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my device got broken but i am still able to connect usb in the stock recovery mode.

if i try to start a shell via adb while the device is in recovery mode, i fail. my terminal echos the line: "error: "Closed".

i think, because this device isnt rooted/cfw, the official firmware blocks the shell access in recovery. but there must be a way to connect.

what could i do to open a shell on this device?

just reinstalling another OS through sideload isnt a option, the only way to access data is through adb

-there is a option in the recovery: "update via adb/sideload". when i choose this mode i can execute via adb a sideload update. the device recognizes the file and executes it. - if try this with the same setup but another rooted device, i success.

  • 2
    The behavior is status-by-design. Your stock recovery is not designed to grant shell access. Your only choice here is to somehow manage to flash a custom recovery. – Firelord Dec 30 '15 at 14:19
  • 4
    To achieve something similar to what @Firelord suggested: TWRP can be booted on many devices without being installed. For that, find a matching image, then boot to the bootloader and run fastboot boot twrp.img. Btw: you can check with fastboot devices resp. adb devices whether a device is visible to the corresponding tool. – Izzy Jul 8 '16 at 19:40

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