[Q] Mount encrypted sdcard via TWRP/adb shell - Nexus 4 Q&A, Help & Troubleshooting

Hi XDA,
Hoping you can help as you're my last hope really.
Nexus 4
CM 11
TWRP 2.6.3.3
I dropped my Nexus 4 and smashed the screen. Everything works as normal except the screen lower half (where the keyboard is..)
So I can boot into TWRP but cannot enter my decryption password to mount the storage, I can however open an adb shell and work from there.
Im trying to determine if its possible to mount the sdcard and enter the decryption password via the shell so i can retrieve important files. So far it doesn't look like busybox has the functionality to do it but maybe im wrong and just need guidance.
pls halp

Hi,
I have the same problem. Were you able to provide the password via adb?
"adb shell input" seems not to work as the binary is missing
Thanks!

Related

[q] urgent help is needed, too many pattern attempts

Hi, i need a fix for this and fast !!! I've tried all that is listed on xda about this issue, but to no avail. Anyway, i forgot my pattern and went to the forgot pattern menu. My wifi was off, so i figured it would give a prompt of some kind to turn on the wifi and then log on to my google account. But nooooo, google supposes that everyone's wifi is on all the time. Please help, what do i do ? I rebooted to recovery, i made a nandroid and currently i am adb pulling the twrp folder from my N7. I would have just factory reseted it, no probs, but i remembered i have some EXTREMELY important works in colornote that i can't afford to lose. Please help, what do i do ?????
Looks like you answered your own question. Unless your Android isn't encrypted, just boot into TWRP and backup your data using adb:
adb pull /data/data C:\backup
Click to expand...
Click to collapse
The main thing you will have to concern about is restoring those data and make it readable by the app. There are several ways, but you can either:
adb push C:\backup\colornotes /data/data/colornotes
Click to expand...
Click to collapse
Don't forget some devices you need to give it write permission first: adb remount rw, though should not be needed with TWRP. Or just copy the folder back using a rooted file manager.
Then go into adb shell and fix permission of the files so the app can get access to them:
adb shell
su - (again shouldn't be needed wile in TWRP)
chmod -R 644 /data/data/colornotes (or 777 for full access)
Click to expand...
Click to collapse
Tips while in adb shell:
Check permissions of files by typing: ls -la
Check what partition is mounted and whether you have write privilege to it by typing: cat /etc/fstab
Also, if you use a custom rom like CyanogenMod or AOKP, there is an option to enable all widgets on the lockscreen. Just put the Power Control widget on the lockscreen, then you can toggle WiFi on and off. (Can't remember if this is also possible with stock.)
Have fun.
OR have a look here.
Looks like either of the two methods suggested would be feasible with only a recovery running, but the 2nd one is easiest (as a custom recovery wouldn't necessarily provide a statically-linked sqlite3 utility).
if it works it doesn't require any wiping.
BTW guess how I found this.... wait for it .... wait for it.... wait for it.... I used google search.
Hi, i forgot to mention that i made the twrp backup while i was locked out and whenever i try to restore from the backup after a factory reset, it goes back to square one... And when i did a full wipe and hoped to use titanium backup to extract stuff from the nandroid, it just gives me and empty list, but the backup is there, all 5gb of it
iAndroidOS said:
Hi, i forgot to mention that i made the twrp backup while i was locked out and whenever i try to restore from the backup after a factory reset, it goes back to square one...
Click to expand...
Click to collapse
Well, that is to be expected, is it not? You are restoring exactly what is already there - effectively a no-op.
OK, I just booted into TWRP (2.4.1.0) and confirmed that the (equivalent of the) following disabled my pattern lock on the next boot:
cd /data/system
mkdir foo
mv locksettings.* foo
mv gesture.key foo
I did all of the above (the 'cd' command is implicit) using TWRPs touch interface - didn't even need adb.
ymmv as I am using jdq39/4.2.2 and my tablet was not in a "locked-out" state, but its an easy thing to try.

Cracked screen- no touch. ADB unauthorized - how to pull nandroid backup?

I sadly dropped my nexus 4 on hard tiles yesterday face down and the whole front cracked everywhere! The phone still turns on, I can copy internal storage off fine, but since the touchscreen doesn't work anymore I'm having trouble with getting system data off e.g. sms.
I've managed to get non touch CWM installed, made a nandroid, but now I can't copy the damn thing off! ADB gives me unauthorised for every command, and obviously I can't use the phone to authorise my PC. Am I now essentially screwed? Been googling for ages and can't find a way round the fact I can't use ADB or force my phone to authorise my PC without using the screen.
Any other ideas would be massively appreciated. The phone is rooted, CM10.2, and luckily usb debugging is enabled.
Cheers!!
You said you can copy internal storage right? so why not pull the nandroid from /clockworkmod/backup?
Sent from my Nexus 4 using Tapatalk 4
I do not use CWM, but I do use TWRP and it allow me to access to the /data and /sdcard partition just fine, /system is off limit though. I don't know where your nandroid is backed up in, but I assume its in /sdcard.
Try this: Flash TWRP in fastboot mode, then press the volume button either up or down twice, then press Power to access the recovery. Then on the main menu of TWRP, you can do adb commands right away.
I can then simply back up my whole /sdcard partition by: adb pull /sdcard/ C:\backup
Or backup the all the apps data: adb pull /data/data/ C:\backup
Thank you both for the advice. I've tried using adb in recovery, but it says: remote object '/sdcard' is not a file or directory.
If I type adb devices, I get my phone ID along with 'recovery' next to as expected.
Any ideas?
Thanks.
EDIT: Ignore this, just added a / after /sdcard and now its pulling ok. Thanks so much!
I was typing this up before I read your edit:
If you don't know where certain files are, you can type "adb shell" to enter the phone itself, there you can look at the phone directory structure and find where your files are located.
Use the cd and ls commands to navigate in the phone: http://afrodita.rcub.bg.ac.rs/~ivica/nlm/part1/cd_ls.html
Once you're done, type "exit" to get out of adb shell. Then you can use the "adb pull" command to copy the files.

[Q] Broke Screen, Want to Backup files

Hi,
So today the front of my Nexus 4 cracked and rendered it completely dysfunctional. The worst part is that there's a screen lock, making it impossible for me to access through Android File Transfer. I was reading that you could use adb and screencast to access the phone and to unlock it, allowing for me to retrieve files. But after installing and running commands, it seemed like I couldn't find a device when I inputted the command 'adb devices'. I know, I searched it up and I think the reason is that usb debugging was not enabled (I don't remember if I did or didn't enable it at all). I've read past threads which explain how to enable it even with a cracked screen but I'm just too confused on how to do it. All this SDK and AVD stuff confuses the heck out of me (I'm fairly new to the whole Android notion) so I practically have the IQ of a 5 year old. My phone is rooted (In which it did wipe the memory so that may be why debugging could be off) and I'm currently flashing Cyanogenmod. Could someone please explain to me how do I enable debugging with a dysfunctional screen like I'm 5? Also, if there were an easier alternative to retrieving/backing up my files that would be nice knowing too because all of this stuff is currently doing my head in.
Thanks!
You can try to access adb from recovery too.
Turn off phone and start by holding VOL-DOWN and POWER together. You will boot into BOOTLOADER mode and there switch to RECOVERY MODE by VOLUME button (2 times press is this mode). If you have installed CyanogenMOD, then you have probably advanced recovery (CWM or TWRP). Now try command "adb devices".
If you haven't CWM or TWRP recovery installed, boot again into BOOTLOADER mode and flash recovery by fastboot.
xjcook said:
You can try to access adb from recovery too.
Turn off phone and start by holding VOL-DOWN and POWER together. You will boot into BOOTLOADER mode and there switch to RECOVERY MODE by VOLUME button (2 times press is this mode). If you have installed CyanogenMOD, then you have probably advanced recovery (CWM or TWRP). Now try command "adb devices".
If you haven't CWM or TWRP recovery installed, boot again into BOOTLOADER mode and flash recovery by fastboot.
Click to expand...
Click to collapse
Thanks for the quick reply,
After I hit advanced recovery and selecting my backup, which option do I press? Do I restore the boot, system, data, cache, or sd-ext?
Also typing in adb devices only lists the recovery device and I don't seem to be able to access it through Android File Transfer, what do I do with the serial number it tells me?
By the way I don't have any backups when I had no screen pattern so wouldn't recovering those areas still give get me locked out?
loolnicetry said:
Thanks for the quick reply,
After I hit advanced recovery and selecting my backup, which option do I press? Do I restore the boot, system, data, cache, or sd-ext?
Also typing in adb devices only lists the recovery device and I don't seem to be able to access it through Android File Transfer, what do I do with the serial number it tells me?
By the way I don't have any backups when I had no screen pattern so wouldn't recovering those areas still give get me locked out?
Click to expand...
Click to collapse
Android File Transfer is not working in recovery mode, but you can pull required files by "adb pull /sdcard/some-file-or-folder/ /to/some/path/on/your-system/". Of course you can pull whole /sdcard/. You can try also adb backup (I didn't try it yet). From recovery you can also make nandroid backup of the system and transfer to computer by adb pull.
In recovery mode you have access to full system (maybe you must mount some partitions), that means you can use magic command "adb shell", to get shell (in shell you can use "ls" for list files, "cd" for change directory) and do what you want. To remove screen lock try some guide from XDA, I've found for example [GUIDE][HOW-TO]Crack android pattern lock! or [EASIEST]Crack Android Pattern/Pin/Password Lockscreen without root.
I hope this will help you.
xjcook said:
Android File Transfer is not working in recovery mode, but you can pull required files by "adb pull /sdcard/some-file-or-folder/ /to/some/path/on/your-system/". Of course you can pull whole /sdcard/. You can try also adb backup (I didn't try it yet). From recovery you can also make nandroid backup of the system and transfer to computer by adb pull.
In recovery mode you have access to full system (maybe you must mount some partitions), that means you can use magic command "adb shell", to get shell (in shell you can use "ls" for list files, "cd" for change directory) and do what you want. To remove screen lock try some guide from XDA, I've found for example [GUIDE][HOW-TO]Crack android pattern lock! or [EASIEST]Crack Android Pattern/Pin/Password Lockscreen without root.
I hope this will help you.
Click to expand...
Click to collapse
I CANNOT THANK YOU ENOUGH! You were easy to understand and got straight to the point which was perfect! On a side note, do you know if there's a way I can extract and save my sms messages and read them on my computer? I know I can take out the .db file but it's complicated to open on a Mac and it's quite an effort. (Considering my phone still has a lock on it)
loolnicetry said:
I CANNOT THANK YOU ENOUGH! You were easy to understand and got straight to the point which was perfect! On a side note, do you know if there's a way I can extract and save my sms messages and read them on my computer? I know I can take out the .db file but it's complicated to open on a Mac and it's quite an effort. (Considering my phone still has a lock on it)
Click to expand...
Click to collapse
I'm really happy that I helped you!
Android is storing messages, contacts in SQLite database, there is not another way to grab these files from recovery. But it's not complicated to extract these files. Download for Mac OS X sqlite-shell-osx-x86-XXX.zip from SQLite Download Page and extract it somewhere.
Then pull messages by
Code:
cd /path/where/is/extracted-sqlite
adb pull /data/data/com.android.providers.telephony/databases/mmssms.db .
Finally you can list your messages by
Code:
./sqlite3 mmssms.db 'select address,body from sms'
If last command is not working try make it executable and repeat previous step
Code:
chmod +x sqlite3
xjcook said:
I'm really happy that I helped you!
Android is storing messages, contacts in SQLite database, there is not another way to grab these files from recovery. But it's not complicated to extract these files. Download for Mac OS X sqlite-shell-osx-x86-XXX.zip from and extract it somewhere.
Then pull messages by
Code:
cd /path/where/is/extracted-sqlite
adb pull /data/data/com.android.providers.telephony/databases/mmssms.db .
Finally you can list your messages by
Code:
./sqlite3 mmssms.db 'select address,body from sms'
If last command is not working try make it executable and repeat previous step
Code:
chmod +x sqlite3
Click to expand...
Click to collapse
For the pulling of the .db file, it says the remote object does not exist, what should I do?
loolnicetry said:
For the pulling of the .db file, it says the remote object does not exist, what should I do?
Click to expand...
Click to collapse
Hmm that is strange, maybe this will help you (especially check first answer): http://stackoverflow.com/questions/12266374/backup-full-sms-mms-contents-via-adb
Sent from my Nexus 4 using Tapatalk
xjcook said:
Hmm that is strange, maybe this will help you (especially check first answer):
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
When I try to enter the $mkdir command it says it's not found. Am I meant to include the $ in the command?
xjcook said:
Hmm that is strange, maybe this will help you (especially check first answer): http://stackoverflow.com/questions/12266374/backup-full-sms-mms-contents-via-adb
Sent from my Nexus 4 using Tapatalk
Click to expand...
Click to collapse
I FIXED IT MYSELF! I'm feeling a bit smart haha, it turns out my system and data wasn't mounted and all I had to do was mount it through cwm. Thanks a lot friend you were a great help, I'd be panicking a substantial amount without you!

[Q] No adb shell access after flashing stock 4.3

Hi All,
I have updated my GS4 (I9500) from 4.2.2 to stock 4.3 (JSS15J.I9500XXUEMJ9)
All went well, I've rooted it with FC-Auto-root and that went well as well.
My problem is that I don't have adb shell access. I get permission denied every time.
I've started looking and got to the conclusion it is Samsung Knox. So I've upgraded SuperSu to the newest version (that should support Knox issues). When that didn't worked, I've installed Titanium backup and deleted all Knox apps but that didn't solve the issue.
I tried to wipe and restore factory through recovery mode, rooted it again using cwm but still, no shell access (some adb pull and adb push). I tried to run adb root, adb remount but nothing solved the issue.
The weird thing is, that for the first 2 minutes after rebooting the device, I do get adb shell access, but then suddenly the device is like 'reconnecting' and I get kicked out of the device's shell and get permission denied.
Can someone please advice? I tried looking in this forum, I seriously searched all google and couldn't find a solution.. I can't work with it without adb shell.
Thanks!
please help
cheniro said:
Hi All,
I have updated my GS4 (I9500) from 4.2.2 to stock 4.3 (JSS15J.I9500XXUEMJ9)
All went well, I've rooted it with FC-Auto-root and that went well as well.
My problem is that I don't have adb shell access. I get permission denied every time.
I've started looking and got to the conclusion it is Samsung Knox. So I've upgraded SuperSu to the newest version (that should support Knox issues). When that didn't worked, I've installed Titanium backup and deleted all Knox apps but that didn't solve the issue.
I tried to wipe and restore factory through recovery mode, rooted it again using cwm but still, no shell access (some adb pull and adb push). I tried to run adb root, adb remount but nothing solved the issue.
The weird thing is, that for the first 2 minutes after rebooting the device, I do get adb shell access, but then suddenly the device is like 'reconnecting' and I get kicked out of the device's shell and get permission denied.
Can someone please advice? I tried looking in this forum, I seriously searched all google and couldn't find a solution.. I can't work with it without adb shell.
Thanks!
Click to expand...
Click to collapse
anyone? help.. I really don't know what to do..
Thanks.
cheniro said:
anyone? help.. I really don't know what to do..
Thanks.
Click to expand...
Click to collapse
Phone setting > more > about device > Click build number 5/7 times until you see android developer sign , then press go back Developer option > turn it on on top and tick USB debugging. Open supersu app ,check if there's adb or something, click and choose Grant then save.
Didn't solve
Repulsa said:
Phone setting > more > about device > Click build number 5/7 times until you see android developer sign , then press go back Developer option > turn it on on top and tick USB debugging. Open supersu app ,check if there's adb or something, click and choose Grant then save.
Click to expand...
Click to collapse
USB debugging was on. SuperSU don't show adb as authorized apps..
In one of my tries I managed to get SuperSU to ask me to grant permission to adb, and I did. But this didn't help much as well..
I'm lost...
use this adb file. Unpack to dvire C:/ and when you do it this use this command in Cmd :
cd..
cd..
And now you have this in Cmd and write this
C:/> ( write this ) adb shell ( enter )
[email protected]:/ $ ( write this ) su (enter ) and accept on your phone supersu
Link to Adb on Zippyshare ---> http://www70.zippyshare.com/v/73912608/file.html

How do I adb pull root directories (like "/" or "/system"?)

Hi there, I'm trying to pull root directories like /system and /data without any luck. My purpose it to have them on my PC as a backup, and be able to browse them to pull out apps and pieces of data as necessary if it ever becomes necessary.
Device: Nexus 6P (North American version)
ROM: Stock 6.0.1 Rooted, using Wugfresh Nexus Root Toolkit and SuperSU
PC OS: Windows 7 PC (64 bit)
Adb is working properly and I can easily pull non-root directories like "/sdcard" and so on. I'd like to be able to backup the entire root directory ("/") or at least the child directories (like "/system" and "/data", etc.) Unfortunately, when I try
Code:
adb pull -p "/system" "C:\somewhere"
it skips a bunch of files, so I need to come up with a better method.
I've tried
Code:
adb root
and it tells me it's already running in root mode.
I try
Code:
adb remount
and it does this properly, but doesn't change the effects of all the commands I've tried.
When I run
Code:
adb shell
it enters shell and gives me # by default, so seemingly it is giving me su permission by default?
*** Oddly, when I enter "su" while in shell, it tells me "/sbin/sh: su: not found" which seems odd to me. I think it's possibly that SuperSU is installed as systemless root, or there's something else screwy here, so I guess I'm not sure how to proceed. Still, if that were case, why would adb already be running as root, and why would shell automatically give me the #?
Any help is appreciated!!
Thanks!
@Heisenberg I figured I'd tag you because of your extensive experience with the Nexus 6P in particular (and rooting.) Not sure if you may be able to shed some light on the issue here?

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