[Q] Galaxy S3 - Can I install a custom recovery? (NOT SAFESTARP) - Verizon Samsung Galaxy S III

Since Verizon forced us to update to 4.3 Jellybean back in 2013, Galaxy S3 users using the carrier have been locked out of their bootlader, and, to my knowledge, no one has found a way around this.
Well, I'm kind of tired of the stock ROM my GS3 (running 4.4.2 Kitkat), and it's Touchwiz interface. While I do like it, I would prefer something like Cyanogenmod, however, because of the locked bootloader, I can't install a custom recovery that's not Safestrap, and I already screwed my phone up BADLY using that to the point where the recovery actually deleted my OS and didn't recognize the CM file I tried flashing on it.
I was hoping someone on here would know if there is a way to unlock the bootloader of my GS3, or if there is another recovery I can stick on my phone to use to flash my CM file so I can upgrade to CM12, since it's not terribly likely that Samsung will release a Lollipop update for the device.
ANY help would be appreciated.

DaJesuZ said:
Since Verizon forced us to update to 4.3 Jellybean back in 2013, Galaxy S3 users using the carrier have been locked out of their bootlader, and, to my knowledge, no one has found a way around this.
Well, I'm kind of tired of the stock ROM my GS3 (running 4.4.2 Kitkat), and it's Touchwiz interface. While I do like it, I would prefer something like Cyanogenmod, however, because of the locked bootloader, I can't install a custom recovery that's not Safestrap, and I already screwed my phone up BADLY using that to the point where the recovery actually deleted my OS and didn't recognize the CM file I tried flashing on it.
I was hoping someone on here would know if there is a way to unlock the bootloader of my GS3, or if there is another recovery I can stick on my phone to use to flash my CM file so I can upgrade to CM12, since it's not terribly likely that Samsung will release a Lollipop update for the device.
ANY help would be appreciated.
Click to expand...
Click to collapse
No, you cannot unlock the bootloader or flash a custom recovery other than safestrap. Which means you cannot flash CM on your phone. Many, many people have been working at finding a way to unlock these Samsung bootloaders, and no one has found a way yet. So I doubt anyone will ever find a way to unlock the bootloader.

Does this apply to the T-Mobile version?
Sent from my SM-G900T using XDA Free mobile app

Related

[Q] root for 4.4.2

hey rooters and devs is there a stable 4.4.2 root out right now for verzion without tripping knox?
i took the update to 4.4.2 and i cant even touch mu phone since it sucks makes random noises like a dot when clicking something.
Also, when will be able to start flashing custom roms or 4.4.2. i bricked my phone like 3 times since i didnt unlock the boot loader but now i can actually flash the roms.
TL,DR root for 4.4.2 without tripping know
when will we be able to flash cyanogenmod
broazny said:
hey rooters and devs is there a stable 4.4.2 root out right now for verzion without tripping knox?
i took the update to 4.4.2 and i cant even touch mu phone since it sucks makes random noises like a dot when clicking something.
Also, when will be able to start flashing custom roms or 4.4.2. i bricked my phone like 3 times since i didnt unlock the boot loader but now i can actually flash the roms.
TL,DR root for 4.4.2 without tripping know
when will we be able to flash cyanogenmod
Click to expand...
Click to collapse
The only root exploit for VRUDNE1 4.4.2 that works on our phone is "Towelroot" by Geohot which is in the S5 section.
Once rooted, these things apply to everyone on VRUDNE1 4.4.2 as well as anyone on 4.3 VRUCML1 or VRUCNC1 OTAs:
a) You can NOT install a custom recovery (No CWM, No TWRP, nothing)
b) You can NOT install any AOSP rom
c) You can NOT install a custom kernel
d) Only an unofficial version of Safestrap can be used on VRUDNE1. This is not a custom recovery, Safestrap is NOT a custom recovery.
e) As of 8:50 EST, there is no custom VRUDNE1 TouchWiz rom to install. Safestrap hijacks the bootprocess and only uses the stock kernel, in your case stock VRUDNE1 4.4.2 kernel, in order to boot other custom TouchWiz roms. Only VRUDNE1 roms would be able to successfully flash on your phone. But none exist yet.
Literally all that you can do as of this post is root, debloat, install Safestrap, and hope that you will be able to use custom VRUDNE1 based TouchWiz roms.
back to 4.3
will i be able to odin back to 4.3 without tripping knox and locking the bootloader?
SlimSnoopOS said:
The only root exploit for VRUDNE1 4.4.2 that works on our phone is "Towelroot" by Geohot which is in the S5 section.
Once rooted, these things apply to everyone on VRUDNE1 4.4.2 as well as anyone on 4.3 VRUCML1 or VRUCNC1 OTAs:
a) You can NOT install a custom recovery (No CWM, No TWRP, nothing)
b) You can NOT install any AOSP rom
c) You can NOT install a custom kernel
d) Only an unofficial version of Safestrap can be used on VRUDNE1. This is not a custom recovery, Safestrap is NOT a custom recovery.
e) As of 8:50 EST, there is no custom VRUDNE1 TouchWiz rom to install. Safestrap hijacks the bootprocess and only uses the stock kernel, in your case stock VRUDNE1 4.4.2 kernel, in order to boot other custom TouchWiz roms. Only VRUDNE1 roms would be able to successfully flash on your phone. But none exist yet.
Literally all that you can do as of this post is root, debloat, install Safestrap, and hope that you will be able to use custom VRUDNE1 based TouchWiz roms.
Click to expand...
Click to collapse
broazny said:
will i be able to odin back to 4.3 without tripping knox and locking the bootloader?
Click to expand...
Click to collapse
No, you can not downgrade once on 4.4.2 VRUDNE1.
thank you very much, do you know when the devs will be able to find a way to downgrade or unlock the bootloader
SlimSnoopOS said:
No, you can not downgrade once on 4.4.2 VRUDNE1.
Click to expand...
Click to collapse
broazny said:
thank you very much, do you know when the devs will be able to find a way to downgrade or unlock the bootloader
Click to expand...
Click to collapse
I'll be blunt with you, I sincerely doubt that's being actively worked on for our 2 year old device. The bootloader has yet to be unlocked on the S4 which has had an active bounty with numerous devs so its not happening here. If AOSP means that much to you, sell your S3 for a bootloader unlocked S3 or get another device which has less hurdles to get AOSP.
Edit: Or you can email these guys at MobileTechVideos and see if their S3 bootloader downgrade process works on 4.4.2. It is a paid service either way, but some people have considered this when on 4.3.
SlimSnoopOS said:
I'll be blunt with you, I sincerely doubt that's being actively worked on for our 2 year old device. The bootloader has yet to be unlocked on the S4 which has had an active bounty with numerous devs so its not happening here. If AOSP means that much to you, sell your S3 for a bootloader unlocked S3 or get another device which has less hurdles to get AOSP.
Edit: Or you can email these guys at MobileTechVideos and see if their S3 bootloader downgrade process works on 4.4.2. It is a paid service either way, but some people have considered this when on 4.3.
Click to expand...
Click to collapse
Is there any successes to this downgrade of the bootloader of the link that you sent? I'm not on a s4 I'm on a SCH-I535 sgs3 same as s4 if I'm correct.. Correct me if I'm wrong s4 and s3 have a lot of the same stuff
jcbjoe said:
Is there any successes to this downgrade of the bootloader of the link that you sent? I'm not on a s4 I'm on a SCH-I535 sgs3 same as s4 if I'm correct.. Correct me if I'm wrong s4 and s3 have a lot of the same stuff
Click to expand...
Click to collapse
I haven't seen anyone report back on having used this. I figured someone would have done so and posted on xda but, nothing. That link is for the Verizon S3 btw. The S4 was mentioned just for comparison purposes only.
Sent from my SCH-I535 using Tapatalk 4
SlimSnoopOS said:
I haven't seen anyone report back on having used this. I figured someone would have done so and posted on xda but, nothing. That link is for the Verizon S3 btw. The S4 was mentioned just for comparison purposes only.
Sent from my SCH-I535 using Tapatalk 4
Click to expand...
Click to collapse
I originally saw it on XDA. Josh inadvertently reverted one while doing a JTag service. He was able to reproduce it several times in testing. Most don't even know about it till they brick their device and need JTag service.

[Q] Galaxy S3 Verizon 4.3 TWRP?

I just got a Verizon Galaxy S3 and I want to install Cyanogenmod 11 on it. I am familiar with installing it however I am not familiar with how to install a custom recovery on this device. It has the 4.3 update. I have tried all of the ways depicted on TWRP's website to no avail. I am willing to use any recovery necessary to install Cyanogenmod. Please help me! I can't stand TouchWiz!
southpaw5271 said:
I just got a Verizon Galaxy S3 and I want to install Cyanogenmod 11 on it. I am familiar with installing it however I am not familiar with how to install a custom recovery on this device. It has the 4.3 update. I have tried all of the ways depicted on TWRP's website to no avail. I am willing to use any recovery necessary to install Cyanogenmod. Please help me! I can't stand TouchWiz!
Click to expand...
Click to collapse
Im sorry but Verizon locked down the bootloaders on 4.3-4.4. Most recent unlockable bootloader is on 4.1.2. You can use a downgrading service at mobile tech videos to go back to 4.1.2 and unlock your bootloader for fifty bucks. But for now, you're stuck with safestrap and TW based roms. Sorry dude.
Sent from my Unlocked SCH-I535 running whatever rom I've chosen for the day.

[Q] T-Mobile ROM on Verizon S3

I bought a Samsung Galaxy S3 (SCH-I535) Verizon on Ebay. My service has been with T-Mobile for about 10 years so I don't want to switch carriers. I have unlocked the phone and am running a T-Mobile SIM card. I have text, talk, and limited data (Edge). Still have the stock ROM and stock recovery. The phone is rooted and running 4.4.2 Kit Kat. The bootloader is still locked and I have installed and ran quite a number of apps trying to unlock it. I read where Safestrap 3.71 would work but when I install it and boot to recovery, I still have stock Verizon recovery. It is loaded with bloatware and I would really like to install a custom ROM that is written specifically for T-Mobile.
Is there any way to downgrade this phone to Jelly Bean and get it completely unlocked with a custom recovery and rom? Preferably using a form of d2tmo?
bcook0407 said:
I bought a Samsung Galaxy S3 (SCH-I535) Verizon on Ebay. My service has been with T-Mobile for about 10 years so I don't want to switch carriers. I have unlocked the phone and am running a T-Mobile SIM card. I have text, talk, and limited data (Edge). Still have the stock ROM and stock recovery. The phone is rooted and running 4.4.2 Kit Kat. The bootloader is still locked and I have installed and ran quite a number of apps trying to unlock it. I read where Safestrap 3.71 would work but when I install it and boot to recovery, I still have stock Verizon recovery. It is loaded with bloatware and I would really like to install a custom ROM that is written specifically for T-Mobile.
Is there any way to downgrade this phone to Jelly Bean and get it completely unlocked with a custom recovery and rom? Preferably using a form of d2tmo?
Click to expand...
Click to collapse
Since you have a d2vzw you cannot run a d2tmo rom on a verizon phone. You can however run a d2lte rom on any S3 LTE variant. If you want to hard brick your phone you can run a tmo rom however I wouldn't ever recommend that
From my CM11 S3
Also, you cannot downgrade to jelly bean and you cannot unlock the bootloader.
landshark68 said:
Also, you cannot downgrade to jelly bean and you cannot unlock the bootloader.
Click to expand...
Click to collapse
I'm normally pretty good about remembering the bootloader thing. Must of been daydreaming that time, thanks man
From my CM11 S3

cyanogenmod on s3

hey guys, so im sure many have tried to put cyanogenmod on a VZW Samsung Galaxy s III with 4.4.2 OTA on it. but couldnt. im really looking to put CM11 on it. im very much so new to rooting, and flashing roms, but i already rooted my device, and flashed the stock firmware back, due to not having a CWM back up and getting "system software not authorized by verizon" warning.
so my question.
can i downgrade my firmware from 4.4 to earlier to have an unlocked bootloader without bricking it? do i need to go to 4.3 and then 4.1.2?
because before 4.3 it had an unlocked bootloader.
I really want CM because i cant stand touchwiz anymore. thanks guys . help a newb out
oh and. should i use towel root? or another rooting method
Your now on the locked bootloader and you cannot downgrade to another firmware. You can root with towelroot but that's truly about all you can do
From my CM11 S3

Is there a way to unlock the bootloader of the Verizon Galaxy S III on 4.4.2?

Hello XDA Developers!
This is my first post here.
Last year I was looking for a way to install Cyanogenmod on my aging SCH-I535. I rooted my phone with towelroot, but I saw I was unable to install a custom rom due to Verizon's locked bootloader. I was on the latest update (4.4.2) and there was no known way to unlock my phone's bootloader at the time.
Today I tried to connect my Xbox One controller to my phone via the USB/BT Joystick Center app, and I was prompted to install a custom rom that allows the application to access my controller. Bummer. I looked for a workaround and I noticed that there's still Cyanogenmod development being done on the Verizon S3, and that there were many others using the rom. Now I really want to install Cyanogenmod. How do they do it? Did they have a custom rom before the new update rolled in?
I considered flashing an older stock rom to get the old bootloader, but I heard that only bricks it.
pinkfang said:
Hello XDA Developers!
This is my first post here.
Last year I was looking for a way to install Cyanogenmod on my aging SCH-I535. I rooted my phone with towelroot, but I saw I was unable to install a custom rom due to Verizon's locked bootloader. I was on the latest update (4.4.2) and there was no known way to unlock my phone's bootloader at the time.
Today I tried to connect my Xbox One controller to my phone via the USB/BT Joystick Center app, and I was prompted to install a custom rom that allows the application to access my controller. Bummer. I looked for a workaround and I noticed that there's still Cyanogenmod development being done on the Verizon S3, and that there were many others using the rom. Now I really want to install Cyanogenmod. How do they do it? Did they have a custom rom before the new update rolled in?
I considered flashing an older stock rom to get the old bootloader, but I heard that only bricks it.
Click to expand...
Click to collapse
You are on a locked bootloader. You cannot flash custom roms, only roms that are specifically for safestrap which is the only recovery option you have other than stock. And there are only a few bootloader locked roms.
CM is only for unlocked bootloaders. You basically had to unlock your bootloader prior to the 4.3 NC1 update otherwise your stuck.
Nexus 6 via VRToxin
There is, buuuuut you either have to be able to solder 3 spots in millimeters of each other precisely, or shell out $50 to have it done.
By using a jtag, it is possible on the Verizon variant to downgrade. Here's a link http://http://www.mobiletechvideos.com/samsung-galaxy-s-iii-s3-bootloader-downgrade-service/
I've sent a few people his way and all had stellar reviews. He's the only dude around I know of that offers such a service. He even offers quicker shipping offers now too. Worth checking out if you can go a few days without your phone
---------- Post added at 12:00 PM ---------- Previous post was at 11:59 AM ----------
http://www.mobiletechvideos.com/samsung-galaxy-s-iii-s3-bootloader-downgrade-service/
Sorry, original link didn't render right for some reason

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