yashsingh1/xdaforums huggingface dataset:
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] craigzhong:
what bugging the most is that win10 PC cant load to MTP MODE in twrp recovery

.....
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] zentis:
Hi ante0,

Thanks!

I've tried this build of TWRP. Adb doesn't seem to work.

I've tried doing `adb sideload Magisk-v13.3-nocrypt.zip`

and got the following error:

opening 'Magisk-v13.3-nocrypt.zip'...

connecting...

falling back to older sideload method...

error: closed

I'm using adb version 1.0.39 on a mac.

EDIT: Android File Transfer did work with TWRP so I was able to copy the magisk zip file to cache and then install it from there
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] 4thfloorcaveman:
Not sure if this was the build you wanted tested earlier as well, but now it's tested :)

ADB, sideload and MTP works perfectly. If you are on OSX or Linux (ubuntu in virtualbox) - windows fails hard.

ADB just works.

Sideload works when you go to "Advanced"->"ADB Sideload"

MTP works on OSX, when you install Android file Transfer from Big G. https://www.android.com/filetransfer/

Funny thing is: Everything above is true for Tkkg1994 TWRP from the first post as well. Works on OSX and ubuntu, but not win10.

both adb version 1.0.36 and 1.0.39

LON-L29, not encrypted.

Fastboot works fine on win though.

I'm afraid to call it a driver issue - mostly because I wouldn't know where to begin searching.

So I'll hang on to the Air from 2011 - this thing keeps impressing me. OSX 10.11.6 btw.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
I figured as much. It's most likely a driver issue that more people are having. The same people should have issues with both Pro and regular as they're almost the same phone.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Hladikssson:
..

---------- Post added at 05:02 PM ---------- Previous post was at 04:57 PM ----------
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
After flashing magisk, go to Advanced -> Copy log (ends up in /sdcard/recovery.log)

Then post the results here.

Alternative path is /tmp/recovery.log if you're encrypted, copy using Advanced - File Manager and copy to external sd.

The "error" before was that magisk installer couldn't mount loop device, so it just rebooted.

Error 1 is something else.

It might be because you have SuperSu with RomAur, try restoring stock boot image. It's the boot.img file in the zip, extract it and flash in TWRP.

Install -> Flash Image button -> boot.img -> boot partition.

Then try installing Magisk.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] p3lim:
Thank you for this, just to add I had to do "fastboot oem unlock XXXX" where XXXX is the password from the Huawei website that I got for unlocking in the first place.

Now the bootloader reports "PHONE Relocked" and "FRP Lock", but I can't start Android/TWRP any more, it's stuck on eRecovery which is trying to download some firmware (which it just fails at).

I also tried flashing the stock recovery as pointed out earlier (fastboot flash recovery recovery.img, using the recovery image from extracting the update.app file from the FullOTA firmware of my current version, B138), but that also had the fastboot error "FAILED (remote: Command not allowed)".

Not sure if my phone is bricked or not, send help please!
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] dealth645:
Hello [MENTION=2849804]p3lim[/MENTION],

If you cannot boot like me, try the patched HiSuite method like i did here, or if you already have a modded original recovery accepting any fw, try the manual flashing method :) (is the thread with manual flashing files and no check recoveries deleted :/ ?)

So your phone is not really "bricked" but it will be and stay unusable if you don't manage to bypass the checks and succeed to install a firmware (and the proper one!)
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] p3lim:
I don't have access to ADB, and HiSuite doesn't want to do anything to my phone.

I opened a new thread for my issue: https://xdaforums.com/mate-9/help/stuck-bootloader-erecovery-t3650018
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] dealth645:
If you already have flashed the original patched recoveries, you don't need adb to flash the firmware files. You just need to put the 3 files from a full package in an SD card, in HWOTA directory.

But I don't think you have them already flashed..., so the only hope you have is the patched HiSuite method like I did. It's normal your phone is normally "unsupported" by HiSuite, you need first to patch HiSuite system files so it accepts your phone, and then be able to install and use correctly Lucx's script software, with the 3 full firmware files. It worked for me when I had no hope left.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Drod101:
im done. i dont know what else to do. its been almost 6 hours trying to get twrp installed on my mate 9 MHA-AL00 and i cant, tried many adb fastboot systems and different ways. have renamed it 4 or 5 different names. I've made sure the twrp file is in the same file where the adb.exe is at etc etc i've made sure fastboot recognizes my device. however,,,, everytime i try to load the .img file its says error cannot load whatever.img

PS: my phone is already unlocked

PLEASE HELPPPPPPPPPPPPPPPPPPPPP
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
copy twrp to the same folder where adb is.

cd to the folder where your adb, fastboot etc is using cmd prompt.

then 'dir' in there and put screenshot here
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] soft-touch:
Sim unlocked or bootloader unlocked?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Drod101:
BL unlocked
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Drod101:
so today I wanted to give it another try, sat down at my computer plugged in my phone and opened adb fastboot

I do adb reboot bootloader and phone goes into bootloader, then I proceed with fastboot device and it recognized (nothing new from where I was getting yesterday) and finally I do fastboot reboot recovery twrp.img and god know how the freaking thing gets installed and was so happy I nearly peed myself hahahah

so now onto other challenges, i'm trying to do a backup of my phone's ROM and I get an error 225 so i'm stuck at that but happy non the less, one step at a time.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] soft-touch:
To backup nandroid of your ROM, you got to decrypt data by formatting data partition from TWRP first.

Flash SU

Reboot and set-up your phone (install your apps)

Then, you can go back to TWRP to backup and restore backups
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Drod101:
I'm sorry I dont understand
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] soft-touch:
If you have to backup the ROM with twrp, you might need to format data to remove data encryption
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Drod101:
during TWRP backup process I get error 225 my phone errors on /data/misc/bluedroid/T

entire entry from the recovery.log file

Error adding file '/data/misc/bluedroid/T,unIAEkzPDTb6OZmBDRvD'

I couldn't do adb pull so I exported the file to my computer and opened it with notepad++ and went through it until I found the error

I tried to remove it but got access denied

C:\Users\drpch\Downloads\adb-fastboot-tool-2016>adb shell

HWMHA:/ $ rm /data/misc/bluedroid/T

rm: /data/misc/bluedroid/T: Permission denied

based on my google search this file is part of Bluetooth, any advice on what I should do?

I found that people suggested to try and do the backup with the "compress data" option I tried that i has able to back up oeminfo, version, recovery, vendor, splash2, product and customer.

But if I try to back up Data, Root and system all together (in one file) I get this error message

I would appreciate any help on this. I want to do a system back up of the phone before I try to re brand it as i'm trying to change ROM version from Chinese to international on my Mate 9 and just in case anything goes wrong I want to be able to go back and quickly restore.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
Well, did you decrypt?

If not you won't be able to backup /data. And if you do decrypt you will need to format /data which means you will lose everything anyway.

It's because encryption is turned on automatically.

I would suggest using Huawei's backup tool or root but stay encrypted and backup using titanium backup or similar tool.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Exelios:
I'm trying to update to B190 following method 2 from here and I get error after error after error

http://www.stechguide.com/huawei-mate-9-b190-nougat-update/

TWRP either randomly fails, reboots as soon as I try to flash anything, or cannot extract update binary and has been basically giving me every error that there is to give in TWRP.

Am'I missing something?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] 5[Strogino]:
Yep.

Do not use unknown sites to download and flash something.

There are a few manuals here on XDA. There are users who did flash and even rebrand. Don't understand why people went to scam pages.

P.s. Current TWRP does not support stock ROM. There is update.app file in biggest archive and TWRP can not unpack it properly. Two small archives it can process. Most users here know it, but man who created stechguide doesn't know.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] MonroeMatrix:
Need help flashing

Someone please help. I've rooted all of my previous devices with no problems, but for some reason i'm getting "updater process ended with ERROR: 1" when I try to do the last step:(:(:(:(:(
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Blackball:
Just press vol+ and power to boot into twrp
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] MonroeMatrix:
If i'm encrypted can I simply Flash Magisk like normal from TWRP? Or do I still need to do all of the other steps you listed?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
If you're encrypted and on a B182+ firmware and TWRP 3.1.0 you can flash it right away.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Tkkg1994:
Can someone send me most recent kernel for the MHA-L29 variant? In this case I'd update the twrp to official 3.1.1 release :fingers-crossed:
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] audioralf:
I can send you the boot.img from B198 Sep 23 20:51:43 4.1.18*g083e918 you will receive a pm.

best greetings from Ralf

running B198 Firedance Rom on L29C432
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
C432B198 is released? :eek:

Hmm. Can't find it on hwmt.ru yet, although it does usually take a day or 2 before it's shown there.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Tkkg1994:
Hey guys can someone test this new TWRP build?

I'd like to release it on the OP but first it should be tested. Only two things to test:

1. Does it boot?

2. Does UBS work?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] kacarot:
I just tried and it works 1 and 2 [emoji123]

Thanks for your time!

Enviado desde mi MHA-L29 mediante Tapatalk
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Tkkg1994:
TWRP update is here!

Changelog 3.1.1-0 TWRP

What has changed in general:

Backups will now include adopted storage keys (Dees_Troy)

Fixed an adb restore issue (bigbiff)

Fixed rebooting when no OS is present (Dees_Troy)

Fixed line wrapping in the GUI terminal (_that)

Updated TWRP source code to AOSP 7.1.2 (Dees_Troy)Updated TWRP source code to AOSP 7.1.2

Device specific:

Updated to latest kernel (thanks to [MENTION=3792009]audioralf[/MENTION] for sending it to me)

Updated device tree to latest available code

Small USB related changes

Device tree clean up (I still think encryption isn't working sadly)

Download 3.1.1-0

Thanks to [MENTION=5655108]kacarot[/MENTION] for confirming all works well!
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] mataflakitas:
Work this L09..?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] goldybewon:
[MENTION=5899304]Tkkg1994[/MENTION]

Giving you thanks this way hope you like it.:good:

Thanks for supporting Mate 9 Community.:highfive:

Confirmation number: 7Y959585T06224543

Thanks,

goldybewon
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] vijer:
And SuperSu still can update the binary. Arrg!
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
Which are you using?

You'd need to be on a B182+ firmware and twrp 3.1.0+ and flash official Supersu 2.82 SR2+.

If it's the old 2.79/2.82 SuperSU for Mate 9 it won't update because su binaries are dded to the ramdisk rather than /su directly.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] vijer:
I'm on B188 and twrp-3.1.1-0-hi3660 and I have tied to flash several different SuperSu 2.82 from XDA and http://www.supersu.com/download. They provide root but they all say the Binary needs to be updated. Click update and it says the binary was updated successfully but after rebooting it says the binary needs to be updated.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
Try this one if you haven't already http://download.chainfire.eu/1220/SuperSU/SR5-SuperSU-v2.82-SR5-20171001224502.zip
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] vijer:
With that version I get Root Undetected.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
Is TWRP giving you any errors when you flash supersu?

Could you try with a clean boot image?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] vijer:
The only error I get is:

-- Checking status

--- Already patched, attempting to find stock backup

--- Stock restore failed, attempting ramdisk restore

--- Ramdisk backup restored (OTA impossible)

How would I get a clean boot image?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
What's your current L and cust? LxxCxxxB188
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] vijer:
l29c636b188
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
Here https://mega.nz/#!EgtHQIQB!g2JttBV74WFOUojHisEYJKhf7GoFeT3EScuH4T7QxDo

Flash in twrp to Boot partition, then flash SuperSU 2.82 SR5 after. If you're currently decrypted flash official, if you're encrypted flash https://mega.nz/#!4wFUzZqA!aEBjP5GDfvM2_WvJ1p0p748Oh-MplwDQS5di9FdOaCU
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] vijer:
Great, that did it. Now I just have to reset a few settings.

I appreciate your help. Are you the developer of SuperSu?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
No, not even a dev. Just a friendly helper :)
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] vijer:
Well your kindness has helped many.

Thanks
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] vijer:
What are your thoughts on re-branding? Are there any problems with changing from C636 to C432?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] bhint15:
Sorry to bother everyone but I've always had easy phones to root, just download twrp, flash, flash a superuser and done. This phone of course with all the variants I can't seem to be confident I'm finding the right info. I have the MHA-L29C567B190 and I would like to root it. I have my unlock code already and unlocked bootloader. I'm planning on flashing twrp-3.1.1-0-hi3660.img and then plan on staying encrypted. I was planning on flashing the supersu posted a page or so ago named SR4-SuperSU-v2.82-SR4-20170918204844-encrypted.zip to stay encrypted.

Is that all it is? (Again, like any other phone I've owned) I know decrypting (wiping DATA in twrp) will require the 2 .zips for my region to put things back in order and again I don't want to do that.

OR If using the 1st post instructions...

Can I flash the superuser-r310-beta.zip and install the APK as mentioned on a MHA-L29C567B190 while being encrypted? I know TWRP doesn't support encrypted phones (meaning it can't read DATA partition) but does PHH root work on encrypted devices?

UPDATE:

I went ahead and did the original post instructions and used the r310-beta.zip and the phone at least booted so I'm not soft-bricked. I haven't tested root yet but I'm guessing it is working. Thanks!
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] kacarot:
Hello everyone.

I try to make a backup from twrp and it gives me error 255 .... Do you know if it has a solution?

FromFuture B198 & Magisk 14.2

Enviado desde mi MHA-L29 mediante Tapatalk
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] grinch247:
Same can't make a backup
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Blackball:
You have Magisk 14.2 installed?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] kacarot:
Yes! Is the problem?.... & your rom B198.

Enviado desde mi MHA-L29 mediante Tapatalk
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Blackball:
Yes. I think you need to format internal storage again to fix it.

---------- Post added at 08:39 AM ---------- Previous post was at 08:23 AM ----------

Look into this post

https://xdaforums.com/showthread.php?p=74030075
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
As of Magisk 14.2 it doesn't remove the text "fileencryptioninline" in fstab. Meaning the following: If you're just updating Magisk it won't do anything. If you flash back stock boot image or install a custom rom that contains a boot image, and you're decrypted, it will encrypt at boot.

You could manually edit the boot image in Android Image Kitchen and remove "fileencryptioninline", then rebuild it and flash in TWRP.

Or use Magisk 14.1.

Or build magisk from source and add fileencryptioninline to /jni/magiskboot/boot_utils.c.

I'm not sure why he removed it, might be compatibility issues with other phones.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] Blackball:
I have flashed a test rom with Magisk 14.2 pre-installed and I can't backup data too. When I look into my internal storage everything is fine. When I make a data backup with twrp, twrp see encrypted files and stop the backup.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] soft-touch:
Did you decrypt data when you install your ROM?

That's format data partition from TWRP.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] kacarot:
I made all Wipes less sd ext, then install the rom and boot .... Do you think I should make a wipe data before boot?

Thanks!

Enviado desde mi MHA-L29 mediante Tapatalk
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] soft-touch:
Format the data partition as shown in the image attached.

You will have to type "yes" to format
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] kacarot:
Yes now! But after format data, delete all internal memory and system, and bootlop in erecovery..... so went back to flashing the rom with Magisk v1.4 and I can do full backup.

Thank you.

Enviado desde mi MHA-L29 mediante Tapatalk
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] soft-touch:
Yes...you should be able to backup from TWRP now
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
See what happens when you reboot and go back to recovery and try to backup again, or just browse internal memory after reboot.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] kacarot:
Yes! Thanks!

Enviado desde mi MHA-L29 mediante Tapatalk
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] SolCanis:
Issues flashing twrp: Phone, Fpr & Boot Unlocked?

I am having issues with flashing twrp, there was one other user that ran into the problem I am having and wasn't answered.

I doubt it makes an difference but the Minimal adb fastboot stuff is bugged at best. Spent a lot of wasted time going in circles becasue it would continuously randomly fail to work just to unlock the boot-loader in process.

However, on to my issue I share with 1 other user:

twrp will not flash.

Error: cannot load 'twrp-3.1.0-0-hi3660.img'

That's all the command prompt says.

My HM9 Bootloader is unlocked (it loves reminding me) which factory reset the device: so I disabled the lock screen in developer options and didn't set up any fingerprints or pass codes becasue I wonder what's all this business about the phone being encrypted when it seems like just a part of it is when you set up Fingerprints.

I am not familiar with this stuff but I can find my way around; I am not sure why with this phone it's such a difficult process.

Any ideas why...twrp can't be flashed when the phone is unlocked fpr unlocked and the bootloader is also unlocked.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] 5[Strogino]:
Please provide screenshot of command prompt.

What's command are you using.

Do you have TWRP file in directory with fastboot or it is in other place?
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] SolCanis:
At the time it was the same command copy and pasted right from the instructions; I eventually realized that they had to be in the same location which should have been noted in the O.P's guide.

However, I've solved the issue simply by renaming the image to just ' twrp.img ' and used the same command from the guide here.

Thanks for the inquiry.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] tasar:
Hi,

why i get this in TWRP 3.1.1.0 so int. sd-card is not useable in TWRP, but under system the sd was shown normal.

Iam on Oreo 321b (C432) .

What i do:

format data (with YES), reboot into system but after i go back to twrp, all files/directories on int. sd are unusable

Make factory reset, format int. sd but this time no format Data(with YES), reboot in TWRP and sd is ok, but after reboot into system and go back to TWRP, the int. sd card is unusable again.

What iam doing wrong??
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
Unless you're flashing a custom boot image (ramdisk partition in Oreo) it will re-encrypt each time you boot.

You're just removing encryption while you're in TWRP...

SuperSU 2.82SR5 should be able to remove it automatically, though you will need a special version as boot partition now is ramdisk: https://androidfilehost.com/?fid=962021903579485056 (credit to [MENTION=2112104]auras76[/MENTION]).

If you want to remove it manually, fstab should be located at(Stolen from SuperSU fbe_bypass script):

/odm/etc/fstab.$HARDWARE

/vendor/etc/fstab.$HARDWARE

/fstab.$HARDWARE
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] aureliomilitao:
[Guide] Mate 9 Flash Update Package and Rebrand ( no possible with android oreo ) twrp no install with script
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ApoelEllhnwn:
Hello i have one question. Can i flash with twrp the stock erecovery.img to erecovery partition??

Thank you
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] riccardorossi64:
Ciao,

first of all sorry if I'm not too expert...

I've tried on my Mate9 L09 TWRP 3.0.1.0 and the last 3.1.1.0 but in WIPE section I don't have VENDOR and CUST (to wipe)

Some tips?

In MOUNT section have I to flag all the items? (I've done it, it's connected?)

Why my Twrp doesn't keep my own SETTINGS, but every boot they are restored?

thanks very much, my friends, I'm on a Rom and I have no choise to pass at EpheRom (and I fear also not to be able to switch to Oreo in the future)

a big ciao
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ante0:
You would need a twrp with those partitions enabled when it's built. I believe Blackball has one in his rom thread, so you could try that one.

The reason it doesn't save is probably because you're not decrypted, by default it tries to save settings but can't because of encryption.

Either you need to modify twrp to save to another partition or to decrypt.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] drift08:
After I root and installed TWRP on my Mate 9, I am unable to update several apps. It gave me the following error.

"Google" can't be updated. Try again, and if the problem continues, get help troubleshooting. (Error code: 0)

Any idea? Thanks.
[Huawei Mate 9 ROMs, Kernels, Recoveries, & Other D] ji_mestone:
I'm at a complete loss here. This is my first non-Nexus device, which were all so simple to root, since 2010. I've read through this entire thread and still have no idea what to do.

I boot into TWRP, but everything's gibberish, so I can't tell which files are which and I can't select the superuser zip I put on the phone.