Linked Questions

1 vote
1 answer
92 views

Device shows up as ????? in ADB [duplicate]

I am running Ubuntu on my computer and I plugged in my tablet to flash TWRP to it. I enter adb devices and here is the output: juniorRubyist@juniorRubyist-iMac:~$ adb devices List of devices attached ...
Joseph's user avatar
  • 111
67 votes
7 answers
90k views

Is there a minimal installation of ADB?

When it comes to troubleshooting, I often read recommendations like "Use adb logcat to find some more details". Looking for a good way to backup all my apps including their data, Full Backup of non-...
Izzy's user avatar
  • 91.2k
4 votes
2 answers
13k views

How to tame "Phone Idle" battery drain on unrooted device?

I use AccuBattery and Kaspersky Battery Life to measure energy consumption. Kaspersky Battery Life shows, that all the tasks use minimal energy. AccuBattery Pro shows, that phone uses 5-10 mAh. This ...
plaidshirt's user avatar
5 votes
1 answer
5k views

ADB error: insufficient permissions for device: verify udev rules

When I run adb shell, I get the following error $> adb shell * daemon not running; starting now at tcp:5037 * daemon started successfully error: insufficient permissions for device: user in plugdev ...
Stefan's user avatar
  • 341
1 vote
1 answer
10k views

ro.adb.secure=0 device still shows as unauthorized over adb Windows 10

I recently purchased a tablet that is a cheap allwinner a33 based Chinese product. I wanted to connect to it over adb but the RSA key popup would not come up. The build.prop shows the ro.adb.secure=0 ...
Top-Bot's user avatar
  • 121
0 votes
1 answer
6k views

Photos in DCIM folder visible on phone, not visible via USB

I use a RedMi 3S (Android 6.0.1), non-rooted and fully updated. I have a large number of photographs in my DCIM/Camera folder (in my "Internal Storage"). They're visible via the Gallery app, File ...
einpoklum's user avatar
  • 543
2 votes
2 answers
2k views

Copying files from PC to "external" SD card

I've got AirDroid and SSHDroid installed on a ZTE Axon 7 running 7.1.1. The phone has a micro SD card in it, and it can access (read from) that card successfully. What I can't do is copy files onto it....
Pointy's user avatar
  • 250
2 votes
1 answer
5k views

Missing "Manage root accesses" under developer options in LineageOS 16

My phone is Xiaomi Mi 5s Plus 6GB/128GB. After a clean installation (flashed MIUI 9.6.27 first) of official LineageOS 16.0 Sep 19, 2019, I can't find "Manage root accesses" under developer ...
Jags's user avatar
  • 121
0 votes
2 answers
2k views

ADB: Phone is not recognised but Ubuntu 18.04 recognises it

My LG G3 phone (phone is rooted; OS is Android Fulmics) is recognised by my laptop when I plug it in. The laptop is running Ubuntu 18.04 and I can easily copy data from and to my phone. I have ...
Nemgathos's user avatar
  • 115
1 vote
1 answer
2k views

Pixel 4a : adb detects device but fastboot command doesn't work

This is a self answered question that is different and may save hours of frustration to somebody Related questions but none that helped ADB detects my device but fastboot doesn't Yureka fastboot ...
beeshyams's user avatar
  • 41.1k
2 votes
2 answers
2k views

My computer doesn't recognize my phone, neither on ubuntu nor windows

I own an LG-K430T, and I use it to share internet with my Desktop PC through USB tethering. Or I did it for a year straight until today, when my PC isn't recognizing my phone anymore, neither on ...
Diego's user avatar
  • 21
3 votes
1 answer
1k views

How can large amounts of files be transferred to Linux via MTP?

I'm trying to copy all of my pictures from my Samsung Galaxy S9+ to my laptop (running Linux Mint). I can transfer a few files at a time no problem, but I have amassed 1000's of files in my pictures ...
Reece's user avatar
  • 133
1 vote
1 answer
2k views

TWRP tells me: adb: sideload connection failed: insufficient permissions for device: user in plugdev group; are your udev rules wrong?

❯ adb sideload lineage-17.1-20201108-nightly-guacamole-signed.zip * daemon not running; starting now at tcp:5037 * daemon started successfully adb: sideload connection failed: insufficient permissions ...
Evan Carroll's user avatar
  • 4,277
3 votes
1 answer
746 views

How do I flash SuperSU to my encrypted Wileyfox on COS 13.0.1?

Yesterday my WileyFox Spark+ came in, which is still equipped with COS13.0.1, based on Android 6.0.1. When I tried rooting the phone though, I got stuck at the point of using the TWRP recovery for ...
Bart's user avatar
  • 193
2 votes
0 answers
811 views

How to disable MTP mode in an Android phone with a broken screen (USB debugging enabled)

The screen of my phone broke some months ago, but luckily I had already enabled USB debugging and I trusted my PC, so I could use the phone with a USB with Vysor (a free open-source app) and I've been ...
ReddaZ's user avatar
  • 21

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