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CH340G Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers

Part No. CH340G
Description  USB to UART Interface
Download  9 Pages
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Maker  ETC [List of Unclassifed Manufacturers]

 6 page
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Restore El Capitan security settings
For security reasons it is recommended change security settings to OSX El Capitan default settings.
9. After installing CH341 Package click Apple menu  , choose Restart
10. As the computer restarts, hold down the Command (⌘) in combination with R key.
Apple sign will appear for a while (up to couple of minutes) until recovery mode will appear.
11. In recovery mode click on System Preference
12. In System Preference click on Security & Privacy Settings,
click on lock sign for enable making changes
• assign Administrator privileges within password
• choose Mac App Store and identified developers
13. After saving Security & Privacy Settings restart by click on  choose Restart
After restart CH341 driver will be installed and security settings will be default El Capitan settings.
In case of error messages during driver install kext privileges has to be changed (see next chapter Changing
OSX El Capitan kext privileges).
Changing OSX El Capitan kext privileges
Normally, whole directory that contains the kext files must be owned by the root:wheel user. If it's not,
errors during loading phase of kext (kernel extension) will appear. Depending on OSX El Capitan version
System Integrity Protection has to be disabled in recovery mode as follows.
1. Close all Applications, save all Files
2. In the Apple menu  , choose Restart
3. As the computer restarts, hold down the Command (⌘) in combination with R key.
Apple sign will appear for a while (up to couple of minutes) until recovery mode will appear.
4. In recovery mode click on Utilities menu choose Security Configuration
5. In System Configuration disable System Integrity Protection checkbox
click on apply for enable making changes
6. after rebooting, restart Mac kext files will be writable, if not please follow next solution.
Depending on OSX 10.11 version previous version will not work, because of NVRAM options. On some
system you can change kext privileges by using Terminal in regular mode, so if following steps are not
working change system into recovery mode as in previous solution.
1. Open Terminal
• in regular mode Launchpad find others click Terminal
• in recovery mode Utilities menu choose Terminal
2. In Terminal check System Integrity Protection status by using command as follows
• sudo csrutil status press ↩ (enter)
• assign Administrator privileges within password (password will not appear) and press ↩
• message as follows will appear System Integrity Protection status: enabled.
Data sheet: CH340G USB to UART Interface
page 6 of 9
Androegg a brand of
Beauty-Point Deutschland GmbH
Raiffeisenstraße 2-4     83 607 Holzkirchen     Germany  
email: info@androegg.com

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