Cannot encrypt TPT after factory reset?! - Thinkpad Tablet General

I recently updated to 0089_US using CWM patched version & proceeded to perform the device encryption.
Everything went smoothly & the TPT performed as per normal.
However, three days ago, it suddenly started to act up & after a reboot, I started encountering a series of Force Close repeatedly on almost every other application I try to use.
Nothing I tried to do to recover from this problem resolved the problem.
As a last resort, I backed up all the data that I can access & performed a factory reset (Privacy | Factory reset).
After the factory reset, I setup my TPT & tried to perform the encryption again.
This is when I discovered that something is wrong.
I was not greeted with the usual dialogue that I encountered in the first successful encryption process.l
Instead, after confirming that I want to encrypt the tablet, all I get is a green android icon without any indication of any process going on in the background.
Pressing the Home button brings me back to the desktop minus the taskbar (Back, Home & Task switcher) at the bottom.
After the screen or screen lock timeout, the TPT will lock. Unlocking it will bring me back to the green android icon.
This is how it looks like:
Link to picture
This is how it should be if it was working normally:
Link to picture
I've already factory reset the TPT 3-4 times but each time, the situation is the same.
I've just tried reflashing 0089_US again & the situation has not changed.
Can someone advise me what is wrong here?
I've not placed any data back on my TPT at this point.
Please advise me as I need it to be encrypted.
Thanks!
Update: After reading this thread, I got the idea that if I can get my hands on a stock 0076_US NANDROID backup, perhaps I can get it back to the original state. My own NANDROID backups did not work because the data & system files did not successfully convert to .img files after the backup. I got an error that the CWM backup failed to generate the data backup because /sdcard/.android_secure cannot be found.
Konker
PS: I posted this at the Lenovo forum here but did not get any response.

Can I use CWM to restore system.img alone?
I'm wondering if its worth a try to restore a system.img to my TPT? I've since restored my data & apps using Titanium Backup.
I got a feeling that the system files are somehow not properly restored when performing the factory reset. Of course I would need a system.img file to restore so anyone who has a 0089_US system.img file to spare, I'll greatly appreciate it. Not sure if I'll lose root in the process.
Anyone with any clue as to what I'm facing, please point me in the right direction.
TIA!
Konker

Someone posted a nandroid for u in xda
Sent from my Galaxy Nexus using Tapatalk 2 Beta-4

Thanks!
ker2gsr said:
Someone posted a nandroid for u in xda
Click to expand...
Click to collapse
Thanks!
I just saw it & am downloading now as we speak.
Are there any issues I should be aware of in using this Nandroid backup to roll back to 0075_US on my updated 0089_US TPT?
Please advise me accordingly.
Konker

konker said:
Thanks!
I just saw it & am downloading now as we speak.
Are there any issues I should be aware of in using this Nandroid backup to roll back to 0075_US on my updated 0089_US TPT?
Please advise me accordingly.
Konker
Click to expand...
Click to collapse
I don't think so I've downgraded to my .75 nandroid from the cm9 port everything went ok
Sent from my Galaxy Nexus using Tapatalk

Related

Removing encryption on Galaxy Tab

I encrypted my 10.1 yesterday without thinking all the way though. I found out that I could no longer flash kernels while the tablet is encrypted, since the SD card is not accessible in CWR.
I've tried doing a factory reset on my tab and each time, it boots up like nothing happened. I've also tried removing the pin that I put on it and the option to remove it is grayed out.
Do any of you know of a way to do a full wipe on the 10.1? Or could I reflash it using ODIN?
Thanks in advance.
id like to know this as well
still nothing? im starting to think this is an easy fix that nobody has posted about yet
there has to be something that im missing
try post # 6 in the linked thread, restore with unmodified vanilla version image from second link provided in the post, after booting from fastboot into recovery with clockworkmod recovery img; pushing it into the device sd with adb commandline, check the post for modifications and the link for details.
http://forum.xda-developers.com/showthread.php?t=1161325
whenever i try to reset to factory defaults, it just reboots like nothing happened
re-flash a stock firmware via odin as tar or fastboot/nandroid as img (backup restore)
Ones the tab is encrypted, there's no way to un do it. Unless you do what mughalgxt suggested. Good luck
Thanks guys, I went through some of these steps and found some other good tutorials to get me back up and running. All i wanted was to try the new kernel/bonsai rom out and I'm now able to do that
**** encryption, put a lockscreen password and be done with it.
I'm still struggling with this, as well: off to read some of the linked threads, because even with flashing a stock image with ODIN I'm still not able to recover the device. At least I managed to proceed past the boot loop I WAS in (when attempting to flash from CWM) - but now, I can get to the point where the device prompts me for the decryption key (meaning, it's clearly not yet restored to factory defaults) - but can't get it boot to completion. I also note that I've still got CWM Recovery, not stock.
It seems, at some point, encryption-key be damned, right? Meaning, if I don't care about recovering the contents of the encrypted partition - surely these low-level tools have the ability to simply format the partitions? Perhaps not - at least, not CWM - as attempts to format /data continue to fail.
Off to review the linked threads to try to gain some additional insight.
I ran into this same issue a long while back. As I recall (and it's been a while), you won't be able to wipe from CWM, but you can wipe from Settings / Privacy / Factory Data Reset. I could be wrong, but I know that I didn't have to do any adb pushing or anything with special images.
Hi SacTilt-
Thanks for the reply - and agreed: Had I actively started the effort from a functioning device, I think I could have selected that option.
As it turns out - I ran CWM, rebooted into recovery, and... next thing I knew, I was in boot loop hell.
I've tried flashing a variety of files via ODIN: Some at least allow the device to boot to the point where I get the initial password prompt - which I can provide, and proceed past... but then the device just 'goes blank'.
What I'm looking for is a 'start-from-scratch', no concern for data loss, delete the dang encrypted /data folder already, will ya?... approach.
As I've mentioned, a variety of ODIN files from a myriad of sources haven't seemed to quite do the trick. I feel like I'm missing something obvious - but can't find the right angle to spot it.
Perhaps fastboot might be what I'm looking for?
FWIW: the device was rooted when I started, so I've got full Titanium backups, with which I can restore, once I recover the actual device / OS.
Thanks for any insight.
Hey guys...if anybody finds a solution to this, please let me know...I am stuck with this same damn experimental ROM I've had from day one...it's getting really old. All I want is to get rid of this stupid encryption. Thanks for any help. Tried ODIN flashing, wiping data from security screen, wiping from CMR, etc.
Have you tried formatting the sd? Whenever i had my ns4g i accidentially did the same thing and i wiped the SD and it removed the encryption.
Sent from my GT-P7510 using XDA Premium HD app

Build number says "Acer_A500_4.010." only

I've been bouncing around to different kernels lately, but decided to restore to my stock backup. Now when I look at the build number, it just shows "Acer_A500_4.010." When I try to check for system updates, I get "Network coverage is currently poor. Please move to a location with better coverage to continue". I've even gone back as far as my original backup I performed immediately after my original root.
My build.prop file shows Acer_A500_4.010.01_COM_GEN2. Not sure why it isn't showing up correctly in the Status window. I'm currently downloading the update.zip for 4.010.01_COM_GEN2 and will attempt to push that. Hopefully that will fix things up. Anyone have any ideas on how I got into this state?
Downloaded the "Acer_A500_4.010.10_COM_GEN2" from this link http://forum.xda-developers.com/showthread.php?t=1113878. After flashing that, restoring default recovery image and un-rooting, I was able to do an OTA and got Acer_A500_4.010.13_COM_GEN2.
Looks like everything is OK now, but I'm still curious as to how I got in that state in the first place.
Your flexrom partition did not restore.
Sent from my A500 using Tapatalk
Euclid's Brother said:
Your flexrom partition did not restore.
Sent from my A500 using Tapatalk
Click to expand...
Click to collapse
Ok, that makes sense. Do I need to go back and do another restore and force the flexrom partition, or am I ok with what i've done?

Return to stock for warranty service

What's the best way to return my P7510 to unrooted stock? I have to send it in for repair.
Sent from my Nexus S 4G using Tapatalk
http://forum.xda-developers.com/showthread.php?t=1474971
Ty I was mobile, just found the link
Sent from my Nexus S 4G using Tapatalk
I've pored over the linked thread, and literally DOZENS other, here...
I think the one factor that may be causing me troubles is that my device was (IS) encrypted. It was also rooted, and had CWM installed, etc. Alas, I tried to boot into recovery, to take a nandroid backup in preparation for doing a factory reset (trying to do some additional testing / analysis around encryption, and its impacts on rooting / device management in a corporate environment).
That's when Bad Things started. First, it was a boot loop. I put it in Download mode, and used ODIN to flash both the CWM (first) and then stock recovery - but in no case can I get the device into recovery mode. When selected, the screen just goes black...
I haven't yet tried nvflash - and I'm wondering if that might be the tool for the job, since ODIN seems unable to influence the encrypted /data partition.
No concerns for data loss - I have a full Titanium backup ready and waiting if I can just get the thing to reboot...
Thanks in advance for any insight / guidance!
SnoWake4Me said:
I've pored over the linked thread, and literally DOZENS other, here...
I think the one factor that may be causing me troubles is that my device was (IS) encrypted. It was also rooted, and had CWM installed, etc. Alas, I tried to boot into recovery, to take a nandroid backup in preparation for doing a factory reset (trying to do some additional testing / analysis around encryption, and its impacts on rooting / device management in a corporate environment).
That's when Bad Things started. First, it was a boot loop. I put it in Download mode, and used ODIN to flash both the CWM (first) and then stock recovery - but in no case can I get the device into recovery mode. When selected, the screen just goes black...
I haven't yet tried nvflash - and I'm wondering if that might be the tool for the job, since ODIN seems unable to influence the encrypted /data partition.
No concerns for data loss - I have a full Titanium backup ready and waiting if I can just get the thing to reboot...
Thanks in advance for any insight / guidance!
Click to expand...
Click to collapse
If you have your Titanium backup copied to your computer, then you can restock the entire tab using ODIN(follow the unrooting instructions in the above linked thread). Then copy back the Titanium backup and you should be good to go again
One would think. Alas, Odin seems to choke on the encrypted partition - doesn't seem to be able to restore /overwrite the filesystem.
I finally caved and just sent it back, and had Verizon send me another.
Sent from my SCH-I905 using XDA
petcojunkie said:
What's the best way to return my P7510 to unrooted stock? I have to send it in for repair.
Sent from my Nexus S 4G using Tapatalk
Click to expand...
Click to collapse
or you can try the one click unroot apk in this link http://forum.xda-developers.com/showthread.php?t=1538173

Formatted /System, Help!

Hey all,
I was trying to get OTA2 installed while retaining my root and long story short I ended up formatting my /system in CWM thinking it would rebuild the factory image. Now of coarse my system won't boot. For some reason I am also unable to mount /sdcard. Is there anyway I could restore my system?
Thanks for any help!
restore \system of your CWM backup
I don't have a CWM backup . I know, a real bonehead move. If anyone could help me out with a clean CWM backup I'd be willing to compensate.
Edit: BTW I have a 16gb US version of the TPT.
Is it even possible to flash someone else's CWM backup?
Could I use the full image that Lenovo took down, found here?
I don't suppose there's an nvflash image for this device...
While I'm not sure, it might be possible to use that full image. Certainly worth a try. You might try asking on that forum, if you haven't already.
Yes, It is possible to restore from someone else's backup. I, in the past have copied my backups to my pc when they were too much and If i needed them, I just copied them back to external_sd/clockworkmod/backup/ and voila, it would appear for restoration in CWM.
I may be wrong, I do not believe that region should have any effect but to be safe (since you already made one mistake ) restore your US version with a US backup. I have a UK version and I would have uploaded a backup for you if you couldn't find a US one but unfortunately, my tablet is at the lenovo repair centre, being treated for the dreaded micro usb port failure. Hope someone here can help with a backup.
Thanks for the advice!
I downloaded that full image, but I could not get it to flash in the traditional sense. I extracted it and copied the system directory to my system partition and the tablet actually boots now. However, wifi does not work, whenever I press any of the menu keys a red frame flashes around the screen, and I cannot go to the About section of the settings to try to download updates or anything, it just crashes. I am also unable to update to OTA1 via zip in CWM, it gives me:
Code:
assert failed: file_getprop("/system/build.prop", "ro.buildfingerprint") == "Lenovo/ThinkPadTablet/Indigo:3.1/ThinkPadTablet_A310_02/0024_0065_US:user/releasekeys" || file_getprop("/system/build.prop","ro.build.fingerprint") == "Lenovo/ThinkPadTablet/Indigo:3.1/ThinkPadTablet_A310_02/0037_0075_US:user/release-keys"
Since you still need a lot of help anyway why don't you try manually installing all of the updates up to OTA 0076. You have to have all the updates before it flashed first. Link here:
http://download.lenovo.com/slates/think/tablet1
The nandroid backup would have to be of a factory restore, correct? Otherwise, all accounts/settings, etc would be within the backup as well.
I wasn't planning on doing a factory restore any time soon, but if the CM9 ICS port releases is soon, I can make one then as I have the same model and region as you.
I'm just really busy at the moment due to school and I rely on my tablet for school!
That would be the only safe way to let someone have a backup.
toenail_flicker, Thanks for the suggestion, I'll start from the top of the list and work my way down.
obscure.detour, being a student also, I completely understand. Luckily I just bought a Livescribe pen to offset my need for my TPT for the moment .
In the mean time, in case anyone else would be willing, you could also take a backup of your current system, do a factory restore, take a backup of the clean rom, and than restore your original image.
Thanks!
LOL You make it sound easy, but for a CWM noob it's a dicey thing. Never restored anything. Perhaps someone with more confidence in CWM than me can pull it off for you.
I know letting someone have a backup that contains personal info my be tricky, but if you've got time (couple of hours) on your hands you can backup your current system, do a factory reset, and since a factory reset only affects data, it wont wipe your root or CWM. you can then make a CWM backup of the newly reset rom, copy it off the sd card and restore your earlier system which you backed up.
This would save the OP having to start installing the OTA updates one by one.
Like I said, my tablet is away for repairs, otherwise I would have helped him. Or, maybe that's a good thing cos its certain that my tablet's main board will be changed, thus its going to be a fresh android installation on it. when I receive it in a couple of days, if you're still in need, I'll try to reroot and install CWM so I can send you a backup.
Much appreciated darkhandsome18! Installing the OTA's failed . It looks like the image I found is actually a test build. Even the earliest patches do not recognize it as a viable base to install on.
Did you ever get someone's backup? If not I can make one for you today. I am on OTA2 though, were you updated before you wiped system?
Here is a CWM backup from my 32GB US TpT.
Extract the file onto your external sd card in the folder /clockworkmod/backup/
Reboot into CWR
Select Restore Backup and select my backup (You can use advanced backup to restore individual parts or just the normal restore to restore everything, which will be factory reset US OTA2 with root)
Hopefully everything will work properly and you will never format your system partition without a nandroid backup again.
I have it on my Dropbox for now but will delete it in a couple of days because it takes up a lot of space. Let me know once you have downloaded it.
If you don't have a Dropbox account then sign up here and we'll both get an extra 250MB of storage space.
jhankinson, thanks! I was not on OTA2, would that be a problem? Also, I'm having issues backing up my current setup, I got ICS running. CWR gives me "Error while backing up boot image". Any ideas?
I'd like to backup my current (semi-working) setup before attempting to restore yours. Thanks again for uploading that!
I finally got it to work by remounting my sdcard in rw using ADB in clockwork recovery. That backup seems to have worked flawlessly jhankinson, I can't thank you enough!
This is great news! I knew I couldn't help you, but so glad GodfatherIP was able to help you. He helped me a great deal, too, recently.
Who is GodfatherIP?

[Q] Nandroid backup for ThinkPadTablet_A310_02_0037_0075_US_CWR

Does anyone happen to have a nandroid backup for ThinkPadTablet_A310_02_0037_0075_US?
I'm confused - your thread title requests a different backup than the message.
I may have the 0075 in my backups, I'll look and see.
Wow just noticed that I did that. I'm looking for the 0075 nandroid backup. MANY thanks in advance if you happen to have one.
dwilli40 said:
Wow just noticed that I did that. I'm looking for the 0075 nandroid backup. MANY thanks in advance if you happen to have one.
Click to expand...
Click to collapse
I have one but there are issues with the build.prop plus some personal info in there
Sent from my Galaxy Nexus using Tapatalk 2 Beta-4
Clean, fresh and rooted nandroid image of 0075
Dwilli40,
Factory reset 0075 US rooted Nandroid -- built it for you last night.
No-Bloat: http://www.diginous.com/no_bloat_0075_US_root_NANDROID.zip
Extract to SD-card, use CWR to restore.
From a 32gb TPT. Cheers!
pwstein said:
Dwilli40,
Factory reset 0075 US rooted Android -- built it for you last night.
Couldn't upload to everyrandom.com from the tablet so it is here:
http://aksenate.org/clean_0075_US_root_NANDROID.zip 550mb, extract to SD-card, use CWR to restore.
From a 32gb TPT. Cheers!
Click to expand...
Click to collapse
Hell if this don't help him it definitely helps me thank u
Sent from my Galaxy Nexus using Tapatalk 2 Beta-4
cool ker2gsr! Happy to help. I was thinking about building another nandroid of 0075 without Lenovo bloatware. I'm guessing both types of backups might be useful in the long run.
Dwilli40 - could you edit the thread title to reflect your request for 0075? It may help others to find a solution if they are in similar straights.
pwstein said:
cool ker2gsr! Happy to help. I was thinking about building another nandroid of 0075 without Lenovo bloatware. I'm guessing both types of backups might be useful in the long run.
Dwilli40 - could you edit the thread title to reflect your request for 0075? It may help others to find a solution if they are in similar straights.
Click to expand...
Click to collapse
All I needed was a build.prop lol but its good to have just in case since there is no actual system .img out there
Sent from my Galaxy Nexus using Tapatalk
Thank you very much pwstein. I have edit the title as you guys requested.
Just what I'm looking for!
pwstein said:
Dwilli40,
Factory reset 0075 US rooted Nandroid -- built it for you last night.
Couldn't upload to everyrandom.com from the tablet so it is here:
http://aksenate.org/clean_0075_US_root_NANDROID.zip 550mb, extract to SD-card, use CWR to restore.
From a 32gb TPT. Cheers!
Click to expand...
Click to collapse
pwstein,
Thank you so much for this Nandroid backup!
This is exactly what I need to get my TPT back to being able to run encryption.
My current ROM has been updated to 0089_US.
Are there any issues I should be aware of in using this Nandroid backup to roll back to 0075?
Please advise me accordingly.
Thanks!
Konker
Konker,
No issues to speak of. It is a factory reset, booted through startup without wifi, no account info provided, Lenovo standard bloatware, and no customization. SuperUser is already installed and active. The backup folder was renamed and then added to a zip file.
My tablet has a Gobi3000 wwan card installed, otherwise a standard 1838 with 32gb storage.
I hope it helps anyone who didn't get a backup made before upgrading.
Unzip file to sd-card /clockworkmod/backup/
Put sd-card in tablet
Shut down, boot to CWR, (make your own backup), restore to 0075
Enjoy
I keep getting a MD5 checksum error. I have tried to re-downloading several times but still getting the error. Any ideas on how to fix this?
Try from the uploads I put on everyrandom.com today. The previously linked one was uploaded (550MB) on 3G cell service, likely screwing it up somehow.
edit: everyrandom.com/files wasn't serving the files correctly. They have been removed.
See thread: http://forum.xda-developers.com/showthread.php?t=1566508
dwilli40 said:
I keep getting a MD5 checksum error. I have tried to re-downloading several times but still getting the error. Any ideas on how to fix this?
Click to expand...
Click to collapse
I was also so I installed the second CWM version about half way through that thread, and the restore went smooth.
Whoa, I just realized I never installed the improved CWR port. Mine is the original CWR that was offered up on the first day of Root. I should remember that because I ALWAYS pull my SD-Card out before performing factory resets. I heard the CWR update fixed that...
I'll note that in my Nandroid post. Thanks for the heads up.
I figured out what was going on. I guess when I extracted the files, it put the files in a sub folder with the name as the original folder.
I tried to download from the other post also, but it was like the files had been removed from the site.
rangercaptain said:
I was also so I installed the second CWM version about half way through that thread, and the restore went smooth.
Click to expand...
Click to collapse
Where can I find the supposed updated CWM port? I cannot find it in this thread nor anywhere related to the TPT.
Please advise me.
Thanks!
I fixed it to a direct download link for the no bloat nandroid.
0075 US clean, rooted Nandroid
konker said:
Where can I find the supposed updated CWM port? I cannot find it in this thread nor anywhere related to the TPT.
Please advise me.
Thanks!
Click to expand...
Click to collapse
See this post
Device specific files. Same instrutions as in the OP.
rangercaptain said:
See this post
Device specific files. Same instrutions as in the OP.
Click to expand...
Click to collapse
Thanks for the link!
I updated the CWM on my TPT with this version & I discovered that the recovery console is not as stable.
No long after I reboot into CWM recovery, perhaps about 10 secs, my TPT rebooted itself.
Has anyone observed this behavior?
I'm going to try download again & see how it goes.
Konker

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