[Galaxy S 5 Q&A, Help & Troubleshooting] fluffyseal:
So About 2 months ago, I attempted to downgrade from lolipop 5.0 to kitkat 4.4.2. After seeing 30+ guides that were more or less identical all claiming success, I tried flashing The kitkat firmware, and instead of downgrading ended up with my phone stuck in a bootloop. Now after seeing another 30+ guides on how to fix your softbricked phone, all claiming success, downloading countless files, including 4 or 5 different versions of odin, I have made no progress. I made a thread about a month ago asking for tar files for the lolipop 5.0 firmware. I got several responses, directing me twoards links that they hadnt even bothered to check if it contained the 5.0 firmware, because the websites didnt. None of the "official sites where you'd get android firmware from have the lolipop 5.0 firmware. NOTICE: PLEASE DO NOT SUGGEST FLASHING STOCK FIRMWARE, OR FLASHING VARIOUS VERSIONS OF KITKAT, I HAVE TRIED THIS AT LEAST 50 TIMES IN 4 DIFFERENT VERSIONS OF ODIN, YOU CAN NOT DOWNGRADE. idk if this is the same for all android phones, but when your phone is stuck in a bootloop, you cannot charge the battery. So after spendings over 15 hours trying to fix my phone and taking a road trip, I came back to find my battery dead. After getting back I bought a micro sd card for my phone. However connecting your phone to your computer will not let you enter recovery mode. Therefore the 5.0 firmware I had on the sd card could not be copied to my phone through recovery mode (I have found lolipop 5.0 firmware, however it isnt flashable, rather it is a large collection of various file types and sub folders.) Eventually I was able to recharge my battery by flashing/installing twrp recovery. The next day I copied the 5.0 firmware from the sd card to the phone. At first it appeared to work" "installing update" then it rebooted and bam, back to the twrp recovery mode screen. With twrp recovery on, I am not able to access normal recovery mode, just download mode and the modified recovery mode.

Here is the screen when my s5 boots:

[red text] android system recovery <3e>

KOT49H.G900AUCU1ANCE

volume up/down to move highlight;

power button to select [/red text]

[blue text] reboot system now

apply update from ADB

apply update from external storage

wipe data/factory reset

wipe cache partition

apply update from cache [/blue text]

picture of dead android centered with its chest open and red triangular exclamation sign in chest

directly underneath the android: no command.

# MANUAL MODE #

-- Appling Multi-CSC...

Applied the CSC-code : ATT

Successfully applied multi-CSC

thats whats on the screen, please ignore the code tags, that was stating the color of the text

Now ive tried messing around with ADB from the android sdk but all of those commands arent recognized by windows cmd. I've read several tutorials to try and get them recognized but cant find any of the needed files because where the files are saved on your pc appear to have competely changed since the tutorials are made. Im also not sure if I should or How to remove twrp recovery.

Just to specify again, I have a Samsung Galaxy S5 g900A (AT&T) that was running some early varriant of Lolipop 5.0 (updated in may) before it unfortunately lost its operating system.

I believe you are unable to post links here so please send them to meowmix226(at)gmail(dot)com with xda as the subject

If any of you kind souls on xda can fix this, you will be rewarded.

Any help or new insights is greatly appreciated

thank you

-Kyle