Troubleshooting Tools
TROUBLESHOOTING GUIDE
Ascom Myco 3
Figure 10. Integrated diagnostics feature (Factory mode)
5.12 Perform a Factory Reset
This section presents information about how to factory reset Ascom Myco 3 devices using handset’s
settings, integrated diagnostic tool (Factory mode), and MDM consoles.
Android has a Factory Reset Protection (FRP) to prevent others from using the device without permission.
To factory reset a protected device, the screen should be unlocked or Google Account password be
entered. Expect to unlock the screen or enter Google Account information if:
• Device's data is erased through Settings.
• Device is reset using its buttons Recovery mode.
• Device is remotely reset with Find My Device.
When a handset factory reset is performed, all handset configuration parameter settings are restored to the
default values.
Factory reset will erase all the data from a phone, for example Private Branch Exchange (PBX)
subscriptions, Google account(s), system and app data, and all downloaded apps. Make sure there
is no important information that is not backed up.
5.12.1 Factory Reset Using the Handset
It’s highly recommended to keep a handset charged until the reset is completed. If the battery level is low,
replace the battery, use one of the Ascom chargers or reset with the plugged in handset. For more
information on accessible charging methods, please refer to Data Sheet, Ascom Myco 3 Wi-Fi, TD 93299EN
or Ascom Myco 3 Wi-Fi and Cellular, Data Sheet, TD 93298EN.
Diagnostic Tool (Factory Mode)
The instructions below show how to use the integrated diagnostics feature (for the additional details, refer
to 5.11 Diagnostics, page 31) to reset a device to factory settings:
1. In the opened dialer, type *#66#.
2. Tap Factory Reset under the list of hardware features.
32 TD 93297EN / 19 December 2019 / Ver. B
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