blocks|key|27596|text|注:此答案不是正确答案。请滚动至得票率最高的答案，以获得正确答案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|27597|根据我的经验，蓝牙HCI侦听功能需要您的设备是根。在我的根基三星Galaxy+S+GT-I9000上，它工作得很好，而在我的非根基Galaxy+S3+Neo上，这一功能不起作用。|27598|此外，您应该确保您没有意外删除该文件。每当我删除该文件时，我必须重新启用蓝牙侦听功能，以便使系统重新创建日志文件。|27599|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

NOTE: This answer is not the correct answer.
Please scroll to the highest voted answer for the correct answer.
According to my experience the Bluetooth HCI snooping feature requires your device to be rooted. On my rooted Samsung Galaxy S GT-I9000 it works fine while on my non-rooted Galaxy S3 Neo this feature does not work.
Moreover, you should make sure that you have not accidently deleted the file. Whenever I delete the file I have to re-enable the Bluetooth snooping feature in order to make the system recreate the log file.

blocks|key|4535145|text|在Nexus+5X和Pixel+C+Android+O上，您必须启用蓝牙，在开发人员设置中启用HCI侦听，禁用和重新启用蓝牙并重新启动。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4535146|之后，您可以通过转到开发人员设置和“获取错误报告”来获取日志，并获得完整的日志。|4535147|文件bt_stack.conf不会更改，并且/sdcard上没有其他设备上的新文件|4535148|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

On Nexus 5X and Pixel C Android O you have to enable bluetooth, enable HCI snooping in developer settings, disable and reenable bluetooth and reboot.

After that you can get the log by going to developer settings and "take bug report" and get a full log. 

The file bt_stack.conf is not changed and there is no new file on /sdcard as on other devices

blocks|key|4535235|text|对于用户版本Pixel/Nexus，您可能没有权限拉出/data/misc/bluetooth/logs/btsnoop_hci.log。您可以像这样获取hci日志：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4535236|adb+shell+dumpsys+bluetooth_manager
adb+bugreport+>+BUG_REPORT.txt|code-block|syntax|javascript|4535237|您将获得一个BUG_REPORT.txt和zip文件。HCI日志将在zip文件的FS\data\misc\bluetooth\logs下找到。|4535238|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

For a user version Pixel/Nexus, you may not have the permission to pull out /data/misc/bluetooth/logs/btsnoop_hci.log.
You can get the hci log like this:

<pre><code>adb shell dumpsys bluetooth_manager
adb bugreport &gt; BUG_REPORT.txt
</code></pre>

You will get a BUG_REPORT.txt and zip file. HCI log will be found under FS\data\misc\bluetooth\logs of the zip file.

blocks|key|4535456|text|在OnePlus+6+(A6003，Android9)手机(我相信还有其他OnePlus手机)上，位置是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4535457|/sdcard/oem_log/btsnoop|offset|length|style|CODE|4535458|此位置不需要根，也不需要通过adb访问。日志将具有.cfa扩展名，并且是二进制pcap格式，适合使用Wireshark等工具进行分析。|4535459|entityMap|0|LINK|mutability|MUTABLE|url|https://www.wireshark.org/^0|0|0|N|0|E|3|P|4|13|4|1E|9|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@$D|T|E|U|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|V|8|@$D|W|E|X|F|G]|$D|Y|E|Z|F|G]|$D|10|E|11|F|G]]|9|@$D|12|E|13|1|14]]|A|$]]|$1|J|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

On a OnePlus 6 (A6003, Android 9) phone (and I believe other OnePlus phones) the location is:

<code>/sdcard/oem_log/btsnoop</code>

This location does not require rooting nor accessing through <code>adb</code>. The log will have a <code>.cfa</code> extension and is in a binary <code>pcap</code> format suitable for analysis with e.g. <a href="https://www.wireshark.org/" rel="noreferrer">Wireshark</a>.

blocks|key|4535341|text|这就是我解决这个问题的方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4535342|1)adb+shell+cat+/etc/bluetooth/bt_stack.conf|offset|length|style|CODE|4535343|要查看日志文件名，对我来说是：|4535344|/data/log/bt/btsnoop_hci.log|code-block|syntax|javascript|4535345|棘手的部分是，生成的文件在名称中带有时间戳，因此您不能仅使用以下命令获取它们|4535346|adb+pull+/data/log/bt/btsnoop_hci.log|4535347|2)改为使用adb+pull+/data/log/bt/，您将获得整个文件夹以及所有日志|4535348|entityMap^0|0|2|16|0|0|0|0|0|6|M|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|10|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|11|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|12|8|@]|9|@]|A|$]]|$1|Q|3|R|5|L|7|13|8|@]|9|@]|A|$M|N]]|$1|S|3|T|5|6|7|14|8|@$D|15|E|16|F|G]]|9|@]|A|$]]|$1|U|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|V|$]]

This is what solved it for me:

1)<code>adb shell cat /etc/bluetooth/bt_stack.conf</code>

to see what is the log file name, for me it is :

<pre><code>/data/log/bt/btsnoop_hci.log
</code></pre>

The tricky part is that files get generated with timestamp in their names so you won't be able to get them(it) just by using 

<pre><code>adb pull /data/log/bt/btsnoop_hci.log
</code></pre>

2)Use <code>adb pull /data/log/bt/</code> instead, and you will get the whole folder, with all logs

blocks|key|27643|text|在我的系统上，bt_stack.conf显示了/sdcard/Android/data/btsnoophci.log|type|unstyled|depth|inlineStyleRanges|entityRanges|data|27644|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

On mine, bt_stack.conf showed /sdcard/Android/data/btsnoop_hci.log

blocks|key|4535297|text|对于三星数据，神奇的位置是/+s8+/s8/bt/|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4535298|并且您需要root访问权限才能获得它|4535299|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

For Samsung s8, the magic location is /data/log/bt/ 
and you need root access to get it

blocks|key|4535201|text|@TwinPrimesAreEz很好，但还有第四个选择；至少当你的设备是根的时候。呼叫：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4535202|/system/bin/btsnoop|code-block|syntax|javascript|4535203|Somewhere此工具已被删除，但它仍然存在于我的设备上。更重要的是，它似乎是在启用蓝牙时调用的。在logcat中我看到："btsnoop_dump：：snoop_log_open:+Unable+to+open+the+Dir+entry“。不知道为什么它无法打开那个目录(顺便说一句，它是/data/media/0)，但我怀疑这个工具以某种方式干扰了集成到Android中的新的HCI侦听选项。但如果您直接调用该工具(例如，通过adb+shell或Terminal+emulator)，它就可以工作。对我来说，它创建了/data/media/0/hci_snoop20180203164422.cfa文件。|offset|length|style|CODE|4535204|entityMap|0|LINK|mutability|MUTABLE|url|https://sourceforge.net/p/android-x86/system_bt/ci/48d70a4e6fad28d7434b33cd7559175af60b9e59/|1|https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjqo4y3jorZAhUHbFAKHRFDDrUQFggtMAA&url=https%253A%252F%252Fplay.google.com%252Fstore%252Fapps%252Fdetails%253Fid%253Djackpal.androidterm%2526hl%253Den^0|0|0|1F|6|43|D|61|9|7A|15|0|9|0|6B|H|1|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@$I|Z|J|10|K|L]|$I|11|J|12|K|L]|$I|13|J|14|K|L]|$I|15|J|16|K|L]]|9|@$I|17|J|18|1|19]|$I|1A|J|1B|1|1C]]|A|$]]|$1|M|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]|U|$5|P|Q|R|A|$S|V]]]]

@TwinPrimesAreEz is excellent but there is a fourth option; at least when your device is rooted. Call:

<pre><code>/system/bin/btsnoop
</code></pre>

<a href="https://sourceforge.net/p/android-x86/system_bt/ci/48d70a4e6fad28d7434b33cd7559175af60b9e59/" rel="nofollow noreferrer">Somewhere</a> this tool was removed but it still exists on my device. Whatismore, it seems to be called when bluetooth is enabled. In <code>logcat</code> I see: "btsnoop_dump: : snoop_log_open: Unable to open the Dir entry". Not sure why it is unable to open that dir (btw, it is <code>/data/media/0</code>) But I suspect that this tool somehow interferes with the new HCI snooping option integrated into Android. But if you call that tool directly (e.g. via <code>adb shell</code> or <a href="https://www.google.de/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=web&amp;cd=1&amp;cad=rja&amp;uact=8&amp;ved=0ahUKEwjqo4y3jorZAhUHbFAKHRFDDrUQFggtMAA&amp;url=https%3A%2F%2Fplay.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Djackpal.androidterm%26hl%3Den" rel="nofollow noreferrer">Terminal emulator</a>) it works. For me it created file <code>/data/media/0/hci_snoop20180203164422.cfa</code>.

blocks|key|27999|text|所有这些都很有帮助--在S8和Windows10上，Fukai/Rene关于使用bug报告的选项对我来说是最好的。(文件路径略有不同，但zip文件中包含日志。)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|28000|然而，我后来注意到我在Android中收到了一个“分享你的BUG报告”的通知，当我选择通知时，我可以选择通过电子邮件/保存到G+Drive/等。通过电子邮件将txt和zip发送给自己，那就是，跳过adb和其他繁琐的操作。|28001|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

All the above were helpful -- on an S8 and Windows 10, the option from Fukai/Rene about using the bug report was the best for me. (Slightly different file path, but the zip file did have the log in it.)
However, I later noticed that I got a NOTIFICATION in Android to &quot;SHARE YOUR BUG REPORT&quot;, and when I selected the notification I had options to email/save to G Drive/etc. Emailed the txt and zip to myself, and that was that, skipping adb and the other rigmarole.

I'm running Android 4.4.2 and I enabled the "Bluetooth HCI snoop log" as described here <a href="https://stackoverflow.com/questions/23877761/sniffing-logging-your-own-android-bluetooth-traffic/23900782#23900782">Sniffing/logging your own Android Bluetooth traffic</a>

After turning bluetooth on and off I rebooted the phone. I could not find the log file in the expected location: 

<pre><code>$ adb pull /sdcard/btsnoop_hci.log
remote object '/sdcard/btsnoop_hci.log' does not exist
</code></pre>

How can I get to the btsnoop_hci.log?

Bluetooth HCI snoop log not generated

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我运行的是Android4.4.2，并且我启用了这里描述的"Bluetooth HCI snoop log“在打开和关闭蓝牙后，我重新启动了手机。我在预期的位置找不到日志文件：$ adb pull /sdcard/btsnoop_hci.logremote object '/sdcard/btsnoop_hci.log' does not exist我怎么去btsnoop_hci.log？

问未生成蓝牙HCI侦听日志
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