# Sentinel Not connecting over adb

Source: https://forum.modalai.com/topic/3230/sentinel-not-connecting-over-adb
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2024-03-18 14:45:17 UTC by SMRazaRizvi
Replies: 3 · Views: 773

## SMRazaRizvi · 2024-03-18 14:45:17 UTC

Hello,

I am trying to connect to my Sentinel drone over the USB, but suddenly it doesn't connect using the `adb shell`.

My laptop can see the USB device when I do run `lsusb`

`Bus 001 Device 016: ID 05c6:900e Qualcomm, Inc. QUSB_BULK_SN:EBC5FC33`
but when I run `adb shell` it says

`error: no devices/emulators found`

Please help.

## Reply by SMRazaRizvi · 2024-03-18 15:30:23 UTC

@SMRazaRizvi I even performed the Unbricking steps as mentioned [here](https://docs.modalai.com/voxl2-unbricking/#flash) but the issue persists.

## Reply by SMRazaRizvi · 2024-03-18 15:33:11 UTC (in reply to SMRazaRizvi)

@SMRazaRizvi The Unbricking, however, was successfull. Below are the last few lines from the output, and at some point inside the output I said `[PROGRAM] flashed "system" successfully
`

```
FIREHOSE READ: <?xml version="1.0" encoding="UTF-8" ?>
<data>
<log value="INFO: Calling handler for patch" /></data>
LOG: INFO: Calling handler for patch
FIREHOSE READ: <?xml version="1.0" encoding="UTF-8" ?>
<data>
<response value="ACK" rawmode="false" /></data>
FIREHOSE WRITE: <?xml version="1.0"?>
<data><setbootablestoragedrive value="1"/></data>

FIREHOSE READ: <?xml version="1.0" encoding="UTF-8" ?>
<data>
<log value="INFO: Calling handler for setbootablestoragedrive" /></data>
LOG: INFO: Calling handler for setbootablestoragedrive
FIREHOSE READ: <?xml version="1.0" encoding="UTF-8" ?>
<data>
<log value="INFO: Using scheme of value= 1" /></data>
LOG: INFO: Using scheme of value= 1
FIREHOSE READ: <?xml version="1.0" encoding="UTF-8" ?>
<data>
<response value="ACK" rawmode="false" /></data>
partition 1 is now bootable
FIREHOSE WRITE: <?xml version="1.0"?>
<data><power value="reset"/></data>

FIREHOSE READ: <?xml version="1.0" encoding="UTF-8" ?>
<data>
<log value="INFO: Calling handler for power" /></data>
LOG: INFO: Calling handler for power
FIREHOSE READ: <?xml version="1.0" encoding="UTF-8" ?>
<data>
<response value="ACK" rawmode="false" /></data>
```

## Reply by SMRazaRizvi · 2024-03-18 15:59:43 UTC (in reply to SMRazaRizvi)

@SMRazaRizvi Issue resolved.
I connected one of the camera ports in a wrong orientation.