[GUIDE] Unlocking the Galaxys S5 Bootloader using DEV Bootloader [KK-MM]

samccfl99

Senior Member
Jan 2, 2013
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COCONUT CREEK, FL
Appears the key is different for ATT. That's really interesting since they never released a Developer Edition for ATT.
Thank you so much for taking the time to look at this, all of you geniuses out there.

Another screwjob by ATT. So sad. G935F here I come in June when I own my G900A. Hate to spend the money.

Hoping that when "M" comes to the G900A maybe next month that @muniz_ri will be able to do his magic to not update the BL again and maybe we can attain root. Of course that will not do anything for custom rom dev.

BOO-HOO...:crying:::laugh::D

THANKS AGAIN FOR ALL THE WORK!!! MAYBE A MIRACLE WILL HAPPEN. LUCKY G900V USERS!!!
 
Mar 22, 2013
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Kent
S5 Unlock help

okay so one user who commented noticed that in the batch file for pull the team accidentally put push twice i fixed it it pulled now im stuck at the screenshot attached Screenshot_3.jpg

ive done this numerous times back on my razr m but for whatever reason it cant find the said directory even though i can navigate to it on my phone if i try the second method i get directory not found so can someone help me what am i doing wrong
 

samccfl99

Senior Member
Jan 2, 2013
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COCONUT CREEK, FL
I feel a bit stupid for failing to mention this, but sometimes I forget, I'm on an AT&T s5 active. From my assumption, there isn't much of a difference though. Maybe someone with an original s5 should give it a shot, you have nothing to lose.

Thanks and sorry for the confusion.
Well I am not that bold. I will own my G900A in June, so I do not want to kill it.

Thank you for doing this testing, but please don't bite the hand that feeds us. We need our devs. I know it is sooooo frustrating that ATT sucks so bad, but we should not take it out on people.

What I do not understand is that you can get an international phone with an unlocked bootloader and use it on ATT, but they won't unlock one of theirs for you. PLUS THEY SELL "CERTIFIED LIKE NEW" NEXUS 6's ON THE NEXT PLAN ($17 a month)...:rolleyes: They truly suck!!!

I will be watching this thread. Maybe someone will figure it out. I am on OC4 with custom rom, which I love, but would like to play some. Spending $700 on a new phone sounds crazy. I could almost get a new desktop for that...LOL.
 

N4styN1ghtm4r3

Senior Member
Dec 7, 2014
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Well I am not that bold. I will own my G900A in June, so I do not want to kill it.

Thank you for doing this testing, but please don't bite the hand that feeds us. We need our devs. I know it is sooooo frustrating that ATT sucks so bad, but we should not take it out on people.

What I do not understand is that you can get an international phone with an unlocked bootloader and use it on ATT, but they won't unlock one of theirs for you. PLUS THEY SELL "CERTIFIED LIKE NEW" NEXUS 6's ON THE NEXT PLAN ($17 a month)...:rolleyes: They truly suck!!!

I will be watching this thread. Maybe someone will figure it out. I am on OC4 with custom rom, which I love, but would like to play some. Spending $700 on a new phone sounds crazy. I could almost get a new desktop for that...LOL.
Oh, I'm not biting the hand that feeds, trust me. I've just followed this thread post by post and he had an attitude with a lot of people, it's uncalled for.

As for giving it a shot, if you're comfortable doing this kind of thing, just know you don't have a chance of bricking it so long as you follow the instructions closely. Worst case scenario is it won't unlock. I have an active and ran both methods without an issue whatsoever, it just didn't unlock.
 

landshark68

Senior Member
Jan 13, 2011
1,265
710
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Illinois
So guys I have twrp installed when it comes to custom roms now for Android M for the S5 are we limited to CM13 really or does anyone know if there is any Touchwiz based Android M roms mostly for my gear S otherwise guess I'll install CM13
Android M has not been release for the retail Verizon GS5, so therefore there are no Touchwiz based Android M ROMs.
 

lickwid

Senior Member
Jul 15, 2008
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you either pushed the file int he wrong spot or ran cd wrong
First my assumptions is that I don't need access to ADB tools or a computer if I'm doing Method 2.
and I'm using the "Terminal Emulator for Android" app by Jack Palevich, top result in Play Store.

I feel like a noob, but when you're referring to the internal storage, are you referring to:
a) / -> root of the phone
b) /storage/sdcard0 or /storage/emulated/0 -> root of the internal SDcard
c) /root/ -> root directory on phone

I basically copied the samsung_unlock.bin file to all those directories, just in case.

Also for clarity, in step 6, "cd /storage/sdcard/0/" -> shouldn't this be either "cd /storage/sdcard0/" or "cd /storage/emulated/0"?

When I put type in "chown root.root samsung_unlock", I still get either the error "No such file or directory" or I also got "bad mod" when I was messing with running the command for different directories.

I must be missing a simple step or something. I am far from an expert, but I understand basic unix/linux commands.
 
Mar 22, 2013
21
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Kent
First my assumptions is that I don't need access to ADB tools or a computer if I'm doing Method 2.
and I'm using the "Terminal Emulator for Android" app by Jack Palevich, top result in Play Store.

I feel like a noob, but when you're referring to the internal storage, are you referring to:
a) / -> root of the phone
b) /storage/sdcard0 or /storage/emulated/0 -> root of the internal SDcard
c) /root/ -> root directory on phone

I basically copied the samsung_unlock.bin file to all those directories, just in case.

Also for clarity, in step 6, "cd /storage/sdcard/0/" -> shouldn't this be either "cd /storage/sdcard0/" or "cd /storage/emulated/0"?

When I put type in "chown root.root samsung_unlock", I still get either the error "No such file or directory" or I also got "bad mod" when I was messing with running the command for different directories.

I must be missing a simple step or something. I am far from an expert, but I understand basic unix/linux commands.
ive tried both file paths on my computer for method one and on my phone for method two got errors both time about those not being directories
 

smtpher

Member
Jul 16, 2013
22
5
0
First my assumptions is that I don't need access to ADB tools or a computer if I'm doing Method 2.
and I'm using the "Terminal Emulator for Android" app by Jack Palevich, top result in Play Store.

I feel like a noob, but when you're referring to the internal storage, are you referring to:
a) / -> root of the phone
b) /storage/sdcard0 or /storage/emulated/0 -> root of the internal SDcard
c) /root/ -> root directory on phone

I basically copied the samsung_unlock.bin file to all those directories, just in case.

Also for clarity, in step 6, "cd /storage/sdcard/0/" -> shouldn't this be either "cd /storage/sdcard0/" or "cd /storage/emulated/0"?

When I put type in "chown root.root samsung_unlock", I still get either the error "No such file or directory" or I also got "bad mod" when I was messing with running the command for different directories.

I must be missing a simple step or something. I am far from an expert, but I understand basic unix/linux commands.
What does the terminal say if you run "ls -l"?
 
Mar 22, 2013
21
6
0
28
Kent
Jeez, you want an ETA next??:p
didn't think it was that much to ask considering i was hammering at this all night to get it to ****ing work and all that was accomplished was me formatting my phone internally and forgetting i hadn't given it anything to boot too so that was a fun adventure but this unlock hasn't worked for me yet and yes im running on a verizon s5 but errors left and right. so i dont think its a problem i ask for a bit of help since this instructions were hard to interpret
 

TioCareca

Senior Member
Sep 8, 2010
2,451
1,159
193
Barreiro
So i follow the op and i have dev bootloader, i flash twrp and cm13 and lost imei... Any idea?


EDIT: I flash stock by odin and recovered imei...
 
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N4styN1ghtm4r3

Senior Member
Dec 7, 2014
55
9
0
@beaups sorry for bothering you once again, but I failed to mention that my s5 is an s5 active. Would that be enough difference to stop this from working, or would an original s5 still have a possibility of unlocking. I'm corresponding with the folks on the AT&T forum, so would just like some insight if possible.

Thanks again!!
 

samccfl99

Senior Member
Jan 2, 2013
1,250
423
83
COCONUT CREEK, FL
As for giving it a shot, if you're comfortable doing this kind of thing, just know you don't have a chance of bricking it so long as you follow the instructions closely. Worst case scenario is it won't unlock. I have an active and ran both methods without an issue whatsoever, it just didn't unlock.
Well I am no novice and I am rooted with custom rom(s), but if the wise ones say it won't work, then I tend to believe them. It seems the only way to really tell is to do it and try to flash TWRP. People keep saying that FF flashes TWRP, but who knows on the G900A. I suppose using Odin it might tell you right away it would not work. I do not know much about a real recovery, just SS. I see some people on the G900V are even having problems.

Still I will be watching the thread.
 
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N4styN1ghtm4r3

Senior Member
Dec 7, 2014
55
9
0
Well I am no novice and I am rooted with custom rom(s), but if the wise ones say it won't work, then I tend to believe them. It seems the only way to really tell is to do it and try to flash TWRP. People keep saying that FF works, but who knows on the G900A. I suppose using Odin it might tell you right away it would not work. I do not know much about a real recovery, just SS. I see some people on the G900V are even having problems.

Still I will be watching the thread.
Oh I understand, and if you want to wait, that's your choice, I just haven't heard if it would make a difference between an original and an active.