Boot loop
Sadly, there are many bad reasons for boot loops.
If you encounter a boot loop, best is to visit MIB2 telegram group and get help.
Note down the reboot interval you see, as well as a description what you can see on your screen and if the unit is at all responding and of course what you have changed on unit before this started.
:::info If it is M.I.B related keep a ZIP of your M.I.B backup folder from SD card ready
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