yashsingh1/xdaforums huggingface dataset:
[General Questions and Answers] TripFX:
Im really sorry guys but it looks like im done with this tab. Wife threw it away. I really hate leaving you guys like this but without the tablet i can no longer do anything. I would like to thank everyone who has helped and i am thankful that we was able to atleast fix v31 variants as well as get twrp working for it as well as get twrp working for v38 variants. I do not know if codelover will continue doing anything or not as it is up to him and he has yet to hear the bad news. I will be touching up the release op however there wont be anything knew.
[General Questions and Answers] synius:
I however will continue with development towards ROM releases

sent from my RCT6773W22-V31-1.10.0-TWRP-V2.8.6.0-Compiled-by-Codelover
[General Questions and Answers] TripFX:
thanks synius and gl. v38 variants your going to need to know the real start addresses in order to get it to work rca wont help any expect reflash it for you. if you have warranty its free if not its $20.
[General Questions and Answers] synius:
Think I found a couple errors in scatter in regards to partition labels names, shame your dropping out of this forum

Wanna test v31 start addresses may be universal with changes to partition sizes and the devices images

I do need to know how you stripped the preloader.img from 16 mb to 128 KB And converted it to a bin file? For v31. And if they needed to be bin files

sent from my RCT6773W22-V31-1.10.0-TWRP-V2.8.6.0-Compiled-by-Codelover
[General Questions and Answers] TripFX:
without tablet i cant really do anything as far as dev questions goes he might be done as well with it but you might want to pm him about the dump conversions.
[General Questions and Answers] codelover:
So TripFX informed me about his tab, sad to hear that, but at the same time it might be a good news too as we wasted too much time on it.

synius, regarding the dumped files, i mentioned it long ago that you can not use it directly as there are some post-processing jobs needed.

For example, preloader - you will need to slice it out from the dump, for this tab, find it's header that starts with \x4D\x4D\x4D\x01\x38\x00\x00,

now that you have it as starting point, cut it off and strip all trailing null terminated characters after the binary content, then you have it.

If i am not mistaken MTKDroidTool & some other script can do this automatically, but i can't tell which one work best for this tab as i haven't test any of them.

As for the format, it's simply a naming standard, you can give it ANY name/extension, but SPFT has been designed to load preloader*.bin automatically.

About the soft brick, i honestly doubt you will need to flash whole firmware just to fix it, perhaps a few factory resets or simple patch by rca would fix it.

I am afraid that's all i can offer for this tab as i might ruin your chance of getting it fixed by someone more knowledgeable & experienced than me.

Good luck to all who still trying to fix the bricked tab!
[General Questions and Answers] synius:
There are 2 spots in preloader that use those hashes

I also Reliezed All the files need to be stripped of null not just one

I see the tediousness of this
[General Questions and Answers] SupaJ:
Hi Guys, I have a brand new RCA Voyager tablet which won't boot. It has never booted. I have attempted a factory reset but that still did not help. It goes past the RCA white screen with the 2 dogs, then to the RCA animated logo against a black background but won't go any further. It says, RCT6773W22-ANDROID4.4.2-3101-V25-V1.3.20 on the recovery screen. Will the files posted here(namely scatter files for v28, 31 or 38) work with my tablet which apparently is V25. Thanks.
[General Questions and Answers] synius:
Contact rca and report it as you said brand new doesn't work they'll replace for free

sent from my RCT6773W22-V31-1.10.0-TWRP-V2.8.6.0-Compiled-by-Codelover
[General Questions and Answers] SupaJ:
Wish it was that easy. Where I live(on an island) it will cost me more to return the tablet than buying a new one. If I try scatter 28, 31 or 38 posted here, will it brick the tablet or is it that some features may not function?
[General Questions and Answers] synius:
Explain to them threw email a software update bricked tablet they will mail u free replacement with a return label you mail back threw the mail post

Your touch or charging will not function depending on LCM= identfier

Plus addresses may not be correct partition sizes are a definite incorrect about all revision

sent from my RCT6773W22-V31-1.10.0-TWRP-V2.8.6.0-Compiled-by-Codelover
[General Questions and Answers] synius:
update

the twrp recovery doesnt work properly it doesnt mount system saying it cannot be attached

so back to square 1 there is no fail safe method for recovery
[General Questions and Answers] vampirefo:
Yep, that was one of the reasons I gave up on twrp for ubifs, carliv cwm recovery works just fine on them.

My digland has been restored many times by the recovery I built for it using carliv source.

I use twrp on other devices that use ext4, but not on ubifs.

Twrp has corrupted your system, it doesn't know the correct detach and reattach steps.
[General Questions and Answers] Xactot:
Hey all. So I've got a "slight" problem. My screen on this tablet is cracked internally. So I was wondering about a couple of things. One, does anyone know of any apps that can mirror the screen of the tablet, say, on a computer? I have adb debugging enabled if that's needed. I need to make a backup of everything as it is now just in case. Not sure what may happen to it if I send it to RCA to get repaired since it's still under warranty. Two, can I make a user backup from stock recovery and restore it on another device? And three, I heard that someone had replaced their lcd on their tablet before. If so, could anyone guide me on that? Thanks
[General Questions and Answers] vampirefo:
Google is your best friend.

http://dmzilla.com/2014/07/21/how-to-display-or-mirror-an-android-device-screen-on-pc-no-root/

No you can't make a backup from stock recovery. No guides on replacing the screen, google should help you find similar guides.
[General Questions and Answers] synius:
vampire got a source file i can use for recovery might save me a heap of trouble if i can use my backups with that recovery
[General Questions and Answers] vampirefo:
Carliv github or mine either has source code, but cwm won't restore twrp backups.
[General Questions and Answers] Onknight:
http://www.kingoapp.com/ Go here download Android Apk Right under the windows file

Install the APK to your Tablet in downloads folder

Make sure have Table to allow unknown sources

Run the explorer app to file and install

Should work and root fine .
[General Questions and Answers] Xactot:
What I meant was, "Can the user backup made in stock recovery on one tablet be restored on another?"
[General Questions and Answers] vampirefo:
No
[General Questions and Answers] Xactot:
Ok. So next question. Are there any applications that allow control of the tablet from a PC? By control I mean able to use the computer to simulate physical touch events.
[General Questions and Answers] vampirefo:
Sure there is, Google the names of them none can be installed on a broken tablet.

The apps have to already been installed and running.
[General Questions and Answers] nathanski:
I HAVE AN EXTRA lcd n& digitizer but one tenth of the top left dosent pick up touches ,, its your if you like ,,, can pm address and you mail a padded sleve to me with a return label back to your address,,, im not shure how much that could help seeing as its a little like rocket surgery to disassemble and merge .... best of luck ,,,, chrome cast works half assed,, as well as castanyting apk

... best of luck
[General Questions and Answers] Xactot:
Thanks. I'll attempt to install and use Airdroid.
[General Questions and Answers] synius:
Unfortunately dumchar_info doesnt supply info for mtd19 system mtd20 userdata mtd21 cache

/proc/mtd does provide sizes

Tried using mtkstudioRom

To calculate sizes to a make a different scatter with the extra 3 partitions I run into insufficient space

The problem I see with mounts

Is system gets mounted rw

Not ro

Rom toolbox doesnt work to remount system ro due to ubifs aspect

That permission causes system to get written too after boot

I've tried setting files read-only

Also didn't work

Hard to say with readback and I'm not gonna dice it. No experience

So the question is how do you flash the file as read only so it remains whole accoss reboots

I noticed USB debugging is not working at all

The only mount that's ro is rootfs why is that? Is it because of protect_f

Also mtdinfo states for partitions in question write true

One time programming doesnt work its not supported parameters page in spft.

As is I give up not sure how to make it work
[General Questions and Answers] An-Droid-Boss:
how to root the rca tablet

I went about 15 pages in this subject, and I found nothing, only some things that worked for some and not for others, and those posts were not specific, at least to me. All I want to do is root the rca so that I can put xposed framework on it.

If anybody has a step by step that really works, I would appreciate it if you shared.

Thanks
[General Questions and Answers] An-Droid-Boss:
Thank you, I will try it when I get the chance, don't know if worth it to do it on this one, cause I've been getting a red tint on all outlines on screen, but if I screenshot, it shows up as nothing, so if I do root this tablet, then I won't be able to take it in to get replaced cause I got a warranty on it, but if I do take it to be replaced, it might be months, see my dilemma?
[General Questions and Answers] synius:
might be a developer setting switched on for outlines

the problem i have is with spft not flashing RO attribute on the images rather it flashes them with RW

been searching for a solution but no luck

my tablet boots after flash but apon reseting the system with rw is written to and erased from the supposely ro system which is non existant due to the system flashing it as rw

so in theory if i can figure out how to flash it RO my problem would be fixed
[General Questions and Answers] An-Droid-Boss:
Nope, not developer problem, I'm thinking it might be something with backlight possibly, anyways just wanna say that to the rest of your reply I'm clueless, I'm not much of an expert
[General Questions and Answers] void513:
RCA 7 Voyager RCT6773W22 black

I was on a few months ago try recover my tab after a bad update.i used a v28 flash wich works to some point . but at closer look my tab on walmart where i bought it the RCA 7 Voyager RCT6773W22 black that the sold seperate from the rest of rca voyager same model but os was 4.4.4.. but since i did a complete flash with out finding what version it was i use v28 and flashed with 4.4.2 android os.if any one can help with this be grateful.im realy thinking of buying another of same one i got and making a dump of every thing i need just in case and compltely fix it.if i doo ill need help on dong the dump of imgs.this could also a possible another version we dont know about yet.
[General Questions and Answers] synius:
As of right now no flashing works on these tablets

It flashes but is not able to reboot and after playing around freezes abruptly

I've tried alot of configurations non have worked

I am mailing my tablet back to get it fixed again

Then I'm following vampirenfo lead and he claims carliv touch recovery. With ubifs support restores correctly. Not confirmed by me

I cannot fix these tablets as I have no exprience with ubifs and there mount pts
[General Questions and Answers] vampirefo:
The recovery works correctly on ubifs with my mount points, and using the method I posted how to use recovery.

The recovery will not restore twrp backups, or fix damage partitions caused by twrp.

It will restore backups that is made from it though.

http://xdaforums.com/android/general/root-dl701q-cwm-recovery-firmware-t3046756

To port to rca change kernel.
[General Questions and Answers] nathanski:
hi all

im i crazzy,,, but flash tool works with this in every way ,,,

yes im cazzy ,,, i begain with rooting over powerin it with xposed modds then uninstalling every system app and reconfiguring 2/3s of its system ,, then the afor mentioned freezes kicked in on one bad play session ware i had replaced play rezzime with aptoid,,, need less to say i was all in from the get go,,, then came flashtools and a full on war to hard brick and recover,,,,, it took a good scatter ,,, and one hell of a rom sorting to get but my sister is using that tablet all the time non stom now with all be it my ideal vinila mod fin.. stoping point ,,,

,,, and i will say it ,,, buy one from wallmart swap main boards and return same day,,, no law broke and no postage ,,, ps i use the touchless custom recovery and it suits the job fine,, hell

i know it takes good drivers ,,, great comunity files ,, and a nice clean usb cord and toothpick

time the flash use the scatter and hit the hard reset watch the download turn green then charge and hard reset,,, full recoverery,,, and root aggain .... P,S dont even try reading this ,,, :laugh: as allways best wishies team loved this thread ,, wish every one the best
[General Questions and Answers] synius:
My v31 is off to support to get fixed
[General Questions and Answers] Lukas2179:
I got my tablet back in the mail today. After downloading everything I noticed that my tablet is the V18. It took around a month for me to get the tablet back. Any progress of getting custom roms on this tablet yet? Also good job fixing these tablets.
[General Questions and Answers] synius:
No development has stopped
[General Questions and Answers] leetree2001:
RCA Support

All you have to do is change the kernal? What about the ramdisk and the paths do they match our device. Any input would be helpful thanks!
[General Questions and Answers] RcklssNdngrmnt:
If the system ubifs is corrupt, it won't attach properly, so the next attach actually mounts

the wrong mtd on /system

I think what TWRP is missing would be something like this:

umount /system

umount /cache

umount /data

ubidetach /dev/ubi_ctrl -m 16

ubidetach /dev/ubi_ctrl -m 17

ubidetach /dev/ubi_ctrl -m 18

ubiformat /dev/mtd/mtd16

ubiformat /dev/mtd/mtd17

ubiformat /dev/mtd/mtd18

ubiattach /dev/ubi_ctrl -m 16

ubiattach /dev/ubi_ctrl -m 17

ubiattach /dev/ubi_ctrl -m 18

Then something like

ubimkvol /dev/ubi0 -N volume_name -s vol_size

That's as far as I've gotten, as the only ubi* tools i had to work with are _in_ the system partition,

and linked to shared libs with path set to the same system partition, but after a format

and reboot, it seems to mount the partitions in the right places again.

Some basic info on ubifs here http://lists.infradead.org/pipermail/linux-mtd/2008-April/021195.html
[General Questions and Answers] synius:
I do believe u r right. In regards to system cruptibility.. Or file permission. We were using dd and terminal to copy mtd16 which should be the main unwritable system which carries over to mtd19 which the device should use as system mount

With twrp I'm unsure but sounds like ur on to something

But using dd made files writeable

Then flashing these writeable files is messing the mounts up.

I haven't been able to test theorys once I have my device back from manufacturer I can start dev back up
[General Questions and Answers] synius:
New device is v39-2.8.0
[General Questions and Answers] cbentrott:
no nvram backup

there are only 2 differences between scatters userdata partition size and cache's partition type to ubi_img

i agree with vampire looks the same.

the scatter should fix these issues

unless i suspect the address of bmtpool is wrong, on my device it shows it at address 0x0 like preloader

(STOCK ROM UNDICED)

codelover = ( completely unrooted and stock ) no account assiociations[/QUOTE]

please repost a link to the unrooted undiced v31 firmware and do your need userdata and cache to restore prperly i keep getting nvram error

i forgot to backup nvram of my tablet am i screwed:crying::crying:

willing to help you guys in anyway, i noticed tripfx left due to his wife throwing it out is dev on this tablet over forever then im guessing

cant post links as im new
[General Questions and Answers] leetree2001:
Has everyone given up on these? I hope not ,but it looks like the its DOA

And there was so much progress at one time.I wish I had more skills to contribute. Maybe someone will come along and help,or come back .until then thanks for the effort?
[General Questions and Answers] Xactot:
How would I go about installing one of the working custom recoveries mentioned in the previous pages? There seems to be quite a lot of things to do regarding it, and I don't want to brick my tablet or anything because I unknowingly skipped a step or misunderstood something. Thanks.
[General Questions and Answers] revolvinggamer(TGN)YT:
where can i find it

[YOUTUBE][RevolvingGamer][/TGN][/OFFICIAL] how do i get the adb?
[General Questions and Answers] VinMannieRoblox:
No computer Root!

Root without computer.

App: KingRoot (Not Kingo Root););) Have any questions?:confused::confused:

Well reply.
[General Questions and Answers] reaperz09:
Kingroot,kingoroot and all the ones I have tried don't work.
[General Questions and Answers] ummkiper:
So I finally sent my bricked tablet in and within 2 weeks they sent me a new one.and it has Android 5.0 model RCT6773W22B.can't seem to root it like I did the old one :(
[General Questions and Answers] jmacie:
anyone with last years model know if 5.0 can go on ours, anyone going to try? $28 bucks at walmart blk friday.
[General Questions and Answers] ummkiper:
I have both models now.same case on the outside difference is Bluetooth android 5.0 and screen mirroring.I haven't seen anything about 5.0 for the voyager 1. But Wal-Mart has a great deal for the upgraded version,voyager 2.I have not found root for it yet.
[General Questions and Answers] Nate2:
Ok, for $28, I'm gonna get one.

This will be somebody's Christmas gift.

Thanks!
[General Questions and Answers] bot42:
Maybe we should start a bounty thread to get devs attention on the Voyager 2 especially if this thing turns out to be a hot seller.
[General Questions and Answers] vampirefo:
Good luck, if the filesystem is ubifs, no dev including myself will be interested.
[General Questions and Answers] Hizzle:
I picked one up yesterday for black Friday and would love to be able to root it. Does anyone know if there is a valid method yet?
[General Questions and Answers] bot42:
Ubifs is just a file system, I have watched devs craft Roms for mips processors which not only had a completely different architecture from ARM. They also used their own file system. It's merely about motivation of the dev.
[General Questions and Answers] vampirefo:
Like I said good luck.
[General Questions and Answers] Nate2:
The 8GB RCA Voyager II could not be purchased online at walmart.com even 40 minutes after the sale started at 6pm on Thursday.

Browser reported:

"Request Timeout

The server timed out while waiting for the browser's request.

Reference xxx..."

The 16GB Voyager II with keyboard/case was available for $50 on Friday.
[General Questions and Answers] jblaylock:
Me to. Mine rebooted and got stuck on the boot screen after 3 days.
[General Questions and Answers] vampirefo:
Sounds like ubifs filesystem, my as well put it in the garbage.
[General Questions and Answers] h00ch:
All I can find for this tablet are foldout style cases. Does anyone know of anywhere that sells just a plain silicone case for it? TIA
[General Questions and Answers] ki11abyte:
Hi guys

Im new here. I have a voyager with this same model number however it is running lollipop 5.0 stock and i cant find a way to root. any help with this. im not a newbie to mods of this nature. if it can be modded i will find a way to mod it is my motto. i do jailbreaks on ios for cash and no bricks. Please, someone

knows how to mod this thing out there please help.
[General Questions and Answers] bftiedt:
I used the one that is listed on the site. Chrome did the same thing to me. I had to go into downloads and say I wanted to download the "virus" anyways.
[General Questions and Answers] rmontgomery:
Any roms for this?
[General Questions and Answers] kdayotte:
I still cannot get root. Iroot just keeps asking me to install drivers, but never connects. I'm on windows 8 so I might try windows 7. I really want it rooted so I can use folder mount.
[General Questions and Answers] dodendemise:
Haha well I've had root for about a day and already managed to break play store.. At least it was cheap.
[General Questions and Answers] Chowie420:
Tried this out and my computer says the drivers are already up to date. Any help would be greatly appreciated.
[General Questions and Answers] kdayotte:
What did you use to root?
[General Questions and Answers] Chowie420:
Finally got kingo to recognize my tablet properly, but when rooting I get the waitfordevicetimeout error message. Anyone else encounter this while trying to root their tablet?
[General Questions and Answers] kdayotte:
Same for me. Tablet reboots and screen goes to Fast boot. If I hit power to select, tablet boots, but still get timeout. If I hit nothing, get timeout and have to hit reset button on tablet.

I had high hopes for iroot, but no luck with that either.
[General Questions and Answers] jediempress:
Mine goes about a quarter of the way through the update and gives me the error message before rebooting. I've unrooted, removed all apps that require root access, unmounted the SD card.....I'm at a loss as to what else I can do. Hopefully there will be a work around soon.
[General Questions and Answers] bradbarber35:
I've got boot animations working and I didn't do anything special. But I followed what you did for the update and still can't get it to update. Doesn't make any sense. Anybody have any more ideas on what else I could try to get thus updated?
[General Questions and Answers] alleyesonchris:
So I have two of these tablets (mine and my girlfriends) and I rooted them both. Kingo and pdanet worked for both no problem.

Unfortunately mine some how unrooted it self. i really don't know how it happened. SuperSU is still there though even after a factory reset.

Now when i try and root it again, kingo says its was successfully rooted but once it reboots and recognizes it, says there's no root!

Any suggestions?
[General Questions and Answers] Chowie420:
What exactly is the PDAnet used for?
[General Questions and Answers] yojoe600:
tethering
[General Questions and Answers] dodendemise:
I tried kingo then iroot and then it didn't work. Then I installed the pdanet drivers and it finally recognized adb and I successfully rooted with iroot
[General Questions and Answers] TripFX:
First in order to root use pdanet drivers then use KANGO OR IROOT after you enable usb debugging. Secondly if you do root or have already rooted it breaks ota updates since we have a locked bootloader. So dont say why can't I do ota/system updates cause now you know why. If you want to unlock the bootloader either hassle RCA to release tool to unlock it or learn how to reverse engineer. Personally im hassling them about false advertisement over the cpu speed but doubt it will do any good. RCA's website says our tablets should be 1.4Ghz when real is 1.3GHZ thats 400mhz (100mhz*4cores) off from advertised speed or 800mhz (200Mhz*4cores) off from mediatek's advertised speed.
[General Questions and Answers] yojoe600:
Also if you want to stop being nagged by the update you can freeze the update checker with Titanium backup
[General Questions and Answers] bradbarber35:
I don't think not being able to update has anything to do with a locked boot loader as there are others on this thread that have been able to update that are rooted
[General Questions and Answers] 1234west:
Yep. I updated fine and I was rooted. It broke root, and I rerooted after the OTA
[General Questions and Answers] bradbarber35:
If you modifyed any system files that the update patches it will fail
[General Questions and Answers] Nate2:
What's in the OTA update? The tablet currently works fine rooted IMO, and I don't want to risk unrooting it just to get a risky/useless OTA update.