I'm a captivate user who has been interested in the Streak 5 for sometime. I finally pulled the trigger when I found one at a very serious discount. the only problem is that the USB connection does not work so the Streak does not charge nor is it recognized by a host computer. The guy I bought it from said he has tried known good cables so it is a problem with the port.
Anyway I have two batteries and a charger so the charging part is not a big deal for me. I am concerned about whether it's possible to root the phone without a USB connection.
I have used numerous ROMs on the captivate and have AIO Toolbox and other assorted tools but they all depend on the USB.
The phone is unlocked running the latest version of 2.2
If anyone can point me in a productive direction I would be grateful.
Quielo
There are apps that will allow your Streak to join a local network. SAMBA filesharing allows you to mount your sd card as a drive so that you can copy files using your computer's fiel explorer. File Expert and ES File Explorer allows your networks shred directories to be seen on the phone. You can use one of these (or another appl, there are more) to copy files to your sd card with no usb connection.
You can then use the gingerstreak apk to root your phone.
This will work on an unlocked Streak, the Streaks locked to AT&T probably prevent the installation of apps from non-market sources. My Streak is unlocked so I don't know if any of the AT&T roms allow non-market apps.
I remember a forum thread about installing a custom recovery without a usb connection but do not remember what forum. You will need to install a different recovery if you want a custom rom. You may be able to directly download a rom package file (extension pkg) to your Streak and upgrade the stock rom that way.
Edit: I see that you have an unlocked Streak, you should be able to upgrade to 351. If you are going to upgrade, upgrade first then root.
It's possible to install a custom rec with adb via wifi but keep this in mind:
If you cant boot and you cant enter recovery you wont be able to fix it without a USB connection
You're gonna need to be very careful installing roms on it
Thanks Guys,
I am still on the bubble about installing a new ROM but I certainly want root rights to use TiBU and other programs. The difficulty of recovering from a bad flash is a real problem and maybe I'll call Dell about possibly fixing the port first.
The Streak is cool and while I may not use it as a phone I am thinking of downsizing my primary phone to something Veer size and just getting my email through tethering. Also the Streak 5 is an awesome GPS.
Quielo
hello all, just picked up the Nook Tablet (16g) - and of course i am wanting to root it. i have followed all the instructions from turning on USB debugging and updating my Drivers so the device is recognized as Android ADB (which took a long time) now i am trying to run the NookandZergy.bat file. it will not show any devices here. not sure what i am doing wrong.. i have tried several times and no joy. i am doing all of this with Win7 system if that matters ( i tried running Zergy as administrator also).
i am sure this problem has come up in the forums already but i have yet to find an answer yet.
thank you
rfronz1
just use sd card method? takes 10 min no adb needed
rfronz1 said:
hello all, just picked up the Nook Tablet (16g) - and of course i am wanting to root it. i have followed all the instructions from turning on USB debugging and updating my Drivers so the device is recognized as Android ADB (which took a long time) now i am trying to run the NookandZergy.bat file. it will not show any devices here. not sure what i am doing wrong.. i have tried several times and no joy. i am doing all of this with Win7 system if that matters ( i tried running Zergy as administrator also).
i am sure this problem has come up in the forums already but i have yet to find an answer yet.
thank you
rfronz1
Click to expand...
Click to collapse
I can't help you as far as the method you described above is concerned, but I can tell you from having rooted mine several times now that Albert's SD Card method (version 4.50) is super simple and has worked great for me. No Windows drivers to mess with, etc. He lays it out pretty straightforward. I use a 4gb SD card - can't remember if a 2gb will work or not. Give it a try if you got an sd card laying around.
manEEB jockey
Hi,
What is easiest, latest and safest way to root NT 1.4.1 ?
This one from Brianf21, which looks simple ?
Bootable Root SDCard 1.4.0 and 1.4.1
http://forum.xda-developers.com/showthread.php?t=1488035
Or any other SD card method (like the one mentioned above - Albert Wertz's SDNTV4.5) ?
What are advantages of each ?
Thanks.
M_B said:
Hi,
What is easiest, latest and safest way to root NT 1.4.1 ?
This one from Brianf21, which looks simple ?
Bootable Root SDCard 1.4.0 and 1.4.1
http://forum.xda-developers.com/showthread.php?t=1488035
Or any other SD card method (like the one mentioned above - Albert Wertz's SDNTV4.5) ?
What are advantages of each ?
Thanks.
Click to expand...
Click to collapse
thats the method i used literally after booting up tablet and making screen work i powered it down and rooted it using that image file. It all just depends on what you want if you want debloated no B&N stuff or you want stock but rooted with OTA updates blocked.
Personally I just rooted so I could install CWM and install cm7 I had no interest in stock or anything B&N.
Thanks nba1341.
I would like to keep B&N funcionality, but prevent OTA and be able to download/install apps from different android markets and web sites. Also, I would like to be able to unroot the device if necessary (go back to original B&N software).
Which SD method should I use (Brianf21 ?) ?
And one final question before I start the work, do I need to go through initial registration process on my brand new 16 GB NT ver 1.4.1 before starting the rooting procedure ?
I hope that rfronz1 will find this clarification useful too.
Thanks for help.
Hello, I have several questions about rooting and backing up my Android tablet but I'm not really sure where to begin.
My (current) goal is to back up the firmware that's currently on the tablet so that I can later restore to it in the event that something goes wrong. The only problem is I seem to have a newer version than the latest-offered version that was posted on the manufacturer's website, but the latest-offered version doesn't work. To make matters worse, the manufacturer's website is no longer online so there's no chance that the firmware I have will ever be uploaded. In other words, I need to root my tablet so that I can make a backup of the stock firmware to revert to if necessary.
The tablet in question is a Panimage Media Tablet R79RT2W5 that I picked up for $20. Before you tell me not to bother or that it's a piece of crap, don't worry; I'm VERY aware. The entire reason I bought this to begin with was BECAUSE it was a piece of crap. I was hoping that at the very least I could screw around with it and use it as a testbench to learn Android programming on with hardware I don't care about possibly bricking. (In other words, I wanted a cheap tablet to play around with so I wouldn't risk bricking my phone.)
I'll try to give you all the possible information I have on it. If you need any more information, pictures, screenshots, uploaded files, etc. I'll try to get what I can for you.
Panimage Media Tablet
Model Number R79RT2W5 (according to the physical sticker on back)
Model Number R79RTW5 (according to the 'About Device' page; note the lack of the 2 in the model number there.)
256MB of RAM
Firmware Version 1.6 (Donut, apparently?)
Kernel Version 2.6.29
Build Number WMT2.1.7_PD
2GB Internal Flash Memory (according to the box)
- Apparently it's a Gome Flytouch clone?
- It has a whole bunch of software made by WonderMedia Technlogies. (Which makes sense considering that it has a WMT-based processor.)
- It has "App Market" com.wonderappstore instead of Google Market. In other words, I basically have to sideload apks to get anything worth using.
Click to expand...
Click to collapse
Things to take note of:
- It has no USB port so I can't hook it directly to a computer (meaning regular ADB won't work), but it does take microSD cards.
- I can sideload applications, but they need to be able to work on 1.6, obviously.
- I have FTPServer installed so I can send files to/from my computer, but I can't access protected directories.
- I have run BOTH Universal Androot and z4root. Neither program rooted the tablet. z4root DID install SuperUser (which I'm assuming only worked because USB debugging was turned on), but SuperUser doesn't work.
- I'm willing to work with terminals or command prompts so long as I have someone able to walk me through the process.
Is rooting this thing a possibility?
Alternatively, the way that the firmware update process works is that you put a folder named "script.zip" on the root of the microSD card and then boot the tablet with the card inserted. The tablet will then proceed to automatically install the firmware on it.
Would it be possible to take advantage of this function to allow me to run a script that will back up the firmware to the microSD card before it boots that I would then later be able to restore onto the tablet as necessary?
I can upload a copy of the latest script.zip I have so that you can take a look at it if you'd like.
What do you mean by their isn't a USB port what do you use to charge.
Sent from my HTC Velocity 4G using Tapatalk 4 beta
WildfireDEV said:
What do you mean by their isn't a USB port what do you use to charge.
Click to expand...
Click to collapse
It has a generic electrical plug; one of the round ones with a single prong in the middle.
It doesn't charge through USB like most other phones/tablets, because there's no USB port on it.
you can possibly back up your phone's firmware even without a usb port...
using the stock recovery, you can flash a custom recovery like clockworkmod which gives you a back-up option... and you can also root it with that...
WisdomSky said:
you can possibly back up your phone's firmware even without a usb port...
using the stock recovery, you can flash a custom recovery like clockworkmod which gives you a back-up option... and you can also root it with that...
Click to expand...
Click to collapse
That's a bit of a problem... the tablet doesn't appear to have a stock recovery available.
I've tried as many button combinations upon boot as I can think of (Power + Vol. Down among many other things) and none of them boot into any sort of recovery mode.
I've even gone as far as trying to force my way in using the SysRq trick that someone got to work for the Ouya:
http://forum.xda-developers.com/showpost.php?p=42516267&postcount=6
...but unfortunately that doesn't work either. No mater what Alt + SysRq combination I use (out of the ones that actually work, that is), the tablet automatically restarts. Every time.
However, as I said in my OP, I think that there may be a small bit of hope.
Alternatively, the way that the firmware update process works is that you put a folder named "script.zip" on the root of the microSD card and then boot the tablet with the card inserted. The tablet will then proceed to automatically install the firmware on it.
Would it be possible to take advantage of this function to allow me to run a script that will back up the firmware to the microSD card before it boots that I would then later be able to restore onto the tablet as necessary?
I can upload a copy of the latest script.zip I have so that you can take a look at it if you'd like.
Click to expand...
Click to collapse
After a bit of messing around, I've found that the firmware update process looks for a file named "prepare.bin" and then loads it, which starts the automatic firmware update process.
While I'd rather try doing some sort of manual root on the tablet if possible, I'd be willing to try to make my own version of "prepare.bin" that will allow me to essentially hijack the firmware update process before it begins, which should essentially give me system-level control over the tablet.
...In theory, that is.
Do you think this would be a possibility?
I'd post pictures and screenshots and links and other information I've found, but I don't seem to have enough posts to do that yet...
edit- To be more direct, I'm willing to try to hijack the boot process to run my own code if possible, but I'd much rather do some sort of manual root or something if possible so I don't risk screwing up my tablet. As I said before, neither z4root nor Universal Androot work for my tablet, so I was wondering if there's some sort of manual exploit I can use to get in from within Android. If that's possible, I'd much rather take that approach as opposed to basically brute forcing my way into system-level access and risk bricking something.
Does anyone have any information on rooting the AZPEN A701 Tablet (ICS OS)?
All my searches keep popping up for the Acer Iconia A701.
drivers
I found the correct address for the drivers for this tablet, and 2 others from Azpen.
www.mediafire.com/azpensupport
The links on their webpage incorrectly spell mediafire and also include .com in the last part of the link.
Note: I recently got an email from Azpen telling me the exact same url that I had already figured out. Their email is about week to a week and a half after I sent them a request for the proper address. Also, as of the time I am posting this update, they have not corrected the address on their website.
Tried methods
I have tried SuperOneClick which reports that the system is rooted, but ADB Wireless says it is not.
I have tried Bin4ry's Root Many Android! (options 1, 3, and G) and briefly got temp root on option 3 but I lose wireless functionality (I get one or the other message from ADB Wireless (no root or no wireless), verified that Wireless connection has been turned off and won't turn back on until reboot which loses me the root again).
Retries
Ok, finally rooted the Azpen A701.
What I did:
First, I went back to SuperOneClick, and choose Unroot to reverse anything it did.
Retried Bin4ry's Root Many Android! v31, option 1 (new standard method), test, failed, unroot, 3 (old method), test, failed, unroot, then G (Google Glass method), test, WORKED this time.
Verified by using a root browser (can see files/folders(subdirectories) in /data after giving permission), a root checker (note: do not turn on SuperUser's Autoanswer, gives false information from some checkers), and ADB Wireless works while in range of a wireless router/source.
I am guessing that somehow the leftovers from SuperOneClick were affecting my results with Bin4ry's collected scripts.
Props to all that developed each of those programs and scripts.
I don't know if anyone will be seeing this but I hope it helps anyone needing the info.
Just curious to know if there is a rom available in case this method bricks the tablet? I bought this tablet a couple of weeks ago because I wanted to mess with one and I didn't have a lot of cash to spend. I use it daily and my kids play games on it. I can't afford to get another anytime soon, however I'd like to have it rooted so that I can remove factory installed apps that I don't want or need.
no idea
BizarreMan said:
Just curious to know if there is a rom available in case this method bricks the tablet? I bought this tablet a couple of weeks ago because I wanted to mess with one and I didn't have a lot of cash to spend. I use it daily and my kids play games on it. I can't afford to get another anytime soon, however I'd like to have it rooted so that I can remove factory installed apps that I don't want or need.
Click to expand...
Click to collapse
I have absolutely no idea. The only additional rom I have seen ANYWHERE is the Jellybean update for it (see driver link above). This seems to not be a very popular tablet to work with, going by the fact I received no help from anyone here. All research on this so far has been done by me. I stumbled on to Bin4ry's rooting method by accident. I'm not a ROMer, I don't know how to build one. Also I don't know which ROM backup method to use on it/will work with it.
Alright
I'll give it a shot during the weekend, I've grabbed the jelly bean update (thanks for the link). Hopefully all goes well. I figured there would be little to no support for this device, however due to a tight budget I chose to get this tablet.
I don't really mind the lack of support, however I'd like to have root because like on my old phone I had a few programs I used that required root.
Thanks again.
*Edit*
I attempted last night as I had free time to do the root method and unfortunately it did not work on my device. Not sure why it did not work. I'll try it again at a later time when I can. I also attempted to upgrade to 4.2 but it seems as though I am having issues with it as well.
Maybe I'm just stuck with the tablet as is
trying again...
BizarreMan said:
I'll give it a shot during the weekend, I've grabbed the jelly bean update (thanks for the link). Hopefully all goes well. I figured there would be little to no support for this device, however due to a tight budget I chose to get this tablet.
I don't really mind the lack of support, however I'd like to have root because like on my old phone I had a few programs I used that required root.
Thanks again.
*Edit*
I attempted last night as I had free time to do the root method and unfortunately it did not work on my device. Not sure why it did not work. I'll try it again at a later time when I can. I also attempted to upgrade to 4.2 but it seems as though I am having issues with it as well.
Maybe I'm just stuck with the tablet as is
Click to expand...
Click to collapse
It may have been the sequence I used. Tried SuperOneClick several times (as above it said tablet was rooted but several apps said it wasn't) which installed su, busybox, and superuser. Then found Bin4ry's method, got temp root (tryied 1, 3, and Glass). Then went back to SuperOneClick and unrooted, returned to Bin4ry's and finally got it with Glass method.
Don't know if that helps
Well
After several attempts via Bin4ry and SuperOneClick I have obtained root on this tablet.
Not quite sure which actually did it though as with super one click it froze on me during both times I used it and each time I tried Bin4ry's method I kept getting messages about connecting my device (which was connected fro the get go).
After several tries with these programs yesterday and finally saying screw it I decided to add some apps that required root. I don't know why I did it I just figured it was worth a shot. I added Super User which told me I was rooted, then I added Titanium Backup and was able to use it as it is intended. For added measure I also installed and ran root checker which as well as super user verified that the tablet had been rooted.
Good to see that your were able to root.
BizarreMan said:
After several attempts via Bin4ry and SuperOneClick I have obtained root on this tablet.
Not quite sure which actually did it though as with super one click it froze on me during both times I used it and each time I tried Bin4ry's method I kept getting messages about connecting my device (which was connected fro the get go).
After several tries with these programs yesterday and finally saying screw it I decided to add some apps that required root. I don't know why I did it I just figured it was worth a shot. I added Super User which told me I was rooted, then I added Titanium Backup and was able to use it as it is intended. For added measure I also installed and ran root checker which as well as super user verified that the tablet had been rooted.
Click to expand...
Click to collapse
So I think we can safely say that using both methods together + patience will root this tablet (don't know why one or the other wouldn't do it).
Not having any luck
CyberSpiderPrime said:
Does anyone have any information on rooting the AZPEN A701 Tablet (ICS OS)?
All my searches keep popping up for the Acer Iconia A701.
Click to expand...
Click to collapse
I have been trying to root AZPEN A701 for the past week, I have tried everything written on this forum. Any help PLEASE!
clean slate
Are you willing to do a full restart on the tablet (factory reset)? I had to do that before my root took, as I found on other systems that I have rooted some programs you load can interfer with rooting. Save any personal data before you do this, programs can be reinstalled from Google Play or (hopefully you saved them if you downloaded them) your computer
Factory reset:
Press and hold up volume button then press and hold power button. The screen will remain black (no backlight)
Wait 4 seconds then release both buttons (backlight will come on). Shortly the android on it's back with the open torso (the sick android) will be displayed.
Press the down volume button. You should see 5 options available- You are now in the System Recovery program.
Using the up or down volume button to highlight an option then press power to select the option.
1) select Wipe Cache Partition
let the unit reboot, then turn it completely off
reenter System Recovery again.
2) select Wipe data/factory reset
let the unit reboot, then turn it completely off
The system is as clean as it is going to get now.
On your pc (don't know for MAC's) download the drivers, Android programs needed (Android Debug Bridge -ADB- is part of the Android Development kit and some Java Development Kits), and both SuperOneClick and Bin4ry's root software. Install all software and drivers as per their instructions. Run SuperOneClick and Bin4ry's root programs. Busybox and SuperUser will be added automatically by these root programs.
While having wifi and internet access (McDonalds anyone?), re-sign up for Google Play (sorry, but the settings got wiped earler). Go to Google Play and let all the programs update. Update Busybox and SuperUser if needed/possible.
Download any root enabled file system browser (FSB) (permission will have to be granted in program to use root functions) - I used Ghost Commander for mine. It may take a bit to find it in the directory structure for the FSB you downloaded but you need to get to the root system folder.
Ghost Commander has a Local Storage option press it and an new list of folders/files will be displayed, move to the previous folder level (double dots at the top) and give permission to move to a system folder, move to the previous folder again to get to root directory, "/mnt" is the directory you just came out of and is highlighted but you will be at the root of the file system.
Enter the "/data" directory. If you can see files listed there, you have root; if not rooting attempt failed.
Once rooted, doing a system cleaning and Factory reset will not remove root but will remove SuperUser and Busybox (re-run one of the root programs to re-install then update the next time you are on the internet/web). Updating/upgrading the rom will remove root if the rom does not have root activated - I don't know of any custom roms for this tablet (there is a Jellybean upgrade in the Azpen website, if they haven't updated to the correct web address then use the one I listed on the front page, mediafire is spelled wrong in the address). Nandroid level system backup is not available yet for this tablet to my knowledge.
For several reasons, do not turn on SuperUser's automatically give permission option (the one that affects all programs), except on a one for one basis: 1) some root testing programs will fail if this option is turned on, 2) security: turning this on will allow ALL programs - including some malicious ones - to have super-user rights, 3) you will get to know which programs are asking for root permissions beforehand not after, you may want some to have automatic access (like DroidWall in my case, a firewall) and not others.
Also other information that can be useful:
/sdcard does not refer to the removeable SDCard but to the internal user data area. All programs that can be moved to a SDCard (like by Apps2SD) will be moved to this directory by default (some may allow re-assignment of the destination location) instead of the removeable SDCard (blame Azpen, it was their decision to use the directory and name that way). On most other systems /sdcard is the removeable SDCard.
/extsd is the removeable SDCard, when installed, maximum size is 32Gb.
/usbhost1 is for any usb flashdrive connected by a USB-OTG cable (OTG means On-The-Go, special usb cable that puts the tablet into host mode, similar to connecting a flashdrive to a computer, the cable is not a standard Data Connect/transfer cable, one USB-OTG comes with this tablet). Note about USB-OTG cables: if one is connected you can connect either a flashdrive, usb keyboard, usb mouse, combo keyboard/mouse unit, or a powered usb 2.0 hub. Only one flashdrive can be connected at a time (anyone know of downloadable software that would allow 2 or more? I know some modified kernels can allow more than one) so with a hub you can connect a flashdrive + keyboard + mouse (I use the RII wireless combo keyboard and mouse with mine). Maximum size appears to be 8GB, format must be FAT32; will be testing with a 16GB key shortly.
Azpen A701 and Jelly Bean
Shortly after I wrote the above I had to re-flash my tablet, but Azpen had deleted the ICS image (after a request it was restored to the site, get it while you can) and had to flash Jelly Bean. I found there were troubles with this image.
First: I could not write to either the external SDCard (called extsd) nor an attached USB flash key; reading was unaffected. I found this out when I attempted to reassign my backup location to the external sdcard and it was unable to create the directories.
Second: I couldn't find a rooting program.
After a little research, I found that the external media had not been given R/W permission in the platform.xml file - I could actually navigate the FS and read the file even without root.
Also I finally found after 2 days of searching a root program, VROOT, http://forum.xda-developers.com/showthread.php?t=2434453, that would work. Be prepared to deal with Chinese for a little bit and follow the instructions on that page (press the buttons to see screenshots). The superuser app needed to fix/replace the Chinese app is SuperSU (Google Play) which supposedly fixes problems found with other superuser apps. Once you have downloaded SuperSU, had it download/update its binaries and have rebooted, you will have to disable the Chinese Superuser app as you are unable to uninstall it using the app manager: I located it by its icon (shield with cog) in /system/app and appened '.old' to the name: "Superuser.apk" => "Superuser.apk.old'. I didn't use Titanium Backup as suggested because I am not a fan of the program .
platform.xml is located in /system/ext/permissions. After you have root, open platform.xml in what ever text processor you want locally or transfer it to your computer and work with it. You will have to add '<group gid="media_rw">' to the 'WRITE_EXTERNAL_STORAGE' group, on the line after '<group gid="sdcard_rw">' (don't type the single quotes but the double quotes are needed) and write the file back to its location (need root for that, adb pull/push may be possible to fix this). Remember on this tablet, sdcard refers to the internal user storage, media_rw will give permissions to the extsd (external sdcard) and USBHost1 (using included USB-OTG cable and a flash drive). I rebooted the tablet and tested the RW state of extsd, and voila, it now is write capable.
I wish there was more aid on this tablet but since it is not mainstream (not made by a big manufacturer like LG, Motorola, Samsung, etc.) I doubt that it is coming (I am not a ROMmer but have been using computers since the 80's, so I know a few tricks and am always learning). I will keep adding info as I find or fix it.
I will probably go back to ICS as some of my programs are not working right, and JB is sluggish.
I just picked up the A700 from Microcenter, and this is the ONLY reference to rooting the device I could find. The Azpen website doesn't even acknowledge the device's existence. I just came across this yesterday: Azpen A700 - Cyanogenmod forums. I used the Kingo method without a hitch.
Hopefully, all the other folks who get that tablet for the pre-Black Friday sale who found this link will benefit.
johncro13 said:
I just picked up the A700 from Microcenter, and this is the ONLY reference to rooting the device I could find. The Azpen website doesn't even acknowledge the device's existence. I just came across this yesterday: Azpen A700 - Cyanogenmod forums. I used the Kingo method without a hitch.
Hopefully, all the other folks who get that tablet for the pre-Black Friday sale who found this link will benefit.
Click to expand...
Click to collapse
I picked up this tablet also. Not bad for $40. I used this method to root http://www.cydiaimpactor.com/ It worked the first time. I just had to do it on an old XP machine. Windows 8 would not load the right android drivers. Now I'm working on getting Titanium backup to see my external SD card.
comstar said:
I picked up this tablet also. Not bad for $40. I used this method to root http://www.cydiaimpactor.com/ It worked the first time. I just had to do it on an old XP machine. Windows 8 would not load the right android drivers. Now I'm working on getting Titanium backup to see my external SD card.
Click to expand...
Click to collapse
I was going to return it as no rooting procedure would work....(I only bought it so I could have a android tab to fool with...i'm windows tablet all the way)...and once I tried out that rooter it worked...thanks alot for the info!
cheeb said:
I was going to return it as no rooting procedure would work....(I only bought it so I could have a android tab to fool with...i'm windows tablet all the way)...and once I tried out that rooter it worked...thanks alot for the info!
Click to expand...
Click to collapse
Glad it worked for you! I started this thread for the A700 http://forum.xda-developers.com/showthread.php?t=2532464 - No activity in it yet. But if you come across anything good post it over there.
Sent from my Transformer TF101 using XDA Premium HD app
Update
I am glad to see that others are taking an interest in this tablet.
I found 2 methods that worked and am glad that others are finding more.
Now if I can get the boot loader cracked I could finally make a nandroid copy and save myself 4+ hours restoring everything when it goes wonky. This has happened twice- OS partition fills up (and don't know why) and the device resets to near factory reset level (even some of the factory apps are missing) and won't install anything but the smallest of apps which are deleted on the next reboot; the only solution is to re-flash the tablet. Note that I have gone back to using ICS as JB has other problems (external media including its own sdcard partition is not rw enabled for one).