There are plenty of https://android.izzysoft.de/applists/category/named/file_backup available specialized on this (also some file managers like Amaze mentioned in Robert's comment on your question cover this as well) – or you could simply use /questions/tagged/adb .

If you're on Linux (Mac or Cygwin should work as well), my tool Adebar has a fitting script in https://codeberg.org/izzy/Adebar/src/branch/master/tools which can even deal with split APKs, watch out for getapk: when called without parameters it gives you details on its syntax. The script can extract single APKs, or APKs of all system or user-installed apps at once.

I have keyboard+mouse combo connected via USB A -> USB C reduction. Mouse works as expected, but keyboard writes wrong characters (it starts in second line see below).

I tried two different USB combos (from different manufacturer - Logi(tech), Yenkee) and both produce same result.

It's Asus stock Android 11, system language is English, SW keyboard is SwiftKey (QWERTZ, EN+CZ), also I use Bluetooth keyboard Logitech K840 which works as expected.

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I am trying to backup data from Xiaomi Mi 9t which has a software error and is non-functional:

• the screen is stuck at 'Just a sec'
• in settings I am only able to connect to wifi and bluetooth
• USB debugging is enabled
• phone is not rooted

I am able to connect to device using adb shell but I am not able to pull any data.

Here are few commands that I tried:

➜  Downloads adb devices
List of devices attached
897b97e8    device
➜  Downloads adb root

adbd cannot run as root in production builds
➜  Downloads adb pull /sdcard ./

adb: error: failed to stat remote object '/sdcard': No such file or directory
➜  Downloads adb shell

davinci:/ $ ls

ls: ./init.zygote64_32.rc: Permission denied

ls: ./init.mishow.ctl.rc: Permission denied

ls: ./init.rc: Permission denied

ls: ./init.usb.rc: Permission denied

ls: ./ueventd.rc: Permission denied

ls: ./init.zygote32.rc: Permission denied

ls: ./init.recovery.hardware.rc: Permission denied

ls: ./init: Permission denied

ls: ./init.miui.google_revenue_share_v2.rc: Permission denied

ls: ./init.batterysecret.rc: Permission denied

ls: ./init.miui.cust.rc: Permission denied

ls: ./init.environ.rc: Permission denied

ls: ./init.miui.post_boot.sh: Permission denied

ls: ./init.miui.qadaemon.rc: Permission denied

ls: ./init.batteryd.rc: Permission denied

ls: ./verity_key: Permission denied

ls: ./init.recovery.qcom.rc: Permission denied

ls: ./init.mi_thermald.rc: Permission denied

ls: ./init.miui.rc: Permission denied

ls: ./init.usb.configfs.rc: Permission denied

ls: ./init.miui.google_revenue_share.rc: Permission denied

ls: ./init.miui.nativedebug.rc: Permission denied

ls: ./init.miui.early_boot.sh: Permission denied

acct apex bin bugreports cache charger config cust d data debug_ramdisk default.prop dev etc lost+found mnt odm oem proc product product_services res sbin sdcard storage sys system vendor

1|davinci:/ $ cd /sdcard

/system/bin/sh: cd: /sdcard: No such file or directory

2|davinci:/ $ cd sdcard

/system/bin/sh: cd: /sdcard: No such file or directory

2|davinci:/ $

EDIT 1:

➜  Downloads adb pull /storage/emulated/0
adb: error: failed to copy '/storage/emulated/0/O,muoupUzTcgD9bevATC1B' to './0/O,muoupUzTcgD9bevATC1B': remote open failed: Required key not available

I want to root my phone Samsung S6 SM-G920F android 7. I have tried app like kingroot, kingoroot, z4root, towelroot... but none of this work

Thank you for your help!!!

Well, you can mount it the same way as Android 9 on Ubuntu 18 (or any Android > 4 on almost any Linux distribution) – utilizing ADB. I use https://github.com/spion/adbfs-rootless for that. True, you need to compile it yourself – but that's pretty easy, with instructions in the readme. That done you can easily mount the storage of your Android device at the command line – and access everything that's accessible without root powers as if it were locally available on your Linux machine.

Check the supported https://en.wikipedia.org/wiki/LTE_frequency_bands of the device.

Your company will most likely only operate their LTE private network in one special band which has to be supported by the device. If the device does not support the necessary band/frequency then you can't use the device in the company LTE network.

You could try to flash all partition images (except userdata.img) via heimdall command line

heimdall flash --BOOTLOADER sboot.bin --CM cm.bin --PARAM param.bin --BOOT boot.img --RECOVERY recovery.img --RADIO modem.bin --SYSTEM system.img --CACHE cache.img --HIDDEN hidden.img

The above example command is created from partition list. This is how you get pit file

• install https://www.glassechidna.com.au/heimdall , https://www.python.org and https://www.xda-developers.com/samloader-download-updates-samsung-galaxy

• download and decrypt stock ROM for your region code

  C:\Android\samloader>samloader -m SM-N920C -r AFR checkupdate
  N920CXXS5CRH1/N920COJV4CRB3/N920CXXU5CRH1/N920CXXS5CRH1
  C:\Android\samloader>samloader -m SM-N920C -r AFR download -v N920CXXS5CRH1/N920COJV4CRB3/N920CXXU5CRH1/N920CXXS5CRH1 -O .
  
  downloading SM-N920C_1_20180820163853_vvggswhd8u_fac.zip.enc4
  
  [################################] 38453/38453 - 00:06:20
  C:\Android\samloader>samloader -m SM-N920C -r AFR decrypt -v N920CXXS5CRH1/N920COJV4CRB3/N920CXXU5CRH1/N920CXXS5CRH1 -V 4 -i SM-N920C_1_20180820163853_vvggswhd8u_fac.zip.enc4 -o SM-N920C_1_20180820163853_vvggswhd8u_fac.zip
  
  [################################] 615247/615247 - 00:01:21
  
  

• unpack files from zip

  C:\Android\samloader>7z l SM-N920C_1_20180820163853_vvggswhd8u_fac.zip
  7-Zip 18.01 (x64) : Copyright (c) 1999-2018 Igor Pavlov : 2018-01-28
  Scanning the drive for archives:
  
  1 file, 2520047837 bytes (2404 MiB)
  Listing archive: SM-N920C_1_20180820163853_vvggswhd8u_fac.zip
  --
  
  Path = SM-N920C_1_20180820163853_vvggswhd8u_fac.zip
  
  Type = zip
  
  Physical Size = 2520047837
  
  64-bit = +
  
  Characteristics = Zip64
  Date      Time    Attr         Size   Compressed  Name
  
  2018-08-20 16:39:50 .....      5058737      1491256  BL_N920CXXS5CRH1_CL11762721_QB19211222_REV00_user_low_ship.tar.md5
  
  2018-08-20 16:39:50 .....   4797583545   2248597336  AP_N920CXXS5CRH1_CL11762721_QB19211222_REV00_user_low_ship_meta.tar.md5
  
  2018-08-20 16:44:16 .....     38092989     38093065  CP_N920CXXU5CRH1_CP10334463_CL11762721_QB19211222_REV00_user_low_ship.tar.md5
  
  2018-08-20 16:44:18 .....    273756344    231865000  CSC_OJV_N920COJV4CRB3_CL11762721_QB16863364_REV00_user_low_ship.tar.md5
  
  2018-08-20 16:44:18         5114491615   2520046657  4 files
  
  

• extract pit from CSC file

  CSC_OJV_N920COJV4CRB3_CL11762721_QB16863364_REV00_user_low_ship.tar.md5
  

• inspect NOBLELTE_EUR_OPEN_HIDDEN150M.pit pit file with https://forum.xda-developers.com/showthread.php?t=1916936 or https://forum.xda-developers.com/showthread.php?t=2953072

Answer: The Sony Xperia 5 III just has bluetooth problems with some systems.

There does not seem to be a fix. The fix is to use a different make and model of phone.

I manually edited packages.xml deleting relevant sections from to for every obsolete Trichrome package, working fine.

Make sure owner system and permissions rw-rw---- 660 are preserved after edit, then reboot.

For extra safety I first made a backup of the original file and for convenience I edited a copy of the file on a PC using Notepad++, then pushed back on my device.

I erased a file called .sh from the system/bin directory on my android jellbean device now it doesn't work properly. I can connect via USB and adb but cannot access the shell. How can I replace the missing time and gain access to shell