yashsingh1/xdaforums huggingface dataset:
[General Questions and Answers] Systech:
Well I picked up one cheap and thought I'd give this a try. I got everything setup, and started working through it. I started with step 1, and got as far as "Must remove USB cable and let countdown time on screen continue"... At which point my device was complaining about the device having been unlocked. WHich I assume is the countdown in question. I let it go through that and I get to the "Voyager" logo splash screen which continues it's fading in and out, but it never seems to get past this point... It's been sitting there at that screen for 10-15 minutes now with no change. Did I manage to brick it right out of the gate?
[General Questions and Answers] mrmazak:
No I think it's OK

This happened before. Need to boot to recovery and do factory wipe

So long press power button, it should shut off. Press and hold power and volume up(side far from USB).

For 10 seconds and let go. Countdown should finish and load to recovery.

Select wipe and then reboot. That should do it
[General Questions and Answers] Systech:
Can't seem to get it to load recovery... I powered it down and held power and volume up like you suggested and it just goes right back to the screen with Voyager after the countdown. I even tried holding the power and volume up all the way through the countdown. Any other suggestions?
[General Questions and Answers] mrmazak:
the timing of the volume button is sometimes difficult.

hold volume and press power till turns on then let go of power and hold volume for 10 seconds. then let go. and if that does not work, do same thing but during last 10 seconds of countdown repeatedly tap the volume button.
[General Questions and Answers] vampirefo:
This tablet has been reported to have adb during power off, so power off your tablet.

adb reboot recovery
[General Questions and Answers] mrmazak:
I did some tests with that and found if you don't have adb enabled inside android and also already authorized it too, then the adb from powered off gets unauthorized. And right after unlock /data is formatted so not authorized

:(

would like to change that somehow
[General Questions and Answers] vampirefo:
adb reboot recovery shouldn't need authorization.

adb shell would.

If you tested adb reboot recovery, and it asked for authorization, then I guess it does, don't know why though.

Authorization is usually given to access device, adb reboot recovery isn't accessing tablet just​ telling the tablet to reboot and where to boot.
[General Questions and Answers] mrmazak:
let me try . will post results

Need to wipe data first (at least turn off adb toggle in dev options)
[General Questions and Answers] Systech:
I was finally able to get into recovery mode... I just kept trying different combinations. What finally seemed to work oddly enough was Holding power and the *other* volume button(closest to the usb), and releasing both just as soon as it actually powered on (so that the countdown didn't register the volume button as the option to power it off).

Once I got that done the rest of it seemed to go pretty well. The one oddity that I had is that each time the batch file Displayed the message:

[*] MUST REMOVE USB CABLE AND LET COUNTDOWN TIMER ON SCREEN COTINUE

[*] IF DEVICE POWERS OFF JUST HOLD POWER BUTTON TO TURN BACK ON

[*] skip steps in setup then re-enable developer options and abd debugging

The device wouldn't actually reboot... It was still on as evidenced by the backlight still being on, so after waiting a bit, I finally just power cycled it myself, and then followed through with the next steps. All seemed to work well once I got past that initial issue of it being stuck booting. I now have SuperSU installed :).

Not that I am worried about it or want to right now, but have you worked out a method for reversing this, or at least getting things back to where you don't have that 30 second countdown each boot, just thinking about down the road if I happened to want to sell the tablet to someone else. Some of the previous comments make it sound as if you were able to, but didn't really go into detail on what was required.
[General Questions and Answers] mrmazak:
i didnt try as , I recall with some other devices when you revese the bootloader unlock it could brick.

it would be at your own risk to try "fastboot flashing lock" to remove the countdown, but you might need to put original boot.img in first

---------- Post added at 10:29 AM ---------- Previous post was at 10:25 AM ----------

cannot get adb to connect while powered off when adb toggle is set to off. (the way it would be after a factory reset)

but keep getting a new mtp device in device manager this way, but it rejects any driver I have tried to load for it.

intel mtp

generic mtp

google mtp

mtp usb device

mtp device also showed up when tablet turned on but could not accept driver. When adb was turned back on so was this mtp device

and adb again showed up while off. So adb with tablet off depends on it working with tablet on. only partly useful.
[General Questions and Answers] Plasmastar:
Yeah, mrmazak got confused there. Volume Up is actually the one closest to the USB. It's also easier to hold Volume Up before pressing/(holding, not sure if holding is necessary, but I always do) Power. When you see the timeout message, let them both go, or it's going to shut off due to Volume Up being held.
[General Questions and Answers] mrmazak:
this is my take on the steps to go from OOB (out of box) to rooted.

please if I missed something or made typo let me know.

Manuel Root Instructions

.

.
[General Questions and Answers] Plasmastar:
Looks good, except I think this may be a typo.

3: type "fastboot format userdata"
4: type "fastboot format userdata"
[General Questions and Answers] mrmazak:
The second one is supposed to be "cache".

Ifixed it.

and made the file a direct link to github file, so IF changes are needed or made they will reflect back to original post. Now if there was just some way to make a permalink to the post . Oh wait we are in a general Q and A thread not a device forrum .

wink wink , forum moderator. Can we get a dedicated forum now. Or is the limited availability of this device make that not possible.
[General Questions and Answers] icaruspony:
I sent a request to have them add a sub forum.
[General Questions and Answers] mrmazak:
Me too. I didn't see yours in the request for new thread , thread.

https://xdaforums.com/showpost.php?p=71663859&postcount=21849
[General Questions and Answers] mrmazak:
The idea of a forum sounds cool but reality is there will not be any more development beyond gaining root, so we realy don't need any forum but a sticky on the the first post would be good . Or even links on first post directing any new. Comer to the relevant information.

So seeing how I have not seen the op post anything except the initial post we need to find him and ask for him to edit his post.
[General Questions and Answers] vampirefo:
Just start a new thread.

Post a link to new thread in this thread, as root is achieved, this thread is no longer needed, 1st post in new thread should explain how to root the tablet.

All new posts or questions should be in the new thread, this thread isn't needed any longer.

The op didn't contribute in anyway on rooting the tablet.
[General Questions and Answers] mrmazak:
good idea

https://xdaforums.com/general/general/guide-rca-voyager-rct6873w42-unlock-t3582973
[General Questions and Answers] mrmazak:
I want to make a list of build numbers this root method works on. If you have rooted successfully please post your build number so I can add it to the list of confirmed working devices in the new thread I started.

And if you have not tried yet please verify your build number first. There has been an issue with the same model number device but different build number and it ended up with a bricked device.

Thank you .

New thread

https://xdaforums.com/general/general/guide-rca-voyager-rct6873w42-unlock-t3582973
[General Questions and Answers] Kaiwaters:
was anyone able to root this tablet?
[General Questions and Answers] Plasmastar:
Yes. :eek:
[General Questions and Answers] Kaiwaters:
rofl omg i was thinking do i really have to scroll thru 30 pages of comments when the answer was right above me
[General Questions and Answers] LoverhyMe:
Rca rct6873w42

... here it is 2018 and no one hasn't found an answer to this tablet, I'm still researching, nothing's come up yet!
[General Questions and Answers] mrmazak:
really.

...here it is 2018, this device got rooted early 2017.

just the 4 posts above this one, all tell the short answer, yes root is done. It is in the new thread and there is a link too.
[General Questions and Answers] Isrgish:
[MENTION=5312578]mrmazak[/MENTION]

I was wondering if you can maybe give me some more information on how you were able to change the boot.img to permissive. I'm trying to get a TWRP recovery on a different device (Pipo N7 Android 7). I think that SELinux not being permissive is what is giving me problems.

Thank You,
[General Questions and Answers] mrmazak:
The stock boot.IMG I was working with on the rca voyager had an sepolicy that did not allow permissive. [MENTION=2472806]vampirefo[/MENTION] gave me the sepolicy from his device , and I added that permissive policy to my boot.Img

But I do not think that is the reason you are having trouble with recovery. The policy should only involve the system while booted inside android.

Hope that clears it up a little.
[General Questions and Answers] Chibisuke1219:
Hi so i have an issue where i try and follow the rooting guide here on xda developer's for the rct6873w42 with the intel cpu and everytime i try and unlock the bootloader using fastboot commands my computer doesnt recognize the device and says the drivers for it arent available can someone please help me with this issue thanks
[General Questions and Answers] mrmazak:
Your question has been lost. I do not follow this thread anymore, and I was not "tagged" . So the response has taken long time. Here is an explain two. On getting drivers to install.

https://xdaforums.com/general/help/rca-voyager-rct6873w42-rooting-help-t3485625/post71539364
[General Questions and Answers] mrmazak:
Just unlocked bootloader. And things did not go so smooth. On first boot I expected recovery to do wipe. Based on other devices, anyway. But on first boot I was greeted with a screen that says "device has been unlocked and cannot be trusted. Device will boot in 30 second's" but only powered off. Then this repeated for many power cycles. I tried to hold reset button and different button combos on boot. I was about to try and return device when on the next reboot I had the android on its back(what I expected in the beginning) then one more device not trusted screen, this time it did boot and setting up now.

I do not know what happened but perhaps a note should be added to op or guide when one is made stating the possible error screen and stating that it can be passed.
[General Questions and Answers] JordanMoore1371:
I seem to remember having this happen to me too. I guess it may be normal? Regardless mine works fine now and it is still unlocked. I am excited to see if anyone is able to find/create a firmware so I can through linux on this bad boy haha.
[General Questions and Answers] Jerryvail924:
Has anyone tried flashfire and flashing supersu zip?
[General Questions and Answers] hauckk@sfreserves.org:
Flash fire requires you to already be rooted
[General Questions and Answers] mrmazak:
Well I have experience with dirty-cow and using it to achieve a root shell. but all attempts to use the exploit on this device fail.

logcat while trying to exploit has this warning line.

3135 W dirtycow: type=1400 audit(0.0:20): avc: denied { module_request } for kmod="personality-8" scontext=u:r:shell:s0 tcontext=u:r:kernel:s0 tclass=system permissive=0

my other devices running same build of dirtycow do not get this message.

the test I am starting with is simply

$ echo some text here > foo

$ echo some other text > foo2

$ chmod 0404 foo

$ ./dirtycow foo foo2

on all other test devices the contents of "foo" get over written with the contents of "foo2" when I try this test. On our el-cheapo rca tablet nothing changes, so this method as starting point for getting root is not gonna work.

I have started looking for other devices with same board/ chipset to find other options of root, no luck yet.

rockchip/sofia3gr is the board.
[General Questions and Answers] fsebentley:
Have you made any attempts to boot from fastboot using an external recovery ?

ex. fastboot boot recovery.img

or fastboot boot zImage initrd.img second.img

My attempts with this so far have yielded with the first method "too many links" errors

and with the second it seems to attempt boot but hangs at initial screen. The hangs with this method could be simply an incompatibility with the Kernels that I have been trying but I am unsure at present... I have tried the zenpad 7 kernels and the Teclast X70 ones. with same results on all using both methods. If a bootable recovery capable of installing root ie unsecured then we can root and pull the full Firmware off and begin some work on a suitable custom recovery to flash to the device.

You might try those devices as well in your attempts, i am continuing to search for others as well as an firmware that might be out there for this device... I have requested a copy of it from RCA but so far they have just sent multiple acknowledgements that I made a request.
[General Questions and Answers] mrmazak:
I have tried two different device recoveries. With fastboot boot, both flashed the screen white but then returned to fastboot, so obviously not compatible versions. That's mainly what I'm searching for other devices with the board chip setup, maybe if we find a similar device it may have recovery

i found this one that says it works on intel chip androids. but still not booting, but it tried. I got the reboot warning about unlocked boot loader and then a multicolor static followed by the rca dog. but tablet was "stuck" in broken fastboot mode.

Broken because commands did not work (fastboot reboot) but fastboot devices showed conneted, sortta (sn was reported as ???????????)

https://xdaforums.com/dell-venue/general/dell-venue-8-cwm-unsecure-boot-recovery-t2866925

its closer than other ones i tried, and it showed that fastboot boot is a function that should work.

I am in process of trying this method out. Old I know but, its a start

https://xdaforums.com/android/development/intel-android-devices-root-temp-cwm-t2975096

Update:

Apparently I was on dead end trial there. In the thread from the op, it says will not work beyond android 5.1
[General Questions and Answers] Plasmastar:
Support finally got back to me, unfortunately I also asked about the tablet's battery life, and that's the only question they answered. Replying back asking about stock rom again.

P.S. I'm getting a life of about 1.5 - 2 hours in use. Is this normal?
[General Questions and Answers] hauckk@sfreserves.org:
Battery life is really bad on this tablet from my experience
[General Questions and Answers] Plasmastar:
Just got this.
[General Questions and Answers] hauckk@sfreserves.org:
Hmm android is open source so they have to provide some parts at least Samsung has open source files you can download there lying to you
[General Questions and Answers] DGHQuadguy:
O.K., so I came across this thread looking for help on this tablet and a root program for it. I see no one has gotten anywhere with it. I am trying to root it so I can use the tablet for a First Person View screen for my quad copter. I have a wireless video receiver for Android devices that connects to the tablet's USB plug and should allow it to display video from the camera on the quad. I got it to work on my Hisense Sero Pro but it got stolen a while back. Basically I need the devices OTG firmware/software to recognize the wireless input. Is rooting the only way to do that? I'm barely able to understand all this stuff but always willing to learn and not worried about a $40 tablet.
[General Questions and Answers] mrmazak:
More than likely your gonna need more than root to be able to add otg. Otg is a device profile created by the kernel. So if it does not now. You will need custom kernel , I think to use it.
[General Questions and Answers] mrmazak:
[MENTION=2472806]vampirefo[/MENTION] Everytime I search for custom recovery for this device (RCA voyager) your name comes up. Are you still working this device sir.

Current model is different from the ones from few years ago. (They used to be mtk chips) now the are Sofia (Intel atom form factor) rk30sdk board.

So far trying to "fastboot boot recovery.img". Your recovery comes closest to booting. Using yours it actually reboots to the boot image but then remains in fastboot mode. Using varies other recovery images (not ones for Intel chips) do nothing, and device stays in fastboot.

Any help or confirmation of your interest or involvement would be appreciated .
[General Questions and Answers] vampirefo:
no I am not working on this device.
[General Questions and Answers] hannuuh:
I am also trying to root the same model tablet. I got it as a gift and all I would like to do is delete the unnecessary apps on the device and then I would most likely unroot it. Does anyone know of any other way I could delete these apps off the tablet without rooting? OR has anyone found a way to root the tablet yet?
[General Questions and Answers] fsebentley:
Im still working on rooting it... I will eventually find a Boot or recovery image that will work. I will share whatever is found. So far RCA has not been co-operative in giving access to the Firmware. I am presently working on contacting Alco the Manufacturer but I am not too optimistic they are a Chinese maker and typically those can be difficult to obtain information from also considering they are a supplier for other companies the liklihood of co-operation is not high.
[General Questions and Answers] mrmazak:
I am lead to beleive that this git hub source, may be similar enough to this device to make recovery. but I do not know for sure.

link was found in forrum about sailfish os and this version of rca voyager was mentioned.

https://talk.maemo.org/archive/index.php/t-96708.html

link to source on github

https://github.com/bq/edison-3-mini

do you know how to compile recovery from kernel source?

also found that maybe the UBISLATE-3G7 might be similar. I am downloading there stock rom to try and boot the stock recovery to determine if it can be used as base to port twrp.

will update soon if it works.

http://firmwarefile.com/datawind-ubislate-3g7

this firmware is one complete img. no seperate recovery img. Unless it can be unpacked.

So far I have not found a way to unpack the main IMG. All the unpack methods I have tried error out with unknown compression
[General Questions and Answers] fsebentley:
The rct6873w42 is based on the Atom X3 soc, the sources you have are on the Atom Baytrail... slightly differenty SOC so not applicable. The Other link appears be to an MTK based tablet.

I have compiled from source code for other SOC's and I have the source that is provided for the Atom X3 yocto project I think... I have not had a chance to go through it yet to ensure it is what is needed. I also have the firmwares for the Asus zenpad tablets using the Atom x3 as well as the Teclast X70 with Atom X3 SOC. These firmware present a new to me at least twist in that they are in an unfamiliar format... ie .fls which is different in that I cannot extract them using the Standard android abootimg tool for android boot images. I am searching for a tool to convert them or extract and re-build these but so far i am not having success. I am continuing to search for other devices that use the Atom X3 to obtain images as well.
[General Questions and Answers] mrmazak:
The other link is a tablet that was released with three versions having mtk processor and one having Intel
[General Questions and Answers] mrmazak:
Removed
[General Questions and Answers] fsebentley:
I will have another look...

Second look the Files on the Firmware page are Type 1 - This is an Allwinner A13 image file.

Type 2 - This is an MTK Device as well as the final 2 images in the list. If you want to extract the First ones single .img file you can use Dragonface for allwinner, but a dead giveaway that this is an Allwinner device is that it comes with Livesuite which is the Allwinner Flash tool.

I will continue to search for other Atom X3 based tablet firmwares, all help is appreciated and any find is worth checking out :).
[General Questions and Answers] mrmazak:
[MENTION=2472806]vampirefo[/MENTION] , as an extension of our conversation else where are you saying if the community here donated enough ($~35-40) you would buy this tablet , and you are fairly confident you could root it?

Sorry I don't mean to put you on the spot here. But I think I did. Sorry to be pushy if that is how it looks.
[General Questions and Answers] vampirefo:
I own this Intel, see if it close to yours.

http://www.bestbuy.com/site/insignia-8-tablet-16gb/5157800.p?skuId=5157800

http://specdevice.com/showspec.php?id=09d0-a9b4-0033-c5870033c587
[General Questions and Answers] mrmazak:
There is lots to compair. Chips looks same.

http://www.specdevice.com/showspec.php?id=18cb-6411-0033-c5870033c587

Main board is different though
[General Questions and Answers] vampirefo:
Main things are kernel, processor, OS.

All seem to match, most likely I can root it with my kernel.
[General Questions and Answers] mrmazak:
Can we try it. ?
[General Questions and Answers] vampirefo:
No, rooting Intel takes work, you can't just flash SuperSU, you will brick your device.

On 5.1 and earlier, just flashing SuperSU was enough, SuperSU can't unpack Intel Android 6 and up boot.img.
[General Questions and Answers] mrmazak:
We need some responses from others here on thread. Some commitments to donate, .

We have a recognized dev offering to root , but does not have the device yet.
[General Questions and Answers] vampirefo:
I will upload a recovery for you to see if you can boot it, under no circumstances should you flash anything, don't flash root, it will brick your tablet.

The recovery is only to test if it's possible to root, and if so backup system, boot.img recovery.img.

These new Intels hate TWRP, they allow cwm.

Anyway your bootloader must be unlocked.

fastboot boot recovery.img

This way nothing is damaged, either the recovery will boot or it won't.

---------- Post added at 12:20 PM ---------- Previous post was at 12:10 PM ----------

Here you go, do not flash recovery, do not use recovery to flash anything, only attempt to boot recovery nothing else.

fastboot boot Intel_cwm51_recovery.img

https://www.androidfilehost.com/?fid=673368273298925451
[General Questions and Answers] mrmazak:
Thanks. I have it downloaded to phone now. Away from tablet and laptop until tonight. I will try to just boot it.

Is adb active in recovery? If so is it safe to dd or cp dev/block, to have backup's
[General Questions and Answers] mrmazak:
OMG it is almost good

fastboot boot made it goto the RCA boot logo image, then screen went black.

but I am able to see device as adb device and adb shell returns with a # promt

rebooting to system then will go again to pull boot.img if possible
[General Questions and Answers] vampirefo:
Means your mount points are different than mine, get recovery.img also.
[General Questions and Answers] mrmazak:
still searching for the right one.

the names are not as expected
[General Questions and Answers] vampirefo:
They are correct, pull both boot and recovery.

boot

dd if=/dev/block/platform/soc0/e0000000.noc/by-name/ImcPartID071 of=/sdcard/boot.img

recovery

dd if=/dev/block/platform/soc0/e0000000.noc/by-name/ImcPartID121 of=/sdcard/recovery.img
[General Questions and Answers] mrmazak:
here they are

Pulled stock recovery and boot images and the unpacked image and stock system.img

https://drive.google.com/open?id=0ByJNKJ8bGC50ZVFfa2lmTkExQjA
[General Questions and Answers] vampirefo:
That's as far as I can go without the tablet.