For a better view check our [githubpage](https://github.com/bsempir0x65/CTF_Writeups/tree/main/VU_Cyberthon_2023#what-was-the-bluetooth-mac-address-of-the-device) or [github](https://github.com/bsempir0x65/CTF_Writeups/tree/main/VU_Cyberthon_2023#what-was-the-bluetooth-mac-address-of-the-device) out
So we used our OSINT skills to figure out that this information should be in a file called bt_config.xml. Which regarding to other tips before was actually present on the image. Once found it was a piece of cake.
![https://raw.githubusercontent.com/bsempir0x65/CTF_Writeups/main/VU_Cyberthon_2023/img/phone_bt.png](https://raw.githubusercontent.com/bsempir0x65/CTF_Writeups/main/VU_Cyberthon_2023/img/phone_bt.png)
The ID according to the file is **e0:99:71:8e:05:d0** but the expected solution is in uppercase **E0:99:71:8E:05:D0**. No clue why this keeps happening.