Database Users

How to root a nexus 7 4.2.2 no tool kit using Ubuntu 12.10

I want to root my nexus 7. I don't know how to all the tutorials are for windows or useing the tool kit I want to do it manually I don't have my boot loader unlocked

Whaleshark345 said:
I want to root my nexus 7. I don't know how to all the tutorials are for windows or useing the tool kit I want to do it manually I don't have my boot loader unlocked
Click to expand...
Click to collapse
All the tutorials presume unlocking of the bootloader. afaik, nobody has bothered to find a separate privilege escalation method of rooting for the N7.
fastboot is available from Google (SDK) for Linux. That means that fastboot methods are identical, irrespective of platform.
There is nothing that prevents you from re-locking the bootloader after you have rooted - with the penalty that unlocking it later will cause a full wipe of /data.
Technically though, it is the *act* of unlocking the bootloader that causes a voiding of the warranty. If they really wanted to do it, I have no doubt Asus could detect a re-locked bootloader (by examining low-level flash write counters).
cheers

Thanks but i was wondering if someone could explain it to me a little more clearly and pro give a link to a tutorial

Unlock the bootloader. There is zero reason not to, except for the factory reset it does.

Whaleshark345 said:
Thanks but i was wondering if someone could explain it to me a little more clearly and pro give a link to a tutorial
Click to expand...
Click to collapse
How long exactly did you look around? Two seconds?
http://forum.xda-developers.com/showthread.php?t=2150661

bftb0 said:
How long exactly did you look around? Two seconds?
http://forum.xda-developers.com/showthread.php?t=2150661
Click to expand...
Click to collapse
3 seconds

bftb0 said:
How long exactly did you look around? Two seconds?
http://forum.xda-developers.com/showthread.php?t=2150661
Click to expand...
Click to collapse
I can understand where the guy's coming from. I've now Googled about six different 'tutorials' on how to root the Nexus 7.
They are all total ****. Horribly written with unclear, incomplete, and contradictory instructions.
Seriously--that one you linked is only good if you already know how to do it. For someone that doesn't...it's useless.
I rooted my 7 months ago (unlocked bootloader, etc.), but lost root with the 4.2.2 update. I can't find the instruction set I used last time, and the tutorials I've found so far actually have me wishing whoever wrote them was here now so that I could beat the **** out of them.
Seriously, whoever wrote them--especially the one you linked--sucks. Bad. A lot. Terrible writing.

A shortcut is to install Windows in Virtualbox and use Wug's utility to get the job done, an extra step but this will surely save you a lot of time to do it manually.

http://www.webupd8.org/2012/08/install-adb-and-fastboot-android-tools.html
I dont understand what is so complicated about rooting a nexus device. it is literally the EASIEST device to root and flash. Not sure why people need walkthroughs or tutorials.
fastboot oem unlock
fastboot flash recovery nameofrecovery.img
reboot into recovery
install supersu.zip
what part of that is complicated that requires someone to hold your hand and help you type out the commands??

@fre1102
Well, I suppose that poorly written tutorials and a flood of newbs looking to be spoon fed is good for generating ad revenue for XDA. Not really great for what made it a compelling site in it's early history, though.
On the other hand, the OP asked a help question - and failed to do so in the help and questions forum. That certainly appears like a lack of paying attention, does it not?
I suppose you might have a complaint if you had actually been paying someone to give you advice, but to complain about the quality of something that costs you nothing seems a bit like an entitlement problem - whether you are correct in your appraisal or not.
It's an internet bulletin board - there is no barrier to entry and the quality is going to vary widely. That makes it YOUR RESPONSIBILITY to decide what to believe. It's not as if people are coming in to your home and forcing you to do any of this stuff.
Nobody here owes you anything; this site has always encouraged folks to take responsibility for their own actions. If you have a rooted device that is borked - simply put, that is YOUR FAULT. Period.

Pirateghost said:
http://www.webupd8.org/2012/08/install-adb-and-fastboot-android-tools.html
I dont understand what is so complicated about rooting a nexus device. it is literally the EASIEST device to root and flash. Not sure why people need walkthroughs or tutorials.
fastboot oem unlock
fastboot flash recovery nameofrecovery.img
reboot into recovery
install supersu.zip
what part of that is complicated that requires someone to hold your hand and help you type out the commands??
Click to expand...
Click to collapse
You can even cut that down by a step by installing the latest version of TWRP 2.4 which will autmatically detect an unrooted rom and root it for you.
I gotta admit though that getting some custom roms was a little confusing to me in the beginning after rooting and flashing a samsung phone using heimdall in Linux. It's the lack of a good guide that really didn't help. I was hoping that there would be a sticky in the Q&A or a wiki topic about it but those sections for the nexus 7 aren't that organized.
Maybe we should start using the wiki... It would be easier to keep up to date even if someone decides to abandon a thread since anyone else can go in and edit it, and if we get repeated questions we can just copy and paste a link for those who want to be spoon fed since they will always be a constant presence on this forum.
EDIT:
I had to use the cyanogenmod rom building wiki to get a good, well-written guide on unlocking the n7 and flashing a custom recovery. Good thing I had started building the rom before I got the device shipped to me since it helped to have a "good" version of cwm6 laying around.

thanks guys I rooted it was easy just needed to adjust the commands for Ubuntu witch is just adding a "sudo ./" to the beginning of every command

Whaleshark345 said:
thanks guys I rooted it was easy just needed to adjust the commands for Ubuntu witch is just adding a "sudo ./" to the beginning of every command
Click to expand...
Click to collapse
Good deal. Some folks go to the trouble of customizing some udev configuration files (I think it's udev, but can't remember right now) so that unprivileged Linux users have permissions on individual USB devices.
To me that seems like quite a bit of trouble for stuff that I do infrequently (using fastboot); I just drop to a root shell
$ sudo /bin/bash
#
and save a couple keystrokes with the fastboot commands.
BTW, when using adb from Linux, it is only necessary to start up the adb server with root privileges - the server process is the only thing needing privileges on the USB bus, so
Code:
$ sudo `which adb` devices
gets the party started but
$ adb pull /sdcard/myzipfile.zip
won't result in files owned by root.
Not surprisingly, all this stuff is less cumbersome using a Mac OS/X flavor of Unix - by default the USB devices are reachable by unprivileged users without any udev/hotplug diddling or sudo invocations.
cheers

Need Beginner's Guide, so Custom Rom can be installed

***UPDATE***
Thanks to reply, I have now successfully done everything I set out to do, and created follow-up guide!
You can find it HERE
Original Post below:
Hello Everyone!
I'd like to start off saying I used to have a Nexus 4, with TWRP and Lollipop-based CyanogenMod. I was able to install this all by myself, and keep both TWRP and the ROM updated. I also flashed custom radio to unlock the LTE capability on that phone. My tool of choice to help customize the phone was Nexus Root toolkit.
I was able to follow guides posted long ago on these forums, to do what I wanted with the Nexus 4 back in 2013/2014, but it seems I'm not so capable these days. I've hit such a roadblock with lack of root and constant stutters/slowdowns with everyday use on my current device, the Axon 7, that I must get away from the stock software. I heard it was not so easy with other devices, and while a few devs have posted wonderful guides for users, it's just not enough for a true beginner like me. From skimming guides posted, it seems like devs already expect you to have installed custom recovery, or unlocked bootloader. Then when I try to do these things, so I can move onto custom ROM, it seems the guides are out of date or just not step-by-step enough for me to use, and I don't want to take a risk and brick my device trying things that I'm not sure about. I'm a power user through and through, but not so up-to-date or knowledgeable enough to be able to follow the guides already on the forums. Consider me 1 out of 5 on tech level for Android software.
Here's the model/software already on my device: Stock everything, from bootloader and recovery, to ROM.
Model: A2017U, Nougat 7.0 on B15 ROM
What I still need clarification on:
with my device already running on nougat, do I need to install the nougat universal bootloader/radio I saw in earlier guides?
will LineageOS have any downgrades in regard to audio quality, on either the headphone output or speakers?
will my ROM of choice have Daydream VR support? if not what would be needed?
this is not a big deal, but do I need a special app or entire custom ROM if I'm interested in a temporary unroot to use apps like Android Pay?
Here's what I want on my device: TWRP, LineageOS with root.
If anyone, expert users and devs alike, could reply with current known-good info about the following, I and a lot of other users would be eternally grateful:
unlocking the bootloader, installing TWRP, and LineageOS, in a stupidly long but simple step-by-step process.
Quick follow-up info:
What I can do so far: download current LineageOS nightly, correct version of root .zip, and TWRP from official websites
NO, I'm not good with using ADB on Windows to get things done. I had to ask a friend to help me install it on windows, the guide he sent was much easier than the one i was using, and he still had to walk me through how to use it once installed to help me unlock bootloader/root on another device, Zenphone Zoom if anyone is interested.
PLEASE, don't link me to other guides for any part of this process, if the steps are thorough and relevant, please copy here, of course with all due credit given to original poster.
Feel free to let me know if more info about my knowledge level or device is needed to help you work on my request.
Thanks for reading, here's to several years more of everyone enjoying this wonderful device!

ok there is three real steps, but it can be aheadache, mainly because you didn't unlock before going to nougat.
Step 1. Downgrade to B29 Marshmallow - go here https://www.zteusa.com/axon-7/ and on the support tab in software updates is a full B29 software package. Download it, unzip it once, then put the update.zip file on your SD card.
- on the phone, in developers options, turn on OEM unlocking (it is needed to flash from sd card)
- boot phone to recovery, choose update from sd card, pick the update.zip from the sdcard, the phone will flash the B29 software. It is a bit slow, let it do what it needs to do.
Step 2. Unlock phone and install TWRP - go here https://forum.xda-developers.com/axon-7/development/edl-emergency-dl-mode-twrp-unlock-t3553514 download the miflash program, fastboot unlock program, and twrp for B29.
- instructions are all there, just do what it says.
Step 3, Install LineageOS - https://forum.xda-developers.com/axon-7/development/unofficial-lineageos-14-1-zte-axon-7-t3545679 very straight forward. Don't forget to install first the bootloader, then the rom, then gapps.
What makes this so hard is not being easily able to unlock in nougat. Most of us here unlocked way before marshmallow

No need to downgrade to b29.

lafester said:
No need to downgrade to b29.
Click to expand...
Click to collapse
I was thinking this too. Should be as simple as the steps below
1) Flash signed twrp using axonroot tool - this pry's open the door
2) Using twrp, flash fastboot (b20_fbop or something?) - opens door wider
3) Enable usb debugging and oem unlocking in developer options
4) reboot to fastboot/bootloader mode
5) fastboot oem unlock - door is now wide open
Done.

gpz1100 said:
I was thinking this too. Should be as simple as the steps below
1) Flash signed twrp using axonroot tool - this pry's open the door
2) Using twrp, flash fastboot (b20_fbop or something?) - opens door wider
3) Enable usb debugging and oem unlocking in developer options
4) reboot to fastboot/bootloader mode
5) fastboot oem unlock - door is now wide open
Done.
Click to expand...
Click to collapse
Is that a "should work" or "does work" because I'm trying to root and install LOS also on stock non rooted nougat Axon 7 and so far I've gotten nowhere and no one seems to be able to give me a list that says Yes this works

Help needed
I followed the instructions and is apparently in a boot loop. Initially it was working but now it is not. I can't even wipe the device to start from scratch. Is there another ROM available to try?

kingoftheafro said:
Is that a "should work" or "does work" because I'm trying to root and install LOS also on stock non rooted nougat Axon 7 and so far I've gotten nowhere and no one seems to be able to give me a list that says Yes this works
Click to expand...
Click to collapse
This is exactly the reason I made my post, I need concrete answers not guesses. Glad to see someone else needs the same answers

kaiso said:
I followed the instructions and is apparently in a boot loop. Initially it was working but now it is not. I can't even wipe the device to start from scratch. Is there another ROM available to try?
Click to expand...
Click to collapse
Did you downgrade to Marshmallow B29 first or skip this step?

[email protected] said:
This is exactly the reason I made my post, I need concrete answers not guesses. Glad to see someone else needs the same answers
Click to expand...
Click to collapse
I'm praying that someone will compile the information spread about into 3 guides that are model specific so people like us won't rack our heads trying to figure out what on earth to do.

[email protected] said:
Hello Everyone!
Model: A2017U, Nougat 7.0 on B15 ROM
What I still need clarification on:
1with my device already running on nougat, do I need to install the nougat universal bootloader/radio I saw in earlier guides?
2will LineageOS have any downgrades in regard to audio quality, on either the headphone output or speakers?
3will my ROM of choice have Daydream VR support? if not what would be needed?
4this is not a big deal, but do I need a special app or entire custom ROM if I'm interested in a temporary unroot to use apps like Android Pay?
Here's what I want on my device: TWRP, LineageOS with root.
If anyone, expert users and devs alike, could reply with current known-good info about the following, I and a lot of other users would be eternally grateful:
unlocking the bootloader, installing TWRP, and LineageOS, in a stupidly long but simple step-by-step process.
Quick follow-up info:
What I can do so far: download current LineageOS nightly, correct version of root .zip, and TWRP from official websites
5NO, I'm not good with using ADB on Windows to get things done. I had to ask a friend to help me install it on windows, the guide he sent was much easier than the one i was using, and he still had to walk me through
Click to expand...
Click to collapse
Ok, I've edited your post to clear some of the clutter and numbered everything so I can answer everything.
1. No, bootloader updates are only for users who haven't updated to B15 (through official means)
2. Only audio issues are with the front facing speakers. The way they sound is if you turn them up to 100% and then push it even higher to like 140%. So if you keep it at about 71% they sound normal. Check this guide here to get even better quality on overall sound (headphones, speakers)
3.B15 and LOS both work with Daydream. I currently use LOS with my Daydream headset currently.
4.Magisk with this kernel here. Currently have fully functioning Android Pay with LOS.
5. This is a big problem. If you're not comfortable with ADB you should maybe rethink messing with this phone. EDL mode (which is how I flash TWRP and subsequently the B20 bootloader to unlock) is very similar to ADB and the tools needed to flash in EDL can brick your device. Learning how to use ADB isn't bad but it's good as a fallback so you're not relying on strangers to help you out in a pinch (which most will, I just like having the ability to do things mostly myself).
---------- Post added at 10:05 AM ---------- Previous post was at 09:55 AM ----------
nolimit78 said:
I'll keep on saying this as much as I need to, I get where you're coming from. There's a lot of data about the correct way of doing things. Best thing to do is read and search. When I got my phone B29 was the new hotness and there was a bunch of older data floating around that I had to sift through. But I did it, I sifted and found my own way and combined two different methods to get my phone rooted and flashed with LOS. Honestly, the trial and error, the searching, the sifting is totally worthwhile because while this device is /DIFFERENT/ compared to methods for HTC and Samsung products, it's not harder. It's better to get yourself properly antiquated to the device you plan on flashing/hacking/rooting because there is /always/ a chance for bricking. Then another thread will be created asking for help to unbrick. Take the time, read now, read everything, understand your device, then push forward.
Click to expand...
Click to collapse
I quoted this because this thread is like the third I've seen in the last couple days. But to offer some help, this is the guide that I've followed with two phones one running B29 stock and one running B15 Stock. It remains the same because of the use of EDL. It's also good in case you want to go back to complete stock (which at the time was speculated would brick your device) but I read between the lines and discovered that it's just not a big deal. Once you get TWRP installed, make sure your Data partition is EXT4, flash LOS, flash GApps and you're good to go.
The hardest part of the process, is getting your drivers to be recognized properly for the EDL flashing tool to work. Anti-Virus softwares tend to throw false positives with tools like the EDL Flashing tool. I installed a fresh copy of Windows 7 JUST to have a flashing station ready JIC. Once I did that, smooth sailing.

nolimit78 said:
Ok, I've edited your post to clear some of the clutter and numbered everything so I can answer everything.
1. No, bootloader updates are only for users who haven't updated to B15 (through official means)
2. Only audio issues are with the front facing speakers. The way they sound is if you turn them up to 100% and then push it even higher to like 140%. So if you keep it at about 71% they sound normal. Check this guide here to get even better quality on overall sound (headphones, speakers)
3.B15 and LOS both work with Daydream. I currently use LOS with my Daydream headset currently.
4.Magisk with this kernel here. Currently have fully functioning Android Pay with LOS.
5. This is a big problem. If you're not comfortable with ADB you should maybe rethink messing with this phone. EDL mode (which is how I flash TWRP and subsequently the B20 bootloader to unlock) is very similar to ADB and the tools needed to flash in EDL can brick your device. Learning how to use ADB isn't bad but it's good as a fallback so you're not relying on strangers to help you out in a pinch (which most will, I just like having the ability to do things mostly myself).
---------- Post added at 10:05 AM ---------- Previous post was at 09:55 AM ----------
I quoted this because this thread is like the third I've seen in the last couple days. But to offer some help, this is the guide that I've followed with two phones one running B29 stock and one running B15 Stock. It remains the same because of the use of EDL. It's also good in case you want to go back to complete stock (which at the time was speculated would brick your device) but I read between the lines and discovered that it's just not a big deal. Once you get TWRP installed, make sure your Data partition is EXT4, flash LOS, flash GApps and you're good to go.
The hardest part of the process, is getting your drivers to be recognized properly for the EDL flashing tool to work. Anti-Virus softwares tend to throw false positives with tools like the EDL Flashing tool. I installed a fresh copy of Windows 7 JUST to have a flashing station ready JIC. Once I did that, smooth sailing.
Click to expand...
Click to collapse
I've already used EDL mode from that page to put a fresh copy of stock nougat to, among other things, reduce the potential issues upgrading causes. So all I should have to do is flash B15-NEW_TWRP (Nougat) from that page and then fastboot unlock?
from there reset data/cache, flash custom ROM.
flash gapps
reboot, install apps.
?????

KyJelly69 said:
I've already used EDL mode from that page to put a fresh copy of stock nougat to, among other things, reduce the potential issues upgrading causes. So all I should have to do is flash B15-NEW_TWRP (Nougat) from that page and then fastboot unlock?
from there reset data/cache, flash custom ROM.
flash gapps
reboot, install apps.
?????
Click to expand...
Click to collapse
Yup.

kingoftheafro said:
Is that a "should work" or "does work" because I'm trying to root and install LOS also on stock non rooted nougat Axon 7 and so far I've gotten nowhere and no one seems to be able to give me a list that says Yes this works
Click to expand...
Click to collapse
In case you still need all this, I made a new guide after successfully doing everything:
https://forum.xda-developers.com/axon-7/how-to/complete-guide-to-unlocking-installing-t3561128

[email protected] said:
In case you still need all this, I made a new guide after successfully doing everything:
https://forum.xda-developers.com/axon-7/how-to/complete-guide-to-unlocking-installing-t3561128
Click to expand...
Click to collapse
Thank you for the guide, but I managed to get everything done without having to downagrade from Nougat. I was having issues with my Windows variant recognizing my phone after drivers were installed so I used Linux Mint 18.1 and everything went smooth as a whistle. I think the mods should pin your thread post.

I followed the rootjunkie YouTube videos, worked perfectly and the files were all available.
Sent from my ZTE A2017U using Tapatalk

Unbricking Zenfone 3 ZE552KL (dm-verity) AND mistakes not to make when rooting

Preamble
Hello, all.
Soooo I've never posted on this forum before. I've mainly leeched the invaluable info for my personal gain. I'm sure many a googler has come here trying to figure out how to root their phone. And I'm sure many a "swimmer" in Schitz Creek has come here via Google to figure out how to save their device from what had been perceived as an upgrade. I'm speaking, of course, of trying to root/unlock a phone and finding said phone "bricked".
Well, it’s time to give back.
Because yesterday, I was neck deep in Schitz Creek. After a series of dumb decisions and a lack of knowledge, I bricked the phone I’d bought for my wife’s birthday. I was just trying to be able to delete the Asus bloatware and install titanium backup and greenify. By the way, since when did Facebook become a system app? How is this a thing? Anyways, my wife deserves better battery life. And it’s fun to feel like Cyber MacGuyver by rooting a phone. But the situation went awry. My wife kept telling me that everything was going to be alright, but I know the limitations of my knowledge.
Brief aside: I'm decently computer/phone savvy, but I would, in no way, consider myself an advanced user. Sure, to my family, I'm a computer wizard. But that doesn't mean a whole lot. To them, opening up a command prompt in Windows is seen as an act of magic. And I haven't had my planeswalker spark yet. However, I have successfully rooted, and in most cases unlocked the bootloader, for several phones (HTC desire, Galaxy S3 [three different models over three years], Asus Zenfone 5, LG G4 [once pre-motherboard-death and once post (after a downgrade)], and now the ZE552KL). So I know how to at least fumble my way around adb, fastboot, odin, and various recoveries. As long as you’re at this level, or willing to learn, then you should be able to follow these instructions. End aside.
Mistakes not to make
Let’s get down to brass tacks. I made two big mistakes that you shouldn’t make. Both mistakes stemmed from the basic mistake of using a root method other than this one: https://forum.xda-developers.com/zenfone-3/help/guide-how-to-root-zenfone-3-ze552kl-t3471524
The problem with not using this EXACT method is that some of the files/programs which you need to use have specific versions which will ensure an easypeasy root. Honestly, if you properly follow the instructions in the above post, you will most likely not run into any problems. The only addition I can make is that instead of steps 6 and 7, you might find it easier to install SuperSU.zip through TWRP instead of pushing and sideloading.
Mistake 1: Not using the proper TWRP file and SuperSU file
For some reason, there are multiple versions of these files. Your SuperSU file should be 4.8MB. Using the wrong SuperSU will break the dm-verity. Your TWRP should NOT be the latest experimental version. It should be the one from November or earlier of 2016. Using the wrong TWRP will leave you unable to use the touchscreen. Trust me. I know from experience.
Mistake 2: KEEP TWRP READ ONLY
Disabling read only has no current benefits. It will just break the dm-verity. Your device will still be able to be written to if you keep TWRP read only. I have no idea why it’s called “read only”.
How to unbrick the phone
I’m sure some of you skipped straight to here. While I can’t blame you, please at least read the above paragraph. It will help you.
First I will describe the situation the phone was in, and then I will explain how I saved it. Before I continue, I want to give a big shout out to Niemer. Without their helpful post, I would’ve had no idea what to do. Thanks!
Situation the phone was in
--TWRP could not be used because the touchscreen wasn’t working.
--The dm-verity was messed up (i.e. “not started in enforcing mode").
Before you look at the solutions, make sure that your phone shows up in the windows device manager as an ADB device/ASUS ADB device/ADB composite device/etc. no matter which step you’re in. Google it to figure out how if you don’t already know.
The solution
Part 1 - Create and flash a system image which will restore your dm-verity
step 1. download the latest system “update” from the asus drivers website. I have a WW version of the phone, so I downloaded “WW_V13.20.10.152”. It’s a 1.76GB file, so be patient. I haven’t tested this method with other versions of the phone, but they should work in theory.
step 2. go into the updater script file (META_INF → com → google → android → updater-script). Open it with notepad ++.
step 3. delete from the beginning of the file up until the line “ui_print("Target: asus/WW_Phone/ASUS_Z012D:6.0.1/MMB29P/13.20.10.152-20161222:user/release-keys");”
The code that you are deleting checks to make sure that your phone is the proper model. But there is a good chance that it will mistakenly identify your phone as a phony. So we need to get rid of this code.
step 4. save the updater-script file
step 5. create a copy of the modified system update zip file. You should now have two 1.76GB files (or maybe slightly different if your phone is a CN, JP, or other model. Once again, I have a WW version of the phone). Name one of the files “realupdate.zip” and name the other “dmsaver.zip”. The names aren’t actually important.
step 6. enter dmsaver.zip. delete these four files: file_contexts, system.new.dat, system.patch.dat, and system.transfer.list. Exit out of the file. It should now be about 60MB.
step 7. turn on your ZE552KL and enter fastboot mode
step 8. in a cmd screen from your main folder (i.e. the one with adb, fastboot, and all the other files, including the ones you just created), type in the command “fastboot flash system dmsaver.zip”
step 9. if successful, you have just restored the dm-verity. You should now no longer get that sinister red text which has been ruining all your fun.
Part 2 - Install a proper version of TWRP
(This is only important if your version of TWRP won’t let you do anything because you can’t use your touch screen)
Download the version of TWRP that is included in the how-to-root post I linked to above. Also, you can download the oldest version (NOT the newest) from a sharing website which is linked to in a post on the ASUS website. It’s not in english though. Flash it to your phone in fastboot mode using the “fastboot flash recovery” command. Make sure you turn your phone off before turning it back on, or your recovery might not activate correctly.
Part 3 - Install a new version of your system.
Go into TWRP and install the zip file “realupdate.zip” that you created in Part 1 - step 5.
Part 4 - Root your phone
Follow the instructions in the link I posted earlier. It comes from this website, so you know it’s good. This time, though, you probably don’t need to unlock the bootloader
Part 5 - Breathe a sigh of relief
Parting words
I really hope this guide can be of assistance to you. The full procedure for fixing “my” phone wasn’t really recorded anywhere (although once again, big shout out to Niemer for their post). I went through hundreds of iterations of seemingly random fastboot, recovery, and adb actions before everything worked out. Because of this, I feel quite fortunate to have saved the phone, and I really wanted to give back. This community has been super helpful to me over the last seven years, and this is my chance to reciprocate. I sincerely hope that this post will help you.
I hope I didn’t forget anything. I have a sneaking suspicion that I did. In any event, if you have any questions, please post them, and I’ll try to be of assistance. Happy rooting!

thank you man but i start Part1 step8 "fastboot flash system dmsaver.zip" it's successful then i go into TWRP and install the zip file “realupdate.zip” dm-verity show again.
Thank again.

Raw firmware
I have the same issue. My phone was branded "tim italy". When i bought it, I flashed the WW version via asus flash tool, and I'm currently able to update till the last M version, which is the ......152.
If i try to update to Android N, my phone will not boot, giving me the corruption message and shutting down after 10 seconds. I also tried to perform the dm restore procedure; the dm error disappeared but the system is stuck on the Asus boot screen
I believe that the only solution is to flash a Nougat RAW firmware via asus Flash tool. Does Anyone have a download link for the N version ?

thank you, you helped me, now im on N

I guess the version matters then. So be careful with which firmware you download/install. If anyone has success with other versions, please share how you did it

I am stuck on Step 8. i put the 2 zips in where my adb and fastboot is located, and then proceed to type 'fastboot flash system...' and then it wont let me flash, any help?

Device Locked
When I flash the dmsaver.zip, receive the error "FAILED (remote: not allowed in locked state)". Apparently this with the bootloader locked, but I already unlocked before. Someone can help me unlock the bootloader again?

Further hyperlinks & solution ideas
Check out my solution and Ideas in those in links I posted in this thread at 4th of septembre 2017:
https://forum.xda-developers.com/ze...-zenfone-3-zoom-ze553kl-t3657239#post73661437
The hyperlinks in my post might also be useful, I hope.
Would be glad about your feedback, if it helped! :good:

how do you update the script file ..can u just post the file that u made somehow or email it or attach it to a message?

cant get it to work followed the instructions still getinf error code 7 trying to install lineage os

If you have lineage OS version not is a zip file but all the images (boot.img, system.img, ...) then you could try to flash the images through ADB...

if someone have the no verity issue, can you try a method for me please?
it consists on:
re-flash the rom kernel via fastboot
and run:
Code:
fastboot oem reset-dm-verity

Followed all the steps and twrp still has no touch function.
Tried all different twrp versions.

OS Version is a key
Hi everybody that has the same issue, I hope you read that so you can fix your problem.
So what I did was downloading old version of OS that autor mentioned "WW-13.20.10.152". It is necessary to download this version even if there are more newer versions. Then follow tutorial and you should be fine.
So again, thanks OP for posting this. You helped me a lot!

How to unlock the bootloader of the SM-N910F (Samsung Galaxy Note 4)?

Hey guys!
At first, this is my first post here so please be lenient if I posted this in the wrong section or whatever. I still need to get used to this forum.
Second, English is not my native language so it could become some gibberish from time to time. I also have to mention that my Android skills are somewhere between newbie and advanced, so please keep that in mind.
But let's get ahead to my problem:
Some days ago, I decided to install Linage OS 14 on my SM-N910F because I don't like the Stock Android 6.0.1 of it.
As you know, a custom ROM requires an unlocked bootloader an that's where my struggle starts.
I simply can't find any tutorial or similar for my phone. The only one I found didn't work (It was with adb fastboot, the process got stuck at "<wating for device>" after the command "fastboot unlock oem" which was described in the tutorial).
I retried it about three or four times before I gave up. It feels like I searched the entire internet, including this forum, but I couldn't find anything useful.
Maybe it's my fault because I didn't look properly, but yeah, know I'm here to ask directly:
Do you guys have any tricks, tipps, ideas or tutorials for me to try?
If it helps you, my phone is already rooted. (chainfire's CF Autoroot)
It'd make me really, really happy and already thank you for your (hopefully) incoming answers.

Vygravlil said:
Hey guys!
At first, this is my first post here so please be lenient if I posted this in the wrong section or whatever. I still need to get used to this forum.
Second, English is not my native language so it could become some gibberish from time to time. I also have to mention that my Android skills are somewhere between newbie and advanced, so please keep that in mind.
But let's get ahead to my problem:
Some days ago, I decided to install Linage OS 14 on my SM-N910F because I don't like the Stock Android 6.0.1 of it.
As you know, a custom ROM requires an unlocked bootloader an that's where my struggle starts.
I simply can't find any tutorial or similar for my phone. The only one I found didn't work (It was with adb fastboot, the process got stuck at "<wating for device>" after the command "fastboot unlock oem" which was described in the tutorial).
I retried it about three or four times before I gave up. It feels like I searched the entire internet, including this forum, but I couldn't find anything useful.
Maybe it's my fault because I didn't look properly, but yeah, know I'm here to ask directly:
Do you guys have any tricks, tipps, ideas or tutorials for me to try?
If it helps you, my phone is already rooted. (chainfire's CF Autoroot)
It'd make me really, really happy and already thank you for your (hopefully) incoming answers.
Click to expand...
Click to collapse
Pretty certain your bootloader isn't locked, you just need to install twrp with odin and then you are good to flash lineage

sawdoctor said:
Pretty certain your bootloader isn't locked, you just need to install twrp with odin and then you are good to flash lineage
Click to expand...
Click to collapse
Thank you for your fast reply. I'll try it once again, moreover I'll let you know if it worked.

It's me again. Flashing the ROM worked, my phone now runs under Linage OS 14.1. But now I've got another problem: Gapps. Somehow I can't flash the Gapps package, TWRP always tells me that the file is corrupted. I downloaded both the Pico and the Nano package for ARM Android 7.1* devices. Both don't work. I also tried the Android 7.0.* version, but that didn't work ofcourse. (Error 20: Wrong Android version installed on the device.) Is it my fault because I downloaded the wrong packages or what's the issue?
It'd be awesome if you could help me again.
Vygravlil
EDIT:
Okay, now it works. TWRP was right, the file was corrupted. I figured out that my PC kinda messed up the download of the package. I downloaded it with another computer and now everything works fine.

Need support on 7.1.2 for Y5 2017 mya-l22

I have successfully booted the rr 7.1.2 rom from 4pda on my device every thing seems very well except in performance its much slower than the stuck firmware , also i have check the antutu score and it get lower by 10k points , i have check the gpu with another app and the working percent was stuck at 0%
So if any one could help fixing the hwc , kernel , hw coding and decoding,, it will make the device fly again

fir1996 said:
I have successfully booted the rr 7.1.2 rom from 4pda on my device every thing seems very well except in performance its much slower than the stuck firmware , also i have check the antutu score and it get lower by 10k points , i have check the gpu with another app and the working percent was stuck at 0%
So if any one could help fixing the hwc , kernel , hw coding and decoding,, it will make the device fly again
Click to expand...
Click to collapse
I have been trying to get this room to work but failed everytime, because of the encryption.
Everytime I get decryption successful but something went wrong. As far as I understand the encryption should be disabled on this ROM completely, but I can't get it done. I tried reformatting data to ext4 but that didn't work.
Edit: The problem was that I was using Magisk as root solution. I tried with the provided SuperSU and it all worked.
My device runs well with rr. I only notice the performance issue on startup, right after but the phone is very slow.
I noticed that there is no swap memory use in this ROM, while in stock there was a deal memory partition.
I'll try to figure out if we can enable it in this ROM. That might improve performance.

JudgeDread11 said:
I have been trying to get this room to work but failed everytime, because of the encryption.
Everytime I get decryption successful but something went wrong. As far as I understand the encryption should be disabled on this ROM completely, but I can't get it done. I tried reformatting data to ext4 but that didn't work.
Edit: The problem was that I was using Magisk as root solution. I tried with the provided SuperSU and it all worked.
My device runs well with rr. I only notice the performance issue on startup, right after but the phone is very slow.
I noticed that there is no swap memory use in this ROM, while in stock there was a deal memory partition.
I'll try to figure out if we can enable it in this ROM. That might improve performance.
Click to expand...
Click to collapse
Don't mean to hijack this thread but im desperate. Im trying to root mt MYA L22 but can't seem to find the right instructions. Posted here two times but no one is replying. Could you tell me how you unlocked bootloader on your phone? I already have the code from Huawei website. I am stuck at the cmd prompt when i type "list adb devices" from a cmd prompt opened through the adb and fastboot folder that ive downloaded. It says adb devices attached but shows nothing after that, basically an empty list. Any advice would be greatly appreciated!

Dylan2232 said:
Don't mean to hijack this thread but im desperate. Im trying to root mt MYA L22 but can't seem to find the right instructions. Posted here two times but no one is replying. Could you tell me how you unlocked bootloader on your phone? I already have the code from Huawei website. I am stuck at the cmd prompt when i type "list adb devices" from a cmd prompt opened through the adb and fastboot folder that ive downloaded. It says adb devices attached but shows nothing after that, basically an empty list. Any advice would be greatly appreciated!
Click to expand...
Click to collapse
It was a long time ago since I setup fastboot and ADB. I used this thread
https://forum.xda-developers.com/showthread.php?t=2277112&page=53

JudgeDread11 said:
It was a long time ago since I setup fastboot and ADB. I used this thread
https://forum.xda-developers.com/showthread.php?t=2277112&page=53
Click to expand...
Click to collapse
I went through that thread. I understand you rooted it but then started having problems? Like you couldn't download? Where you able to solve those problems? Now I am worried to root it.

Dylan2232 said:
I went through that thread. I understand you rooted it but then started having problems? Like you couldn't download? Where you able to solve those problems? Now I am worried to root it.
Click to expand...
Click to collapse
I'm not sure which post you saw, but I think my post on there were with an other device and yes, I have never bricked a device unrecoverable (yet).
That said, you will always be taking a risk when rooting or trying custom ROMS.
Then again if you never take risks you won't get anywhere. The question is how much are you willing to risk. In this case are you willing to risk your phone for the extra possibilities you might get when rooting it
First think you need to do before modifying anything is learning how to backup and restore.

JudgeDread11 said:
I'm not sure which post you saw, but I think my post on there were with an other device and yes, I have never bricked a device unrecoverable (yet).
That said, you will always be taking a risk when rooting or trying custom ROMS.
Then again if you never take risks you won't get anywhere. The question is how much are you willing to risk. In this case are you willing to risk your phone for the extra possibilities you might get when rooting it
First think you need to do before modifying any freething is learning how to backup and restore.
Click to expand...
Click to collapse
Thanks JudgeDread. Yes, I've rooted several phones in my life time. I understand the risk, but I tend to research about that particular rooting method with my phone before going ahead and doing it. I feel like the rooting method for my phone is particularly more risky, not because of what I read but rather from what info I am NOT able to find. Did you have a Huwaei Y5 2017 MYA l22 that you rooted successfully without issues? Can you point me to the instructions? That thread is a bit confusing.

Dylan2232 said:
Thanks JudgeDread. Yes, I've rooted several phones in my life time. I understand the risk, but I tend to research about that particular rooting method with my phone before going ahead and doing it. I feel like the rooting method for my phone is particularly more risky, not because of what I read but rather from what info I am NOT able to find. Did you have a Huwaei Y5 2017 MYA l22 that you rooted successfully without issues? Can you point me to the instructions? That thread is a bit confusing.
Click to expand...
Click to collapse
Yes exact same model, rooted and after several tries custom ROM.
I unlocked using the official method and then flashed TWRP in the recovery partition.
The difficulty was to get back into TWRP after rebooting. So I would advice to immediately install a root solution. I used Magisk. While root works without problem Magisk modules will only work if you use the f2fs workaround.
I am now running Resurrection remix (Android 7.1.2) without many issues. Only every now and then a forced close of the system UI.
It took some time to get it running. Because I used a different root solution the provided on the same page as the ROM. So on install use the provided SuperSU. After install you can change of you want.
Also the patches are needed. I still have bad videos on YouTube but haven't looked into the issue much yet.

hi , good news for Huawei y5 2017(MYA-L22) users.
Download latest lineage14.
visit to my blog.
cheers
https://p55novo.blogspot.com/2018/07...e-141-for.html

JudgeDread11 said:
Yes exact same model, rooted and after several tries custom ROM.
I unlocked using the official method and then flashed TWRP in the recovery partition.
The difficulty was to get back into TWRP after rebooting. So I would advice to immediately install a root solution. I used Magisk. While root works without problem Magisk modules will only work if you use the f2fs workaround.
I am now running Resurrection remix (Android 7.1.2) without many issues. Only every now and then a forced close of the system UI.
It took some time to get it running. Because I used a different root solution the provided on the same page as the ROM. So on install use the provided SuperSU. After install you can change of you want.
Also the patches are needed. I still have bad videos on YouTube but haven't looked into the issue much yet.
Click to expand...
Click to collapse
Thanks again for replying. Unfortunately though, 80 percent of what you just said flew over my head
I am not an expert but I can follow instructions! Any step by step guide on how to root it? So far I've gotten the unlock code from Huawei. I downloaded the ADB and fast boot folder and launched from that folder the cmd prompt. I type in "list of ADB deviced" and below comes an empty list. Please share what you did.

Dylan2232 said:
Thanks again for replying. Unfortunately though, 80 percent of what you just said flew over my head
I am not an expert but I can follow instructions! Any step by step guide on how to root it? So far I've gotten the unlock code from Huawei. I downloaded the ADB and fast boot folder and launched from that folder the cmd prompt. I type in "list of ADB deviced" and below comes an empty list. Please share what you did.
Click to expand...
Click to collapse
For rooting you need unlocked bootloader ( if you don't do ir then below won't work).
1)download the 4pda app from google play store and register an account .
2) download the TWRP.img file from 4pda website here is the link
https://4pda.ru/forum/index.php?showtopic=823938&view=findpost&p=74424572
3) enable developer mode in your phone by going to setting about phone , tap 6 times on the build number.
4)go to developer mode and enable usb debugging and oem factory unlock .
5) go to your pc install adb here link https://forum.xda-developers.com/showthread.php?t=2588979
6) now conect the phone to the pc and run cmd , type adb reboot bootloader . (Your device ahould restart and enter bootloader mode (white screen)).
7) now take the TWRP.img (must be copyied to desktop ) and type in cmd cd desktop.
8) type fastboot flash recovery TWRP.img (change the file name to TWRP ).
9) type fastboot reboot.
Now you have successfully install TWRP on your device.
Continue... If replied