36,326 reputation
1461206
bio website
location Munich, Germany
age
visits member for 1 year, 9 months
seen 2 hours ago

Me:

  • Android Activist since 2010
  • Author/translator of multiple Android books

My devices:

My SE tools:


Jan
7
comment OS X utility to create stock images
adb backup might be a good starting point. But for a complete backup to restore to its original state, it would be preferable to have a Nandroid backup available. Unfortunately, that requires at least a rooted device (to clone the partitions with dd), even better with a custom recovery (to use the Nandroid utility). Obviously, after rooting it's no longer factory-state – and after installing a custom recovery, the stock recovery is gone...
Jan
7
awarded  Announcer
Jan
7
revised How to view entire messages in the notification drawer?
image resized (and linked)
Jan
7
comment Acer DA241HL - system reset from bootloader
I've summed up (and detailed) items in a separate answer, to make the facts easier to catch. Good luck, and let us know how it worked out!
Jan
7
answered Acer DA241HL - system reset from bootloader
Jan
7
revised Unstable S4 - AbsListView
edited tags
Jan
7
comment How to remove a system file using adb shell?
Have you checked whether /mnt/extsd is writable (ls -l /mnt |grep extsd)? If it is not, you can neither chmod nor rm its direct contents.
Jan
7
comment Help with identifying an android tablet
You might wish to check Can not unlock my Android device as have no internet connection? for how to work around that "too many pattern attempts" issue. No risks for you, as there's none of your personal data to lose :) Having accomplished that, boot it up completely, and go to Settings→About Tablet for more detailed information. If you cannot figure out yourself from that, posting a screenshot might help us helping you.
Jan
7
reviewed Close How can I download apps to the SD card with space instead of my phone storage?
Jan
7
reviewed Reviewed I want to install Viber and WhatsApp on android emulator
Jan
7
reviewed No Action Needed My iRola DX752 will not turn on
Jan
7
reviewed Reviewed I want to install Viber and WhatsApp on android emulator
Jan
7
comment I want to install Viber and WhatsApp on android emulator
So what is stopping you? Where's the problem? Maybe you edit your question and add some more details?
Jan
7
reviewed Reviewed Help with identifying an android tablet
Jan
7
reviewed Approve suggested edit on Why is my Wi-Fi connection saying “no account found” when I try to connect via wireless networks?
Jan
7
comment Acer DA241HL - system reset from bootloader
If they are all the same devices, it should be possible to "dump" the partitions of one device and "flash" them to the others, essentially "cloning" the entire system. But that requires root. You could use either a custom recovery and Nandroid (check our nandroid tag-wiki for details), or utilize dd for it. I never did that myself, and partition names are quite device specific, so I cannot give detailed help on that.
Jan
7
comment Acer DA241HL - system reset from bootloader
No "reset" will ever roll back any system updates applied. For that, you would have to re-flash the original ROM. For the device to show up with adb devices or fastboot devices, you must have your computer configured accordingly (Windows needs special drivers, Linux/Mac might be happy with just some configuration settings – see e.g. our adb tag-wiki).
Jan
7
comment How to get “Non-Root” access on Emulators ?
You could try su shell to become the "shell user". That's the one adb shell normally uses on devices. But I'm not sure if it is available on the emulator, so please let us know if it works. If the shell user is not available, you could check ls -l /data/data to pick the user of some app to try with.
Jan
7
comment how to run binary on non-rooted android phone?
My bad, /data/local is owned by system:system, and not world-readable. But unless a similar permission issue exists there as well, ls /data/local/hello should work. If it does, please also cross-check with id to see whether the user matches.
Jan
6
comment Is it possible to Install cyanogenmod on Galaxy S2
Have you checked with the CyanogenMod Wiki? It has a dedicated area for the I9100. Depending on which version you want to install, you can check everything there. As this is subject to change with new versions, I won't re-type all the details here :)