EngBoots? Devs only

[stifilz]

Hi all,

Came across this in my travels

Hopefully it is legit.
Can someone (perhaps a DEV) more Samsung orientated than myself check this out....
http://forum.gsmhosting.com/vbb/f453/sprint-s7-unlock-baseband-pe1-2106757/#post11896376


Looks to be EngBoot for G930P/G935P and possiblly other QCOMM based models, hence posting in the T-Mobile forum (as it seems more active).

Thanks

Stifilz

P.S if nothing comes from this feel free to edit/delete this thread... just trying to help out everyone in a tight spot

 

[ktetreault14]

Just downloaded. Before I flash anything which I won't unless loafs of people confirm lol. Putting on my Linux box and untarring

Sent from my SM-G935T using XDA-Developers mobile app

 

[guaneet]

Just downloaded. Before I flash anything which I won't unless loafs of people confirm lol. Putting on my Linux box and untarring

Sent from my SM-G935T using XDA-Developers mobile app

it worked for me, now shows RCS icon and VoLTE icon in statusbar

you will lose wifi passwords upon restarting your phone as well as turning Wi-Fi on and off. and a security notice will appear which can be removed by freezing security log(i think you know what im talking about)

kernel is dated for april 22
Also I just Odin'd the zip file under AP. Didnt unzip it

 

[guaneet]

Here are a couple pics for reference.

 

[ktetreault14]

Damn guaneet you risked it Lol. Nice though good thing it still boots. Any super user?

Sent from my SM-G935T using XDA-Developers mobile app

 

[stealthee]

it worked for me, now shows RCS icon and VoLTE icon in statusbar

you will lose wifi passwords upon restarting your phone as well as turning Wi-Fi on and off. and a security notice will appear which can be removed by freezing security log(i think you know what im talking about)

kernel is dated for april 22
Also I just Odin'd the zip file under AP. Didnt unzip it

Is your phone the tmobile 935t? and if so did you flash the 930 or 935 ?

 

[ShrekOpher]

it worked for me, now shows RCS icon and VoLTE icon in statusbar

you will lose wifi passwords upon restarting your phone as well as turning Wi-Fi on and off. and a security notice will appear which can be removed by freezing security log(i think you know what im talking about)

kernel is dated for april 22
Also I just Odin'd the zip file under AP. Didnt unzip it

So flashing the ENG Boot break WiFi? Does it give you the ability to flash SuperSU.zip? Have you tried using a systemless root zip? Now that it has been a day or so have you come across any other issues with the flash?

Thanks!

 

[stealthee]

Is your phone the tmobile 935t? and if so did you flash the 930 or 935 ?

Ok to answer my own question. I have the SM-935t and I flashed the one for 935p and it would not boot was stuck on the tmobile screen then it would reboot again. Held down the power vol up and home for what seemed like forever and got it into recovery where i did a factory wipe and wiped cache. And it booted through the phone setup and now is working. Now to discover what I can do.

 

[TechBSwift]

Ok to answer my own question. I have the SM-935t and I flashed the one for 935p and it would not boot was stuck on the tmobile screen then it would reboot again. Held down the power vol up and home for what seemed like forever and got it into recovery where i did a factory wipe and wiped cache. And it booted through the phone setup and now is working. Now to discover what I can do.

The guy who released the file suggested reflashing the stock firmware if you run into any issues and flashing the tar file again. Seems the phone needs to be stock setup (nothing stock disabled) prior to flashing this file.

---------- Post added at 10:46 AM ---------- Previous post was at 10:44 AM ----------

Ok to answer my own question. I have the SM-935t and I flashed the one for 935p and it would not boot was stuck on the tmobile screen then it would reboot again. Held down the power vol up and home for what seemed like forever and got it into recovery where i did a factory wipe and wiped cache. And it booted through the phone setup and now is working. Now to discover what I can do.

Can you do me a favor and check KNOX? I'm getting ready to test on the Verizon S7 Edge but I'm curious if KNOX will be triggered to 0x1.

 

[ktetreault14]

This is tempting but I only have a raspberry pi to help me recover. Can't find out how to extract tar and flash in heimdall. When I do it is just 2 files under 2mb

Sent from my SM-G935T using XDA-Developers mobile app

 

[stealthee]

The guy who released the file suggested reflashing the stock firmware if you run into any issues and flashing the tar file again. Seems the phone needs to be stock setup (nothing stock disabled) prior to flashing this file.

---------- Post added at 10:46 AM ---------- Previous post was at 10:44 AM ----------



Can you do me a favor and check KNOX? I'm getting ready to test on the Verizon S7 Edge but I'm curious if KNOX will be triggered to 0x1.

Still showing 0x0

 

[ktetreault14]

Mhh. Just reenabled everything. Gonna try flashing. Hope it works as I don't have a backup

Sent from my SM-G935T using XDA-Developers mobile app

Flashed from my raspberry pi 3

---------- Post added at 05:47 PM ---------- Previous post was at 05:33 PM ----------

Just reenabled everything and flashed the boot.IMG with heimdall

Sent from my SM-G935T using XDA-Developers mobile app

---------- Post added at 05:53 PM ---------- Previous post was at 05:47 PM ----------

Things I've noticed so far.

System is custom so no Samsung Pay.
Knox is not tripped though.
Boot up screen has an unlocked lock on it with the words custom.

Sent from my SM-G935T using XDA-Developers mobile app

 

[denpth]

Mhh. Just reenabled everything. Gonna try flashing. Hope it works as I don't have a backup

Sent from my SM-G935T using XDA-Developers mobile app

Flashed from my raspberry pi 3

---------- Post added at 05:47 PM ---------- Previous post was at 05:33 PM ----------

Just reenabled everything and flashed the boot.IMG with heimdall

Sent from my SM-G935T using XDA-Developers mobile app

---------- Post added at 05:53 PM ---------- Previous post was at 05:47 PM ----------

Things I've noticed so far.

System is custom so no Samsung Pay.
Knox is not tripped though.
Boot up screen has an unlocked lock on it with the words custom.

Sent from my SM-G935T using XDA-Developers mobile app

I think a good step in the right direction would be to pull the aboot from the phone. Once you have that, a talented developer might be able to reverse it.

Sent from my SM-G935T using XDA-Developers mobile app

 

[guaneet]

just checking back in, i tried different methods for root/ twrp but they didnt work which i knew wouldnt work lol

i would recommend just leaving the files as is and letting the devs work on this. also i went back to stock by using odin, i noticed slowdowns with the engboot

 

[ktetreault14]

just checking back in, i tried different methods for root/ twrp but they didnt work which i knew wouldnt work lol

i would recommend just leaving the files as is and letting the devs work on this. also i went back to stock by using odin, i noticed slowdowns with the engboot

I noticed lag but it was the same kind when I had all the apps enabled. Disabled all the bloatware and gonna see how battery is with the engboot

Sent from my SM-G935T using XDA-Developers mobile app

 

[SkyAttacksX]

I think a good step in the right direction would be to pull the aboot from the phone. Once you have that, a talented developer might be able to reverse it.

Sent from my SM-G935T using XDA-Developers mobile app

Please . This .

Sent from my SAMSUNG-SM-G930A using Tapatalk

 

[ktetreault14]

I'm heading to work now.

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[CNexus]

I think a good step in the right direction would be to pull the aboot from the phone. Once you have that, a talented developer might be able to reverse it.

Sent from my SM-G935T using XDA-Developers mobile app

That's not exactly how it works, his aboot wasn't modified in the process. He simply flashed a signed kernel created for internal use that gives you slightly more control over the system.

 

[stealthee]

I noticed lag but it was the same kind when I had all the apps enabled. Disabled all the bloatware and gonna see how battery is with the engboot

Sent from my SM-G935T using XDA-Developers mobile app

where do i find the oem software for this tmobile s7 edge. I have the very first firmware and dont want to upgrade it on accident. I looked around and not found a tar yet.

 

[denpth]

That's not exactly how it works, his aboot wasn't modified in the process. He simply flashed a signed kernel created for internal use that gives you slightly more control over the system.

If we have adb root with this method, why could we not dump the aboot? Once we have that if Sig verification could be bypassed, then a bootloader could be loaded. The key is finding an exploit in the aboot, if one exists. But without a dump, there is no way of knowing. Without the Sig verification we could flash the unlocked Qualcomm bootloader from Hong Kong or whatever. Just brainstorming. I am sure someone has already tried and failed at this, but if not... why not give it a shot?

Sent from my SM-G935T using XDA-Developers mobile app