[Q] nandroid backup via adb (no screen) - HTC EVO 3D

long story short, my 3d took a swim. dried it in rice and everything, but the lcd doesn't look like it is going to come back all the way. I tried to boot into the bootloader and I can see a little light at the bottom of the screen and the bootloader screen VERY faintly. I can connect to the phone via adb and send some commands so the phone seems to be at least kindof working, except for the screen.
I've tried to find a way to do this but I am stuck. what is the easiest way to backup everything on my phone through adb (since I have no working screen)? can you do a nandroid backup through adb? I have the latest twrp installed.

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jon1234444 said:
long story short, my 3d took a swim. dried it in rice and everything, but the lcd doesn't look like it is going to come back all the way. I tried to boot into the bootloader and I can see a little light at the bottom of the screen and the bootloader screen VERY faintly. I can connect to the phone via adb and send some commands so the phone seems to be at least kindof working, except for the screen.
I've tried to find a way to do this but I am stuck. what is the easiest way to backup everything on my phone through adb (since I have no working screen)? can you do a nandroid backup through adb? I have the latest twrp installed.
Click to expand...
Click to collapse
It is not necessarily a nandroid, but you can 'adb pull' your system and data.
私のEVO 3Dから送信される。

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jon1234444 said:
long story short, my 3d took a swim. dried it in rice and everything, but the lcd doesn't look like it is going to come back all the way. I tried to boot into the bootloader and I can see a little light at the bottom of the screen and the bootloader screen VERY faintly. I can connect to the phone via adb and send some commands so the phone seems to be at least kindof working, except for the screen.
I've tried to find a way to do this but I am stuck. what is the easiest way to backup everything on my phone through adb (since I have no working screen)? can you do a nandroid backup through adb? I have the latest twrp installed.
Click to expand...
Click to collapse
i might be missing it, but i'm not seeing any command line arg which can be passed to the actual recovery binary to trigger a nandroid backup
i'm looking is the source file to the latest twrp recovery.c around these lines: https://github.com/TeamWin/TWRP2/blob/master/recovery.c#L912
Code:
switch (arg) {
case 'p': previous_runs = atoi(optarg);
break;
case 's': send_intent = optarg;
break;
case 'u': update_package = optarg;
break;
case 'w': wipe_data = wipe_cache = 1;
break;
case 'c': wipe_cache = 1;
break;
case 'e': encrypted_fs_mode = optarg; toggle_secure_fs = 1; break;
case 't': ui_show_text(1);
break;
case '?': LOGE("Invalid command argument\n");
continue;
}
the good news: almost anything is possible over ADB!
the bad news:
otherwise, i'm not seeing any command line type input point in the backstore.c file to access the nandroid functions.
the older amon ra was using a sh for backup/restore which could be access thru the command line.
looking at the earlier release of twrp, nandroid backup/restore seems to setup similarity w/o command line access. as i recall, has been a while, but cwm is also using similar functionality as twrp in that there isn't command line access, but I could be wrong on cwm?
dastin1015 said:
It is not necessarily a nandroid, but you can 'adb pull' your system and data.
私のEVO 3Dから送信される。
Click to expand...
Click to collapse
this is prob the easiest method to pull all the files out. if you wanted to make it simplier, you could create a tar of the directories onto the sdcard and then adb pull the single .tar file
first, make sure to mount the partitions:
adb shell
mount -o rw /system /system
mount -o rw /data /data
then exit the shell
something such as: adb shell tar -cvf /sdcard/system-backup.tar /system
and: adb shell tar -cvf /sdcard/data-backup.tar /data
for using the straight adb pull method, you'll want to mount the partitions first and then you can execute the adb command.
adb shell
mount -o rw /system /system
mount -o rw /data /data
then exit the shell
adb pull /system c:\android-backup\system
adb pull /data c:\android-backup\data
hope that helps point in the right direction. good luck!

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thanks a lot joey, though I managed to find a very similar solution late last night: http://forum.xda-developers.com/showthread.php?t=1021625
though after doing that and opening the tar files with 7-zip it gave me an "unexpected end of archive" error so I was suspicious it didnt get everything.
the real kicker though was finding this:
http://code.google.com/p/androidscreencast/
it actually works and I was able to get in and titanium backup everything.

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joeykrim said:
for using the straight adb pull method, you'll want to mount the partitions first and then you can execute the adb command.
adb shell
mount -o rw /system /system
mount -o rw /data /data
then exit the shell
adb pull /system c:\android-backup\system
adb pull /data c:\android-backup\data
hope that helps point in the right direction. good luck!
Click to expand...
Click to collapse
Did this.. Now how to restore? ADB push?
Some kind of format the phone first?
Also can restore to different (replacement, same kind) phone?
Thanks much!

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jackfrost909 said:
Did this.. Now how to restore? ADB push?
Some kind of format the phone first?
Also can restore to different (replacement, same kind) phone?
Thanks much!
Click to expand...
Click to collapse
Also, curious how you would restore the files.
Could you just rename the .tar file as system.img and issue the following commands?
fastboot flash system system.img
Would this work?