yashsingh1/xdaforums huggingface dataset:
[General Questions and Answers] xdaca:
Yes, it is ready :)

Unlock your bootloader following hetzbh excellent instructions

Download my bootimage

Reboot your slate in fastboot mode. Again don't select anything from the menu.

$ adb reboot bootloader

Flash it.

$ fastboot flash boot phobos-SuperSU-v1.93.img
target reported max download size of 641728512 bytes
sending 'boot' (6792 KB)...
OKAY [ 0.889s]
writing 'boot'...
OKAY [ 0.489s]
finished. total time: 1.378s

Press brightness up on the slate to reboot.

Root it:

$ adb shell
shell@android:/ $ rootme

The rootme command will install SuperSU-v1.93 as a system application.

Let me know if you run into any issues.
[General Questions and Answers] GNU-Linux:
I want to follow ...

and I don´t know how to do it in another way as posting ... :o
[General Questions and Answers] xdaca:
On top of every thread there is a Subscribe to/Unsubscribe from thread link, and on the bottom is a similar button.
[General Questions and Answers] GNU-Linux:
ok, thx
[General Questions and Answers] QLink:
One question before i give it a try:

Is there a way to get back to normal factory default state(unrooted + locked), after doing this procedure ?
[General Questions and Answers] IET_DEMO:
Tried [MENTION=5563292]xdaca[/MENTION] method and works like a charm!

[MENTION=4560132]QLink[/MENTION] you can always download the recovery image on HP website.

Link:

h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-127666-1&cc=us&dlc=en&lc=en&os=4153&product=6967505&sw_lang=

Go back to factory

- adb reboot recovery

- Select update from adb

- adb sideload update.zip

Lock it

-adb reboot bootloader

-fastboot oem lock

--- Note ---

You may want to uninstall SuperSU from /system/app first.

adb shell

shell@android:/ $ su

shell@android:/ # mount -ro remount,rw /system

shell@android:/ # rm /system/app/Superuser.apk

After booting the tablet SuperSu should be gone
[General Questions and Answers] xdaca:
This is indeed the best way for a complete unroot/relock. But make a backup of your data first!

This is incomplete and dangerous. Two copies of the su binary still hang around on the /system partition and, in the absence of the Superuser.apk, they could give any application root without prompting you for it. Best way to unroot without dataloss is by going in SuperSU settings and selecting 'Full unroot'. That will remove all traces of SuperSU from your /system partition (it will undo what the rootme command did). You still can get root by (and only by) ADB shell because rootsh and rootme are still present in /sbin. As they sit in the initrd the only way to remove them is by reflashing the original bootimage.
[General Questions and Answers] DaNaca:
Thank you for your work, no issues whatsoever! I had some driver related problems, but after fixing that it was pretty straightforward.

After months of being disappointed by this device, I can now finally use this device to it's full potential. Thanks again! :good:
[General Questions and Answers] arusiasotto:
I'm going to try this in a bit. Will this work with the latest update of the machines firmware?
[General Questions and Answers] xdaca:
If you mean with 'latest' version 096-19-WW from 26 Nov 2013, then yes.

That's the latest one published on their support site. Do you happen to have a more recent one?
[General Questions and Answers] arusiasotto:
quite the opposite, i have an older one.

Now if we could just get CM onto this baby. :3
[General Questions and Answers] xdaca:
In that case I recommend you to update first. :)
[General Questions and Answers] arusiasotto:
Yeah, started it as soon as you said it was fine. This is my roommates machine, but remind me to kick him and tell him he owes you a beer.

By and by, is this a strong enough root that someone might be able to get a custom recovery and rom onto it if they had such?
[General Questions and Answers] xdaca:
Unlocking the bootloader is enough to be able to flash and boot any alternative recovery or rom, but of course, they need to be created/ported first.
[General Questions and Answers] hetzbh:
Before any other (non official HP ROM) can be installed, there needs to be either CWM ot TWRP for the Slate 21.

I tried to install the one for the Shield (they're both exactly the same chip, RAM etc..), and all it gives me is a light black screen.
[General Questions and Answers] xdaca:
Personally I don't really care about alternative recoveries or roms. The HP rom is pretty good, it is relatively easy to debloat, and well, once rooted, you have full control and do what you want. Of course it depends on the audience. I am a power user but also a minimalist and cli lover. I never fell for the XFree/Xorg based GUI's on modern *nix. But I like the android approach, and the possibility to mix it with traditional cli *nix to get ultimate power. Having root on the slate 21 is sufficient to make it my ideal platform.
[General Questions and Answers] arusiasotto:
I agree with the sentiment actually. I sually run Cyanogen on my devices, so I like having all of them run a consistent rom. Makes it easier to swap around as I am moving and such.

as for the Custom recovery not working, could it be an issue with partitions?
[General Questions and Answers] hetzbh:
No, not related to partitions, since Tegra 3, nVidia had the wisdom to use partition-by-name, so it's always the SOS parition, and if it was a wrong partition, the system wouldn't load.
[General Questions and Answers] hetzbh:
Just in case someone wants it - HP has released the kernel source for the Slate 21, you can find it here (too bad there isn't any file which describes what are the changes)

https://h20392.www2.hp.com/opensource/product.jsp?cat=100&e=true&fam=Desktop+PCs&prd=E2P18AA
[General Questions and Answers] jackshiloh:
I am attempting to root the newer HP Slate 21 Pro. It runs Android 4.3 and HP has not yet posted the ROM image for this device. Following the .whiteboard. instructions, I'd like to just extract the boot image from the device. Anyone know which file I need to pull via ADB?
[General Questions and Answers] jackshiloh:
I'm assuming this image would not work on the newer HP Slate 21 Pro with Android 4.3. The unlocking bootloader process by hetzbh works, but HP has not yet posted a recovery image for this device on their support site. The .whiteboard. directions can probably be used, but I'm having difficulty extracting the boot partition from the device. Lots of "permission denied" messages using ADB. Any suggestions are appreciated.
[General Questions and Answers] jackshiloh:
Bounty Posted for Rooting HP Slate 21 Pro - $250

Bounty has been posted on XDA thread 51720795 for rooting the HP Slate 21 Pro
[General Questions and Answers] jackshiloh:
Bounty claimed

Bounty claimed. Thanks to XDA member theos0o for delivering the solution. Will post instructions and files soon.

---------- Post added at 03:43 PM ---------- Previous post was at 02:57 PM ----------

Will post rooting instructions and files on the new thread here: http://xdaforums.com/showthread.php?t=2709467 since the HP Slate 21 with Android 4.2.2 root procedure did not work on the Pro model running Android 4.3

---------- Post added at 04:27 PM ---------- Previous post was at 03:43 PM ----------

Not able to post files & links yet. PM me if you need this information
[General Questions and Answers] crysanthus:
Root done!

I can confirm that this method works. I was able to Root my device and install much needed localized DroidSansFallback.TTF to /system/fonts folder. :D
[General Questions and Answers] jackshiloh:
Is your device the HP Slate 21 with Android 4.2.2 or the Slate 21

Pro

with Android 4.3?
[General Questions and Answers] crysanthus:
HP Slate 21 with Android 4.2.2
[General Questions and Answers] janbbeck:
I would very much like have a copy of this older firmware image. HP crippled portrait mode with the latest firmware, and I would like to go back. Does anyone have a link or is otherwise willing to help with the previous image?

Thanks in advance.
[General Questions and Answers] voskefox:
How to actvate CWM or TWRP recovery menu

Hi ,

thank you for the instructions to root the hp slate 21 :good: ! At this moment we want to deploy this machine to 300+ hp slate devices and

I do not want to manually configurate all those machines. I tried to use CWM(rom manager) and twrp to create a backup on the master machine

and then startup in recovery mode (of twrp or cwm) and recover/install the backup of the master machine. But unfortunally this won't work

because the recovery menu of twrp or CWM does not appear, but only the standard android recovery menu appears :( . Searched a little further and

found a thread on the slate 7, but i do not get this to work.. Are there any other folks who have ever tried this (or got this to work?)

Kind regards! thank you
[General Questions and Answers] jackshiloh:
As for the Slate 21 pro... we have not yet compiled a version of CWM that works. I am currently testing Nandroid recovery methods
[General Questions and Answers] jackshiloh:
Nandroid online backup and recovery

Finished testing. Nandroid backup cannot access the boot or recovery partitions, so looks like we need to get to work on getting CWM recovery console working.
[General Questions and Answers] ritdaw:
Ordered one of these last night at the ridiculous new price in the UK £199.99 with discount code 4OFFHP to take it down to £191.04. We plan to use this in the kitchen.

It would be great if we could share our essential root mods for this device on here. For example I believe the build.prop could be edited to allow more apps to be downloaded from Google Play?
[General Questions and Answers] bxm:
Has anyone gotten to the bootloader on the Slate 21 Pro? I can get to it on the plain Slate 21 with the volume key, but it doesn't seem to work on the Pro. Trying to root this thing....

edit: I used adb reboot bootloader to get it... unlocked :) now for root.

edit2: I've looked at the phobos rooter image and decided that I'm not ballsy enough to flash it on a ranger device. I might be worth a try since there's a recovery partition in case it doesn't boot at all, and if it does boot and you have root, you'd be able to dump recovery and hopefully create a proper image whose drivers work properly etc. But in any case I'm throwing in the towel for now, I'll take another stab when the rumored kitkat update shows up a couple months from now.
[General Questions and Answers] voskefox:
23584984 6

Hi, just curious, did you find a method to get CWM recovery working?

kind regards
[General Questions and Answers] kaefert:
brilliant! this guide from xdaca

http://xdaforums.com/showpost.php?p=50237735&postcount=30

works perfectly, only thing that might be worth mentioning: after running rootme my display turned black for a while (like 30 seconds) which got me worried a little since it did not say it would do that.
[General Questions and Answers] vocoderism:
Hello guys great guide

Someone have basic device tree for compile cwm?

Inviato dal mio Moto G utilizzando Tapatalk
[General Questions and Answers] mgkasper6:
So is this full proof? I have never rooted a device before so please excuse my ignorance.

Is there an HP recovery image in case I jack this all up?

Thanks in advance!
[General Questions and Answers] deandavis1:
GPS and Multitasking on the HP Slate 21

Sorry if I've posted this in the wrong thread. I've just bought the Slate 21 and have two questions. Can anyone advise if its possible to do the following without rooting:

1. Use a GPS head (i.e. USB or bluetooth)

2. Run applications in separate windows (i.e. multitasking)

Thanks in advance.
[General Questions and Answers] MarcosNK:
Just can't flash the image:\

After typing "fastboot flash boot phobos....."

It says "cannot open..."

How can I solve it?
[General Questions and Answers] lonewolf5557:
I am currently here and able to get into fastboot mode. I cannot flash the SU.img. After entering fastboot I attempt to flash SU and I get "cannot open 'phobos-SuperSU-v1.93.img"

Any ideas? thanks.
[General Questions and Answers] murilocbs:
HP Slate 21 - Hide system bar

Friends,

Can i hide or disable Hp Slate 21 System bar without root access?
[General Questions and Answers] maczarn:
no, think you need root :p

i have unlocked and rooted, i got transparent system and statusbar, i used gravitybox to do it :)
[General Questions and Answers] AlexeiSL:
HP Slate 21

Give me tip of advice, please.

I need multi bootloader in order to boot from external sd card, but i cannot do it. (next step: i wanna try to load MS Surface image)
[General Questions and Answers] murilocbs:
HP Slate 21 no PRO Version rooted?

HP Slate 21 (NO PRO) Rooted?

Can u help me? Have any link?

Thanks!
[General Questions and Answers] maczarn:
just follow the guide that are here :P
[General Questions and Answers] murilocbs:
This guide = HP Slate 21 PRO, or not?
[General Questions and Answers] scorpionmaster111562:
rooting hp slate 21

I successfully rooted my hp slate 21 running on 4.2.2 with vroot
[General Questions and Answers] Doobdonk:
Hi,

If anyone happens to still have this compiled boot image could you please repost it, as the server it was on is no longer available.

Thanks
[General Questions and Answers] Doobdonk:
If anyone is looking at this in the future, in the same place as i was, this is for your info.

I tried Vroot, towel root etc to no avail.

Finally thought i'd give shuame a go, having already unlocked, using the desktop version over USB and it worked a treat!
[General Questions and Answers] ManOfSteal:
I've still yet to unlock or root mine, but intend to eventually. Slightly off topic but I see it's just downloaded a system update to install but it's not clear what it is (I'm not going to install it until I know). Anyone else know? No mention of it on the HP site, maybe a Kitkat update?

Update: this is just a security update, so nothing major.
[General Questions and Answers] red_1819:
Hello guys.......does anyone know how to root micromax canvas knight cameo a290 kitkat.....i tried

framaroot,root genius,towelroot but they didnt help......i have the scatter loading.txt of my phone. Now i am in need of cwm recovery for my phone.

Can someone help me root my phone.....any kind of help would be highly appreciated.....Thanks in Advance
[General Questions and Answers] mctire:
re-upload bootimage please !

Hi

owning the HP Slate 21 I would like to root it.

Could you please re-upload / offer your bootimage again ?

the file linked above is no longer available.

Thanks

mctire
[General Questions and Answers] evilpfeiffers:
new bootimage for phobs (hp slate 21 s100)

Hi,

i have build a new bootimage for the slate21 s100 to root it.

Use it as the old one:

unlock the bootloader following the instructions-link in this post.

download the boot image (attachment).

reboot to fastboot mode, don't select anything from the menu:

$ adb reboot bootloader

flash bootimage:

$ fastboot flash boot phobos-SuperSU-v2.02.img

press brightness up on the slate to reboot.

root it;

$ adb shell
shell@android:/ $ rootme

finaly reboot your slate and update SuperSU via play store.

The rootme command will install SuperSU-v2.02 as a system application.

Let me know if it works for you.

I'm currently working on CWM recovey for the slate, it's running, i'm testing at the moment, looks good :D

Upload soon...

Thanks to @xdaca and @hetzbh for the original instructions.
[General Questions and Answers] noo100:
Real thanks for this :) but... su don't works completly for me.

Flash and "rootme" command works, but here after this Method still no real root.

My Modifikation of your Method:

[...]

shell@android:/ $ rootme

+ shell@android:/ $rootsh

+ # su

(shell shows first time "root@android:/ #" )

+ Open SuperSU App and let them update the SU Binary (Now! The Slate rooted completly and SuperSU works fine)

finaly reboot your slate and update SuperSU via play store.

[...]

In my case SuperSU can't update the Binary, before i add the rootsh and su commands.

Sorry for bad English, i am a German :)

Slate 21 s-100 with latest Update now Rooted *happy*
[General Questions and Answers] evilpfeiffers:
Thanks for the info and great to see your slate have working root now :)
[General Questions and Answers] DocssyDoodles:
Hello evilp,

I followed these instructions (plus the one under your post), but I can't get SuperSU to work (no binary installed). everything has worked so far except root, (I'm using a Slate 21 k100 however)

Can you help?
[General Questions and Answers] TheKindleMCPEGuy:
Hi [MENTION=6015623]Red143[/MENTION],

This is not the thread for the root instructions for your phone.

Please make another thread and people will be glad to assist you :D

Spoiler content hidden.
[General Questions and Answers] evilpfeiffers:
Hi, the rootme script installs su to /system/bin/ and Superuser.apk from [MENTION=631273]Chainfire[/MENTION] to /system/app/ and sets the file permissions.

This should also work with the k-100 if it is running with the kernel for the s-100, wich is included in the boot.img.

Are the files are installed? Please look with a file brower (e.g. es file explorer).

Hope this helps, greetz evilp
[General Questions and Answers] evilpfeiffers:
[RECOVERY][UNOFFICIAL] CWM Recovery 6.0.5.1 for HP Slate 21 s100 (phobos) and k100LA

Hi there, i'm back.

This is CWM Recovery for the HP Slate 21 s100 (phobos) from CyanogenMod repo (cm-11).

!! USE AT YOUR OWN RISK. !!

There is a dedicated thread for this now !! Look here!

Kernel:

Stock Kernel 3.4.35, build from source.

Devices:

Slate 21

s100

k100LA (verified by [MENTION=6126968]germandan[/MENTION])

Requirements:

Your bootloader must be unlocked, see the instructions-link in this post.

Download:

recovery.img

Installation instructions:

unlock the bootloader

download the recovery image

boot your slate

reboot to fastboot mode, don't select anything from the menu:

adb reboot bootloader

flash recoveryimage:

fastboot flash recovery recovery.img

[where recovery.img is the name of the file image you downloaded]

reboot into recovery

Now you can flash SuperSU zip by [MENTION=631273]Chainfire[/MENTION], you can download it from this thread.

Have fun!

Tested:

backup boot, recovery, system, data, cache to /storage/SD (external SD-Card)

format system, data, cache

restore boot, recovery, system, data, cache from /storage/SD (external SD-Card)

Sources:

device: github dot com evilp/android_device_hp_phobos

kernel: github dot com evilp/android_kernel_hp_phobos

Thanks to:

CyanogenMod Team

[MENTION=1385883]pershoot[/MENTION]

[MENTION=5563292]xdaca[/MENTION]

[MENTION=3385406]hetzbh[/MENTION]

Greetz, evilp
[General Questions and Answers] vocoderism:
great work mate can you create github tre with sources to integrate something to build first custom ROM?

Inviato dal mio Nexus 4 utilizzando Tapatalk
[General Questions and Answers] evilpfeiffers:
Hi vocoderism,

yes, will upload tomorrow :)

greetz, evilp
[General Questions and Answers] vocoderism:
send me link then i import in our spirit ROM KitKat project

Inviato dal mio Nexus 4 utilizzando Tapatalk
[General Questions and Answers] evilpfeiffers:
Hi vocoderism,

source is pushed to github.

device: github dot com evilp/android_device_hp_phobos

kernel: github dot com evilp/android_kernel_hp_phobos

Have fun and happy developing :)

Would by great to follow your work to learn something about rom-development.

greetz, evilp
[General Questions and Answers] germandan:
Thank you SO much evil ! , my slate 21 k100LA is rooted now and works perfectly. :D
[General Questions and Answers] evilpfeiffers:
Great to see it running and working on your k100LA. :D

Thx, evilp
[General Questions and Answers] noo100:
Flashed... short testet... no Problems :good:
[General Questions and Answers] vocoderism:
hope sono twrp 2.8.1 touch and cm11 based unofficial KitKat

Inviato dal mio Nexus 4 utilizzando Tapatalk
[General Questions and Answers] evilpfeiffers:
Thx for test and info.

Greetz, evilp
[General Questions and Answers] evilpfeiffers:
Hi.

i have made a separate thread for the recovery now, look here.

Greetz, evilp
[General Questions and Answers] hetzbh:
Guys, 2 questions:

1. Since XDA management team don't want to create a subforum for the S21/S21 pro devices - do you think creating a new forum would be helpful? will you join?

2. Since the Slate 21 (k100) have barely some storage, anyone managed to hack/modify the "Save to SD" stuff? (so we can stick some 32GB Class 10 SD card and get a little place to breath...)

Thanks
[General Questions and Answers] sardy:
2. Once rooted i use "foldermount" to move heavy apps to SD, no problem at all.

thanks to all for the great job :good::)
[General Questions and Answers] sardy:
Upgraded to android 4.4.2 just now, loosing root but without problems.

Runtime -> ART OK :D

Edit: rooted again thanks to evil http://xdaforums.com/showpost.php?p=56427281&postcount=87

Now my slate 21 s100 is working with android 4.4.2 root :D
[General Questions and Answers] hetzbh:
Well, the problem is that if you install either the CWM or TWRP, you'll hose your machine.. Just had this issue, luckily I had a TWRP backup ;)

Could someone please covert the update to something which either CWM or TWRP could process?
[General Questions and Answers] rpalazue:
Hi Sardy

How upgrade to 4.4.2 is for Slate 21???

regards
[General Questions and Answers] sardy:
Be careful, my slate was rooted with CWM recovery.

OTA by HP, i followed istructions, then it rebooted into CWM

CWM has seen the new upgrade file and told me, "are u sure? the ugpgrade file have not signature etc. etc."

--- this is the safe part 'cause you can still reboot without upgrade --

Then I was brave/stupid enough to go further and it worked.. :D

It upgraded a new recovery too (Power ON + Vol (-) boot into it) and can be rooted the same way the old 4.2: "fastboot flash recovery recovery.img" then you can flash "phobos-SuperSU-v2.02.img" from recovery.

Maybe I was very lucky, so do it only at your own risk (I almost bricked my N7 2012 trying the same)

4.4.2 vs 4.2:

ART :D

more free ram

No floating windows but better than nothing there is HP double Window so u can work with two apps at the same time.

U can move apps to SD (partially) *

* After upgrade my SD was write protected (read-only). Only with root permission I was able to change permissions, so remove it before upgrade ;)
[General Questions and Answers] sardy:
Hetz thanks in advance for your work and for this thread. :)

I have upgraded with CWM, maybe you can try CWM bootloader instead of TWRP
[General Questions and Answers] RadioApp:
I want to update the slate 21 to 4.4.2 but in italy no update found.......

Can someone post the update file?
[General Questions and Answers] evilpfeiffers:
HP OTA Update 17r25.1-010-10-WW

Hi,

i created 2 flashable zip files from the HP OTA Update 17r25.1-010-10-WW (Android 4.4.2 KitKat):

ROM, Download here

Bootloader (keeps unlocked), Download here

You can flash the ROM with TWRP over your existing installation or as new installation, tested with my TWRP here, via adb sideload.

I have first flashed the ROM (without wiping data) then the bootloader.

TWRP asked to install SuperSU after flashing the ROM, say yes here, let it install, working for me.

After flashing the bootloader you have to reboot system to finishing the installation.

The recovery is untouched by flashing this files.

Modifications:

ro.secure=0 and ro.adb.secure=0 in the ramdisk.

ADB (USB debugging) is default enabled, notification disabled.

greetz,

evilp
[General Questions and Answers] rpalazue:
Hi EvilP

Thanks a lot!! Work for me in Slate 21 Mexico!!

Great Work!!

Regards
[General Questions and Answers] CharlesW123:
CWM fails to install but installing TWRP did the trick, cheers! :)
[General Questions and Answers] evilpfeiffers:
Great to see its working [emoji4] Have fun!

Greetz, evilp