Android's SAFEMODE is similar to Windows SAFEMODE.
Booting a device into safemode means that only the essential apps are running.
This may be needed if the device is caught within a FORCE CLOSE LOOP.
A 'force close loop' is when an unstable application is involuntary closed by the system, and then it's automatically launched again, then closed, and this goes on and on, and prevents you from accessing any of Android's menus to kill the loop.
On my desire HD – to enter the SAFEMODE, I performed the following steps:
- Remove the battery to reset the phone (you'll loose temporary data stored in the RAM)
- Re-insert the battery and press the POWER button
- As soon as the first HTC icon appears, PRESS AND HOLD the VOLUMN DOWN button till the device fully loads
Once the phone has completely switched on, you'll see a transparent SAFEMODE watermark in the lower left hand corner of the screen.