I got an old phone: an HTC WildFire S. Everything works fine, except that the power button has gone bad. Can I start the phone from my computer over a USB connection somehow?
Many PCs can be woken from sleep mode via a keypress. Some, if configured to allow "wake on LAN", can even be woken via a specially-composed Ethernet packet.
I'm unaware of any way to force an Android device to power on using a special USB command.
What to try
You can try removing and reinstalling the battery.
Or you can try connecting the phone to a charger; there might be a slim chance that this will force it to power on.
If that doesn't work, you can try a Google search for [ how to power up Android phone without power button ]. You'll find lots of results, including an article on the AddictiveTips website and many others. These articles have additional suggestions which I haven't mentioned. Maybe one of the articles has a tip which can help you.
If none of the aforementioned ideas help, you can then either:
- Attempt to repair the phone yourself.
- Pay a technician to repair it.
- Or try to sell it (at a discount) to a local shop, which can then try to fix it.
most of flash tools have a "reboot after flash" option. here is example for Mediatek devices
- install fastboot
- install VCOM preloader drivers
- open scatter file with SP Flash Tool
- add new entry for EMMC_USER (with start address and size of boot partition) at Read back option
- click readback (start)
- connect phone (readback will start as soon as preloader is detected)
- insert battery
- hold Volume button (down = fastboot, up = recovery)
- disconnect phone (after readback finished)
- connect phone (phone reboots)
- still hold Volume button until phone booted into fastboot or recovery
- boot into bootloader (from recovery)
while in fastboot mode type in cmd.exe
fastboot oem off-mode-charge 0
this works similar for flashing stock rom (tools without readback option). for samsung devices (no fastboot) a JIG dongle may help
When your phone is not turned on it can't have a adb service running (Disregarding the possible technical difficulties it would also be a security issue.)
Try the following instead:
- Take out your battery and connect the phone to a charger
- Your phone should now turn on.
- Insert your battery.
- Hold power button (+).
Your device should boot now. I'm not sure if this will work for you but i booted my old ZTE Blade using these steps.