DISCONTINUED [STOCK ROM/TWRP/ROOT/OC-UV] RCA 7' Voyager (RCT6773W22) MT8127

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TripFX

Senior Member
Jun 19, 2010
477
324
Standing in the middle of nowhere
DISCONTINUED - Left for research and archive purposes.



After much hardwork @codelover and I are pleased to release both stock rom as well as TWRP 2.8.6.0
for the 2 known variants v31 and v38. Please make sure you download and flash for your specific variant. Check faq if you do not know which variant you have.

REQUIRED FOR BOTH VARIANTS:
Windows XP/Vista/7/8/8.1/10TP 32bit or 64bit
SPFT (Windows Version) “linux version coming soon”
Correct Scatter File
Preloader Drivers (if you do not know how to install manually go here)
ADB
A Brain

Usage:
For flashing either pre-rooted Rom and/or TWRP you will need spft+scatter file. It is imperative that you make sure that if you got a v31 you only uses v31 files not v38. Same for the v38 users only use v38 files. You have been warned.

Flashing Rom:
Make sure
Run the file flash_tool.exe
Click on scatter-loading and select your MT8127_Android_scatter_RCA_Vx.txt file
Make sure all listed files are checked and if any isn't double click on it and select the appropriate file
Leave settings as Download Only “if working tab Format All + Download "if wont boot' then hit the Download button
Make sure your tablet is completely switched off then connect it to your PC and the flashing process will commence immediately.
Once it's done, you'll see the tick sign below and that's all. Reboot your device and setup your device afresh.
BjPipEM.png


Flashing TWRP:
Same as above except only check mark recovery and select “recovery_twrp2860_vXX.img” and nothing else then proceed.

How to ROOT:
*With stock recovery: Kingo

*With TWRP: SuperSu

DOWNLOADS:

(V31.0 USERS ONLY)
Pre-Rooted Stock ROM (scatter file included in zip and attached below)
TWRP 2.8.6.0 (scatter file included in zip and attached below)
EDIT: TOUCH FOR v31 TWRP IS MISALIGNED FIX IN PROGRESS. LINK REMOVED UNTIL THEN


(V38-V1.8.0 USERS ONLY)
Pre-Rooted Stock ROM (scatter file included in zip and attached below) (Currently being fixed sorry for the issues)
TWRP 2.8.6.0 (scatter file included in zip and attached below) (Currently being fixed sorry for the issues)


NOTICE:
Please keep thread clean and DO NOT ask things others have asked already as you will be ignored. If you do have a honest question and have a working knowledge of android. I would be glad to assist you the best I can. If you are noob and messed something up DO NOT ask for help. Meaning basics of knowing adb,logcat, installing drivers, and so forth. Sorry if you are a noob but please try to understand that things we may ask of your will require this and becomes too much of a slow down if we have to guide you thur everything.

CREDITS:
http://twrp.me/@Dees_Troy & his team mates, for TWRP Recovery
@codelover - For being an awesome programmer, dev and person!
@TripFX - For being an awesome Tester, v38 rom dump and Dev Machine Hoster
@synius - For v31 rom dump and tester
@nathanski - Tester
@acejay3200 – Being a nice lab rat with knowing i may not be able to make a recovery for you or even brick your working device and not being rude..

Others I may have missed
 

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Last edited:

TripFX

Senior Member
Jun 19, 2010
477
324
Standing in the middle of nowhere
Faq:

Question: How do I know which variant I have?
Ansere:
Method #1
From a booted android, goto Settings > About > Build number
You should see something like this.
RCT6773W22-ANDROID4.4.2-3101-V38-V1.8.0

Method #2 (Better & more accurate)
For this your device must be rooted & already have USB Debugging Mode enabled.
Make sure adb.exe has been installed on your system (computer).
Execute the following adb command:

Code:
                adb shell
	        su
                cat /proc/cmdline
MVeXrPS.png

then search for ‘lcm’ text in the output:
If lcm=cpt_clap070wp03xg_lvds < you need to use v31 files
If lcm=1-lxjc070whm270_18a_rgb < you need to use v38 files

Question: What if I dont remember which variant I have and can’t access adb?
Ansere: If this is the case we will need to use SP Flash Tool to help identify your variant.
Open SF Flash Tool, load V38 scatter and switch to ‘Read Back’ tab. Clear all then click Add,
Click the new item & change the output file name from ROM_0 to ROM.txt,
edit the readback address as below:
Start Address: 0x9000000 / Length: 0x1000
S1qYlvT.png

Then press “Read back” button, now connect the tab while powered off.
When it’s done, open the file with wordpad and check if you have “ANDROID” at the beginning of the file, if your answer is yes then you have V38, otherwise use V31.
 
Last edited:

acejay3200

Senior Member
Aug 17, 2014
64
12
45
no touch in twrp volume keys do nothing power button shuts off tablet boot into android tablet works fine i am trying to make a backup so i dont have to flash everything again
 
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acejay3200

Senior Member
Aug 17, 2014
64
12
45
i flashed twrp with its own scatter had no touch then with the 4.3 scatter that fixed my tablet now touch works but the buttons dont lineup
 
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nathanski

Senior Member
Jan 9, 2015
109
21
i flashed twrp with its own scatter had no touch then with the 4.3 scatter that fixed my tablet now touch works but the buttons dont lineup
A correction to V31 in on its way
V38 has good reply on touch working well, small snag regarding to internal storage reported,,,
 
Last edited:

leetree2001

Senior Member
Apr 8, 2013
67
19
houston
Well I got it downloaded, and it worked great for me, touch Worked great for me. I did a ful
I backup and all buttons seem to respond to touch. I used twrp easy magic's unpack, repack to install it, thanks you guys, and girl's for you're hard work.
 

leetree2001

Senior Member
Apr 8, 2013
67
19
houston
Great to hear good results, what file are you reporting success with, if I may ask,,,
I stay on my tablet like most of my time when I'm not working or ect,ect when I stop using it as heavily I am going to install twrp I guess, just haven't made time as the tablet is basically my main device

Twrp 2.8.6 v38,the only problem I found is internal sdcard not showing up in file manager. But external sdcard does,
 
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Faq:

Question: How do I know which variant I have?
Method #2 (Better & more accurate)
For this your device must be rooted & already have USB Debugging Mode enabled.
Make sure adb.exe has been installed on your system (computer).
Execute the following adb command:

Code:
                adb shell
	        su
                cat /proc/cmdline
MVeXrPS.png

then search for ‘lcm’ text in the output:
If lcm=cpt_clap070wp03xg_lvds < you need to use v31 files
If lcm=1-lxjc070whm270_18a_rgb < you need to use v38 files

Note: Watch your tablet as you're doing this. You may have to grant su permissions on the tablet after executing the "su" command in adb.
 
Last edited:

nathanski

Senior Member
Jan 9, 2015
109
21
Thx for the help it won't boot into recovery it comes on I just can't get into recovery
I can't say as to why but you do need the self education one can learn about how to use spflash tool,, seeing as that's the way that I know that's the first info I could offer ,,, you should get your version information first, then download your ROM because the scatter file that had reports of best results are in the full firmware, and you then need to know that the reset button will bring up a driver install but it happens fast to catch this you need the device manager in windows open, plug the rct in then press reset with a tothpick or other small pin ect,, the device shows up with a sound chimes on windows, right click the new device in the USB group and install using the hosted driver,,, now to the spflash tool its self load the scatter in the full ROM related to the vershion you have and then only check recovery,,, and find the twrp.IMG in you downloads and use only the download option in the spflashtools,, and click download then Right after hit reset on the back of the tablet,,, it can be done ,,,, even for the new people wanting to learn,,, regarding the twrp,installer.exe I linked to, I have no knowledge it was only reported to be a full success by another user before you so I wanted to offer a fast way for others to find it ,, so I linked to the .exe,,, and lastly ON MY TABLET I HAVE TO BE ON A CHARGER TO LAUNCH RECOVERY AT BOOT USING VOLUME KEY,..and you can download a root reboot apk that will boot from inside android directly into recovery,, maybe I helped,,,, p.s. another great thing the full ROM offers is the original OEM recovery.. Pleas do try to learn. As always i do wish every one the best

---------- Post added at 02:45 AM ---------- Previous post was at 02:38 AM ----------

best regards to you @TigerG8
 
Last edited:
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  • 9
    DISCONTINUED - Left for research and archive purposes.



    After much hardwork @codelover and I are pleased to release both stock rom as well as TWRP 2.8.6.0
    for the 2 known variants v31 and v38. Please make sure you download and flash for your specific variant. Check faq if you do not know which variant you have.

    REQUIRED FOR BOTH VARIANTS:
    Windows XP/Vista/7/8/8.1/10TP 32bit or 64bit
    SPFT (Windows Version) “linux version coming soon”
    Correct Scatter File
    Preloader Drivers (if you do not know how to install manually go here)
    ADB
    A Brain

    Usage:
    For flashing either pre-rooted Rom and/or TWRP you will need spft+scatter file. It is imperative that you make sure that if you got a v31 you only uses v31 files not v38. Same for the v38 users only use v38 files. You have been warned.

    Flashing Rom:
    Make sure
    Run the file flash_tool.exe
    Click on scatter-loading and select your MT8127_Android_scatter_RCA_Vx.txt file
    Make sure all listed files are checked and if any isn't double click on it and select the appropriate file
    Leave settings as Download Only “if working tab Format All + Download "if wont boot' then hit the Download button
    Make sure your tablet is completely switched off then connect it to your PC and the flashing process will commence immediately.
    Once it's done, you'll see the tick sign below and that's all. Reboot your device and setup your device afresh.
    BjPipEM.png


    Flashing TWRP:
    Same as above except only check mark recovery and select “recovery_twrp2860_vXX.img” and nothing else then proceed.

    How to ROOT:
    *With stock recovery: Kingo

    *With TWRP: SuperSu

    DOWNLOADS:

    (V31.0 USERS ONLY)
    Pre-Rooted Stock ROM (scatter file included in zip and attached below)
    TWRP 2.8.6.0 (scatter file included in zip and attached below)
    EDIT: TOUCH FOR v31 TWRP IS MISALIGNED FIX IN PROGRESS. LINK REMOVED UNTIL THEN


    (V38-V1.8.0 USERS ONLY)
    Pre-Rooted Stock ROM (scatter file included in zip and attached below) (Currently being fixed sorry for the issues)
    TWRP 2.8.6.0 (scatter file included in zip and attached below) (Currently being fixed sorry for the issues)


    NOTICE:
    Please keep thread clean and DO NOT ask things others have asked already as you will be ignored. If you do have a honest question and have a working knowledge of android. I would be glad to assist you the best I can. If you are noob and messed something up DO NOT ask for help. Meaning basics of knowing adb,logcat, installing drivers, and so forth. Sorry if you are a noob but please try to understand that things we may ask of your will require this and becomes too much of a slow down if we have to guide you thur everything.

    CREDITS:
    http://twrp.me/@Dees_Troy & his team mates, for TWRP Recovery
    @codelover - For being an awesome programmer, dev and person!
    @TripFX - For being an awesome Tester, v38 rom dump and Dev Machine Hoster
    @synius - For v31 rom dump and tester
    @nathanski - Tester
    @acejay3200 – Being a nice lab rat with knowing i may not be able to make a recovery for you or even brick your working device and not being rude..

    Others I may have missed
    6
    Guys, thanks for sharing the ROM dump, we are still analyzing the files, until then V38 users please don't use/flash any of the files.

    Meanwhile, can someone help me to test new twrp recovery for V31?
    Hopefully the touch works, otherwise someone will have run Magic TWRP to get correct configuration for me. (We will provide info later if needed)

    Thanks
    4
    Faq:

    Question: How do I know which variant I have?
    Ansere:
    Method #1
    From a booted android, goto Settings > About > Build number
    You should see something like this.
    RCT6773W22-ANDROID4.4.2-3101-V38-V1.8.0

    Method #2 (Better & more accurate)
    For this your device must be rooted & already have USB Debugging Mode enabled.
    Make sure adb.exe has been installed on your system (computer).
    Execute the following adb command:

    Code:
                    adb shell
    	        su
                    cat /proc/cmdline
    MVeXrPS.png

    then search for ‘lcm’ text in the output:
    If lcm=cpt_clap070wp03xg_lvds < you need to use v31 files
    If lcm=1-lxjc070whm270_18a_rgb < you need to use v38 files

    Question: What if I dont remember which variant I have and can’t access adb?
    Ansere: If this is the case we will need to use SP Flash Tool to help identify your variant.
    Open SF Flash Tool, load V38 scatter and switch to ‘Read Back’ tab. Clear all then click Add,
    Click the new item & change the output file name from ROM_0 to ROM.txt,
    edit the readback address as below:
    Start Address: 0x9000000 / Length: 0x1000
    S1qYlvT.png

    Then press “Read back” button, now connect the tab while powered off.
    When it’s done, open the file with wordpad and check if you have “ANDROID” at the beginning of the file, if your answer is yes then you have V38, otherwise use V31.
    3
    I've been hard at work,
    the initial v31 release is incorrectly scattered
    Be patient with me because I'm testing it to fix my v31
    Yes it boots after flash but the tablet itself. Uses 2 system 2 cache and 2 userdata one is a regular image that gets remounted on the second system partition as ubifs this second partition gets flashed with the original system image every boot,

    because the scatter tells the device hey the ubifs is already mounted it boots once after shutdown it tries to copy the original system which is empty, so it writes the system empty and fails to boot a second time

    The nvram error is the WiFi mac address it won't cause issues but it's basically scanning itself not knowing it's itself as it's non identifiable it's fixed by 2 solutions one from earlier in this forum or the other forum,or flashing the devices original nvram.img

    I haven't givin up on development
    So bear with me
    Sent from my R800a using XDA Free mobile app
    3
    v38 is still being worked on atm.