ADB > error: no devices/emulators found

[AnotherElk]

@AbangL

On windows pc, in device manager, under ‘other devices’ node, I see one node ‘FP2’.
This node’s icon has a yellow triangle with an exclamation mark in it.
Under properties I see that no driver for this device is installed (Dutch “De stuurprogramma’s voor dit apparaat zijn niet geïnstalleerd. (Code 28)”).

This here was done because MTP didn’t work when TWRP was booted, but it could serve as a generic driver repair … (ignore the TWRP part and just boot the phone) …

@AnotherElk

• Disconnected the phone from the computer.
• In Control Panel - Programs and Features:
  Uninstalled everything with “MTP” or “ADB” in its name.
• Rebooted Windows.
• In Control Panel - Device Manager:
  Enabled View - Show hidden devices, and then uninstalled every possible ADB, MTP and smartphone device, hidden or not.
• Rebooted Windows.
• Connected the phone again with booted TWRP, Windows then needed a moment to set up MTP again automatically and prompted a success message afterwards.

Et voilà

@AnotherElk

Turns out I deleted my working dic:adb and dic:fastboot commands with this endeavour (they were probably from Minimal ADB and Fastboot), so I did the following …

• Downloaded the current Android SDK Platform Tools, it’s better to use these anyway.
• Unzipped the ZIP file to C:\platform-tools (you can unzip it to wherever you like).
• Added this path to the Windows “PATH” environment variable, so adb and fastboot could be run from everywhere again without always having to prefix them with C:\platform-tools\ .