[Android Q&A, Help & Troubleshooting] martyfender:
I am shocked that the custom twrp, that vampirefo made, that I provided in my ares 8a thread for the nextbook ares 8a, would even work for this tablet?

temp booting twrp is used to create a backup of the original boot.img.

I then unpack it and remove the encryption flag and dm-verity flags, then repack it.

In order for the data partition to be unencypted after this, the data partition must be deleted. you will loose all data on the data partition.

when the tablet is booted with the new, modified boot.img, a new, unencrypted, data partition is created. your old data partition is not magically unecrypted, so you need to backup any important files through, for example and mtp connection to a computer. that also means that only certain types of data can be backed up this way from the internal sd card and the external sd card. any apps you have will have to be reinstalled from scratch. any game and app data will probably be lost also unless you can back it up also some way.

deleting your existing data partition so a new, unencypted on can be created, is the only way I know how to do this.

The user who found a solution as to how to disable the activation of the tablet said he would post how he did it in my thread, but never did and I don't know how to do it. I bought mine from the only legitimate source I know that sells it: Walmart. I purchased my tablets from the store I work at. An activation code is printed on the receipt, and is unique to each tablet.

There are some bits and pieces of what he did to defeat activation, in my thread, but they are somewhat vague. Maybe you can PM him to get him to answer.

Most of the users I have helped and modified boot.images for different versions of the 8a, have taken my modified boot.imgs and ran, no longer to be seen.

When I asked them for supersu systemless, patched images, they never even had the courtesy to even respond to me.

I have become disillusioned by ungrateful xda members who feel entitled and don't give to the community in return.

However I am still, irregardless, trying to help if possible.

I tried to learn how how build twrp myself, but it is a very, very steep learning curve to do it. And it can only be done with a linux computer with lots of disk space to download the twrp source files. That is way beyond my abilities, currently. However, I do run Linux Mint Mate, most of the time now, as it boots and runs much faster than my windows 7 drive, despite being on a persistent, casper-rw, usb key, 32gb.

---------- Post added at 02:51 AM ---------- Previous post was at 02:20 AM ----------

A backed up data partition from the original, stock tablet, doesn't work on the rooted ares 8a either, because it is an encrypted backup. A modified boot.img removes the encyption flag and verified boot, but this does not decrypt an existing data backup in twrp. Hence the need to:

fastboot format userdata

, hit return

fastboot format cache

, hit return

Can you successfully flash supersu systemless with vampirefos twrp for the 8a on your 10a and gain sucessful root access? And of course the userdata must be deleted with the above commands, in fastboot mode, if supersu can be sucessfully flashed and works. I use jrummy's root test app, from the play store. I also always flash yds busybox in twrp, also, after supersu flash.

UPDATE: I think you need to delete userdata in fastboot, before you flash supersu in twrp, not after. I am tired so my memory is not as good, so I believe that is the safer way to do it, not after flashing supersu.

I have not written this in the 8a thread, but currently I recommend supersu in its default systemless mode: supersu 2.82 SR5, from the supersu beta thread.

I previously recommended the unoffical, systemmode supersu for the 1.0.8, 1.1.1 and 1.2.0 versions of the 8a.

UPDATE: upon looking at the specs of the ares 10a they are the same as the 8a with it having twice the internal storage space as the 8a: 32gbs vs. the 8a's 16gbs. I am not sure how this would affect the 8a twrp build if used on the 10a the android partitions are more than likely a different size.

a good android utility for determining the partition sizes is called diskinfo.

Here are the partitions for the ares 8a:

system

cache

data

metadata

boot

recovery

misc

bootloader

bootloader2

persistent

config

metadata

sd card

external SD

There are others, but those above are the main ones

PLEASE NOTE: THIS MAY NOT WORK FOR YOUR 10A. THIS MAY BRICK YOUR DEVICE. IT IS ALL THEORY BASED ON THE 8A, WHICH HAS ALMOST IDENTICAL HARDWARE EXCEPT FOR ONLY HALF OF THE 10A'S 32GB STORAGE SPACE.

SINCE VAMPIREFO'S TWRP WAS BUILT FOR THE 8A, THERE MAY BE UNEXPECTED CONSEQUENCES!

YOU HAVE BEEN WARNED! DANGER, WILL ROBINSON! (A LOST IN SPACE REFERENCE, FOR THE YOUNG.)

the bootloader must first be unlocked. See my ares 8a thread for very detailed info on how to do the below steps. One updated change from it though: YOU MUST USE THE OFFICIAL SUPERSU.ZIP, WHICH INSTALLS AS SYSTEMLESS. IT WILL ALSO PATCH YOUR BOOT.IMG TO DISABLE ENCRYPTION AND DISABLE DM_VERITY (ANDROID VERIFIED BOOT), SO NO NEED FOR A USER MODIFIED BOOT.IMG.

THE ORIGINAL UNOFFICIAL SYSTEMMODE SUPERSU I HAD PREVIOUSLY PROVIDED DOES NOT PATCH THE BOOT.IMG TO REMOVE ENCRYPTION AND DM_VERITY.

fastboot format userdata

hit enter, wait to complete.

fastboot format cache

hit enter, wait to complete.

this will delete all user data so a new, unencrypted data partition can be created.

Of course, any data will be deleted so a backup is needed through, for example, mtp to a computer. user apps will have to be reinstalled. System apps will still be there.

it look like on should then be able to temp boot the 8a twrp recovery in fastboot mode by issuing:

fastboot boot Ares8A_recovery_twrp.img

then once into twrp hit the install button and select the SR5-SuperSU-v2.82-SR5-20171001224502.zip systemless and flash it. it must already be on the internal sd card, or the external sd card. If all goes well you should see a message in twrp that supersu has successfully patched your boot.img and backed up the original to a new folder created in the root of the device, called .subackup. the files in that are the originals extracted from your stock boot.img.

The next step is to reboot. The first boot will take a very long time. The last time I did it on one of my 8a's, it took ~5 minutes to get past the animated nextbook animation before going to the android security, usb debugging prompt and setup screen.

See my ares 8a root thread, for better details