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I am in the middle of trying to understand the correct procedure to recover my data from a phone that went into a bootloop.

  1. I installed android sdk, with adb tools.
  2. Also installed ODIN (although I don't know how to use it for now)
  3. Following commands I managed to perform and stuck on the last one, mounting sdcard

As I feel, that my phone data can be retrieved. Because I can still go into recovery mode, odin mode, can see the battery charging. Also able to detect the phone as MTP device in device manager although it doesn't show up under my computer as a portable device...

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What are the steps should I follow to get rid of this bootloop and recover my data? If adb command can mount my sdcard, doesn't it mean there's a way to recover the data?

In recovery mode I can see two options: 1. update from adb 2. update from external storage I have already taken out my external sdcard, so I won't lose data in it along the built in sdcard. Here update from sdcard means built in card or external? When I chose the 2nd option, I get the following error

 E: failed to mount /sdcard <No such file or directory>

Edit 2:

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  • You will find some useful hints in our adb tag-wiki and especially backup tag-wiki. In the latter, take a closer look at the "ADB Backups" section. Additionally, if your device is rooted, there's also the possibility to use adb pull to retrieve all contents from it. – Izzy Nov 25 '13 at 7:27
  • @Izzy Praised to you! Could you please tell me which direction should I go first? I am now trying to do the command "adb sideload <update 4.2>" to update the phone via adb. But if I can pull all the contents from the phone then I don't have to do any updates because once data is pulled I could simply select wipe all...to reboot I guess.. – aspiring Nov 25 '13 at 9:29
  • All depends on whether you have root access on the device (without that, you cannot adb pull your stuff from /data). If you have no experience in that area, I'd recommend using one of the ADB Backup frontends to save your apps' data to separate archives (you could also try a full adb backup, then reset, and then restore all; if you're lucky that's all you need. But chances are you end up in the same situation then, so better be prepared). I guess you have your contacts/calendars synced with Google? – Izzy Nov 25 '13 at 10:17
  • @Izzy I tried adb pull. It says remote object data/data/... doesn't exist. So does it mean the device is not rooted? What are the ADB backup frontends you are proposing? For me apps data not important - probably What'sApp. Most important are contacts, sms and picutre/pdf files. Nope unfortunately I always switch off Sync as Google was too intrusive.. :( – aspiring Nov 25 '13 at 10:20
  • Are you sure you didn't miss the leading /? adb pull /data <target>, see e.g. here. If the device is not rooted, you will get "permission denied" errors. If not using Google Sync (which I can perfectly understand), you should have taken care for backups of your contacts in advance! For recommendations: Please check the links to the tag-wikis I've posted. Information was placed there so we don't have to repeat it over and over again. Documents should be stored below /sdcard, which you can pull without root. – Izzy Nov 25 '13 at 10:28
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I made a tool do help even the most the computer illiterate person recover their files using this method. You will, however need to follow the instructions in the article if you have not set up ADB.

http://forum.xda-developers.com/showthread.php?p=51822116

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