Hi,
I bought a generic no-brand tablet off eBay - model S750L that uses Rockchip 292x. I tried to root it, but it doesn't boot now. I guess the firmware I used isn't compatible (even though I used RKBatchTool and got a success message). So, I'm asking if anyone out there can point me to the proper firmware? All I can find so far is the name brand stuff like Galaxy tablets.
Thanks!
Someone please help me. The closest I got was some Spanish language firmware - the tablet could boot, but man it was messed up. The screen was off-center, and the touching was misaligned from the icons' locations. Not exactly usable.
me too
I've tried everything. Can someone point us in ANY direction?
Thanks a lot
link ---> 4pda.ru/forum/lofiversion/index.php?t519562.html
Hello Xda community,
Alright after exhausting all other options i have decided to turn to our community in hopes that i can come to some sort of resolution for this matter. Okay i own a Sophix Tab-840g past warranty my problem is my software was causing freeze and reboots i left it that way for a while because it wasn't bothering me. So i waited long enough for them to make a new firmware and i upgraded, however upon doing so i was not able to use the touchscreen. Also, i have no back up...... was a bad move in retrospect. I did some research and found that that the freezing was due to the actual firmware and many people had tried to update running into the same situation where the touchscreen stopped working.
The only difference between when i did it and when they did it is the company had there older firmware available still. That is no longer that case they only have the new firmware and after calling they no longer have old software available. Other people reverted back and atleast there tablet worked, however I CANNOT get the old firmware ANYWHERE........in there guide they talk of the use of update "update-tab840-v02-20130315.img" when using there batch program. The only firmware available is the new one “upgrade-tab840-v03-20130607" i'm looking for the older update "update-tab840-v02-20130315.img" to fix my tablet or a way to fix this touchscreen hard reset is out of the option i have already done this method a couple times, i tried installing from sd, and from the computer all with the same error. Thank you so much for reading this and also for any help i procure. I will be uploading the version of my firmware i have no and the old one if i get it so this can the fix for this dreaded problem with so few forums talking of a fix.
Thank you,
Captainsploof
P.S. having trouble uploading firmware at this point keeps saying page unavailable during upload 8/18/2014
Hi Guys, first of all thank you in advance for any answer you could give! it will be much appreciated!
Now, before anything I know there should be hundreds of posts about this issue but I was unable to find one that could apply to my scenario. But if you know any post that could be what I'm searching please just point me in the right direction :good:
Now, here is the problem:
We bought this cheap chinese tablet with andrioid 4.2.2 for my mother and it seemed to work pretty slow and some apps where not working correctly, there where a lot of adds even when she was not on an application, they just popped out on the main menu screen, and, when trying to register Instagram it displayed a message stating that there where too many users registered in the device. I tried to root the tablet because found that it could be because some temp files but it showed that it was already rooted... So my guess is that whoever installed the OS, did it with a "hacked" version of it.
Up to this point I have tried to do a hard reset but the issue is still going because it is still the hacked version of the OS, and I havent been able to find a way to completely wipe out the OS and install a fresh new version of Jelly bean 4.2.2
Can it be done with the device conected to a PC? or can it be done with a flashed memory card?
I know finding the firmware for a chinese tablet will be a major pain in the ass but, is there a version that could work for different models? (this is a Mobix MBX7 Plus, found the website mobix.com.ve but there is just no helpful info whatsoever)
Anyway, I hope you guys can help. Sorry for the somewhat long post
Again, thank you!!
Update!!!
I found info that could lead to the correct firmware, the CPU is an Allwinner Cortex A20, but Im still not sure if this format process is just like a PC, where you need drivers or everything is on the OS
Greetings,
I have a Coby Kyros mid7125 that was given to me and I'm trying to restore/refurbish/upgrade it. It has some REAL problems, not the least of which is no functional OS. I have tried to install several different OS's including: ICS and JB. I am able to get them installed, and booted up. But, no matter which I use, the touchscreen is inevitably non-functional, and USB debugging is not enabled. Therefore, I am unable to do much else with it from that point.
I would like to install Gingerbread 2 . 3 . 3 which it had originally, but am unable to find a copy for this model anywhere.
I have searched MANY places online, including this forum (which has helped me Immensely! Thanks for that) but I'm just not finding what I need. Unfortunately, being as this model is so old, most of the links to what I need are no longer functional.
The tablet IS rooted, and I do have CWM installed, however the stock backup is gone, and there are no other functional backups on it.
Do you have any advice for getting the touch screen to work once it is booted into an OS, or where I could get a Custom or Stock ROM for this model??
I am fairly new to the Android universe, but do have quite a bit of experience with other OS's.
ANY help or links you could provide would be MUCH appreciated!!
Ok,....next problem:
Ok, SO........after MUCH searching, and hair pulling from my scalp,...and after not finding any answers here,....I decided to take a different approach:
I downloaded and flashed the firmware for the Coby mid8125 onto my Coby 7125 and it works just fine. Only one problem....the screen is out of alignment, which tends to create problems using the touch screen. Not a surprise considering the 8125 is an 8'' display while the 7125 is a 7'' display.
Back story: I lost the stock recovery image on the 7125 due to some "experimentation" with trying to upgrade the OS and CyanogenMod, and could not revive my 7125. Could not find any copies of the 7125 firmware or stock image anywhere. So, being as they are closely related, I flashed the 7022 firmware onto it. Worked,.....except the touch screen didn't function at all. Turns out, the touch screen on the 7022 has a Capacitive input while the 7125 has a Resistive input. So, I flashed the 8125 firmware, which also uses a Resistive input, onto the 7125 and regained functionality! (yay!!) Unfortunately, the display itself is offset by about 1/4 in. x/y, and receives the input at different positions depending on which side of the screen you're trying to use. (drag!!)
Now: At present, everything is functional, but it's a real hassle constantly turning the tablet, and tapping in different places to run the thing.
So, my plan (another experiment) is to copy the TS driver from the 8125 firmware and insert it into the 7022 firmware (which also uses a 7'' display) and hope it works.
Problem: I need to know where in the file system, on the 8125 and the 7022, to locate the driver for the touch screen???
If someone could provide me with the file path, I would be grateful, and would definitely post the findings of my "experiment" here for others to reference. I know others have had the problem of losing functionality with the touch screen, and this could turn out to be workaround, if successful.
I would like to thank the Many others here whose posts and links have, indirectly, help me in my first foray into the Android universe. Without your sharing I, for one, would have been completely lost with nothing to show, except a nice paperweight, for my trouble. So,.....Thank You ALL!!!
FIXED IT,......Mostly!!
So, it appears tenacity pays off!
Through my own persistence,research, and experimentation, (and with no help from the various forums I've visited)... I managed to come up with a clean, Stock ROM and Backup of Coby MID7125 and, using CM v6, I have flashed it onto my 7125 and have restored it to full functionality! Everything works. Only one problem remains......
The display is still out of alignment. I have tried various means of realigning it, from re-calibrating it to trying to access the POINTERCAL file to adjust it manually (which I'm still trying to access), all to no avail.
I realize this is an Old tablet, and mostly no supported by, well, anything. I am using this as an exercise in familiarizing myself with the Android system before moving on to a more Updated version and device.
I've had some failures and some victories, but I am learning a lot and making progress in leaps and bounds. Although, it seems as though I'm doing it ALL ALONE!! I get no help or even suggestions from anyone on any of the various forums I've visited, and the research is mind-numbingly tedious at best.
Still,.....this problem with the (resistive) touchscreen alignment is my last hurdle with this restoration project, and I could REALLY use some input from someone who is better acquainted with these systems.
Anyone?? Anyone at all???
hey guys,
i'm having hard time to find out how exactly to flash my old oem tablet and i really dont expect anyone here to search anything about it(i do that...), just to guide me in general please.
i just found this old tablet and thought i could try to use it as a touchscreen-mp3 player connected to my amplifier...
i charged it and powered it but stuck on "android" logo, i tried many key combinations to put it to recovery mode but i just couldnt find it i guess.
then i started searching of how to flash it...
what is visible from outside is "f&u ETB7405" which brings almost nothing(it's just an oem model) so i opened to see inside where i can see one chip "allwinner a13" and "tzx-q8 713B 6".
it has 7" screen.
based on these i finally found a fimware (using PhoenixCard) that boots normally BUT i get no touchscreen or wifi working. i can connect a usb mouse and have access to it.
do i also have to flash any extra firmware/driver for just the touchscreen or wifi?
what is the most important characteristic("A13" or "TZX-Q8...") to concentrate my search for?
why is it so fcn difficult to find a working firmware???
in case anyone else is having the same issues and hopelessly tries to find the firmware for his device and bumps in unanswered posts or dead links, guys just try different "A13" firmware! Although i'm not really sure that it even has to be "A13"!
i was trying to find firmware with the most of my specs on its name like f.e. "A13-TZX-Q8-713B6" but the paradox happened. the most similar firmware names were not good and i tried a lot! instead i finally decided to just search for "A13" firmware and try any of them one by one despite the names. that was it! i have already found a couple!
from here: ww.androidtablets.net/threads/firmware-based-on-allwinner-a13-roms.72449
a13-TJ P860-V7.1-gsl1680-MID-756-V4.2-20130823-test-keys.zip
all works but there is only "english" and "thai" in keyboard languages.
A13_TWD_MID-gslX680-800X480_20130423 test-keys.rar
all works but touch screen "mirrored" sideways!
good luck to you guys!
thanks