# Problem with unbricking

Source: https://forum.modalai.com/topic/759/problem-with-unbricking
Category: Flight Core and Legacy VOXL (https://forum.modalai.com/category/9/flight-core-and-legacy-voxl)
Tags: voxl
Posted: 2022-02-21 14:30:21 UTC by Philemon Benner
Replies: 1 · Views: 422

## Philemon Benner · 2022-02-21 14:30:21 UTC

Hey,
i'm currently trying to unbrick a Voxl from you. It's showing up in fastboot and starts flashing but then i get the following error:
```
[INFO] adb installed
[INFO] fastboot installed

[INFO] Factory Mode

[INFO] Using factory mode
[INFO] Rebooting into fastboot...
error: no devices/emulators found
[INFO] Waiting for fastboot...
target reported max download size of 536870912 bytes
sending 'aboot' (494 KB)...
OKAY [  0.047s]
writing 'aboot'...
OKAY [  0.029s]
finished. total time: 0.077s
target reported max download size of 536870912 bytes
sending 'boot' (56070 KB)...
OKAY [  1.639s]
writing 'boot'...
OKAY [  0.575s]
finished. total time: 2.214s
target reported max download size of 536870912 bytes
erasing 'system'...
OKAY [  0.010s]
sending sparse 'system' 1/4 (522964 KB)...
FAILED (data write failure (Protocol error))
finished. total time: 8.880s

```

## Reply by Philemon Benner · 2022-02-21 14:37:39 UTC

Fixed it forgot to turn Fastboot of when installing.