yashsingh1/xdaforums huggingface dataset:
[Android General] metri666:
Really messed up my S7100

I'm looking for any help on recovering my S7100.

I started by rooting and then adding Zeam launcher. I then started removing all bloated chinese apps.... I accidentally removed input support but the thing still ran so no big deal.

I figured I'd re copy the files from update.zip to /system/app folder in root explorer. Then rebooted..... I forgot to set the file permissions!

Now my device won't get to launcher and just keeps looping on the last boot image. I can get to the device with adb, but su seg faults so I have no way to change anything.

Why not just use system recovery to reflash? I can't get into system recovery. When I hit the correct buttons, the upgrading message is displayed and then the unit just boots normally. I've never been in system recovery since I got the unit.

I didn't know it would end up such a problem.

Any thoughts or sugestions would be very much appreciated. It's a nice little toy and I like playing MAME, NES and SNES stuff on the go...

Thanks
[Android General] butch87402:
Sorry about that man not a dev but I got a question where do you get name roms?... Other than their little ui thing..... Cause I updated the emulator through hi market but when I downloaded roms the emulator doesn't pick em up

Also anyone else having problems with the music player?.... Like it would say I have no music on there then it changes after a few reboots
[Android General] cybercod:
The answer was going to be with chmod, but if su is segfaulting, I dunno...

adb shell

mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system

then

chmod 755 /system/app

or perhaps

chmod -R 755 /system/app

which I got from:

http://xdaforums.com/showthread.php?t=1389728

You may need to re-push the su apk, if it's permissions got changed too.

These are all just guesses, Good luck!

---------- Post added at 09:40 AM ---------- Previous post was at 09:35 AM ----------

Do you mean mame roms? or? There are lots of sites with roms out there, google is your friend. ;) I would post a link, but lots of forums frown on piracy, and I don't wanna get banned or anything.

I ditched the music player in favor of Mort Player. The default player seemed a bit too simplistic.
[Android General] metri666:
I tried the mount command but got operation not permitted, must be su.

I'm not sure where su is located but I likely can't push it as I'm not root... this is a viscous little circle.

I ended up downloading a romset from TPB (pirate bay) and downloading mame4droid and installing that. I don't listen to music on the device to I'm not sure about that one.
[Android General] cybercod:
You should be able to push it with adb if you have non-market sources turned on. If it interacts with su behind the scenes, perhaps it'll bonk on you, but its worth a shot. I pushed stuff to my old Aria that way, it didn't involve gaining root in the shell... though I did have to originally root it to turn on non-market sources... I dunno.

Worth a shot, no?

Otherwise you may have to investigate other means of re-rooting via the USB cable before you can fix the situation.
[Android General] blokenfeffer:
Try rooting again with SuperOneClick and see if you have any success with it clearing up your issues.
[Android General] metri666:
Super one click got me into root shell. Now I can at least play with the files. Thanks!

Does anyone know how to apply an update.zip without system recovery? Just copy all the file and set permission?

For that matter does anyone know what could be wrong with my system recovery console? The device tries to access it (Upgrading .... message appears) but then the device boots as normal. Maybe a missing partition, missing files...?
[Android General] blokenfeffer:
Have you tried to reboot into recovery via adb shell?
[Android General] metri666:
I have tried rebooting with "adb reboot recovery" but it just shuts off the device. All adb reboot commands just shut off my device. Then when it's turned back on it just tries to boot normally. Thanks for the suggestion
[Android General] blokenfeffer:
Try this:

adb shell

su

reboot recovery

As odd as it sounds, try this with the charger connected.
[Android General] metri666:
The charger did allow the device to reboot this time and not shut off, but still no recovery. For the sake of completeness I tried reboot bootloader also...

Thanks for the idea.
[Android General] cybercod:
Anyone have any idea how this thing would react to Clockwork Recovery?
[Android General] butch87402:
I see well I used n7 player to limit the files to one location....

Also so you guys installed a different mame4droid not the one that comes with the tablet

Also the screen on mine is blurry anyone has this issue?

Like its not as sharp as my phone
[Android General] cybercod:
Did you get the capacitive screen or the resistive one?
[Android General] butch87402:
Capacitive one because they sent and email regarding the differences and the choice to upgrade is the better one.... How do I know the difference?

I can multi touch
[Android General] butch87402:
But when I started up the n7 player it said there was a problem with the multi touch..... I used the capacitive update off their website
[Android General] cybercod:
If you have multi-touch, you have the capacitive.

I had thought that if you had the resistive screen, it might explain the blurry as it has a lower resolution.
[Android General] butch87402:
I see well thanks its just that the screen is grainy at times and in the middle on the left of the device anyone got that blue sprite there?
[Android General] cybercod:
Sounds like you just got a bad screen. A dead pixel is common here and there, but they still might replace the unit, as it was damaged upon receipt.

Good luck
[Android General] jamdog30:
Well i just bought one of these as a little present to myself asI got a little older yesterday. So I have the unit and I was looking at the firmware page which has a new release as of yesterday. I am downloading presently
[Android General] butch87402:
Do I bring the issue to JXD or chinagrabber?

Cause it looks fuzzy like when the blackberry first came outline the first pda

Just installed the English firmware update from yesterday and wow it is awesome

So much faster.... Need to update my market though
[Android General] blokenfeffer:
Looks like they've finally pushed out the English update once more, be interesting to see what they've done with this firmware.

Can you confirm which model you're on, the capactive or resistive?

The previous update that was apparently none unit specific was 1227 whilst this is 0227. I'm going to assume this is the firmware that includes the english frontend and apps such as TED and YouTube, as pretty much advertised on every JXD page for the S7100.

If you wouldn't mind keeping us posted with your experiences, that would be great :)
[Android General] cybercod:
I would suggest starting with Chinagrabber, at least to figure out the warranty procedure.

Can you confirm whether the microphone is working on the new english firmware?

Also, what version of Android is it?
[Android General] embergabor:
My JXD has bad color on the screen. The colors are really washed out. The backlight brightness does not affect it. I tried Screen Adjuster, but that can't reduce color luminance only the allaround brightness. This is not a software error, because screenshots show normal colors. Is there an app for increasing color saturation or independent color luminance so I can counteract?
[Android General] butch87402:
Still 2.2 I tried the market push to system apps for the updated market but it didn't work any ideas?

It feels so much faster

I'm actually using the stock launcher

I think.... Still testing the screen coming on and off has been fixed

In voice search the microphone lights up but goes nowhere

Still fcs on edit launcher
[Android General] jamdog30:
Hi i am on thecapacitive version of the tabpet. The 2.6.34 is the kernel with 2.2.1 as firmware . Probably not much differrence in the big scheme of things. I have ttried t overclock as i rooted wirh visionary with no problems. The problem still stands with the kernel
[Android General] jamdog30:
3251 antutu mark with the sd speed increase app with it maxed out. My htc incredible s achieved 3600 clocked at 1.5 ghz and this device is not even optimised yet so i am guessing that with the right kernel and oc sauce we can be attaining post 5k. Which will.be more realistic for a device like this.
[Android General] cybercod:
I've been playing around with the UI a bit. In /mnt/flash/roms is the various folders for specific consoles.

In the chinese version there is a folder in there called psroms. On the English version you may have to create it.

If you put your playstation roms in there, they show up under the PS1 Game tab on the gamecenter UI screen.

Create a folder with the name you want displayed on the gamecenter UI and put inside it the image file named the same as the folder, and a png image for the icon, also with the same base name. I believe they need to be like 75 pixels square, but don't quote me on that.

Other emulator tabs on the gamecenter UI have other folders associated with them by default.

n64roms and arcaderoms are the only other two I've mess with yet. When I tried the previous English firmware, it didn't have the auto-downloaders for downloading games and whatnot. Does the current one have those?

Its when you use those on the chinese firmware that the appropriate folders in /mnt/flash/roms are created.

I still haven't figured out where the main page stuff is kept, although removing the music player does open up the spot where its widget was, and you can put things there, but they lock in when they go on and disappear on reboot.

If anyone has similar observations about the original UI and how to hack with it, please post.
[Android General] dalkhoutoff@gmail.com:
Interesting

It would be interesting to see this tablet. I wonder what the battery life will be like. Does anyone know if it will have 4G connectivity?
[Android General] cybercod:
When playing PSX roms, battery life is abysmal. It seems to drain very quickly. An hour and a half, maybe 2. I could be wrong though, thats just a guess.
[Android General] butch87402:
On the English firmware update anyone else having problems downloading files off the net? Or even in SwiftKey Tablet?

Oh well back to chinese firmware.
[Android General] deshwal:
I am also having same issue, any one figured it out yet or do I try to send it back?
[Android General] not_a_username:
emulator keys are wrong predetermined

Can somebody please explain me how to change the predetermined keys disposition on ps4droid? (square triangle circle cross start and select are wrong predetermined, and when I change it, it goes back to the wrong predetermined disposition after reboot) :confused:
[Android General] butch87402:
Just tried to flash the chinese one and I got an error
[Android General] cybercod:
set it and then

Menu>Settings>System>Save as defaults

or something similar... working from memory

Also, backing up to the SD is good if you plan on wiping.
[Android General] butch87402:
Ok so I figured out what went wrong my lil 2gb memory card got full so nothing would download

How do I use the internal memory card? I took the memory card out but when I downloaded stuff it tell me to insert a memory card help anyone?
[Android General] cybercod:
Internal memory is located at /mnt/flash

Should be about 6.5 gigs or so free.

On the chinese firmware, the autodownloaders download their stuff to this location:

/mnt/flash/roms/<subfolder>

where <subfolder> is either psroms, n64roms, nesroms, arcaderoms, etc.

If you plug in a USB memory stick using the OTG cable, it will mount it at /mnt/sda/sda1 (i think). If it mounts at /mnt/sr0 then it thinks it is a usb cd/dvd drive.

I have found that using a memory stick and the OTG cable is the fastest way to transfer data onto the device. A regular data cable connected to a PC is much slower. Its faster to just load up a USB drive and plug that in.

Also, I haven't yet figured out how to safely unmount the OTG-usb drive, other than turning the tablet completely off. If anyone makes any headway on this, I'm all ears. I'm hoping I don't have to use a command prompt.
[Android General] not_a_username:
back camera does not work on my device's stock camera. Tried HDR camera app from market and is working. however this app has only photo camera and not video camera. please can someone recommend another camera app.

I backed and removed the stock camera using titanium backup and the icon on the main screen disappear so I could place there the HDR camera icon.

" replace the stock emulators " (...) " adds the advantage of having a launcher icon for the emulator itself, should you wish to customise your device with another launcher " It is easier to use titanium backup PRO , long press on the emulator app and "transform into user app"

I could download a lot of games from their market (using last 5-3-2012 english firmware) thoot there were no playstation games to download. Many playstation games (download from the internet) working quite well, excellent (Medal of Honor, In the Hunt, Street Fighter Alpha 3, Gran Turismo2, R4 Ridge Racer Type4, Tony Hawk's Pro Skater 4, Tekken 3, Tomb Raider 3, Metal Slug) I won't say those not working for maybe I got the wrong version.

Overall I am very pleased with this device :)

@cybercod : thanks, your advice worked like a charm :):)

---------- Post added at 05:54 PM ---------- Previous post was at 05:12 PM ----------

For those having troubles installing android market, you may follow this instructions instead: [YOUTUBE]http://www.youtube.com/watch?v=AtDAJd6AQ4o[/YOUTUBE] that worked for me. No android market updater.
[Android General] butch87402:
I see but I'm using swift key tablet.... And it has to download the English language to the sd.... Same with dolphin and the stock browser..... When I try to download a rom it says can't create file folder... Nothing downloads unless I put the sd back in
[Android General] cybercod:
Swift key? Explain, I don't know what you mean.
[Android General] butch87402:
SwiftKey is a keyboard there's a phone and tablet version.... It downloads the dictionary (English Spanish etc) to the memory card so how do you use the internal flash memory card? I know it's in mnt/flash etc but if I take out the memory card nothing downloads so what I do is that I download whatever to the sd then move it to where I need it with es explorer that's my little fix..
[Android General] cybercod:
I don't think you can do that unless you change the mount location of the flash memory, and that might mess up some other stuff.

The keyboard program is expecting to use the SD location. If there is no way INSIDE the program to change that location then something must be there to catch the data.

If you do not have the SD card inserted, you could feasibly use a symbolic link to redirect the /mnt/sdcard location to the /mnt/flash, but I've not done symbolic links on Android, only on Linux. I recommend researching the 'ln' command and getting the android terminal emulator or using adb.

You can't do symbolic links on the flash or the SD because they're formatted in FAT a Microsoft format that doesn't handle symlinks properly, but you can do them for the base mount points as they are mounted on the android's root filesystem which is symlink friendly. You might have to create the sdcard folder inside the /mnt folder if the card isn't inserted.

And be warned that all of this may screw up pretty bad when you actually DO put your SD card in as the location will already be taken. So do this at your own risk.

With proficiency, you might be able to script this. Good luck!

Edited:

Oh wait, you mean you're loading up the roms on the SD? I found that to be slower than the OTG USB method.

Did you get a short little cable with your tablet?

looks like this?

Plug a USB memory stick into that and plug that into your tablet and it will show up at /mnt/sda/sda1. Very fast transfer to flash this way! And your SD card can stay IN.
[Android General] butch87402:
I see thanks man

How about using my cell phone instead of a usb drive?
[Android General] cybercod:
I dunno. You'd have to try it and see.
[Android General] not_a_username:
unable to install any apk heeeelp! :(

:( :( :( I might have deleted something important from system/apps. I was trying to completely clean up the tablet from Chinese bloatware. Now I am unable to install any apk files on my phone, regardless of where the file is located, and regardless of any app manager. when trying to install from market it downloads app and then instead of installing it, market crashes. Same when trying to install from sd with app installer or root explorer or astro. all them crashes. is there any apk needed to install other apks that I might have deleted from system apps? I tried "wipe data/factory reset", "wipe cache partition" , "wipe media partition" , "apply sdcard: update.zip " several times but same problem persists. worst thing is now after wipe/reset I do not have/cannot install root explorer or other to deal with /system/apps folder, only a non working app installer :( :( :(
[Android General] blokenfeffer:
What are the errors you are getting exactly?
[Android General] not_a_username:
It just says that the application crashed, wherever market, root explorer, or app installer. f.i. with app installer "The application AppInstaller (process com.gsoft.appinstall) has stopped unexpectedly. Please try again."

Best way to solve it would be to flash an original rom from computer.

Any way I could get an original rom to be flashed using SmartFlash or NVFlash or similar?
[Android General] cybercod:
Do you have the chinese rom on the SD card to flash with? If you do the wipes and reflash, it should have no issues whatsoever. What is it telling you when you do the update.zip part?
[Android General] not_a_username:
yes, after applying either english or chinese updates the problem persists. app installer crashes. and I have notice market is still there, without account but there, and I guess some other apk I installed or substituted on system apps are still there, and some I deleted may still not be there. and yes I did a "wipe data/factory reset", "wipe cache partition" , "wipe media partition". But it is not a flashed rom, only a applied update. I guess the only way to get everything as new is to really "flash" (using SmartFlash or NVFlash or similar) a real original rom.

---------- Post added at 04:57 PM ---------- Previous post was at 04:31 PM ----------

I mean all that "wipe data/factory reset", "wipe cache partition" and "wipe media partition" wipes all user data and apps. but it won't wipe the system (froyo). So it won't wipe the system apps. Applying an update.zip won't completely rewrite froyo and its system apps, it only installs/updates some apps, system apps, and other data.
[Android General] cybercod:
That is really weird. I had done something similar trying to clean up /system/apps and everything was force-closing constantly.

Doing all the wiping and reflashing fixed it for me and it did remove the market and other crap that I had put in there. I wonder why it isn't working like that for you. Very strange indeed.
[Android General] not_a_username:
I gave Gavo's custom rom a try and somehow now it works, now I can finaly install apks again :)

I thing the problem was that I removed something that made the system lose the capacity to verify apk's signature.

By the way I like Gavo's minimal custom rom for the jxd s7100 wich is one of the first custom roms for this device. Almost nothing installed, no chinese aps, no weird launchers, no even emulators.
[Android General] butch87402:
Why you no post link to rom man? :-(
[Android General] not_a_username:
http://www.apad.tv/apadforum/showthread.php?2460-GaboROM-minimal-ROM-for-Capacitive-only
[Android General] butch87402:
Thanks man it works nicely
[Android General] embergabor:
(I'm Soulflier from the apad forum.)

I'm just letting you guys know that I'm making an update that can be installed on any firmware (resistive or capacitive). It won't wipe data. It will do what GaboROM does but without the complete reinstall of the firmware. So basically it will:

-install root, google play, google account

-remove chinese apps, emulators from system

-replace the keyboard, launcher

Maybe there will be separate packages for these updates (so 1st for root and market, 2nd for removing system apps, 3 for replacing system apps).

It would be great if you guys could suggest apps as replacements or additions.

Make sure to check the apad.tv forum because I don't have permission to post external links on XDA.
[Android General] butch87402:
Updated emulators

Launcher products or zeam as the stock launcher

Rework the triangle square etc to do what we want

Sleep mode fix

Idk if is possible.... Gingerbread? Bluetooth? Here wishful thinking?

Hmmmm can't think of anymore

Wait game sounds like for notifications

Or like keypad press.... Like for selection
[Android General] cybercod:
An older version of Facebook... the current one will not work on this version of android.

Pulse Newsreader is good.

ES file explorer is excellent, I'd keep that if I were you, but a slightly newer version is out there than what came on it, and its a lot better

Updated and properly configured emulators would be very nice and save a lot of initial frustration, if that is possible, but everyone's ideas of properly configured is different.

Dolphin HD browser, Skype any version that works right, Wifi Analyzer is good for site surveys. The Samba and VNC servers and clients, perhaps Connectbot.

A decent camera and camcorder app.

And the photo viewer sux ballz. Takes forever to load. If anyone has an alternative, I'm all ears.

Oh, and JuiceDefender. This thing is hell on battery.
[Android General] Pahen:
embergabor

Thanks a lot for your GaboRom !

In next version i think its better to include:

ES file explorer and Skype (any really working version) and that all, because each person has their own set of favorite programs. Again, take time to clean the system from unwanted software is very bad. And it May be QQPlayer must be in this update, imho.

In the extreme case is to create three versions of the assembly - a "blank" (updated v.0.2), 2nd version with a pre-set emulators (they are of interest to all owners of S7100 as for me the best Emulator of MSX i tested at my device is "MSX.emu") and 3rd - the most complete assembly emulators and programs.

*offtopic - its impossible to make an account at apad.tv using my email account.
[Android General] embergabor:
Alright. Thanks for the replies.

I think we need a custom recovery to install a ported gingerbread or ics rom. Also I cannot port roms yet just modify existing ones.

For the sleep problem I need a solution before I can implement the fix (I have tried some build.prop tweaks but they didn't help at all)

3 rom versions are too much, 2 could be handled fine (a minimal and a full).

I will only install the most needed apps like facebook, skype, ES, gallery, camera etc. I think Connectbot and such are not for the average user.
[Android General] cybercod:
Fair enough lol... can't blame a guy for tryin.
[Android General] butch87402:
You guys seen this?

http://cwh5479.chinaw3.com/pro_d.asp?id=425

Guess jxd aren't the only ones who are "different" still looks cool though
[Android General] cybercod:
JXD has 5 or 6 models in this form factor with different specs.
[Android General] butch87402:
It's like the vita exactly
[Android General] cybercod:
Did anyone else mistakenly think this thing would have an analog joystick on it?

Or does it actually have one and I'm not using it right?

The round stick under the D-Pad just has 4-way directional input, same input as the D-Pad, just a little easier to pull off fireballs in Street Fighter.

:(
[Android General] embergabor:
I did think that too. The device handles the dpad and the stick as the same input. I don't mind that it is not true analog, but two different inputs would have been nice for n64 for example.