- /e/OS version: latest - Device model(s): FP5 - Impacted Application: Easy Installer - Used computer OS: Windows 10 - Used browser: Microsoft EDGE Version 135.0.3179.54 (Offizielles Build) (64-Bit) ## The problem ``` When I use the Easy Installer And I double checked the USB debugging option to be on And I double checked the OEM unlock to be on And I double checked the default USB configuration to be File Transfer And the Fairphone 5 got recognized in Step "Device detection" And the /e/OS Downloading is finished Then the device reboots into bootloader screen When I click "connect" Then the device is not found ``` <details> <summary>Error in Browser after losing focus to popup</summary> Error on step: connect-bootloader Cannot execute command connect bootloader The device is not connected Failed to connect: Cannot connect Bootloader Proposal: Check connection and that no other program is using the phone and retry. </details> {width="20%" height="20%"} {width="20%" height="20%"} ## More information Reading through the [manual installation guide](https://doc.e.foundation/devices/FP5/install) I found the hint: "The FP5 comes with an anti-rollback feature" I checked for the security patch version. It is different from the version of the official OS there /e/OS build : T official (Security patch: 2025-01-05) The device shows * Android version 14 * Android security update February 5, 2025 This could be a reason for the bootloader not working