yashsingh1/xdaforums huggingface dataset:
[Verizon Galaxy Note 4 Android Development] lorilucille9:
I've tried finding a clear answer via Google and reading the forums but unsuccessful so far in their suggestions to fix. I need help if you can spare time? Here's my problem...

I previously had an unlocked the LP bootloader and then the MM bootloader as well and flashed Noble rom (S7 variant port) and ran it for a week till I started getting constant error messages. I odined back to official MM firmware and have had this trouble with the messages in stock recovery since.

dm-verity verification

E:/failed to mount /efs (invalid argument)

I have network capability, can make calls and BT and WiFi connect too but screen mirroring comes back saying there is a hardware issue. My IMEI reads correct when in the about phone/status menu and my ICCID matches my SIM card (not the ICCID listed on the OEM box). At one point I was getting the DT ignite failed message too while the phone was running. I had backed up my efs folder in TWRP but it was when I was on a MM rom. I am trying to get back to MM unlocked to try and restore the PaulPizz MM backup I did containing my EFS folder. I believe I had already done this before and the restore would not work. In fact a lot of times I've done backups in TWRP and they don't work which it's a separate issue but is affecting me immensely since it's so unreliable for me and have no clue why. Does anyone have any thoughts or advice? At this point I'd be happy to get it back to stock MM without the efs and verification issues and leave it alone. The few times I was able to root temp I looked in my efs folder and it was empty too... how can that be if almost everything works?

UPDATE: Just tried restoring PaulPizz with my EFS folder and it took 51 seconds and was unsuccessful again... trying the rom I was on before that started all this mess but as before when I try to flash in TWRP within a couple seconds it takes me back to TWRP splash screen and won't flash. What is going on :crying:
[Verizon Galaxy Note 4 Android Development] happy2472:
do you have the LP firmware to flash back with odin? i always use titanium backup and backup everything just in case. any chance before you did all this you have a titanium backup OR a full twrp backup?? IF you do id odin back to LP ... after you fully wipe everything using odin. BE CAREFUL DO NIT WIPE SD CARD if you have preciuos data on there. once back on LP id start the process all over again.

rereading your post ... if your on MM baseband and modem ... go into TWRP advance wipe everything BUT sd card ... 5 TIMES. once that is done try to flash any MM rom. i have had several issues trying legit every snapdragon and reg note 4 ROM's. the one constant for me is cyanogenmod. there ARE several MM roms that will cna can work but its a combination of what kernel and data fix to flash.

trying to write this while at work i hope it helped.
[Verizon Galaxy Note 4 Android Development] lorilucille9:
It does not unfortunately... TWRP refuses to flash anything. I wipe everything but SD card multiple times and then flash to be thrown back to the TWRP splash screen when it first starts up.

UPDATE: So I was stuck and had to go back and flash official MM to get the phone to work again. I'm back to having the following errors when in recovery...

E:/failed to mount /efs (invalid argument)

dm-verity verification

and when in the phone during normal operation I get the pop up several times...

DT ignite failed

at this point I'd be willing to pay someone more experienced then me at this to fix my issues... ugh!

Also, I cannot successfully do OTAs anymore either... they fail.
[Verizon Galaxy Note 4 Android Development] miltongina:
what is the easiest way to root the N910V if any...???
[Verizon Galaxy Note 4 Android Development] Zacharee1:
Why don't you take a look in General?
[Verizon Galaxy Note 4 Android Development] hilokilo:
Is there a way to downgrade the firmware back to 5.1.1? MM is too buggy for me and I regret taking the update.
[Verizon Galaxy Note 4 Android Development] yossijoe:
Yes with Odin
[Verizon Galaxy Note 4 Android Development] hilokilo:
I've tried that. Gives me a 'FAIL'.
[Verizon Galaxy Note 4 Android Development] yossijoe:
Which file did you flash?
[Verizon Galaxy Note 4 Android Development] hilokilo:
https://www.androidfilehost.com/?fid=24411628330026105

I'm trying with this one again. I forgot which one I used before. The previous file I used was named N910VVRU2BPA1_StockRestore.tar.md5 while this one is named N910VVRU2BPA1_N910VVZW2BPA1_N910VVRU2BPA1_HOME.tar.md5
[Verizon Galaxy Note 4 Android Development] Zacharee1:
That second one should work. However, it won't downgrade the bootloader. You may want to unlock on MM and then flash the full restore.
[Verizon Galaxy Note 4 Android Development] hilokilo:
Okay I did that and I'm now on 5.1.1 BPA1. If wifi works, does that mean bootloader is downgraded succesfully?

Additional issue I'm facing now is that TWRP won't even mount my SD card. I've tried formatting them on my phone and PC, as well as using two different cards. I've tried downgrading & upgrading TWRP's but no luck. Anyone have a suggestion?
[Verizon Galaxy Note 4 Android Development] JOSHSKORN:
I'm having problems with this step:

I assume we use Kingroot, right? Do we use the exact same version as when I rooted and unlocked from Safe Upgrade 5.1.1?
[Verizon Galaxy Note 4 Android Development] mlcampbe:
I have been reading this post front to back over several weeks trying to figure out how to proceed with an unlock/root for my phone but I am just not finding the right combination of steps that I am willing to try yet.

I had unlocked the bootloader and rooted my lollipop installation at one point. That was working well. Once MM came out I wanted to upgrade immediately figuring a rooting process would come out shortly. Therefore I wiped the phone and did a factory reset and reinstalled stock 5.1.1 software. I re-installed my apps and got the 5.1.1 version working and followed that up with the MM update. I am currently running stock MM 6.0.1 but looking to root this version now.

I read over the steps in post #1 but not sure how to start. I do not want to go back to 5.1.1 in order to root the phone but perhaps that is a requirement? From post #1 it says "Unlock your Lollipop bootloader to match CID (start here) You can ignore this step if you did it already. " I did do that originally when I was on lollipop so I am not sure if I need to do that or not since I did do that once but I have re-installed the stock 5.1.1 and stock 6.0.1 software at this point.

So, can anyone give me some tips on what I need to do at this point?
[Verizon Galaxy Note 4 Android Development] android-incredible:
if you flashed this one with odin. Extract and flash N910VVRU2BPA1_N910VVRU2CPD1_FullFirmware.tar.md5 via Odin

you have to temp root and unlock the boot loader again and then follow this step.

Boot into Download Mode

Extract and flash twrp-3.0.2-0-trltevzw.tar.md5 via Odin

Boot into TWRP recovery

Flash MM Safe Upgrade, JasmineROM v6.0, CM13 or any MM ROM

Reboot to system
[Verizon Galaxy Note 4 Android Development] mlcampbe:
I am 99% sure I did not use N910VVRU2BPA1_N910VVRU2CPD1_FullFirmware.tar.md5 but I think that I used N910VVRU2BPA1_N910VVZW2BPA1_VZW.zip to get 5.1.1 reinstalled. Does that mean I need to go back to 5.1.1 and start from scratch?
[Verizon Galaxy Note 4 Android Development] android-incredible:
BPA1 is 5.1.1 just boot in download mod and check if say developer is not you have to do it from scratch.
[Verizon Galaxy Note 4 Android Development] mlcampbe:
From download mode I see the following:

(Odin mode) High Speed

Product Name: SM-N910V

Current Binary: Samsung Official

System Status: Official

Activation Lock: Off

Qualcomm Secureboot: Enable (CSB)

Nothing about developer mode at this time so I think I will have to start over. Do you agree? If so what is the correct starting point? Do I need to get N910VVRU2BPA1_N910VVZW2BPA1_VZW.zip re-installed and follow the lollipop bootloader unlock and the lollipop root? Can I just get the lollipop bootloader unlock completed then go directly with N910VVRU2BPA1_N910VVRU2CPD1_FullFirmware.tar.md5?
[Verizon Galaxy Note 4 Android Development] yossijoe:
You will need to start again on lollipop & follow instructions in OP to get to marshmallow with unlocked bootloader
[Verizon Galaxy Note 4 Android Development] android-incredible:
you have to temp root and unlock the bootloader install twrp using odin,install Emotion-TW-5.1.1-nightly-r21-RC1-SM-N910P.zip or Multisystem-Kernel_LP-5.1.1.zip using recovery and then UPDATE-SuperSU-v2.65-20151226141550.zip . if you don't flash the kernel before the Supersu you will be stock in a bootloop. importan when you unlock the bootloader remember remove the battery and micro sd card and place the battery back without the sd card.
[Verizon Galaxy Note 4 Android Development] mlcampbe:
So basically go back to stock 5.1.1 using N910VVRU2BPA1_N910VVZW2BPA1_VZW.zip and start from scratch to get 5.1.1 bootloader unlocked and rooted with a custom kernel. From there I can then start with the info from post #1 to upgrade to rooted MM. Correct?
[Verizon Galaxy Note 4 Android Development] android-incredible:
if you follow this you will have to temp[ root and unlock the bootloader again to be in rooted marshmallow.

if you flashed this one with odin. Extract and flash N910VVRU2BPA1_N910VVRU2CPD1_FullFirmware.tar.md5 via Odin

you have to temp root and unlock the boot loader again and then follow this step.

Boot into Download Mode

Extract and flash twrp-3.0.2-0-trltevzw.tar.md5 via Odin

Boot into TWRP recovery

Flash MM Safe Upgrade, JasmineROM v6.0, CM13 or any MM ROM

Reboot to system
[Verizon Galaxy Note 4 Android Development] mlcampbe:
I followed the directions at http://xdaforums.com/showpost.php?p=67589516&postcount=62 and it seems to have worked for me. I have TWRP installed along with SuperSU and verified that adb has root access. Thanks to all.
[Verizon Galaxy Note 4 Android Development] pcdoc1960:
New Verizon note 4

I have a new Note 4 from Verizon with MM can I still root it?
[Verizon Galaxy Note 4 Android Development] mlcampbe:
My experience as detailed in the previous few updates would indicate you should be able to. However, you will have to downgrade to lollipop first and start from scratch.
[Verizon Galaxy Note 4 Android Development] Zacharee1:
You'll need to flash the N910VVRU2BPA1_N910VVRU2BPA1_VZW file to get to 5.1.1 and then root with the KingoRoot desktop app (notice the O).
[Verizon Galaxy Note 4 Android Development] JOSHSKORN:
<Deleted> Fixed the problem myself, just changed the network to Global. I wasn't able to make or receive calls. I thought I should have been on LTE/CDMA
[Verizon Galaxy Note 4 Android Development] Wired4Fun:
I'm having an odd situation here. I've been able to unlock the bootloader, but each time I flash the N910VVRU2BPA1_N910VVRU2CPD1_FullFirmware.tar.md5, I lose WiFi, which I do realize you mentioned will happen. The issue I'm running into is that even though I have mobile data activated, every time I try to root again, I keep getting a message stating that I can't root without a network connection and then it opens my wifi settings.

Is there any way I can flash just the MM bootloader firmware, and then update the ROM??? I'm wondering if I can flash the PF3 bootloader from the following link, or will that permanently lock me out of unlocking my bootloader again??

http://xdaforums.com/note-4-verizon/development/firmware-firmware-kernel-modem-recovery-t2942937
[Verizon Galaxy Note 4 Android Development] yossijoe:
Root with kingoroot desktop
[Verizon Galaxy Note 4 Android Development] Wired4Fun:
DELETE
[Verizon Galaxy Note 4 Android Development] SlothlyDX:
I hope this helps!

http://xdaforums.com/galaxy-s3/general/how-to-fix-efailed-to-mount-efs-invalid-t2858056

I know it's for the Galaxy s3 so you may have to change a few things. Maybe someone who knows the code more can help here like [MENTION=766721]ryanbg[/MENTION]?

Edit: From what I'm reading you may have to flash back to stock. Locked bootloader and all. The you can root and unlock again. I guess your OS is corrupt and it needs to be refreshed. I don't think flashing the modified stock firmwares will help. It's need to be the original firmware. Hope that helps.
[Verizon Galaxy Note 4 Android Development] cleopete:
So I'm finally going to do this thing, but I'm wondering...I've seen in other threads people have reported various pros and cons using CPF3. HSBadr has it posted, and it's much smaller. Does installing it require unlocking and rooting all over again, or can it be flashed over the top of the hybrid without losing root?
[Verizon Galaxy Note 4 Android Development] xflbret:
So, I read through the instructions, and I just want to see if I understand this correctly...

All the hours I went through getting 5.0.1 unlocked and rooted were all for naught, because this process wants me to flash the stock MM and basically start the process over again?

Please tell me I'm missing something here. I really don't want to go through that nightmare of kingroot/kingoroot again.
[Verizon Galaxy Note 4 Android Development] cleopete:
Not for naught, but you still have to go through the process again. If you hadn't unlocked Lollipop already you'd have to do it twice now, so congrats...you're half way there! I feel for you, still not sure how I got it to work last time. Said it failed but it rebooted into dev mode anyway. Hope I get that lucky this time!
[Verizon Galaxy Note 4 Android Development] xflbret:
Should the OS I'm flashing be 5.1.1?
[Verizon Galaxy Note 4 Android Development] civichater:
Worked perfectly, Thanks! !
[Verizon Galaxy Note 4 Android Development] cavemanb:
Worked as stated, put different ROM on *EchoeMM*, however, everything seems to work (except no data)... Just finishing up on the modem etc. Tried data fix -- boot looped..

SO going to Jasmine Rom... see what happens

OK UPDATE: the Jasmine Rom Works

I was trying to install a newer EchoeMM rom with different modem and BL.... so this was my experience...

thanks
[Verizon Galaxy Note 4 Android Development] SlothlyDX:
So I'm trying to gather info before I take the leap. I have the retail version phone, it is on LP rooted and unlocked. It seems like I am able to just flash the correct files and I will stay unlocked but the OP sounds as if it's otherwise? So I guess I'm wondering if I need to do the whole process after flashing the modem and bootloader again? I'm assuming my bootloader will be locked once I flash the files? If so are you guys finding it's easier to do the process than before? [MENTION=766721]ryanbg[/MENTION]
[Verizon Galaxy Note 4 Android Development] krishaun27:
So basically if you have DE Note 4 then you must root and unlock twice?
[Verizon Galaxy Note 4 Android Development] lymada:
how to root it? im on MM
[Verizon Galaxy Note 4 Android Development] ct_tec313:
thats what im gathering......... i dont understand either?
[Verizon Galaxy Note 4 Android Development] w00ly:
Yes, you root and unlock in lollipop. Then you're able to flash marshmallow firmware that can be rooted. So you have to root again once you have the new marshmallow firmware then unlock the new MM firmware. After that you do just like you did with the lollipop unlock: flash the custom recovery and your marshmallow rom.

What I'm curious about is which root method is preferred once on mm firmware since this firmware is rootable? I used kingoroot on the initial lollipop unlock previously. Is this still the way to go or is there a better way that doesn't require installing king/kingoroot
[Verizon Galaxy Note 4 Android Development] stajam:
+1

I am curious about this myself.

If anyone helps, plz give thanks?

N910V ? BL / KYUBI ROM
[Verizon Galaxy Note 4 Android Development] FAUguy:
I'm trying to get all the steps down too. I've never had any issue flashing a ROM on my Dev Ed, but to get to MM looks to be a lot more involved. I don't mind all the steps, just don't want to make an mistake or have any issues.
[Verizon Galaxy Note 4 Android Development] egore93:
So for Dev you will need to flash the PA1 firmware which will lock your boot loader, then you'll have to unlock it following this step http://xdaforums.com/showthread.php?p=66764352. This is in the general section by doctor-cool. Once this is done then go back and use Odin to push the MM firmware than push the N4_fix via adb this will already be saved in the correct location if done correctly from the PA1 firmware. Then push twrp via Odin and add su and u should be golden. This is my thought and understandings. Always ask for a second opinion. I don't have a Dev Ed phone I'm on retail phone unlocked PA1.

---------- Post added at 10:00 PM ---------- Previous post was at 09:57 PM ----------

Make sure to thank doctor-cool for his work.
[Verizon Galaxy Note 4 Android Development] raneym305:
In spite of what my coworkers, my wife, my kids, and anyone else who will have the misfortune of interacting with me today will say; pulling an all-nighter to do this was a great life choice. Thanks [MENTION=5868929]hsbadr[/MENTION] !!!
[Verizon Galaxy Note 4 Android Development] MARKREIF:
having a brain fart here after reviewing the procedure this step has me scratching my head:

Unlock the bootloader using the same method: Can someone explain this step to me?
[Verizon Galaxy Note 4 Android Development] Elmatosz:
I have a note 4 BPA1 and its already unlocked 5.1.1 bootloader what do i do next?
[Verizon Galaxy Note 4 Android Development] tolymatev:
I haven't done mine yet because im at work but im guessing you use the same method we unlocked our BPA1 bootloader.
[Verizon Galaxy Note 4 Android Development] civichater:
This is the steps I took to complete this. I am not a dev and I don't take any credit. All the credit is to [MENTION=5868929]hsbadr[/MENTION]

Once your unlocked and rooted on 5.1.1

Flash the new bootloader that was posted in the download section of the OP.(I kept the reboot box checked in Odin)

When you phone powers back on, download kingroot and rootchecker (Just like you did when you unlocked your bootloader on 5.1.1)

Enable developer mode and USB debugging in settings

In Windows, Copy samsung_unlock_n4-fix to the "Minimal ADB and Fastboot" install folder location. (Make sure you delete the old samsung_unlock_n4_fix from the last time you did this process)

Plug in with USB cable and make sure Usb settings are MTP and check ok on USB Debugging

Root with kingroot and check root with Rootchecker

open Command window in your ADB folder and type

(1) adb devices

(2) adb push samsung_unlock_n4-fix /data/local/tmp/ (make sure the samsung_unlock_n4-fix is typed in exactly as it is in the adb folder)

(3) adb shell

(4) su ( You have to grant root permission on the phone and continue)

(5) cd /data/local/tmp/

(6) chmod 777 samsung_unlock_n4-fix

(7) ./samsung_unlock_n4-fix

Boot into Download Mode

Extract and flash twrp-3.0.2-0-trltevzw.tar.md5 via Odin

Boot into TWRP recovery

Flash JasmineROM v6.0 or any Marshmallow-based ROM

Reboot to system

ENJOY!
[Verizon Galaxy Note 4 Android Development] tolymatev:
No need to flash the MM modem anymore after flashing JasmineRom 6.0?
[Verizon Galaxy Note 4 Android Development] mittadam:
Wifi

Is anyone's Wifi working?

I searched the thread and couldn't find anything. My wifi won't even turn on?

Did clean flash and flashed MM modem.

Thanks in advance!
[Verizon Galaxy Note 4 Android Development] Zacharee1:
Can't wait for your new CM build so I can try this!
[Verizon Galaxy Note 4 Android Development] SlothlyDX:
Did you flash the bootloader? You have to do the full MM upgrade or else wifi won't work
[Verizon Galaxy Note 4 Android Development] civichater:
I didn't. I believe it's built into the bootloader files.
[Verizon Galaxy Note 4 Android Development] xflbret:
What root instructions should I use?

I previously used these....

http://xdaforums.com/note-4-verizon/general/guide-noobs-guide-to-perm-root-twrp-t3360883

...the first time around, and even though it was a horrible, arduous experience I got through it. But, after I flash the OS in the OP of this thread and try to root, the phone bootloops a the Verizon logo screen. I reflashed and tried a second time and got the same result. What am I doing wrong?
[Verizon Galaxy Note 4 Android Development] egore93:
Did you take out the SD card before you tried to reboot the phone? Try that if you haven't tried it yet.
[Verizon Galaxy Note 4 Android Development] xflbret:
Yup. And the second time around I tried the process with no SD card at all.
[Verizon Galaxy Note 4 Android Development] egore93:
Is your version 5.1.1? If so you might want to re-download the Rom and flash again, it might be a bad download. You do have TWRP install as your recovery right?
[Verizon Galaxy Note 4 Android Development] powder012:
I'm rooted, unlocked, on RU2BPA1 Android 5.1.1. When I flash the FullFirmware by phone simply boot loops and never allows the OS to load so that I can loop, forcing me to restore a TWRP backup. The instructions say the FullFirmware is rootable, can I simply flash SuperSU in download mode or do I need to use Kingroot? Thanks for helping me better understand the steps.
[Verizon Galaxy Note 4 Android Development] tolymatev:
You have to wipe in recovery before or after flashing the firmware in download mode to be able to boot up.
[Verizon Galaxy Note 4 Android Development] powder012:
I'll try that. Thank you!
[Verizon Galaxy Note 4 Android Development] xflbret:
I have finally completed the process. My download mode shows developer, and am now at baseband version N910VVRU2CPF3. Is that where I am supposed to be, or did I miss a step?
[Verizon Galaxy Note 4 Android Development] Zacharee1:
That should be right. CPF3 is the latest MM version.
[Verizon Galaxy Note 4 Android Development] xflbret:
Alright, so I tried CM13 and Jasmine ROMs, and my wifi isn't working in either of them. I am on PF3. I don't know what I did wrong. And, I can't even search the thread because there seems to be a problem with this board right now. Anyone have any ideas? :(
[Verizon Galaxy Note 4 Android Development] Zacharee1:
Are you actually on the new bootloader or did you just flash the modem?
[Verizon Galaxy Note 4 Android Development] xflbret:
Well, I actually started the process over. I did one slight thing different this time, and I'd like to recommend it be inserted in to the instructions here:

After I flash the ROM at the beginning, rather than just let it reboot I booted to the recovery menu and I did five factory resets (one would have probably done it, but five felt like a lucky number). Everything else I did exactly the same as before, but I was successful this time. Therefore, I am conjecturing that the factory reset step in the process made the difference.
[Verizon Galaxy Note 4 Android Development] Zacharee1:
Factory Reset has been mentioned before. It should be added to the OP though.
[Verizon Galaxy Note 4 Android Development] :
I've been on Marshmallow for a few days now via the unlock bootloader and root method mentioned. If I do an OTA update from N910VVRU2CPD1 to N910VVRUCPF3 to get rid of these bugs, will I lose root and bootloader and all that fun stuff? Will I have issues? If so, I'm about to downgrade back to Lollipop. The battery drain and MMS issues are killing me.
[Verizon Galaxy Note 4 Android Development] Zacharee1:
There are no bugs fixed in CPF3 AFAIK. The bootloader hasn't changed and the modem isn't too different. If you're using the stock ROM, why did you unlock the bootloader? Install JasmineROM or PaulPizz if you like TW, or CyanogenMod if you like AOSP.
[Verizon Galaxy Note 4 Android Development] :
So,....Is that a no? Also, read there were bug fixes, which I am having in that updated version.

---------- Post added at 02:55 AM ---------- Previous post was at 02:46 AM ----------
[Verizon Galaxy Note 4 Android Development] Zacharee1:
Just install a custom ROM. You'll be much happier. Yes you will lose root and unlock if you upgrade.
[Verizon Galaxy Note 4 Android Development] :
Thank you!