Each vendor uses different keys to interrupt boot sequence and chose boot device, open the BIOS/UEFI configuration page or do whatever is possible.
PC/Laptop
Apple
- Boot device selection : hold option (alt) key while powering on
HP
- BIOS : tap F10 when powering up
- Boot device selection : tap F9 when powering on
Lenovo
- Interrupt boot : Enter
- BIOS : F1
- Boot device selection : F12
Intel
- BIOS : F2
- Boot menu : F10
Android
Lenovo P2
- Fastboot : hold volume down while powering on
- Recovery : hold volume up + volume down + home while powering up