yashsingh1/xdaforums huggingface dataset:
[Android General] Viva La Android R.I.P.:
Yeah my bad. I had forgotten about adb being disabled by default. The person I talked to about your SPFT error says that the error is due to attempting to flash an unsigned image with a locked bootloader. I explained that I was able to flash unsigned images with SPFT, and that you initially got an unsigned patched boot image to install on SPFT. He's insistent that it's got to be a difference in firmware builds. What is your build number again, and did you say you are running official signed firmware?
[Android General] snowman222:
Thanks for your time on solving this problem. I think we are misunderstood at some points.

When i first use the tablet, the system info say it is RCT6303W87M7. I was too subjective not backing up the current firmware at this moment.

I then download your patched boot.img and flash successful. However, I do not get root, touch screen does not work.

In attempt of fixing, i flash official RCT6303W87M7 firmware and it is bricked.

I try official signed RCT6603W47M7 firmware. It's back to live but the system info changed to RCT6603W47M7

From this moment, i can no longer flash unsigned img.

It take me awhile to figure it out that it was the lk-sign.bin that prevents me to do anything with unsined img.

Sorry if this messed up process make you confuse.

Till now, we can be sure that, at the very first time, unsigned firmware can flash without error and the running firmware was not signed.

The only chance might be finding the unsigned firmware like the first time.

However I tried few unsigned RCT6303W87M7 firmwares recently but still no luck.

It seem the preloader is not correct coz it cant boot in to RCA splash screen 's logo.

Attached image is my current system info.
[Android General] Viva La Android R.I.P.:
Yes, you actually mentioned your build number earlier on and I had forgotten all about it. My fault there. You've actually been very thorough in articulating your issue. I think you're correct. We need to find an unsigned firmware package that you can install via SPFT. If you can do that, SPFT should no longer give an error when you attempt to flash an unsigned boot or system image. I'm going to search some firmware repos to see what I can find.
[Android General] rachel up:
I have the same tablet and when I cut it on it shows android recovery etc. Idk how to fix it
[Android General] Spiral X:
Thanks for your efforts so far...

I really appreciate the work you and the OP have put into this. My son's Viking Pro (RCT6303W87M-ANDROID6.0-V05-V1.16.20-E04) has somehow managed to get corrupt system files. Now it hangs on boot, and factory reset doesn't work, because of said corrupt files. I'd like to flash the firmware but Windows refused to acknowledge the usb connection, even though it used to before this problem. I've tried all of OP's methods on two different Win 10 machines - installing usb drivers and the rest - but nothing has worked so far. Maybe RCA's latest revisions have blocked all previous methods? Any suggestion you could give to help me out would be greatly appreciated... some way to restore the system files by sd card update.zip, possibly?
[Android General] Viva La Android R.I.P.:
I apologize sincerely for my lengthy absence from the Marshmallow variants of the RCA Viking Pro. Work has been a bit crazy due to the continuing Covid-19 pandemic.

On your particular issue, and to the best of my knowledge, you should be able to use the SP Flash Tool to restore your corrupted firmware. Your problem may be due to Windows 10's default implementation of not allowing installation of unsigned vCom drivers. To fix this issue, you must open a command prompt on your PC and toggle the TEST SIGNING settings. Of course, I'm only assuming here, but your issue sounds a lot like a vCom driver issue, due to the lack of communication between your tablet and PC via USB connection. There are numerous tutorials on the internet regarding this problem. I encountered this same issue on a Lenovo Tab 3 tablet a while back. Google these terms and you'll find info and help with this problem:

WINDOWS 10 64-BIT TEST SIGNING UNSIGNED DRIVERS

In fact, here is a tutorial on this exact issue:

https://www-howtogeek-com.cdn.amppr...8.1-so-that-you-can-install-unsigned-drivers/

Because vCOM drivers for the SP Flash Tool are unsigned, this could very well be your problem.
[Android General] Spiral X:
Thanks for responding!

I've been at this for the better part of a week, so I'm willing to try anything that may help get it sorted out. I'll try this, and let you know how it goes... thanks again!
[Android General] Viva La Android R.I.P.:
No problem. I ran into this same rock on a Lenovo for months. Once I got TEST SIGNING enabled and got the vCOM drivers properly installed, my device had instant communication with my PC via USB connection/SP Flash Tool. Let me know. On my Viking Pro, I've had no problem with using the SP Flash Tool. I have a newer Viking Pro like yours.
[Android General] Spiral X:
No such luck.

Turns out the drivers were already signed, but I uninstalled them and they re-installed easily with Test Signing enabled. Still no luck. funny thing is, all my other android devices are recognized when I connect them in regular, recovery, or fastboot modes - even if only to say "driver not found." This? not even a blip in Device Manager...
[Android General] NepoRood:
Use Linux

My advice to anyone having trouble connecting your tablets, use a Linux distro (ie: Linux Mint, if you've never used Linux before, Ubuntu has a lot of support too). You don't have to install it, just use it from the USB. IF you're lucky enough to have a USB 3.x interface, whichever distro you choose will run fairly well from it. USB 2 will be a bit slow, but will still work.

There will be a few hoops to jump through, like setting up udev rules and such, but after that, everything just works. I was even able to use ADB on my Maven Pro, whereas, it just doesn't work with Windows...
[Android General] Casper Young:
Access via USB

On Windows 10 it is possible to access the device via USB. This was described by the creator of this post SmartmanVartan and can be found in his tutorial. There about a 5 second window when the device is turned on and plugged into the PC. Device manager is onscreen and the device will show up in the lisstings.
[Android General] Dhauni:
Not able to root old android 4.0.4

so in short fastboot oem unlock does not work for me, need help please. some more details following.

I have an intel old non production version of tab, it has android 4.0.4, no play store etc. I want to root it. tried ADB but not able to unlock the bootloader. below is what all i tried.

1. put in twrp app, but when try to flash it says device not rooted

2. tried rooting the bootloader, using ADB, but when in fastboot mode, it recognize the device (after i some how found drivers for this)

3. but when i run command fastboot oem unlock , it gives error Fail (unkown OEM command)

C:\Users\DJ>fastboot oem unlock

FAILED (remote: unknown OEM command)

finished. total time: 0.363s

C:\Users\DJ>fastboot flashing unlock

Result: Fail (unknown command)

4. tried KingoRoot that too did not root it, it failed

5. I have root access on adb prompt when i do , adb shell i directly get # prompt

6. Below some more info related to architecture

root@android:/sdcard/Download # getprop | grep abi

[ro.product.cpu.abi2]: [armeabi-v7a]

[ro.product.cpu.abi]: [x86]

root@android:/sdcard/Download #

7. Issue is since this is non production version, i don't find any post as such, and i desperately want to do it to learn and try. any help is much much appreciated
[Android General] nexxusty:
wat

Is this a vain attempt at speaking English?
[Android General] Casper Young:
That's very non specific. Can you tell us what model you have please?

If you're using ADB some commands can be a little different for a variety of reasons. Also, run fastboot or command prompt in administrator mode which may get you where you want to. There are a variety of root apps and a variety of ways to install them. I suggest downloading an app to the device and you may need to runn it more than once. Applying an update from sd card is a recovery option.
[Android General] SPARTAN_TECH:
links work but says file in users trash can, can you relink the files or share me the file to my drive
[Android General] tekerjerbs:
would appreciate any help with recovering this RCA tablet or locating its stock rom
[Android General] philipnetwrx:
Is this still available by download link? It is showing unavailable in your trash. RCT6303W87DK-android5.0-v32-1.9.1-20150409.zip

Please let me know. It seems you are the only source unless you can recommend another.

Thanks in advance.
[Android General] NepoRood:
[MENTION=4666511]smartmanvartan[/MENTION]

Scroll up, if you're still around, lol
[Android General] smartmanvartan:
I still live!!!! lol let me check
[Android General] smartmanvartan:
Fixed the link.. sorry really thought nobody still had this thing...
[Android General] philipnetwrx:
I'm just starting my attempt to reinstall but I get a violation error from Drive when I try to download https://drive.google.com/file/d/0Bz4bOoJ_E5Xzb0g3ZnlEcHE0bEE/view?usp=sharing
[Android General] mrfixit2001:
@Viva La Android

I tried to send you a PM but it wouldn't allow me. So sorry for the public ping.

I'm really glad to see you're still an active member on the forums :) I saw a few posts from you about a year ago regarding the RCT6303W87M7 Viking Pro and i wanted to reach out, I hope you don't mind!

I have downloaded both of your links from this post:

[ROOT][FIRMWARE][BOOTLOADER][RECOVERY] RCA Viking Pro (RCT6303W87DK) One Stop Shop!

I am not responsible for anything that happens in your life. Including what happens as result of following steps in this thread. Hello all. After a long journey here, we figured a new thread would be in order for new comers not to have to read...

xdaforums.com

I haven't had any luck rooting this thing (tried many different apps), and any attempt at pushing images from the SP Flash tool result in "ERROR: S_BROM_DOWNLOAD_DA_FAIL (2004)".

I've tried a few different versions of SP flash, including the latest. I've tried selecting all the different download agents. I've tried selecting just the bootimg that you provided (magisk_patched) to be downloaded. And even the stock firmware itself won't push. So I must be missing an important step. I've tried holding down all the buttons while it's booting, as well as pressing them over and over again.

I searched your posts but couldn't find that turotial you were talking about writing. In any event, I really appreciate your time and hope you have some suggestions. Thanks again!
[Android General] rlowens:
I just picked one of these up used for $20, mostly just to use as a smart clock. But from reading this thread it looks like I could probably root it but there isn't any newer ROM than Android 5.0 Lollipop, right?
[Android General] MishterKirby:
No, there isn't. I believe there's a model that has Marshmallow, but I think they're incompatible.
[Android General] Imaunicorn666:
Does anyone has the 1.10.1 firmware ? Im in a bootloop and i cant unbrick it.... Its a RCA rct6303w87dk i rooted with kingroot and uninstalled both king root and supersu and installed magisk to install it without anything else (not unlocking bootloader,patched directly the magisk to the boot.img and it got installation failled! But patched everything and without bothering telling myself it didn't really did it i pressed reboot now and it bootloop on me maybe twrp and similar device custom rom?) Im a not too noobie since i root my friends phones but this got me f***ed cause it didn't let me do no backup .... Here is the specs i have : RCA rct6303w87dk 1.10.1 v17 android 5.x

I usually referred here in the past and i couldn't find any stock rom neither custom rom ....
[Android General] Casper Young:
You should go to the beginning of this post to find "a" ROM that may be usable for your device. However you seem to trying to flash in a Root as if you're trying to flash it into a Samsung. RCA devices are MTK devices and are flashed differently, usually by a scatter file system if I remember correctly. Be aware that if you flash the wrong firmware or ROOT into an RCA device. It will brick. I believe Smartmanvartan has created a way to unbrick them, again you should find this at the beginning of the post.
[Android General] Viva La Android R.I.P.:
@mrfixit2001, greetings. Thanks for reaching out. Sorry about the PM thing. I need to adjust my settings under my account profile to allow PMs. I regret to say that I no longer own this device. I will go through my files and archives when I get a little free time and see if I can help you get root. I'm on the road working but should be home by next week, hopefully by Wednesday.

Update: I've searched through my available device files and archives and I no longer have anything relevant to this device. In a nutshell, remembering back, root is achieved by patching a stock boot image with Magisk. Next, extract a stock firmware package for this tablet. Replace the stock boot image with the patched image and then repack the firmware into a .zip archive. Next, SP Flash Tool is used to flash the patched boot image to the /boot partition. I recall that some type of modification needed to be performed to the script in the firmware package that runs checksums on the partition images (Checksum.ini). The entire process essentially tricks the bootloader into allowing an unsigned and modified image to be installed. Many BLU devices are rooted and flashed with fully locked bootloaders using the same concept.

For that, the OP may be able to advise you on the process. Sorry I couldn't be more help. And sorry, @Casper Young, that my reply ended up on your post. My bad.
[Android General] pcorti:
Hi Viva La Android!

I'm find this firmware RCA Viking Pro (RCT6303W87M7). and that link doesn't work

you have it? could you help me?

Tanks!!!
[Android General] Casper Young:
The other one is RCT6303W87M7, https://drive.google.com/file/d/1zB1waSYM0iwdobu0jdxP1WJD6r1F8-XI/view?usp=sharing.

Here's the MTK Drivers, https://drive.google.com/file/d/0Bz...=sharing&resourcekey=0-aW4AO97a3xHscDbIn1g38g

This should be the Scatter files https://drive.google.com/file/d/0Bz...=sharing&resourcekey=0-HIBUunHajd0GlMMEWVSWHw
[Android General] pcorti:
Thanks Casper! I'm going to try them and then I'll tell you
[Android General] Viva La Android R.I.P.:
RCA_RCT6303W87M7_MT8127_20180302_6.0

MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.

www.mediafire.com
[Android General] Viva La Android R.I.P.:
Now that the bootloader can be unlocked on this model, have you already done that? Or are you just needing to do a firmware restoration? MTK Client can unlock the bootloader, flash partitions, dump firmware, etc. It's a free multipurpose utility for MediaTek based devices. You can get it here, along with instructions for setup -- free of charge of course.

Unlock Bootloader on MediaTek Devices using MTKClient

In this comprehensive tutorial, we will show you detailed steps to unlock the bootloader on your MediaTek device using MTKClient.

www.droidwin.com
[Android General] Viva La Android R.I.P.:
Because I haven't had time to go back and read the past posts and development history of this RCA tablet, I wanted to inquire if there are any members who have exploited the bootloader on the RCT6303W87M7 using MTK Client. The tool can exploit bootloaders on the majority of MediaTek platforms, regardless of the Android version, firmware build or branded carrier. Those having difficulties rooting the Android Marshmallow version of this tablet would undoubtedly benefit from MTK Client if they have not already done so. The tool can also be used to flash partitions (such as a Magisk patched boot image), dump partitions (without root), run diagnostics, view the partition index, and a number of other functions. I posted a link above for MTK Client and setup instructions.
[Android General] Casper Young:
I've been able to root the device. But after that no ROM was available to update the device with.
[Android General] Viva La Android R.I.P.:
Ok so you updated while running which firmware build version?
[Android General] Casper Young:
The build number for my device is RCT6303w87DK.. I was able to Root it using KingoRoot. I have not been able to upgrade it due to a lack of any usable ROMs for the device.
[Android General] banka23:
Hi,

I know it's a bit too late, but I have to update my Android on RCA Viking 10 Pro RCT6303W87DK.

I did it before Android 5.0 V32-V1.9.1 (Kernel Version 3.10.54), but this is not enough for my tablet to work properly.

It will really be a lot if someone helps me get every file needed for this.

I want this root to the last Viking 10 Pro RCT6303W87DK and the Android version.

P.S.

Explanation of the order which I supposed to fallow, also will be good.

I know that I am asking for something that is not recent, but some circumstances made me only have a chance to do it.

Thanks in advance for any help !!!!
[Android General] RCANOOBMAN:
My tablet is RCA Viking 10 Pro RCT6303W87DK and I think I mess up with the firmaware .

I have't flash before it was my first time and the tablet in dead now.It won't turn on after my attempt to flash firmware at SP_Flash tool.

I flashed or I think I did ,this firmware here RCA_RCT6303W87M7_MT8127_20180302_6.0

but my tablet's firmware was RCT6303W87DK.

It was flashed until the end it was showed the green tick check at the SP_Flash_Tool but after that nothing the tablet didn't open again. I have to mention that when I was try to connect it at SP_Flash_ Tool it is popup and error said to me :Format + Download in case to connect.. Now when I connect back to my pc .I got the sound that is connected but it isn't detect at SP_Flash_Tool for further steps...

What should I do?

I tried reset button ,power buttom 30 sec and more,I removed the battery,power buttom volume up. Nothing of the works to me.
[Android General] NepoRood:
All may not be lost, @RCANOOBMAN, I bricked my Viking several times, even thought I had completely killed it to the point that I ordered a new one. However, I never picked the new one up and instead got my money back. I managed to fix it, I've included the "how" below, but first it would be best to figure out which firmware you actually need.

My Steps

:

Fire up the flash tool,

load the proper firmware

, uncheck everything except the preloader, and then click the download button. (I know the OP states to "uncheck" the preloader and not to flash it with the firmware, that doesn't apply to this situation)

Plug in your cable(s) to the device and connect it to the PC.

Now for the "tricky" part: you have to

press and

hold

ALL the buttons: Power, Volume up, Volume down and the Reset button on the back.

At this point, the preloader should flash, keep holding down all the buttons until it finishes (it doesn't take long). If you let go, you'll have to start the process all over again. After it finishes, the charging animation should show up on the screen.

Here are some reference links:

OG viking thread

This thread

Hope this helps and best of luck to you,

Nepo
[Android General] RCANOOBMAN:
It doesn't work to me ...

I keep pressing all buttons like you said when I am pressing the reset button the tablet it is disconnecting.

Can you send me your firmware that you put to unbrick and your drivers .My computer may not have the proper drivers too.

You can Upload all at mediafire as a file... Do you have skype or something that I can chat with you?
[Android General] NepoRood:
First of all, I don't Skype, lol

I see you using v9 firmware, I had the v12. Are you

100%

sure that you are using the right firmware?

It's been many years since I messed around with these cheap devices. I noticed your post and thought I would share what little I remember from 20

16
[Android General] Labad Shabawar 142:
Hello all , forgive me in advance if I'm posting in the wrong place . I just wanted to ask if anybody has a copy of the files twrp and lineageOS needed to root the RCA Tablet Viking Pro 2 model number RCT6a03W12 ? It's running android oreo , I've searched all over this forum and all over the web for the files , but no luck . And there seems to be absolutely nothing on XDA about this particular model tablet whatsoever . I tried rooting it with kingo root and corrupted the firmware , now the tablet has very poor performance . Such a bad experience , I'm not in a position to just trash it and replace with a better one so I'm hoping someone has the files I need to salvage this one . I also tried rom manager , iroot but none helped . Any advice or help would be greatly appreciated . Thanks in advance
[Android General] Casper Young:
Hi Desmond, Sorry that I'm on here sporadically lately. If you still need it I have two choices to help you. One is I would have to copy the firmware from my device but I've been busy lately so gimmie a couple days if thats nessesary. Or I'll find it for you shortly. Please be advised that there are two versions of the software and you can only use one. The other one as far as I know will brick your device. There is a tutorial around here somewhere by "SmartmanVartan" who did some extensive work on the RCA Viking Pro a long time ago. https://xdaforums.com/t/root-firmwa...iking-pro-rct6303w87dk-one-stop-shop.3325158/. Here's the only listing of the firmware I have, http://gofirmware.com/download/rca-10-viking-pro-rct6303w87dk
[Android General] tho2305:
Hi Viva La Android,

do you still have the patched bootloader for the RCT6303W87M7 as i do not want to use mtkclient as i do not like it at all but i did use SP flash tools, and i just want to unlock the bootloader to root my device

thanks

Edit: if anyone like @NepoRood or anyone else can help me it would be great! thanks again
[Android General] Casper Young:
RCT6513W87-STOCK-signed.zip

drive.google.com

I have this. I installed KingRoot and it worked easily
[Android General] Casper Young:
[ROOT][FIRMWARE][BOOTLOADER][RECOVERY] RCA Viking Pro (RCT6303W87DK) One Stop Shop!

I am not responsible for anything that happens in your life. Including what happens as result of following steps in this thread. Hello all. After a long journey here, we figured a new thread would be in order for new comers not to have to read...

xdaforums.com
[Android General] tho2305:
hey man, the link does not work as I already looked at that (the second one)
[Android General] tho2305:
This did not work for my tablet as it is an RCT6303W87M7 and you sent me For RCT6303W87 and it "broke" the os being android because i had encryption AND IM NOT GOING to reset it as it is pain
[Android General] tho2305:
Also for KingRoot, it did not work
[Android General] Casper Young:
Try this.https://androidmtk.com/download-rca-stock-rom-for-all-models
[Android General] tho2305:
hey, no need as i want to root the device. i already got the stock boot rom all i want is to pen the bootloader and root it. maybe also install a custom os like lineage os
[Android General] NepoRood:
A custom ROM is highly unlikely for these types of low budget devices. I'm not sure what version of Android your device shipped with, but if it came with Android 9 or higher, you may be able to use a GSI.

For the bootloader, have you tried using this

Best of Luck!

Nepo
[Android General] tho2305:
Hey there,

For android if I remember it's android 8 and idk what is GSI

Also for bootloader, I'll try that like tmrw. Thx

P.S. I will add an edit to confirm my android version, and if I could install like Linux, that would be cool.
[Android General] NepoRood:
:sick: 8... That would make it a "No" for using a

GSI

(

G

eneric

S

ystem

I

mage, More Info)

Perhaps you can put some kind of Linux dist on it or maybe find another purpose for it.

I've been thinking about trying to make one of my older devices into an Android Head Unit for use in my truck :geek:
[Android General] tho2305:
Update on the android version. Its 6.0
[Android General] tho2305:
Also, the app you suggested does not work to unlock as it does not detect the tablet