it and its written "MADE BY SAMAUNG" ...spelling of samsung is wrong ...it means sticker and software are of 9505 and hardware are i337 at & t usa carrier....I think its changed in korea...phone is converted....now planning to download stock firmware of i337 lollipop and install through odin...
if anyone have link plz share
ahsandon007 said:
Finally I got it....its i337...I checked imei on imei.info it says it is i337 and also checked for blacklist its all clean....and I opened back cover and see it and its written "MADE BY SAMAUNG" ...spelling of samsung is wrong ...it means sticker and software are of 9505 and hardware are i337 at & t usa carrier....I think its changed in korea...phone is converted....now planning to download stock firmware of i337 lollipop and install through odin...
if anyone have link plz share
Click to expand...
Click to collapse
The boot loader is locked, so you can't do this exactly. You can install stock KitKat, install safestrap, and upgrade to lollipop that way. You need to read through the forums to understand what you are doing before you proceed. I'd suggest you do quite a bit of reading, and only flash when you are sure you know what you want to do.
creepyncrawly said:
The boot loader is locked, so you can't do this exactly. You can install stock KitKat, install safestrap, and upgrade to lollipop that way. You need to read through the forums to understand what you are doing before you proceed. I'd suggest you do quite a bit of reading, and only flash when you are sure you know what you want to do.
Click to expand...
Click to collapse
Send me links of threads from which I can understand and also which kitkat version should I install ...if u explain me in detail it will be helpful ..plz
ahsandon007 said:
Send me links of threads from which I can understand and also which kitkat version should I install ...if u explain me in detail it will be helpful ..plz
Click to expand...
Click to collapse
You seem to understand what you are doing. You should be able to figure this out on your own.
Start here.
Also this.
And this.
Or try some of the fine custom firmware in the Android Development forum.
ahsandon007 said:
(in a private message) Hey...there are so many things I cant understand in threads...can you plz tell me step by step how I can update to stock lollipop my sgh i337 ...safestrap etc..stuff ..thnx in advance
Click to expand...
Click to collapse
I do not own this phone, so I can't test or speak from personal experience. I already gave you the links to the information you need ^^^. I don't know if you can receive Over The Air (OTA) firmware updates. You may not be able to if you're not in USA. Also, I'm not sure if you need to be on an AT&T sim. If you can, you can get stock lollipop without root with this method: go to the "[GUIDE]Odin to Stock, Updating, Rooting, and Installing Safestrap" which is the second link. Go to the second post titled "Odin to Stock, Updating, Rooting, and Safestrap Instructions" and click the button to expand the instructions for "OPTION 1 - Stock Lollipop (No ROOT)"
If you cannot receive OTA updates, then currently your option would be to first flash NB1, manually flash the NJ4 update, root and install safestrap. In the Odin to Stock guide, perform both step 1 and step 2 under "NJ4 -- KitKat 4.4.4" After this, you can use the "[How-To] Update to I337_OC3 - 5.0.1 and KeepRoot (4/7/2015) " thread, which is the third link above ^^^.
Your third option would be to wait until the developers post a method for flashing Lollipop directly from Odin.
creepyncrawly said:
I do not own this phone, so I can't test or speak from personal experience. I already gave you the links to the information you need ^^^. I don't know if you can receive Over The Air (OTA) firmware updates. You may not be able to if you're not in USA. Also, I'm not sure if you need to be on an AT&T sim. If you can, you can get stock lollipop without root with this method: go to the "[GUIDE]Odin to Stock, Updating, Rooting, and Installing Safestrap" which is the second link. Go to the second post titled "Odin to Stock, Updating, Rooting, and Safestrap Instructions" and click the button to expand the instructions for "OPTION 1 - Stock Lollipop (No ROOT)"
If you cannot receive OTA updates, then currently your option would be to first flash NB1, manually flash the NJ4 update, root and install safestrap. In the Odin to Stock guide, perform both step 1 and step 2 under "NJ4 -- KitKat 4.4.4" After this, you can use the "[How-To] Update to I337_OC3 - 5.0.1 and KeepRoot (4/7/2015) " thread, which is the third link above ^^^.
Your third option would be to wait until the developers post a method for flashing Lollipop directly from Odin.
Click to expand...
Click to collapse
I successfuly updated to 4.4.2 stock NB1 software manually thorough odin then manually flashed NJ4 by stock recovery...now im not receiving ota update to lolipop....now what nxt to do ? should i root NJ4 and install OC3...
And actually I dont want to root i nedd unrooted stock OC3 ...if you know any direct method to flash..
After update to nj4 4.4.4 im getting delays in sending text msgs and making calls....what to do now should i flash different modem or baseband any ideas ?? :/
Now that you have updated your user account, we can see that you are in Faisalabad, Pakistan using Mobilink carrier. As far as I know, you will not be able to receive an over the air update, nor be able to use Kies to update. Someone who knows more could give a definitive answer on this.
Assuming that you will be unable to use OTA or Kies, your options are:
- root, install safestrap, install rooted OC3
- wait unitl (and if) developers post an Odin flashable version of stock unrooted OC3.
As far as your other issues, you could install the NB1 modem (baseband) and see if that clears up the issues, as it was working before.
creepyncrawly said:
Now that you have updated your user account, we can see that you are in Faisalabad, Pakistan using Mobilink carrier. As far as I know, you will not be able to receive an over the air update, nor be able to use Kies to update. Someone who knows more could give a definitive answer on this.
Assuming that you will be unable to use OTA or Kies, your options are:
- root, install safestrap, install rooted OC3
- wait unitl (and if) developers post an Odin flashable version of stock unrooted OC3.
As far as your other issues, you could install the NB1 modem (baseband) and see if that clears up the issues, as it was working before.
Click to expand...
Click to collapse
I downgraded modem to NB1 and no signal then i used OC3 modem it works bit better than previous one.....lags sometimes ...is there any way to flash 9505 modem to i337 phone ? :/
I upgraded to 5.0.1 using keeproot method of flashfire...thanks broo very very much.....
baseband problem still exists on OC3 modem....i maximum get 3/5 signal bars....can i flash i9505 modem using mobile odin or ant method ?
EDIT: i flashed successfuly 9505 modem but baseband version goes unknown and no sim/signal....is there any fix? Flashing efs?
What if I dwld 9505 lolipop from sammobile and install by odin or flashfire?

Help on Unlocking Note 4 SM-N910P Sprint

Hi,
Need your help. I have a Note 4, Sprint locked, model number SM-N910P, Lollipop Version 5.1.1. I would like it to be unlocked so I can use it in the Philippines. I see a thread that I need to downgrade the ROM then use SSU.apk. When I am trying to have it downgraded, Odin was not able to finish the Job. It always fails with and NAND Write error (auth).
I tried all SM-N910P 4.4. versions and all Odins versions but no luck.
I appreciate any responses and assistance with this.
Thanks,
deldes29 said:
Hi,
Need your help. I have a Note 4, Sprint locked, model number SM-N910P, Lollipop Version 5.1.1. I would like it to be unlocked so I can use it in the Philippines. I see a thread that I need to downgrade the ROM then use SSU.apk. When I am trying to have it downgraded, Odin was not able to finish the Job. It always fails with and NAND Write error (auth).
I tried all SM-N910P 4.4. versions and all Odins versions but no luck.
I appreciate any responses and assistance with this.
Thanks,
Click to expand...
Click to collapse
Youre on the OG5 bootloader and you can not downgrade from that bootloader. not even to 5.0.1 lollipop bootloaders.
Might wanna go into Security and uncheck Reactivation Lock as well.
https://dl.twrp.me/trltespr/twrp-2.8.7.0-trltespr.img.tar - Custom Recovery
https://www.androidfilehost.com/?fid=24052804347789588 - Modified Kernel allowing Root (zip file) - flash in recovery
https://download.chainfire.eu/740/SuperSU/BETA-SuperSU-v2.49.zip - SuperSU.zip - flash in recovery
Good luck on the rest of your issue...
Anybody tried these steps listed above to downgrade?

Noob questions- Please help me with rooting! Some specific questions:

Dear Benevolent Android Wizards: please help me root an AT&T S4! I plan to buy a used S4 and want to make sure it can be rooted. Are some firmware versions rootable and some not? If so, which ones? I've seen phones available running I337UCUFNB1 and NJ4, as an example. I tried to check the forums here, but I'm new to this and it's too confusing. Also, as time passes, some of the comments become dated and wrong. One forums here say to downgrade NC1 by flashing NB1, take OTA update to NC1, then OTA to NL1- but I don't know if these OTAs are still available, for example. I'm simple and hope someone can explain things in a simple way! I don't want custom ROMs, just to root and maybe make backups. Please help, O Wise Ones!
You will probably buy a phone with at least 4.4.2 or above. It can be rooted by flashing the NB1 firmware (if it is not already on NB1), flashing the NC1 kernel and rooting with Towelroot. Then you can upgrade to 4.4.4 or 5.0.1, depending on what you want. You can install Safestrap to do backups on KitKat or Flashfire to do backups on Lolipop.
Here is a good place to start reading. Contains all info and links you need.
Thanks a lot!
So you're saying that any S4 running 4.4.2 or 4.4.4 should be able to be rooted?
And I would use Odin to flash NB1 firmware and then NC1 kernel (also using Odin?), then Towelroot would work?
How do I get the phone back to the firmware and kernel it came with?- also with Odin?
Yes. Or 5.0.1 for that matter.
You can root phones with earlier versions of the firmware as well.
All the instructions you need are available in the thread I linked above. You probably don't want to go back to what firmware came on the phone. You will need to decide if you want KitKat, in which case you should flash the latest one, which is NJ5, or Lolipop, in which case you will have some decisions to make as well.
Thanks, I will definitely read that whole thread once I get a chance.
Isn't there some issue with changing firmware where the software changes how the phone interfaces with the cell and wifi radios and they don't work right after you change version? Don't you have to do something to make sure the ROM and radio software stay in sync? Or isn't that an issue when changing stock ROMs with Odin?
Shouldn't be an issue. The stock firmware includes the corresponding modem, but the modems are interchangeable and can be flashed separately. There is a thread dedicated to modems in the general forum.
I would definitely recommend that you read enough to be comfortable with what you are going to do before you flash. There are several good threads in the general forum that you should familiarize yourself with.
Thanks again. I read 10 pages of the thread you mentioned in your first reply:
http://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642
Very helpful
Another question- you said to load NB1 firmware on the phone, but also NC1 kernel, apparently, NC1 is required for towelroot to work. Why not just load NC1 firmware- won't the NC1 kernel will come along? Is NB1 firmware specifically needed for some reason?
Or did you mean to keep upgrading from NB1to reach the final desired firmware, say NL1, then flash the NC1 kernel, root with towelroot, then flash the final desired (in my example, NL1) kernel.
Also, the first section in that link says if you want to end up on Lollipop OC3 or OC4, to root using Kingroot, but warns "there is mixed feeling about this application". Can't I root with towelroot instead to avoid Kingroot?
Sorry! As I learn more it brings up new questions.
xdafan15 said:
Thanks again. I read 10 pages of the thread you mentioned in your first reply:
HTML:
http://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642
Very helpful
Another question- you said to load NB1 firmware on the phone, but also NC1 kernel, apparently, NC1 is required for towelroot to work. Why not just load NC1 firmware- won't the NC1 kernel will come along? Is NB1 firmware specifically needed for some reason?
Or did you mean to keep upgrading from NB1to reach the final desired firmware, say NL1, then flash the NC1 kernel, root with towelroot, then flash the final desired (in my example, NL1) kernel.
Also, the first section in that link says if you want to end up on Lollipop OC3 or OC4, to root using Kingroot, but warns "there is mixed feeling about this application". Can't I root with towelroot instead to avoid Kingroot?
Sorry! As I learn more it brings up new questions.
Click to expand...
Click to collapse
NB1 is the only full stock tar available. There is no full NC1 stock tar, or any other 4.4.2 or above stock tar. No matter which distribution you are on, 4.4.2 4.4.4 or 5.0.1, to go back to stock you have to flash NB1 with Odin.
If you want Lolipop, I would suggest that you root with towelroot, and then use the keep root method to go to OC4.
I'm trying to decide if I should update up to NJ5, OC3, or OC4. Any thoughts about advantages/disadvantages? Should I just update to the latest (OC4) for simplicity?
I don't have an opinion between KitKat and Lolipop.
As far as OC3 or OC4, the OC4 update is just a bug fix update from OC3 that supposedly protects from at least part of the stagefright vulnerability. NJ5 is the same update with respect to JN4.
I'm making more progress on your thread- I'm up to page 20 now and feeling much more comfortable as I see how to deal with (or hopefully avoid) other's problems.
I think I'm almost ready to go, but I know I have one more question- I know that some versions of towelroot need internet access, but when you flash the NC1 kernel onto NB1, you lose wifi. I plan to do this on a phone that will not have data, at least at the beginning. I saw others talk about getting around this and they said they used an earlier version of towelroot that didn't need internet. Do you think that will work for me?
If I get a chance, I'll edit here and list the specific older version.
squatting in this thread because I too have an s4 w/ ni1 bootloader (4.4.2) .. gonna check that thread out too ... (fist bumps @xdafan15 .. me and u are the lone desperados)
got some good help too. check that thread about ALL THINGS ROOT in the general tab.
I found the version of towelroot v3 that doesn't need internet access. It is referenced here in the first post.
File here
 @creepyncrawly or anyone else who knows: Is is OK to use this version to root instead of the normal version of towelroot 3 that needs internet access?
xdafan15 said:
I found the version of towelroot v3 that doesn't need internet access. It is referenced here in the first post.
File here creepyncrawly or anyone else who knows: Is is OK to use this version to root instead of the normal version of towelroot 3 that needs internet access?
Click to expand...
Click to collapse
Go ahead at try it. I don't actually have the S4, so I don't know from first hand experience, but it will either work or it won't. I expect it will work.
I got a surprise- I bought a used S4 and when I checked it, found out it has 4.2.2, MDL- one of the rare ones that was never updated and still has the unlocked bootloader! So all of the work I've been doing was somewhat off target.
Now I guess I need to root 4.2.2 and flash a custom rom to get the phone updated. If I update with the stock firmware it'll lock the bootloader permanently.
I found instructions to root on the first post here "[HOW-TO] The ULTIMATE All-In-One Guide - I337M & MDL - MF3 - MK2"
Is that the correct method?
I wonder if I can just load towelroot and root that way?
Can anyone suggest an updated ROM (preferably one that has been patched against stagefright)?
Do I also flash this phone using Odin? And does the firmware always go in the "AP" slot?
Sorry, I'm trying to learn this and I thought I'd be using the locked bootloader method in the 2nd post.
MDL oh don't let that bad boy ever update. You can root and unroot as often as you like.
Can you please help me understand what to do? I have a Samsung Galaxy s4 with AT&T that I switched to Straight Talk. I need to know how to root this phone but this forum is very confusing and outdated. Plz help me!
Hi, @Tmtd78. The S4 is getting pretty old now so this forum is pretty quiet. What version of android does your phone have? Under *Settings*, *About device*, what are the last 3 characters under *Build number*? I think every version of android on this phone can be rooted, but you will have to spend some time here to learn how everything works. Did you read the posts linked earlier by @creepyncrawly? Read the first and last 10 or 20 pages of each thread of interest and you will get the idea. The method you use will depend on the firmware your phone has. If it has the mdl or mdb bootloader, you probably will want to make sure the firmware doesn't update.
By the way, to @creepyncrawly and @engloa, thanks for your help. I was able to learn how to successfully root my S4, load a custom recovery, make backups, load a custom ROM, and make some tweaks to the kernel. Everything is running well now.
It was a long road, but everything was here on XDA and I appreciate your help.
@xdafan15, the build number is NI1. And I will definitely read the posts. I really appreciate you getting back with me so fast. I'm just scared I'm going to mess something up lol.
Sure thing. I'm not an expert, just a beginner, but I have learned a few things along the way. The NI1 bootloader is locked so you will need to follow the instructions for using Odin under the first post shown above by @creepyncrawly (here). Also, read this one. Also, this.
As long as you are 1) careful to not load code incompatible with an AT&T S4 onto your device and 2) follow instructions EXACTLY you should be fine. Be wary of following instructions listed on a forum that is not specific to the AT&T S4. Don't get sloppy and try to do stuff from memory- read and follow the instructions step by step. The good news is as long as you don't cause as few specific types of problems with your storage, I think you'll be able to Odin back to the NB1 firmware and start over.
Learn how to and practice booting your phone into download and recovery modes.
Get Odin running on your computer and see if it will recognize your device. A guide here. I think .tar or .tar.md5 files always go in the *AP* slot if memory serves. You may also see references to an older version of Odin where the *AP* slot was called *PDA*

Root New Galaxy S5 with Android 5.0 delivered

Hey Guys,
I am a proud owner of a new S5 and I am no root newby as I had any other android devices before.
I read that it was possible to downgrade to 4.2 ANE2 Bootloader in order to root with Towelroot, so I might not trigger KNOX
But I read that the ne Models of the S5 have a locked bootloader, so a downgrade to ANE2 is not possible anymore.
Is this strill true?
I would love to see my Phone rooted but if its not possilble (its still in my package lol) I would rather send it back and decide for another phone -.- since I would like to keep my warranty intact.
Appreciate any answers
Regards!
the first thing when you ask put max information about your phone lol y know s5 have many series 900f 900h 900a and ....
Yup, need the model S5 first, then we can check if it can be rooted or not
Hey
it is 900f sorry I did not mention!
HustleberryFinn said:
Hey
it is 900f sorry I did not mention!
Click to expand...
Click to collapse
Flash this with ODIN
http://download.chainfire.eu/397/CF-Root/CF-Auto-Root/CF-Auto-Root-klte-kltexx-smg900f.zip
If that doesn't work, flash TWRP 2.8.7.0 with ODIN, then flash SuperSu.zip from TWRP recovery
As I said in my beginning post. I would like to have my warranty intact, so I guess rooting with CF Auto Root is not the best Idea, isn't it? (It triggers KNOX)
My Problem is simply, that I would like to know if a downgrade to an earlier bootloader is still possible if the device is delivered with Android 5.0.
You are describing the procedure for towelrooting......flashing an older kernel, using Towelroot and then re - flashing your original kernel. This has worked for many people (myself included) who were on KitKat before they rooted.......
You are on lollipop, this method won't work for you as flashing a KK kernel onto a lollipop firmware will more than likely make the phone unbootable. .....meaning you won't be able to use towelroot at all.
If you want rooted lollipop and knox at 0x0, you'll have to downgrade the entire firmware to KK, towelroot it and use Flashfire to return to your original but root injected lollipop firmware.
http://i.imgur.com/rVnFwJM.jpg
Rooting brand new s5 lollipop
Sorry if this a seems to be noob question (but i did not find any answer nowhere).
I want to root my S5 kltexx (G900F) through Odin3_v3.10.7 with TWRP.tar + UPDATE-SuperSU-v2.46.
Q:
What the difference between them (excepting date of publication and version)?:
- openrecovery-twrp-2.8.4.0-klte.tar
- openrecovery-twrp-2.8.4.0-gt-klte.tar
- twrp-2.8.7.0-klte.img
Which should i use?
Thanks in advance for answer.
triceraptor said:
Sorry if this a seems to be noob question (but i did not find any answer nowhere).
I want to root my S5 kltexx (G900F) through Odin3_v3.10.7 with TWRP.tar + UPDATE-SuperSU-v2.46.
Q:
What the difference between them (excepting date of publication and version)?:
- openrecovery-twrp-2.8.4.0-klte.tar
- openrecovery-twrp-2.8.4.0-gt-klte.tar
- twrp-2.8.7.0-klte.img
Which should i use?
Thanks in advance for answer.
Click to expand...
Click to collapse
lol install the last release if you want to be sure no bug with latest custom roms
@triceraptor The 2.8.7.0 seems to be the only version of TWRP that works with some Lollipop firmwares too......
The 'img' file you quoted won't work with odin....you need the .tar version.
Also, make sure re-activation lock is off before you start......otherwise this WILL interfere with the flash.
You *should* be able to find it under....
Settings>>Security......
http://i.imgur.com/rVnFwJM.jpg
keithross39 said:
You are describing the procedure for towelrooting......flashing an older kernel, using Towelroot and then re - flashing your original kernel. This has worked for many people (myself included) who were on KitKat before they rooted.......
You are on lollipop, this method won't work for you as flashing a KK kernel onto a lollipop firmware will more than likely make the phone unbootable. .....meaning you won't be able to use towelroot at all.
If you want rooted lollipop and knox at 0x0, you'll have to downgrade the entire firmware to KK, towelroot it and use Flashfire to return to your original but root injected lollipop firmware.
Click to expand...
Click to collapse
Hey! Thanks for your post!
My problem is, that it is mentioned that you cannot fully downgrade to KK because the new Devices with Lolli have a locked bootloader. And with that, downgrading to an older KK OS will not do anything because with a modern bootloader its not possible to use towlroot.
So my original intention was simply to find out if it is true - Do the new devices have a locked loader or not.
If your option works, I am glad to try it out, but with a locked loader your advice seems kind of complicated.
To the best of my knowledge. locked bootloaders are carrier specific......
AT&T and (I believe) Verizon are the primary culprits.....There may be 'enhanced security' on newer bootloaders/firmware, but that's a separate issue. If your device is the 'F' variant, which is used mainly in Europe and the UK, a locked bootloader shouldn't be an issue.....It *might* be necessary to flash a .pit file simultaneously to the downgrade though, just to make sure that *every* trace of the LP firmware is removed (this isn't required every time, but is there as an option if needed).
However you play it, it would be best to keep checking to see that re-activation lock is disabled, as this will only lead to issues if it becomes enabled.
http://i.imgur.com/rVnFwJM.jpg
HustleberryFinn said:
Hey! Thanks for your post!
My problem is, that it is mentioned that you cannot fully downgrade to KK because the new Devices with Lolli have a locked bootloader. And with that, downgrading to an older KK OS will not do anything because with a modern bootloader its not possible to use towlroot.
So my original intention was simply to find out if it is true - Do the new devices have a locked loader or not.
If your option works, I am glad to try it out, but with a locked loader your advice seems kind of complicated.
Click to expand...
Click to collapse
I agree with Kieth. I was 90% sure it was carrier specific. You could use the towel root method, but I have rooted my phone the Cf way, and already get 0x1 so there is no point for me. You should be able to flash an older firmware. Then just reset all data and reboot good as old.
Sent from my SM-G900W8 using Tapatalk
keithross39 said:
To the best of my knowledge. locked bootloaders are carrier specific......
AT&T and (I believe) Verizon are the primary culprits.....There may be 'enhanced security' on newer bootloaders/firmware, but that's a separate issue. If your device is the 'F' variant, which is used mainly in Europe and the UK, a locked bootloader shouldn't be an issue.....It *might* be necessary to flash a .pit file simultaneously to the downgrade though, just to make sure that *every* trace of the LP firmware is removed (this isn't required every time, but is there as an option if needed).
However you play it, it would be best to keep checking to see that re-activation lock is disabled, as this will only lead to issues if it becomes enabled.
http://i.imgur.com/rVnFwJM.jpg
Click to expand...
Click to collapse
Hey! Thanks again!
So I tried to downgrade but my screen of my new 900f stays totally black after downgrading.
I found a thread with the same problems - btw u participated in it as well- http://forum.xda-developers.com/galaxy-s5/help/custom-recovery-protection-samsung-t3135004/page8
Do you know any solutions for it? I would really like to use the towlroot method
Did you downgrade with or without pit?
As I mentioned in my earlier reply, the pit will erase EVERY trace of the old firmware from the device. Just make sure you get the CORRECT pit as flashing the wrong pit has the *potential* to permanently brick your device.
http://i.imgur.com/rVnFwJM.jpg
keithross39 said:
Did you downgrade with or without pit?
As I mentioned in my earlier reply, the pit will erase EVERY trace of the old firmware from the device. Just make sure you get the CORRECT pit as flashing the wrong pit has the *potential* to permanently brick your device.
http://i.imgur.com/rVnFwJM.jpg
Click to expand...
Click to collapse
I haven't tried it with a PIT file yet, but ins on my schedule for tomorrow!
Just in Case - I search for tutorials right now - do I have to flash the pit simultaneously or is there any special order I have to do it?
With all my past devices I never had to put so much effort for a root -.-"
Lol.....newer device = bigger headache.
Yes the pit is flashed simultaneously....
Load it into odin as a file with pit extension (kinda obvious that one lol) and then load the firmware tar.....and flash.
Can't stress this enough though.......
MAKE SURE YOU GET THE CORRECT PIT.....
Good luck fella....
http://i.imgur.com/rVnFwJM.jpg
keithross39 said:
Lol.....newer device = bigger headache.
Yes the pit is flashed simultaneously....
Load it into odin as a file with pit extension (kinda obvious that one lol) and then load the firmware tar.....and flash.
Can't stress this enough though.......
MAKE SURE YOU GET THE CORRECT PIT.....
Good luck fella....
http://i.imgur.com/rVnFwJM.jpg
Click to expand...
Click to collapse
Got some time the last hour. With the pit file - worked perfectly and rooted! Knox 0x0.
Thank you very much for your effort!
Glad I could help fella......
http://i.imgur.com/rVnFwJM.jpg
keithross39 said:
Glad I could help fella......
http://i.imgur.com/rVnFwJM.jpg
Click to expand...
Click to collapse
Hey! Same problem again. I had to send the device with the working downgrade back, because the mic was defect -.-
Now I tried to do the Same stuff with PIT file, but this time the Phone screen stays black
(Downgrade to ANE with Pit file. No Samsung Logo and nothing...have to geht to the Downgrad Menu blind in order to Flash the old 5.0 LP OS. Then it works again)
Do you have and other advices for me?

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