I am trying to help a student (who is studying overseas) to recover her 'research paper' stored on a Samsung Galaxy Note II, now unbootable (stuck, and forever pulsating at the boot logo). What happened was that she charged the phone overnight, and when she woke up she found the phone stuck pulsating at the boot logo. She tried to remedy by took off and reinsert the battery; replaced with a brand new battery; and pressing 'Home' + 'Power' + 'Volume' buttons; but all these wouldn't help. She really needed to recover her 'research paper' file inside the unbootable phone.
I posted to tell her to try whether she'd be able to access the download mode by pressing and hold 'Home' + 'Power' + 'Vol-' buttons (still waiting for her response post). Meanwhile, according to my search, I found this: xxxx://android.stackexchange.com/questions/115116/how-to-backup-data-on-a-non-booting-unrooted-phone; which suggests to install CWM custom recovery and boot into the custom recovery to backup /data partition, and
1) Install custom ROM from external SD card inserted into the phone, and restore /data backup mentioned above;
or
2) Power on to recovery mode and connect phone to PC. Open up CMD/Terminal, and enter the command: adb pull /sdcard/* C:/Backup to backup to C: drive of the PC. Then flash stock firmware (from SAMmobile) using ODIN. Flash CWM, and use CMD/Terminal command "adb push C:/backup /sdcard" to copy personal files back to phone.
Anyone has some suggestion whether the above is possible?
I've considerable background about Rooting, and have practical experience with ROM flashing (a couple times with Xiaomi Redmi Note 4 and SP flash tool). But in this case, I'm worried about how the Note II has been partitioned; and I don't think that the Note II has enabled USB debugging, nor been rooted. Anybody can help outlining the necessary concepts/procedures that would be best used for this data recovery. Even it is just theoretically possible, I am willing to try. Or is the data recovery not possible at all?
Thanks for your kind consideration
I posted to tell her to try whether she'd be able to access the download mode by pressing and hold 'Home' + 'Power' + 'Vol-' buttons (still waiting for her response post). Meanwhile, according to my search, I found this: xxxx://android.stackexchange.com/questions/115116/how-to-backup-data-on-a-non-booting-unrooted-phone; which suggests to install CWM custom recovery and boot into the custom recovery to backup /data partition, and
1) Install custom ROM from external SD card inserted into the phone, and restore /data backup mentioned above;
or
2) Power on to recovery mode and connect phone to PC. Open up CMD/Terminal, and enter the command: adb pull /sdcard/* C:/Backup to backup to C: drive of the PC. Then flash stock firmware (from SAMmobile) using ODIN. Flash CWM, and use CMD/Terminal command "adb push C:/backup /sdcard" to copy personal files back to phone.
Anyone has some suggestion whether the above is possible?
I've considerable background about Rooting, and have practical experience with ROM flashing (a couple times with Xiaomi Redmi Note 4 and SP flash tool). But in this case, I'm worried about how the Note II has been partitioned; and I don't think that the Note II has enabled USB debugging, nor been rooted. Anybody can help outlining the necessary concepts/procedures that would be best used for this data recovery. Even it is just theoretically possible, I am willing to try. Or is the data recovery not possible at all?
Thanks for your kind consideration
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