yashsingh1/xdaforums huggingface dataset:
[General Questions and Answers] synius:
Try flashing again using your version of tablet and report back

https://www.mediafire.com/folder/6xgbx23b77qxv/Scatters
[General Questions and Answers] TigerG8:
so far, it's still at the white screen. Synius, i'll try what you suggested now, using your scatter.

EDIT: actually, my battery JUST died. so i'm going to let it charge for a bit, then i'll get back to you.

EDIT2: here it goes, moment of truth. im charged 100%, and attempting to SFPT again using Synius' scatter file.

what i may have done wrong before, was that i chose to format+download, but the 'usrdata' and 'cache' fields were both checked, with no files to flash for usrdata or cache. could that have been the issue here? does anyone have files i could use for usrdata and cache? V38 variant.
[General Questions and Answers] nathanski:
Step 1 you must reinstall the whole ROM full format and download then go into OEM recovery and factory reset, when thats done ,,,step two update su if you would like then power it off and run spflashtool once more changing the path of the recovery towards the twrp.IMG making shure it is the only option ticked and you only have it on the download mode,,, ,,,,,,,

The cache and user data files get set on the OEM recovery factory rest,,
[General Questions and Answers] synius:
Those particular scatters partitions everything properly cache and user data get partitioned empty but partitioned,

Factory reset repopulates empty partitions just like it was a stock boot

Those tics need to be checked without a file. After flash ,but unplugged ,unit off,hold pwr button and vol + keep holding this should put u in stock recovery

From here you need to factory reset. Then reboot and see what happens

Once it boots follow the rest of natanski instructions for twrp recovery
[General Questions and Answers] synius:
As for those trying to root and getting no success and have tried everything, I tried a lot of things the only apk that worked was kingroot it is a Chinese app it installs kinguser while this is not supersu and it's a pain to change it does what it's suppose to

https://www.mediafire.com/folder/rwdx9bf5205bj/Rooter

Using es file explorer you should be able to download using tablet, extract apk in es file explorer, in settings security check unknown sources install kingroot and root

I've tried kingoroot, Towelroot, Super one click, Iroot

And a few others.

If you prefer app store, download aptoide, and search kingroot

Unknown sources needs to be checked
[General Questions and Answers] nathanski:
my favorit root install for a fresh system is spflashtool download only cwm, you get recovery and it roots the device on exiting the recovery,,, http://www.mediafire.com/download/93tz12trlldrzka/SPFT+RCA+Test.zip,,, but for new users i could see using kingroot and twrp, Installer, exe together being a good easy less risky option,,, mainly because spftool reqires more know how i would guess,,, never the less if you have a bricked device with no pre installed custom recovery+backup,,, one has to learn spflashtool to have reinstall the full rom from [MENTION=4893922]codelover[/MENTION] & [MENTION=2670928]TripFX[/MENTION]

---------- Post added at 05:11 PM ---------- Previous post was at 05:04 PM ----------

http://xdaforums.com/devdb/project/dl/?id=10082 here is the twrp. installer. exe and links to our twrp and everything on [MENTION=2670928]TripFX[/MENTION],s new posting page 1,,,http://xdaforums.com/general/general/stock-rom-twrp-root-oc-uv-rca-7-voyager-t3087075
[General Questions and Answers] TigerG8:
i can't get into my stock recovery, either. it's stuck at the white RCA screen. holding pwr button and vol + only turns the tablet back off, and if i continue holding, it turns back on, then off again, then on.
[General Questions and Answers] nathanski:
and you did a new format, download of the full rom with it never booting? i have tryed giving best directions i could,,, will you pleas reply with a self log of the things you do step for step, so we could better guide you,,
[General Questions and Answers] TigerG8:
*v38 variant, verified by adb shell, su, cat /proc/cmdline

lcm=1-lxjc070whm270_18a_rgb

*Tab is charging, unlplugging, now completely off.

*restarted computer

*reinstalled drivers

*restarted computer

*ran SPFT as administrator.

download tab

chose scatter-loading file from synius

all fields are populated with their appropriate file locations

format all + download

clicked download

*connected tablet via usb

spft reads 'format 100%'

spft reads 'download bootloader 100%'

spft reads 'download flash 100%'

big green checkmark, download ok

*diconnected tablet from usb

*hold pwr and vol +

tablet powers on, off, on, off.
[General Questions and Answers] synius:
What is the result of trying to let it boot...?

After the first shut off and turn back on you could let go

If it boots up to setup you can factory reset in settings

Sent from my RCT6773W22
[General Questions and Answers] TripFX:
STOP BEFORE DOING ANYTHING ELSE WITH V38 TAB!!!! we just found out that when codelover sent me the preloader the md5 did not match.

[MENTION=5993466]acejay3200[/MENTION] can you tell me since you got tab working with v31 has touch ever worked? If not then you actually have a v38 tab. working on fix still but shouldnt be much longer
[General Questions and Answers] acejay3200:
Yes touch works like normal no problems
[General Questions and Answers] TripFX:
ok so just the current twrp doesnt work is that correct?
[General Questions and Answers] acejay3200:
Twrp does not work for me
[General Questions and Answers] TripFX:
ok thanks thats all i need from you atm.
[General Questions and Answers] synius:
Twrp is misaligned

Tripfx I have a broken screen v38 stock I could do a read back for you it up to usrdata

Sent from my RCT6773W22
[General Questions and Answers] TigerG8:
same thing. it hangs at the white RCA screen until the battery dies. i don't know where to go from here.

when i try to use a scatter file from TripFX, that includes the usrdata and cache fields - and i check both fields, i get BROM ERROR: S_FTHND_FILE_IS_NOT_LOADED_YET (5007) regardless of whether i choose 'download only' or 'format all + download.' again, both of those fields have no file associated with them. i assume it won't boot into the OS because the usrdata/cache have been formatted - and i can't factory reset, because i can't get into the stock recovery.. which doesn't rely on the usrdata/cache, to my understanding.

EDIT:

perhaps i should wait for TripFX to get the preloader with a matching md5. maybe the stock recovery.img is bad...?

EDIT2: ok, so i flashed the original scatter posted from TripFX. format + download, held power and vol +, after letting the white RCA screen hangout for 15 minutes.. the stock recovery booted! so i did a factory reset, and rebooted.. and now the tablet has been on the white RCA screen for 15 minutes... i'm going to let it sit for another 30 minutes, and if nothing, then im all out of ideas.
[General Questions and Answers] nathanski:
yes you must,, see the moment you ran a format on spflash tool when you needed only download you bricked your tablet, you must let him correct the full rom and then restor your tablet with it,,, its no longer a great matter of recovery or what have you, it became a unbricking matter,,, [MENTION=2670928]TripFX[/MENTION] will correct the rom just hold off
[General Questions and Answers] synius:
Once the ROM is fixed it should be as easy as flashing it, and then then booting up

Sent from my RCT6773W22
[General Questions and Answers] TripFX:
can you do a dd dump of the v38 from recovery like you did the v31 or step another v38 user thru it. make it 2 zips total when you upload. 1 system.img only and the 2nd zip everything else. Please and ty

EDIT: We dont need data.img
[General Questions and Answers] TigerG8:
I've used SPFT (spflash tool) many, many times to unbrick devices with mediatek chipsets - that being said, i knew already not to 'format + download' for a working device, all i needed was TWRP recovery. i had already flashed using Kingo (which i replaced with SuperSU after successful root). the reason i chose to 'format all + download' in the first place, was because "download" (for recovery, only) rendered me an un-useable device. As i mentioned, im just going to wait until TripFX can verify a matching md5 before i proceed.
[General Questions and Answers] synius:
The files I pulled were done from inside android using terminal,

I probably could provide them again via alpha-cwm recovery

The most I can do is a v38 readback the screen is cracked badly and glitched broken

I know usb debugging is off so mirroring is hard but not impossible

I dunno how to do anything with it cause of the screen

But mirrored I could root, terminal those files

And it was a little girls device unrooted

Even then can't mirror durn recovery

Any ideas I'm open to suggestions

Sent from my RCT6773W22
[General Questions and Answers] TripFX:
it may be more than just md5 mismatch. my dump that was used for the v38 files was done while in android where as syinus dump for v31 if i remember correctly was done via recovery. which is why i just ask him about doing v38 dump same way to verify if just md5 only or if the file/s them self is corrupt. v31 is fine and works thanks to acejay3200 for confirming with his tab. I can flash v31 and boot it but no charging, no touch, and nvram error in wifi (which nvram error is an easy fix) when i flash v38 files i get nothing but lit black screen only. So yes v38 is still fixable it is just a matter of what is causing the exact issue and we are narrowing it down signifantly

[MENTION=6253458]synius[/MENTION]

You should still be able to enter recovery without screen xD

Ok try readback start 0x0 length 0x8800000 zip it when you upload plz
[General Questions and Answers] synius:
The steps to do the dump are

Need v38 rooted, terminal, external sdcard, es file explorer( to move files into a folder after copy is done) otherwise they may not appear unless in folder

In terminal type su (careful)

Type lowercase LS you will see the root directory

And a bunch of mtd@

The command you need to use is this

dd if=/mtd@android of=/storage/sdcard1/system.img

dd if=/mtd@preloader of=/storage/sdcard1/preloader.img

dd if=/mtd@(all of these need to be copied)

Use the name of the file for the output use .img as extension

Some of these may seem like nothing is happening for awhile but system is a gig

output location is always the same /storage/sdcard1

When all the files except Userdata are done unload on to computer and 7zip store system.img by itself and 7zip store the rest together

Sent from my RCT6773W22
[General Questions and Answers] TripFX:
try the readback i posted plz and someone else plz follow what synius said thanks
[General Questions and Answers] synius:
readback being uploaded ill post link soon

[MENTION=2670928]TripFX[/MENTION]

http://www.mediafire.com/download/8zym5bgb7lf7hxq/ROM_0.7z

Edit: imma try using the broken screen and get USB debugging on. If I can get that working I too can provide v38 file images for verifying
[General Questions and Answers] TripFX:
Got it thanks
[General Questions and Answers] leetree2001:
hope this is correct @TripFX v38

https://docs.google.com/file/d/0B3_XLSrRQd5OVHNETXRIaURxRmc/edit?usp=docslist_api

https://docs.google.com/file/d/0B3_XLSrRQd5OdEktRWZKTUZxVGs/edit?usp=docslist_api
[General Questions and Answers] TripFX:
is this dd from v38? and done thru recovery?
[General Questions and Answers] leetree2001:
Yes it is, I hope it's correct
[General Questions and Answers] TripFX:
we will find out tomorrow for sure when codelover gets up but if you did it thru recovery on working v38 tab then should be correct. verify md5 of system2.zip which i get

verify with the zip you uploaded

if you need a tool to check md5 i use WinMD5 but any md5 tool will work.
[General Questions and Answers] leetree2001:
Yes, md5 is correct, but I don't think it matters.since I didn't do it from recovery. Sorry I don't have a computer. I had to do it from terminal.5efad51dd43da34fe90c41adcb37c95f
[General Questions and Answers] synius:
Should work v31 works and I did it from terminal

Sent from my RCT6773W22
[General Questions and Answers] Jessa.blxck:
Rca kingo root crash.

I had installed kingo root with success the gravity box and xposed framwork. I went to change something and then it required reboot. Started saying process com.android.systemui has stopped. and now it won't show any visability on the screen at all. I know it is because what I had done with gravity box but I am unsure how to fix it! Can anyone help at all? Or direct me to the proper page? Thank you!
[General Questions and Answers] TripFX:
2 options come to mind that you can prolly do right now.

Option 1: If you have adb debugging enabled then you can use windows or linux and remove gravity box without losing userdata via adb shell

Option 2: factory reset should clear it up as well but you will lose userdata.
[General Questions and Answers] nathanski:
reboot holding volume down as soon as its at the black screen with rca in middle,, then unistall the app while in safe,mode.... yes safe mode is a thing in android,,,,, or strobe hiting power button durring boot ,, thats 22 sec, of rappid hitting power button directly after the white dog boot screen,,, that should disable xposed frame work,,,,, so boot safemode n unistall ,,,, or boot disableing xposed and edit as needed,,,, options 3 and 4
[General Questions and Answers] synius:
How's the tablet tripfx

Sent from RCT6773W22-V31-1.10.0
[General Questions and Answers] TripFX:
current progress

UPDATE v31:

well good new's is V31 if practically done and the test v31 twrp [MENTION=4893922]codelover[/MENTION] uploaded fixed the touch alignment issue. I do caution people not to use spft to flash recovery on working tab but instead either wait for us to release a safer and easier way to flash it.

UPDATE v38:

current situtation if flashed with v31 files it boots but no charging and no touch. if flashed with v38 files it doesnt boot but gives backlight screen only and it does charge. We have narrowed down what could be the cause for it and are looking at few solutions some easier to try then what the final solution would be in which case i personally would like to avoid having to do as it requires a LOT of time. I will say what the final option is as im sure someone is going to ask the question "Why not change the v31 files to work with v38?" The ansere is simple it would take a long time to very long time to do being there is no source nor a specific file you can replace from one to the other. however being it those "drivers" reside in lk.bin and preloader.bin it is possible to reverse engineer it and change it but it could cause other unknown problems which is why it would take a long time. This is where my expertise would come in over codelover. he is the better programmer and i am the better reverse engineer'r without him and his coding skills and android expertise in general we would all be pretty hopeless as far as having a rom to flash and twrp. Codelover has a few things he wants to try and it would require less time to try them instead first.

UPDATE OC-UV:

i was hoping to have released the oc-uv a week after rom and twrp was posted but due to techincall issues if you have been following whats going on it is on halt for now. as most of my time im busy with codelover getting v38 rom worked out and personal life.

We are doing the best we can to get it running as soon as possible. Thanks for being patient with us and others for trying to help us when needed.
[General Questions and Answers] Xactot:
So then, is it safe to use a Play Store app like Voltage Control to adjust the voltages? Or does the kernel not support voltage changes yet? I mean, I know it already can have the CPU underclocked, but I don't want to venture off into soft-bricking my tablet unnecessarily. Also, I was wondering How do I determine what version my tablet is? Is it the last part of the build number in settings under "About tablet"? Because if so then my tablet's version is:

V28-V1.6.81. I'm not sure if I can do anything to help, but I'd be happy to try if I can.
[General Questions and Answers] synius:
You have a totally different revision I could refer to a previous post of mine in that regard

Sent from RCT6773W22-V31-1.10.0 -Twrp2.8.6.0-Codelovers-Compiled
[General Questions and Answers] TripFX:
yes please guide him on dd dump, info such as dumchar_info, mtdinfo, etc for making scat also lcm would be nice as well. i want to make sure is a the 3rd variant we've encountered which im sure it is but best to be on the safe side.

as far as the voltage control goes nope not possible without source code. i do know a way to use predefined on the fly but you will have to wait for us to fix v38 variant as well as get a twrp made for your variant should you need to restore rom for w/e reason.
[General Questions and Answers] nathanski:
could you restore my cwm v38 backup i reposted some pages ago, my system works with them othrs dont?
[General Questions and Answers] TripFX:
I am grateful for you guys wanting to help us get v38 working as fast as possible :angel: but at the stage we are now there is nothing more you guys can do to help unless you are a really good programmer or hacker as well as a deep understanding in os's on how they work . otherwise there is nothing more you guys can do to help as far as v38 goes. unless we make a fix and your a v38 tab user waiting for a fix and confirmed it worked for them. However i would make it easier on us if you guys can help new users as to whatever they need to know as well help guide others that have a new variant that we have not encountered before like the recently discovered v28 variant. help guide them thru the steps needed for the info we will need and the files that we will need and upload it so we can add support for it as well. thanks
[General Questions and Answers] TripFX:
could a v38 user with working tab do this plz and upload thanks

1.Type these following commands

adb shell

cat /proc/mtd

2.Partition table will appear.. to save it type this command

cat /proc/mtd > /sdcard/firmware.info
[General Questions and Answers] RcklssNdngrmnt:
Here ya go. Let me know if I can pull anything else for you.

RCT6773W22-ANDROID4.4.2-3101-V38-V1.8.0
[General Questions and Answers] TripFX:
same for v28/v31 either one will work
[General Questions and Answers] RcklssNdngrmnt:
rct6773w22-android4.4.2-6378-v28-v1.7.21
[General Questions and Answers] synius:
Tripfx in regards to the voltage CPU freq spread mentioned awhile ago, can those files be safely edited to give lower freq right voltages

Sent from RCT6773W22-V31-1.10.0 -Twrp2.8.6.0-Codelovers-Compiled
[General Questions and Answers] bryantjopplin:
Just in case here is the firmware info and half the mtd images

http://xdaforums.com/showthread.php?p=60375880

Edit here is the system.IMG

https://docs.google.com/file/d/0B70_Vt0fSnvceldaaWhoOWswYkU/edit
[General Questions and Answers] TripFX:
I need a working tab v38 user to do a full readback in spft. doing a readback only is perfectly safe and wont drain battery but be warned it will take a while being readback can only go about 450 kb/s-1.37ish mb/s avg 1mb/s

compress it first before you upload it.

page only

start 0x0
length 0xB1200000

[MENTION=6253458]synius[/MENTION] you must be referring to the

file. along with the other cpu files you see in the same folder. no those are just the "logs". next week if you v31 user's want i could work on the oc-uv project however until my v38 tab is working again i will not be able to test it at all and would require you guys to give me feedback and only DO what i say to test and not start doing things with it as that will be a major no no. if a test fails and the tablet freezes even after a reboot then you will have to factory reset and maybe worse case reflash system. So depends on how much risk your willing to take.
[General Questions and Answers] synius:
Willing to test oc project.

as this will allow me to test twrp restore also

I'll make a recent backup of current

and then again on success

V31 is a stable candidate with options for repair

Sent from RCT6773W22-V31-1.10.0 -Twrp2.8.6.0-Codelovers-Compiled
[General Questions and Answers] vampirefo:
Sounds like a good test.
[General Questions and Answers] synius:
Readback from V38 Pageonly

start address 0x0

lenght 0xb1200000

will post link when readback is finished and uploaded

[MENTION=2670928]TripFX[/MENTION]

http://www.mediafire.com/download/r9dpnhntl93lfob/ROM_0_v38_0xb1200000.7z
[General Questions and Answers] bryantjopplin:
Well good news, the tablet is still working lol but I keep getting a firmware up and was wondering if there is a way to pull it for you guys and upload it?
[General Questions and Answers] synius:
[MENTION=2472806]vampirefo[/MENTION]

has before

What revision do u own
[General Questions and Answers] bryantjopplin:
V28
[General Questions and Answers] synius:
We have only ever had the one update. Would be great to check this out
[General Questions and Answers] bryantjopplin:
Its been going on for about two weeks or more now that I have actually noticed and if I can capture it I will upload it. Will be about Friday or so though.
[General Questions and Answers] synius:
I would recommend waiting until the original uploader can advise you on this so you can pull it from device without actually applying it
[General Questions and Answers] bryantjopplin:
Yes of course. I don't want to you update
[General Questions and Answers] synius:
While making v28 scatter, I noticed the scatter for v38 has incorrect partition size for protect_f its capital C when it should be lowercase c

I'll make edits to v3.1-v38 scatter shortly when I can..

Any version of tablet except

V38

V31

V28

These versions have started developement

Are welcome to pm me to start the process of ROM development

I will pm steps after inquiry

[MENTION=2670928]TripFX[/MENTION] v28 scatter from xactot's device

http://www.mediafire.com/view/ev8n61nijfihnmf/MT8127_Android_scatter_RCA_V1_V28.txt

https://www.mediafire.com/folder/n8whd8dib8bs8/v28 these are the source for scatter

we are progressing to stage 3 dd commands

sent from my RCT6773W22-V31-1.10.0-TWRP-V2.8.6.0-Compiled-by-Codelover
[General Questions and Answers] synius:
[MENTION=2472806]vampirefo[/MENTION]

can you explain how to get the update.zip so i could analyse it ive just made a v28 scatter based on xactots device and this would be great to compare my finished scatter to the scatter provided in the update,,

i remember you saying you started the update let it download, then durn installation you canceled it midway but that doesnt help and without proper information we could lose this update which would suck
[General Questions and Answers] vampirefo:
http://xdaforums.com/showpost.php?p=58731336&postcount=117
[General Questions and Answers] bryantjopplin:
Mine is a stock recovery. Adb can't be used in it right? Also can't I run logcat and hit download and pull the URL from the logcat then download on PC?
[General Questions and Answers] vampirefo:
I posted how I did it, if you want to use your own method go ahead.
[General Questions and Answers] bryantjopplin:
I seen, but it looked confusing.
[General Questions and Answers] vampirefo:
No problem try your own method, it may work better for you.
[General Questions and Answers] bryantjopplin:
I would like to try yours. But anyway to get a little clearer?