rb532 often switched on and off
but not always
sometimes turns on and works fine

What power suplly do you use?
Is it switched off physically or board reboots time after time?

What power suplly do you use?
Is it switched off physically or board reboots time after time?

DSA-0421S-50 1
48V - 0,7 A

What power suplly do you use?
Is it switched off physically or board reboots time after time?

works
I did turn it off physically then turn on and it can
- Include
- Very often include on and off, I turn on him several times and he starts to work

Try swich to low voltage mode. Test with 22V-10V PSU

Try swich to low voltage mode. Test with 22V-10V PSU

tried
same

how to change the firmware?
can it work

MikroTik RouterOS could be upgraded,
http://wiki.mikrotik.com/wiki/Upgrading_RouterOS

RouterBOARD firmware upgrade is possible with,
/system routerboard upgrade
/system reboot

MikroTik RouterOS could be upgraded,
http://wiki.mikrotik.com/wiki/Upgrading_RouterOS

RouterBOARD firmware upgrade is possible with,
/system routerboard upgrade
/system reboot

BIOS ?