You mean you’re running bluetoothctl? Works for me:
root@swi-mdm9x28-wp:~# bluetoothctl
Agent registered
[CHG] Controller 3C:E1:A1:E8:B6:E1 Pairable: yes
[bluetooth]# power on
Changing power on succeeded
[CHG] Controller 3C:E1:A1:E8:B6:E1 Powered: yes
[bluetooth]# exit
root@swi-mdm9x28-wp:~# cm info
Device: WP7702
IMEI: 352653090190778
IMEISV: 4
FSN: 4L931585051610
Firmware Version: SWI9X06Y_02.32.02.00 c2e98c jenkins 2019/08/30 07:28:21
Bootloader Version: SWI9X06Y_02.32.02.00 c2e98c jenkins 2019/08/30 07:28:21
MCU Version: 002.013
PRI Part Number (PN): 9909138
PRI Revision: 001.001
Carrier PRI Name: SIERRA
Carrier PRI Revision: 001.027_000
SKU: 1104405
Last Reset Cause: Power Down
Resets Count: Expected: 379 Unexpected: 1
root@swi-mdm9x28-wp:~#