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Root How to take zv6 update without breaking root.

Sands207

Sands207

Android Enthusiast
Hey Guys! I no longer have a volt due to the screen being shattered a few weeks back but my girlfriend has one and she is running the zv5 rooted rom and she got the notification to take the zv6 update OTA this morning. I don't know if this is the 4.4.4 update or a lollipop variant but I am just wondering if it will break root or if supersu could use OTA survival to keep it? Does anyone have any info on this update? Appreciate it always guys =)

http://support.sprint.com/support/a...ServiceAdvisory_542_GKB78264-dvc8500001prd#!/
 
LG firmware updates almost always break root . Whether you can reroot using existing methods is questionable, because they usually patch these methods when they release firmware updates.

The best way to do it would be to pull the update and edit it so it doesn't overwrite your custom recovery.

That way you could flash it in custom recovery and even though it will break root, you can easily reflash the superuser.zip to restore root.
 
I hope someone is going to make a flashable update or figure out a way to keep Root, I'd really like to get the update because it fixes the Stagefright exploit. If anyone can point me to where the update saves in the file system I can upload it.
 
@kwknott can you tell me where in the file system I can find the update, I'll extract it for you guys and make a zip so you can flash it too. I cant use my volt. Can I use adb to pull the update?
 
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Sands207 said:
Hey Guys! I no longer have a volt due to the screen being shattered a few weeks back but my girlfriend has one and she is running the zv5 rooted rom and she got the notification to take the zv6 update OTA this morning. I don't know if this is the 4.4.4 update or a lollipop variant but I am just wondering if it will break root or if supersu could use OTA survival to keep it? Does anyone have any info on this update? Appreciate it always guys =)

http://support.sprint.com/support/a...ServiceAdvisory_542_GKB78264-dvc8500001prd#!/
Click to expand...
Just by plain curiosity what was the update zv6?
 
You have to delete it then reboot, but it will stop for a while. Or at least until it downloads again.

From what I saw online the fix was mainly just to fix the stage fright vulnerability. But knowing LG they slip some other junk into it.
 
kwknott said:
You have to delete it then reboot, but it will stop for a while. Or at least until it downloads again.

From what I saw online the fix was mainly just to fix the stage fright vulnerability. But knowing LG they slip some other junk into it.
Click to expand...

Does this update need to be signed to be flashed manually?
 
The update package includes the stock recovery and boot images. Flashing it will remove TWRP.

EDIT: So I was wrong in my statement above.

Since I need my phone fully functioning (can't use any CM ROMS since they all break things I need for work, most importantly the camera, I consider the green tint as broken) I don't mind using the stock ROM. I was using the ODEXED ZV5, but restored my fully stock ZV5 backup and then flashed the ZV6 update from TWRP and rebooted.

Then I rebooted again and was able to get back into TWRP, so it didn't get removed by the update.

But root was disrupted (not completely lost). The SuperSU icon gave a message about installing the binary. So I tried flashing it from TWRP and the SuperSU icon disappeared from the apps drawer. I then installed the APK from the SD Card just fine.

Here are before and after screenshots of the software screen.
cSk4EQr.png
YbUT6e9.png
 
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I was liking the Candy ROM in my "testing". But the broken camera is a no go.

By the way, if anyone cares, I'm not a n00b to hacking just because my post count is low. I'm a very respected member of the Xbox 360 hacking community. I've done research in Microsoft attempts to block xbox 360 hacking, being the first worldwide to discover a MS update's attempt to thwart running unsigned code on a legally hardware modded xbox 360.
 
OtaconEmmerich said:
Thing is I kinda want the stagefright fix, I just would like to keep root too. Incoming upgrade.zip upload.
https://drive.google.com/file/d/0BzVyik7qZVIQbWpYeWFuZEVHYjQ/view?usp=sharing
Click to expand...

charincol said:
The update package includes the stock recovery and boot images. Flashing it will remove TWRP.

EDIT: So I was wrong in my statement above.

Since I need my phone fully functioning (can't use any CM ROMS since they all break things I need for work, most importantly the camera, I consider the green tint as broken) I don't mind using the stock ROM. I was using the ODEXED ZV5, but restored my fully stock ZV5 backup and then flashed the ZV6 update from TWRP and rebooted.

Then I rebooted again and was able to get back into TWRP, so it didn't get removed by the update.

But root was disrupted (not completely lost). The SuperSU icon gave a message about installing the binary. So I tried flashing it from TWRP and the SuperSU icon disappeared from the apps drawer. I then installed the APK from the SD Card just fine.

Here are before and after screenshots of the software screen.
cSk4EQr.png
YbUT6e9.png
Click to expand...

OtaconEmmerich, your zip shows a recovery.img which seems contradictory to what charincol said. What does recovery.img do if it doesn't overwrite TWRP?

EDIT: So I poked around and I found this juicy bit in the "updater-script" of the update.zip OtaconEmmerich posted. It seems that the update removes the included recovery.img without writing it into memory, I wonder why. I have yet to get the nag update message from Sprint for ZV6 after reflashing ZV3 from TWRP backup and updating the long way to ZV5 through OTA updates then rooting with the One-Click script. I'll give it a few days then flash the update.zip that was posted here.

ui_print("Removing unneeded files...");
delete("/cache/recovery/recovery.img");
show_progress(0.800000, 0);
Click to expand...
 
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Just download the update.zip OtaconEmmerich posted to his Google Drive and extract it.

However, comparing the ZV5 and ZV6 radios in 7-zip, all the files are the same size, so it's unlikely they're different.

EDIT:
ShapeShifter499 said:
OtaconEmmerich, your zip shows a recovery.img which seems contradictory to what charincol said. What does recovery.img do if it doesn't overwrite TWRP?
Click to expand...
When I said I wrong, I only meant that TWRP didn't get overwritten, not that there wasn't a recovery.img included. I had already downloaded and peeked inside the archive.
 
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Huh, so the update even doesn't even flash the recovery and it has the same radio. Not shocked the update is only really out there to fix stagefright. I'll flash the zip later and post results, from what charincol said it should be fairly simple to reinstall SuperSU if that's all it breaks.
 
OtaconEmmerich said:
Thing is I kinda want the stagefright fix, I just would like to keep root too. Incoming upgrade.zip upload.
https://drive.google.com/file/d/0BzVyik7qZVIQbWpYeWFuZEVHYjQ/view?usp=sharing
Click to expand...

Flashed the update from TWRP, thanks OtaconEmmerich for the zip!

charincol said:
Yep, everything on my phone is running without issue.
Click to expand...

One Issue in my case...SuperSU still worked however after the reboot TWRP was no longer working. Quick fix just re-flashed by using Flashify and now all is well. Quick Boot now loads straight to TWRP recovery if needed. Root is INTACT after the update, Root Checker verified.
 
Lurker Pro said:
Flashed the update from TWRP, thanks OtaconEmmerich for the zip!



One Issue in my case...SuperSU still worked however after the reboot TWRP was no longer working. Quick fix just re-flashed by using Flashify and now all is well. Quick Boot now loads straight to TWRP recovery if needed. Root is INTACT after the update, Root Checker verified.
Click to expand...
Here's kinda a stupid question! If we flash the zv6 update zip, can we still flash any ROM Bliss pop or cm12.1 etc
 
Lurker Pro said:
Flashed the update from TWRP, thanks OtaconEmmerich for the zip!



One Issue in my case...SuperSU still worked however after the reboot TWRP was no longer working. Quick fix just re-flashed by using Flashify and now all is well. Quick Boot now loads straight to TWRP recovery if needed. Root is INTACT after the update, Root Checker verified.
Click to expand...


Which TWRP do you have? I have tried 2.8.7.0 and 2.8.1.0 and I get

"/system/bin/debuggerd" has unexpected contents.
E:Error executing updater binary in zip '/sdcard/Download/update.zip'
Error flashing zip '/sdcard/Download/update.zip'
Updating partition details...
...done"

Nothing actually is flashed and I'm stuck at ZV5

EDIT: I WAS ABLE TO FLASH, PEBKAC ISSUE!

I hadn't known that if Link2SD cannot find init.d support it will make a 'debuggerd' script that mounts the extra partition then calls the 'real debuggerd' so all I had to do was reverse it and move the backed up debuggerd to it's correct location.
 
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I moved lgfota and downloaded fotakill. I renamed fotakill to FOTAKill.apk (it had a webaddress at first)after i moved it to system/app. The cashe had an empty fota folder. I am still being told i dont have space to download update. Would prefer to not update as my phone is rooted happily and i have no idea what stagefright even is. But can't get relief from notification.
 
spaceshipmax said:
I moved lgfota and downloaded fotakill. I renamed fotakill to FOTAKill.apk (it had a webaddress at first)after i moved it to system/app. The cashe had an empty fota folder. I am still being told i dont have space to download update. Would prefer to not update as my phone is rooted happily and i have no idea what stagefright even is. But can't get relief from notification.
Click to expand...
You can suppress the notification with gravitybox (xposed module).
 
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