This situation can occur because of the reason below: Battery level too low. * Recharge the battery. For this refer to chapter 2.1 'Charging the battery.' Battery lifetime came to an end (battery cannot be recharged anymore). * Replace the battery. For this refer to chapter 7.2.2 'Replacing the battery.'

The information on this page applies to the following models: SRT9320/27 , SRT9320/10 .