yashsingh1/xdaforums huggingface dataset:
[Android General] Jacube22:
New Tablet Is now Out

The newer tablet is out, and It runs marshmallow. It is called the Viking 2, with model number RCT6603W47DK. (At least, I'm pretty sure it is.)

It apparently has the same chip, cameras, ram, resolution, and storage capacity. It sounds like this could work! Unfortunately, I haven't seen an update that isn't "EMMC" crap yet.
[Android General] Bogram:
I've been busy with other stuff and haven't done much poking around but I saw this post on androidpit:

Looking at the side Usb A port, there is 5 recessed pads in front of the normal usb pins. If I eventually open my case, I'll try to see what they hook to. 5 pins is the same number a micro-usb otg connector has (4th one is an id pin to set host/slave, while the ground is pin 5) and my earlier poking around in /system/devices/ did suggest the usb A port was an otg one running in host mode while the microusb charge port had no device entry at all, the bottom usb_pogo port is listed as a standard usb host port.

Edit: Actually, that really looks like a usb3 A plug. More investigation needed, but usb3 plugs are all supposed to be blue. (Looks like not all actually are, I just checked a laptop and they look identical to the one on the tablet) I'll take a look at the bottom of the board later to see if I can tell where they go, no time now. lsusb reports one usb 2 & one usb 1.1 hub.

ubdroid@localhost:~$ lsusb
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[Android General] erlucky:
Hi all

I have similar problem with my lk.bin for unlock bootloader.... Vol+ not actived and i not can confirm for unlock bootloader.

Vol- is ok but go back to menù

I have try patch by @Bogram but my lk.bin is different and give me error.

How can patch my lk.bin?

link ---> http://www.mediafire.com/download/c56o1b8k3xro696/lk.bin

My device is MT6795 android 5.1

Big thx for your help
[Android General] terminator sename:
im using the viking pro RCT6303W87DK hey guys i tried to replace kingroot by superSU using an app called superSUme... after doing it the new app superSU asked for an update of the binary what i also did... after that superSU asked for rebooting.. i pressed yes and my tablet rebooted but i cant get to the home screen .. it will be loading but never get to the home screen ... i hard factory reset it but still not getting to the home screen ... i dont know what to do now ... do i have to flash the ROM.. if so where can i download the tablet s ROM
[Android General] NepoRood:
Go here, make sure to download and flash the proper firmware version for your tablet, there's a lot to choose from. If you run into problems, post in that thread
[Android General] ctgcwiqc:
Game pads for this tablet

So, I can't get my wireless XBOX 360 controller to connect to this tablet. It apprears USB OTG is not supported with this device. I have the USB wireless controller adapters which work with Ubuntu/Mint/Windows/Android MotoX & MotoX2 so it must be the tablet. I have tried it on two of my four tablets (All RCA Viking Pros). I have ripped open two of these already, but never checked to see if micro USB is for charging only or what. I have to rip another one open soon so I will take pictures then so we can all see the guts. The micro will not power on the wireless adapter. If I plug straight into the USB port it lights up, but will not connect.

On a side note, I have two amazon (fire) Bluetooth game pads and these connect easily. Am able to use Tincore to map controls. Either I have not mastered this program, or FPS games do not play great utilizing this program. It works, but leaves a little to be desired as far as sensitivity. Kinda hard to get a head shot!! My contribution FWIW. Also noticed the keyboard registers as a USB keyboard. There are four pins there so I guess it is USB utilizing proprietary connection. I wonder if this could be utilized for anything special that the side USB port blocks or something.
[Android General] banka23:
Hi,

I know this is a little behind the times, but I lost in this long conversation. I have RCA 10 Viking Pro

model RCT6303W87DK,

Kernel v.3.10.54,

Build number RCT6303W87DK-Android5.0-V32-V1.9.1.

I really need help to root it and if it is possible to update it to Marshmallow. Is there any chance someone help me to do it.

Thanks in advance for any help :)
[Android General] Grimm____:
Where is this file located so i can make a backup of the file?

---------- Post added at 08:14 PM ---------- Previous post was at 08:09 PM ----------

the easiest way to root it is king root and you can fined that here :

the only thing is after root it will tell you that you have a security error. DO NOT PRESS FIX. it will make your buttons and keyboard not work.

that will root your tablet and install superuser for you but you're going to have a huge problem finding a custom recovery that supports this device.

---------- Post added at 08:18 PM ---------- Previous post was at 08:14 PM ----------

the easiest way to root it is king root and you can fined that here at kingroot . net

just open the website on your tablet and download the android version and install the apk and open it

the only thing is after root it will tell you that you have a security error. DO NOT PRESS FIX. it will make your buttons and keyboard not work.

that will root your tablet and install superuser for you but you're going to have a huge problem finding a custom recovery that supports this device.
[Android General] banka23:
THANKS, It means it's not worth.
[Android General] James101:
Any updates or roms? I see walmart now sells the viking pro with marshmallow!
[Android General] SassinPr0ph3cy:
Is it possible to root? Ive had no luck
[Android General] GRIMMMMS:
yeah i wish there was a root for this one

http://xdaforums.com/general/xda-assist/rca-viking-pro-10-model-rct6303w87m-t3478335
[Android General] lentmain:
for the Pro12.?

Does anyone know if this TWRP works for the Pro12..? It's an RCA tablet....
[Android General] XxdeadhatexX:
i rooted this tablet yrs ago with king root and removed king root to supersu using supersu me. i did a factory reset to remove root and start fresh but am still rooted with read only permissions that needs to change to rw. every time i try to uninstall root it fails supersume does block kingroot and the only way to re gget root is to factory reset because supersu will not update binary on normal mode and i have not found twrp for this device. also to mention that i cant uninstall any system apps or install anything to the system the last install i made was to fake gps and after that nothing else could install or be removed from the system. i have also used terminal and kingroot to supersu zip which does remove the kingroot app but still supersu wont update binary even got the latest supersu zip extracted to sdcard and used terminal to install said read only file system and everything except uninstalling kingroot apk failed. it seems to be some sort of broken root threw kingroot nothing can remove this root files without twrp. and even with twrp still may be read only file system
[Android General] James101:
since we have root is there anyway to get usb OTG to work on this tablet? I can't get any webcam or game controller to work. While they all work just fine on other android devices. I also have the marshmallow version of this tablet and it has the same problem, it sees the device but doesn't work.
[Android General] sivansk:
can somebody help me to fix the hard bricked rca viking pro 10 version x.12.x. no blue light while charging, not booting , not able to flash the stock firmware , please help me to fix it , i formatted my tab through sp flash tool and it gets hard bricked or dead

---------- Post added at 09:54 AM ---------- Previous post was at 09:51 AM ----------

can some body help me to fix the hard bricked rca viking pro 10 version x.12.x . i formatted my tab through sp flash tool and it is dead right now . i tried t flash the stock firmware but it is nor flashing so please help me to fix it.:o

---------- Post added at 10:48 AM ---------- Previous post was at 09:54 AM ----------

i tried to reflash the preloader of v77 . i hold all the buttons for more than 2 mins , still the preloader is not flashing , i guess i need to format the tab in order to flash the preloader again , can you please help me to format the tab:)

---------- Post added at 10:49 AM ---------- Previous post was at 10:48 AM ----------

i guess my preloader is corrupted , it is not allowing to reflash the preloader again eventhough i pressed the buttons , please help me to format my tab i will reflash the preloader again , i flashed the preloader of v77 firmware , which one do you prefer??. does i need to format my tab in order to reflash the preloader, please help me...:)
[Android General] sivansk:
i soft bricked my tab it is booting and entering into recovery but it is not recognising in pc im having male to male usb cable i tried to install the cdc driver but no new device is shown , my preloader is corrupted it is not allowing my tab to connect please help me to fix it!!!:(
[Android General] JEDIGENE:
Firmware Backup

Did you ever get this file uploaded? I could really use it right now. If you did, where can I find it? My email is bilirubin@bellsouth.net, in case you could email it to me. Thanks in advance...

I will be putting this all in a toolkit and uploading. This can benefit all devices with mt8127,
[Android General] NeuroElectric:
What drivers did you install? and did you use the mini usb port or the regular port? I'm using a Macbook 13" 2009 model with El Capitan OS X.

---------- Post added at 02:06 PM ---------- Previous post was at 02:02 PM ----------

Where can I download the firmware for the RCA Viking Pro 10? I did a factory reset without a recovery partition and now I can't get any apps toward. Google Play and Services are crashing, I got the latest apks but they still crash when Its checking my info to add an account.
[Android General] NG23:
EM_T8515_V6.4 Firmware

I'm looking for a firmware file download for my RCA 10 Viking Pro tablet. My tablet is already bricked (can't get past the logo screen, I've already tried factory reset several times). I'm trying to re-install the firmware software onto my tablet, as some people say that would help. If you have any alternative suggestions (besides throwing the tablet away), I'm interested,:)

The motherboard id number is: EM_T8515_V6.4; I don't know what the processor number is.

The number at the top of the recovery screen is: RCT6303W87M7-ANDROID6.0-V09-V1.22.30-M08. I think that the 22 is the important number here. Would the x12 files be compatible with my tablet? Or do you know where I could look for a firmware file on my own?

Thank you very much.
[Android General] Casper Young:
Are you still searching for this I'll see if I can dig up my firmware for it. And yes there are different versions of this available
[Android General] vampirefo:
Can't be fat, either ext4 or ubifs, open terminal

adb shell

mount

If you have busybox installed type

adb shell

busybox df -h
[Android General] jerryvail35:
Ext4...
[Android General] Spartan Legionnaire:
I see. The false root is isolated to only those apps, or there are other apps with that problem?. I am thinking of using titanium backup and SD maid with root, but probably other apps too that will require root.
[Android General] jerryvail35:
You'll have to try and see.
[Android General] Spartan Legionnaire:
I don't want to brick my device. I don't have the money to buy another one, but I can't live with this useless bloatware [emoji28]
[Android General] vampirefo:
You should be able to fix it by flashing the firmware in this thread.
[Android General] sumer1:
I rooted mine lastnight and everything went fine. I used king root then used this guide to replace kinguser with supersu

http://www.w0lfdroid.com/2015/05/How-to-Remove-Replace-KingUser-KingRoot-with-SuperSU.html

The files are in the link.

BTW you can flash the "replace the kinguser zip" with flashfire beta. On another Rca forum a member mentioned it. I did do that i used terminal emulater-it's really easy either way. I also have exposed running on it as well.

Here's the link to the other thread.

http://xdaforums.com/showthread.php?t=2777756&page=19

cheers
[Android General] jerryvail35:
Wich xposed did you use.
[Android General] Gutter3052:
So I got stupid last night and modified my build.prop file, and now when I turn it on, it gets stuck at the Viking Pro screen and never loads. I would assume it's the file that needs to be replaced, which thankfully I have the original, but how on Earth do I get it on there? I can still access the system recovery, but have no idea how to get the original build.prop back in the system file. Plugging it into the computer seems to do nothing as it pops up saying it doesn't recognize the device.
[Android General] sumer1:
Have you tried reseting it?
[Android General] jerryvail35:
I know there is an update.zip file on here some where. Maybe you can put the file on flash drive and install it using your usb port on your tab.( just a thought,never tried it)
[Android General] Gutter3052:
Done a full factory reset multiple times, cleared the cache, all to no availability. I have now figured out how to push the build.prop file back on to the device through recovery, except when I plug the device into my computer, it doesn't recognize it at all.

Tried this already, aborted both the updates.
[Android General] jerryvail35:
Did you wipe all the cache's? And have tried using sdcard. Às for hooking it to a pc, Rca told me it cant be.
[Android General] Sotarsh:
No luck hooking up the RCT6303W87DK via USB to root

Ok, so I am trying to figure out what I am doing wrong :

I have an RCA Viking 2, RCT6303W87DK. 32G Model, with rom RCT6303W87DK-ANDROID5.0-V66-V2.12.20-B (slightly different than some others posting here perhaps).

As with others I found that the MicroUSB port seems to be broken / disabled / neutered for doing anything other than charging.

I have built a USB A Male to Male cable, and I have also gone out and bought a USB A Male / Male (USB3 though - not sure if that should be a problem, but it doesn't work at all)

The purchased USB3 A-A Male/Male does nothing

My hand made one works (all lines to all lines , red to red, black to black, etc..) does show some working senarios

With the tablet on, and developer usb debugging turned on, hooking up the cable shows nothing on the computer - as if nothing was hooked up. (doing this from Linux, and tailing the kernel logs as I get more details than from my Windows desktop)

With the tablet off, hooking up the cable has the device come up as MT65XX Preloader - V=0e8d P=2000, but only if I supply power via the normal power jack, or via MicroUSB

For above (in Linux) about 2 seconds after it registers, I get a USB disconnect, and that's the way it stays until I remove and reinsert the power

If I boot into recovery, and then into fastboot, it registers as 0bb4:0c01, communicates a Product (RCT6303W87DK), Manufacturer (RCA), and a Serial Number (ZLWSORLZ99999999), and stays stable (no disconnect).

The fastboot mode USB works with or without power supplied (via power jack, or MicroUSB)

If the unit is powered on and booted into normal operation, I get nothing, no mater what combination I try. USB debugging on, off, neither cable, extra power provided or not, docked to keyboard or not.

So, since others have been able to root their device (with a USB A Male to USB A Male) via the USB2 port, what magic combo am I missing ? Do I need to cut the power lines on my home made cable and leave just the signal ? Do the data lines need to be crossed (D+ to D-) I think not since they are differential signals, and crossing would be like going Ghostbusters with the streams :eek:

The USB2 port does still work in normal mode - I can stuff in a USB thumbdrive and all is good.

Can't get Kingo root going until at least I solve this step - the unit has to at least show up.

What am I missing to get some kind of response from the USB2 Debug connection ?

Any help / guidance would be appreciated.
[Android General] sumer1:
I'm not sure why you're using USB to root. if you turned one page back you'd see this:

http://xdaforums.com/showpost.php?p=64569098&postcount=87

http://xdaforums.com/android/general/root-rct6303w87dk-5-0-lollipop-t3116016/page9

Cheers
[Android General] Sotarsh:
Thanks for the reply.

Yeah, figured that out - I was reading Kingo no King root. I have used Kingo in the past, and it can't root this device with just its android app. I have now rooted with King Root and it worked.

Still would like to know how to get the USB debugging working as some here have been able to do.
[Android General] sumer1:
Glad you got it sorted out. I didn't know about the USB debugging thing. I'll have to fool around with it. I guess you saw in the thread I linked - you can install xposed on it:)
[Android General] sickles101:
I just rooted mine last night with just kingroot. Didnt give fake unroot, as far as i can tell. I didnt do the supersu changeover because it didnt work. I tried the trick but the Tablet rebooted into root. Ran Kingroot again, stayed rooted even after reboot. However, im having a major problem with the tablet recognizing my xbox360 controller. After several days of trying tricks, still cant get any program except USB Hostcontroller to recognize the controller and give a product and vendor ID. However, nothing recognizes the keypresses and a different XBOX360 controller doesnt do anything. I even put the xbox 360 controller .kl files into the keylayout folder. Still nothing. Need some help ; /
[Android General] jerryvail35:
Tincore keypress worked for my tab. Got it from play store.

---------- Post added at 08:22 AM ---------- Previous post was at 08:19 AM ----------

That was the problem i had with king root. I'd give apps root permission ànd they didnt work until i did the supersu swap.
[Android General] sickles101:
I tried tincore.. didnt even seem to register the pad. Yea.. i couldnt achieve the supersu swap and i fear a bricking if i try again
[Android General] Gutter3052:
All cache has been cleared as well multiple times... How would using a SDCard help replace the build.prop file? I figured the only way to replace it would be to use ADB and push it through that way, but if there's another way using a .zip file or something, any help in to this matter would be greatly appreciated, otherwise my only other option is to send it back and hope to get a replacement...
[Android General] smartmanvartan:
hey guys, just picked up one of these... I rooted it with kingroot and installed supersu with binaries and removed all my bloatware. Now i want to start tinkering with it so i tried adb with micro usb and got unknown device like everyone else. Before i go get myself a male usb to male usb cable;

- Can you guys confirm that it works?

- Did any of you already build a custom recovery and can you link it for testing purposes?

- Did anybody try the "fastboot oem unlock" command?(long shot but you never know..)

- Did anybody try booting into custom recovery using the "fastboot boot <recoveryimg>" command? (usualy gets around a locked bootloader)

I'm gonna go get a cable anyways but I figured I'd check to see if these steps were already tried...
[Android General] jerryvail35:
No custom recovery. As far as the rest I have no clue. Can't get mine hooked to a pc. For some reasons , RCA has it locked.
[Android General] vampirefo:
How much did it cost?
[Android General] smartmanvartan:
I paid 135$ CAD tax in at walmart.ca
[Android General] vampirefo:
I am thinking about getting one, don't know yet.
[Android General] jerryvail35:
Got mine at Walmart on sale for 79.99...
[Android General] Bogram:
Using a home-built usb A cable I'm able to get into fastboot by holding power and volume up, then choosing reboot into bootloader. Windows 10 installed an HTC driver that seems to work and typing "fastboot oem unlock" brings up the bootloader unlock screen on the tablet but it wants you to confirm (Vol. Up) or deny (Vol. Down).

Unfortunately it won't accept either button and I get stuck there with no option but to hit the reset button to escape it. Any ideas?

Edit:

Combinations like Pwr + Vol. Up don't seem to work, the only button that seems to respond is reset which just powers it off.
[Android General] jerryvail35:
Maybe it's a combination of keys like volume up and power button( just an idea ).
[Android General] vampirefo:
Have you tried adb reboot bootloader that should boot you into fastboot, to get out of fastboot the command is fastboot reboot.

The volume buttons not working is a problem cause you have to agree to unlock before unlocking will begin.
[Android General] smartmanvartan:
I know got to the same point last night. So frustrating to be close to unlocking the bootloader and not being able to do so. What I did to get to bootloader was I used the terminal emulator and used the reboot bootloader command as superuser. I'm trying to find out more about the OEM unlock command, maybe there's a permutation of the command that unlocks the bootloader without user input on the device... Still can't get adb to work tho...
[Android General] smartmanvartan:
This is interesting...

http://xdaforums.com/showthread.php?t=2300654
[Android General] clsA:
I tried all these today also and it's no go. Until someone comes up with an unlock this tablet is pretty much going to remain stock rooted with no chance of recovery
[Android General] jerryvail35:
Just another thought, has anyone tred it with the keyboard attached?
[Android General] clsA:
yes, I even tried with a mouse and a different keyboard
[Android General] smartmanvartan:
Yeah. .. I even plugged in some earphones with volume control. .. no go on both

---------- Post added at 06:14 PM ---------- Previous post was at 06:08 PM ----------

Has anyone gotten adb to work?
[Android General] jerryvail35:
Well at least we can still flash to the device without cwm or twrp using flashfire from chainfire. So maybe there is still away to get roms and recovery.
[Android General] vampirefo:
Has this tablet ever received an OTA update?
[Android General] smartmanvartan:
I found a previous version of the firmware for this tablet on the net.. Has a different date and build number. So I'm thinking it had at least one.
[Android General] vampirefo:
I think the firmware listed in this thread is probably your answer, does it match your version?

I am downloading the RCT6303W87DK-ANDROID5.0-V63-V10.12.0_T8515B_V6.3_PCDDR31G_20151106.zip posted in this thread to see what is in it.

Can you post your build.prop, I will take the system in this apart and get the build.prop out of it and want to compare with yours.

This is build.prop from system

http://pastebin.com/j93FmbQJ
[Android General] smartmanvartan:
View attachment 3598157

mines a v66
[Android General] ewilley2008:
I've found alot more RCT6303W87DK files…. I haven't looked at any of them yet.

http://baiduyun.57fx.cn/so-result.html?keyword=RCT6303W87DK&type=share
[Android General] vampirefo:
Your firmware is older

14 Aug 2015

This firmware is

06 Nov 2015

Apparently the bugs in your was fixed in this version.
[Android General] smartmanvartan:
Maybe they fixed the volume keys issue while trying to unlock the bootloader...
[Android General] vampirefo:
Perhaps.

---------- Post added at 10:35 PM ---------- Previous post was at 10:35 PM ----------

How do you download from that site?
[Android General] Sir Jaxxy:
Can anyone help me with a boot loop issue. I have one that will load up till the "Viking" screen and then just stays there. I can boot into recovery and have cleared the cache as well as done a factory reset, multiple time, but neither do anything. I am rather new to flashing Android. I had this tablet working, rooted it with Kingroot, installed Xposed, uninstalled Xposed, then tried to swap Kingroot for SuperSU. It was on the final step that it went into the boot loop.