Database Users

[Q] Help - ATT S4 unbootable - I337UCUFNJ4

So, I'm a noob when it comes to flashing custom ROMs. I've had my S4 rooted for a while and have had no issues. Decided recently to try a custom ROM.
I tried installing UltimaROM (http://forum.xda-developers.com/showthread.php?t=2537495) and everything seemed to work fine during install, but once the final reboot happened I am stuck in a Download Mode loop. Reading more, I am now not so sure this ROM will work on my phone (duh.) I am assuming that I am going to have to use Odin to flash a stock ROM back to my phone.. is this true? And, if so, how can I tell which ROM to install? I looked at the SamMobile site and there are two f/w downloads that appear to apply to my phone, but they are labeled I337UCUAMDL and I337UCUAMDB. Neither one of these seem to match what I was at, so I'm not sure if I should use either.
Any help would be greatly appreciated.
P.S. I did use Safestrap/TWRP to take a full backup of my phone before trying to install the ROM. Is there any way to flash just a new recovery and do a restore, instead of flashing a full stock ROM back?

You're right that the rom won't work with safestrap. You'll have to Odin the nb1 tar file. Look in the general forum for it
Sent from my Nexus 5 using XDA Free mobile app

Thanks. I'm trying that now.

Flashing a stock recovery on a SM-G900P

Hi there, I rooted this phone a while back and for some reason decided to also load a custom recovery (Pretty sure it's TWRP) even though I was using stock firmware and just wanted root. Now the phone's trying to do an OTA and it won't work of course because of my custom recovery. I was wondering if someone had a link to a stock recovery I could flash via ODIN/Heimdall? Thanks!
P.S. If you could include a step-by-step on what I need to do, that'd be nice. As far as I remember it's just putting the phone in Download Mode and flashing the .tar file via ODIN.

stock firmware for t-550

Does anyone have a link to the stock firmware for the t-550? I just picked up this tablet, upgraded to mashmallow,had twrp installed thru odin. Then I wasnt paying attention, never made a backup, then installed the deoxed rom from ashyx, it wouldn't boot up. I tried the firmware thru sammobile, when I tried to install it, and it said it couldn't find the meta-inf file, I can get to odin mode, and twrp, but I can not find a link to a firmware I can get to load. Any help will be greatly appreciated.

Install with ODIN not TWRP.

Thanks, what box do I need have check, do I add it in the AP slot, like the twrp?

thew-tab said:
Thanks, what box do I need have check, do I add it in the AP slot, like the twrp?
Click to expand...
Click to collapse
Leave all at default, put in AP and hit start

Thanks, most of my tablet experience isn't with odin, I look foward to trying your rom.

thew-tab said:
Thanks, most of my tablet experience isn't with odin, I look foward to trying your rom.
Click to expand...
Click to collapse
Was actually referring to the stock firmware.
The deodexed rom needs to be installed via twrp and you would need to be running the same firmware base.

Upgrading to 6.0 on I337

I have been trying to upgrade my 4.4.2 s4 I337 to 6.0 marshmellow and am having many problems. Also I am EXTREMELY new to anything android or flashing or anything like this at all, I learned everything I know just today.
I rooted my phone using the towelroot method because it was the easiest for my phone. I am also using safestrap recovery because I think my phone is bootloader locked? I was having a lot of problems trying to install twrp so I just assumed it was that. I'm using usb debugging and I am using the 6.0 pico gapps.
I have tried multiple roms using safestrap and making sure that the rom is specifically for my phone, at&t and I337 but each time the rom shows it was successful and I reboot it goes to recovery booting and says I don't have an OS and I have to recover back to stock firmware using odin, beccause I did a full wipe before each install of the roms.
If there is any other info I might have missed or have anything to help me I would greatly appreciated it, and again I basically have no idea what I am doing and am just going off of trial and error and googling what every term means. Thank you
Edit: My bootloader is NB1 if that matters also.
Edit: Doing a little more searching is it even possible for me to get 6.0 with my phone?

The bootloader on your phone is locked and cannot run any custom ROMs unless it is a rom that is based on a stock Samsung ROM; therefore, a 6.0 ROM or higher is not possible. Also, Lineage, RR, etc. is not possible.

audit13 said:
The bootloader on your phone is locked and cannot run any custom ROMs unless it is a rom that is based on a stock Samsung ROM; therefore, a 6.0 ROM or higher is not possible. Also, Lineage, RR, etc. is not possible.
Click to expand...
Click to collapse
Thank you for the reply! After a lot more researching and doing very stupid stuff (it was all for fun and learning mostly anyway) I did brick my phone saying firmware upgrade encountered an issue I can only get to download mode I tried flashing the original firmware I had using the stock 4.4 nb1 file but that is also now failing in odin, do you have any suggestions that could work?
Edit: I tried flashing to mk2 and thats how it bricked, but shouldn't I be able to go back to my stock firmware even if I bricked my phone like this? Both the towelrootable stock nb1 4.4 and the normal stock nb1 4.4 isnt working when I try to flash them in odin

You should flash the same or newer ROM to the phone. Even though the phone says it encountered an error, you can still flash the phone with Odin with this message in the screen.
Hopefully, this thread will help: https://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642

audit13 said:
You should flash the same or newer ROM to the phone. Even though the phone says it encountered an error, you can still flash the phone with Odin with this message in the screen.
Hopefully, this thread will help: https://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642
Click to expand...
Click to collapse
I'm probably jinxing it by typing while its still working but I switched my usb cable and so far it hasn't failed when before it would fail immediatly, thank you for all the help!

Only the MDL bootloader can run non touchwiz ROMs. All other bootloaders can only run touch wiz based ROMs.

Bricked my S8+?

I was trying to flash twrp onto my phone to install a custom rom, but I think it failed and now my phone is stuck at the samsung logo
I have tried to flash this BL
https://drive.google.com/file/d/0B0pBZnf22V4qUEVsWTUwOWJwdkE/view
But its not working, any ideas please?
Thanks!

cooperjazzy55 said:
I was trying to flash twrp onto my phone to install a custom rom, but I think it failed and now my phone is stuck at the samsung logo
I have tried to flash this BL
https://drive.google.com/file/d/0B0pBZnf22V4qUEVsWTUwOWJwdkE/view
But its not working, any ideas please?
Thanks!
Click to expand...
Click to collapse
Can you go to to download mode? If so go there. Then, flash the official firmware for your phone with Odin ; you can look up tutorials on how to do this on YouTube. If not send your phone to Samsung and pray your warranty is not voided as I did this for my S8 when I bricked it. Also bricked means when your phone cannot turn off at all. Bootloop is when the bootloader loops.

Ok so managed to get onto ice Rom but when I try to flash stock firmware back through odin I just get an error?

cooperjazzy55 said:
Ok so managed to get onto ice Rom but when I try to flash stock firmware back through odin I just get an error?
Click to expand...
Click to collapse
If you have a custom rom now why go back to stock? And without the specific error we can't help much
Post the odin log and I can help

Ive decided to stay on ice as its got more benefits than stock lol