{GUIDE} Flashing the SM-935U firmware onto your Verizon S7 Edge and Rooting

[markwebb]

That is correct: but I do have separate settings for those cores on other devices.

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[dajmanjt]

Your other devices probably weren't running cores that have separate settings for each core. We have two clusters of two cores (internally called "little" and "big"). Kernel Adiutor is adjusting /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor and /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq, but that only adjusts settings for cpu0 and cpu1 (the first cluster, the "little" cores). Cores cpu2 and cpu3 have their own settings (governor, scaling, frequency, etc.) that don't follow the cluster managed by cpu0. Additionally, the developer's engboot image changes other device settings like setting /sys/module/lpm_levels/parameters/sleep_disabled to 'Y', which causes unnecessary battery drain. Kernel Adiutor doesn't have a way to configure that or the IPv4 settings or various other device settings that got changed with engboot. That's why I developed the fix package. ;D

I also did not realize that kernel auditor was incompetent in changing the settings that needed to be changed. I will remove that part of my guide and clarify the better way of flashing your mod, including letting it handle the cpu.

Thanks for the info.

Quick question: what would I use to change some other settings besides cpu, if kernel auditor is no good?

Thanks, dajmanjt -- I'm not going to (persistently) hijack the thread here, but I do want to help out a few confused people I see so here's a big ol' reply post with answers, links, and fixes...




No, no, no! Don't use Kernel Adiutor to make any changes, for several reasons. First, it falsely believes that our first physical CPU core controls the settings for all our cores so you are setting max CPU speed for the big 2.15 GHz cores at the 1 .6 GHz speed. This will throttle your performance. Secondly, and more importantly, it's not able to change many other CPU settings that need to be fixed like enabling CPU idling sleep settings, changing the governor for the big cores, adjusting scaling load targets, etc. Uninstall Kernel Adiutor and use my flashable update instead and save yourself the grief.




My flashable update includes the patched imsservice.apk and framework-res.apk as well as verbose instructions for Xposed, so you can cut down the number of steps required by following my guide


That's the SecurityLogAgent app and it's removed in my fix+debloat flashable update.


I have an unroot guide in the S7 forum that includes stock images for the Verizon S7 Edge, too. However, I recommend you try again with my guide and see if perhaps there was a mis-step somewhere that's leading to your poor experience -- you shouldn't be seeing diminished performance at all.

I really feel like I'm probably hijacking this thread a little, but if it helps out anyone who's getting stuck or confused about performance, etc., then it's a win for everyone. Thanks to dajmanjt for his work getting people rolling and enjoy!

Hey bro hijack my thread anytime. I'm just trying to help with the experience I've had collecting the pieces I have put together. Thanks for all that you do for the community!

Sent from my SM-G935V using Tapatalk

 

[dajmanjt]

That is correct: but I do have separate settings for those cores on other devices.

Sent from my SM-G935U using Tapatalk

Yep same here mark. I'm assuming this phone specifically is a no go. I used kernel auditor exclusively BECAUSE it handled multiple clusters on my moto x pure. Developers recommended it. Not so on the s7

Sent from my SM-G935V using Tapatalk

 

[raidflex]

Is there a way to remove the custom lock notification on the boot screen? I am on the PE1 firmware rooted and flashed the PE1 Debloated/fixed image.

 

[Alucardis666]

Rooted! Thanks!

 

[Alucardis666]

Ok...so how do I remove the Volte icon within the status bar? I've done everything as specified and it's still present and very unsightly.

 

[Outbreak444]

Dunno what I could be doing wrong, I run the root.bat and nothing happens, phone doesn't reboot or anything. I've tried the phone connected and on and also in download mode. A little guidance would be great!

Thanks!

Are you running windows? If so, I can help you to an extent.

You will want to open up command prompt from your PC
-Hold down the Windows Key + R
-Type in "cmd" without the quotes and hit enter

Now you will want to navigate to the directory of where your .bat file is located
-For example, if your command prompt directory is located in C:\Users\whateveryourusernameis and you need to navigate to C:\adb then you will have to type in "cd C:\adb" without the quotes.

From there you will want to check that you are in the right directory and that the file is there
-Type in "dir" without the quotes and hit enter. It should give you a list of file names in the folder you are located in, verify that the .bat file you are looking for is there, if not then you're not in the right directory and will need to make sure to go to where it is located.

If you were in the correct directory then all you have to do now is run the batch file from the command prompt window
-Type in "root.bat" without the quotes and hit enter. If there is a problem, the error message will stay up and not close itself out like it probably has been doing.

Now you should be able to tell us what problem you are having so that we may be of better assistance to you.

Hopefully this either solves your problem or allows others to be able to solve the problem you are having, and good luck!

 

[Dameon87]

Ok...so how do I remove the Volte icon within the status bar? I've done everything as specified and it's still present and very unsightly.[/QUOTE

Use adb to remove /system/priv-app/imsservice directory. )ONLY DO THIS IF YOU FLASHED THE ZIP IN THE OP.

Basically the u firmware has this in priv-app and the v had it in app.

 

[dajmanjt]

Ok...so how do I remove the Volte icon within the status bar? I've done everything as specified and it's still present and very unsightly.

Ok...so how do I remove the Volte icon within the status bar? I've done everything as specified and it's still present and very unsightly.[/QUOTE

Use adb to remove /system/priv-app/imsservice directory. )ONLY DO THIS IF YOU FLASHED THE ZIP IN THE OP.

Basically the u firmware has this in priv-app and the v had it in app.

Thanks for the info Dameon. I've updated the guide and credited you with the info!

Sent from my SM-G935V using Tapatalk

 

[Dameon87]

I will say that after flashing the fix and debloat zip, I am getting some weird behavior with the fingerprint scanner. It's very slow and there is a huge delay between read attempts.

 

[dajmanjt]

I will say that after flashing the fix and debloat zip, I am getting some weird behavior with the fingerprint scanner. It's very slow and there is a huge delay between read attempts.

I for one do NOT feel comfortable flashing the debloat zip. I debloat myself and only remove what I am comfortable with. The only zip I recommend is the fix zip WITHOUT the debloat script, which is the one I linked in the op. I see too many people having issues with the debloat script and I feel more comfortable doing that part myself with titanium.

 

[shawnten]

Is there anyway to just get the dialer and contact from u to work on v so I can use white pages?

 

[psouza4]

I will say that after flashing the fix and debloat zip, I am getting some weird behavior with the fingerprint scanner. It's very slow and there is a huge delay between read attempts.

I for one do NOT feel comfortable flashing the debloat zip. I debloat myself and only remove what I am comfortable with. The only zip I recommend is the fix zip WITHOUT the debloat script, which is the one I linked in the op. I see too many people having issues with the debloat script and I feel more comfortable doing that part myself with titanium.

I totally agree (and it's my script): I don't like randomly flashing other people's debloat scripts because you never know what people consider 'bloat'.

For reference, here's every package that my fix+debloat script removes

AdvSoundDetector2015
Amazon_Audible
Amazon_IMDB
Amazon_MP3
Amazon_Shopping
Amazon_Shopping_vpl
AmazonInstaller_ATT
AmazonKindle_vpl_ATT
AmazonShopping_vpl_ATT
BBCAgent
Bridge
BriefingPanel
Chrome
ChromeCustomizations
CloudGateway
com.govt.nflgamecenter.us.lite
com.samsung.android.securitylogagent
com.sec.knox.store
ContainerAgent
ContainerEventsRelayManager
DigitalLocker_ATT
Directtv_Shade_ATT
Directv_ATT
DriveMode_ATT
Facebook_stub
FamilyUtility_ATT
FBInstagram_stub
FlipboardBriefing
Gmail2
Go90
Hangouts
Kindle
KLMSAgent
KnoxAppsUpdateAgent
KnoxAttestationAgent
KnoxFolderContainer
KnoxSetupWizardClient
KnoxSwitcher
LLKAgent
Lookout_ATT
Lookout_TMO
Maps
MILK_US
MobileLocate_ATT
Music2
MyATT_ATT
NaverTvCast
Plenti_vpl_ATT
preloadedkiosk
preloadedmdm
preloadedsoo
RCPComponents
RemoteSupport_ATT
Safetyinformation
SDM
SDMViewer
SecHelp
SecurityLogAgent
SimLock_TMO
Slacker
Swype
UniversalMDMClient
Videos
VMS
WhatsAppDownloader
WhitePagesNameId-release_TMO
withTV

By my count, it is (a) apps that can be re-downloaded from the Play Store like a few of the Samsung apps, Google apps, etc. that just doesn't need to live in /system, (b) Knox (since Knox doesn't work on a our rooted boot image), and (c) purely junk bloat that is just preloaded garbage. I do have a deeper debloat script in an entirely different forum thread that freezes quite a few other packages, but this is all that I recommend people delete from /system.

Hope that helps!

 

[Alucardis666]

Thanks for updating the op. I will try deleting that folder tonight and see if it fixes it. I wanna love my S7E again. I switched to the HTC 10 as my DD as the S7E got laggy and suffered poor battery life after 6 weeks of me having it. I'm sure root should remedy that with the right tweaks in place.

Thanks again for the quick replies!

 

[markwebb]

I will say that after flashing the fix and debloat zip, I am getting some weird behavior with the fingerprint scanner. It's very slow and there is a huge delay between read attempts.

Likewise and getting lots of lag. I only used the fix zip. Not as smooth as before the fix and removal of kernel adiutor. ;(


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[JAYNO20]

Likewise and getting lots of lag. I only used the fix zip. Not as smooth as before the fix and removal of kernel adiutor. ;(


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I am seeing the exact opposite. Much smoother and faster since I flashed this and removed kernel auditor. Did you turn off dvfs?

 

[markwebb]

I am seeing the exact opposite. Much smoother and faster since I flashed this and removed kernel auditor. Did you turn off dvfs?

I thought dvfs was not activated in the zip.

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[JAYNO20]

I thought dvfs was not activated in the zip.

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You can turn it off via xtouchwiz. I saw much better performance by leaving it ON. Just wondering if you had turned it off.

 

[markwebb]

I never installed exposed.

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[JAYNO20]

Then I don't know. The performance is way up using the flash file.