CN900 Mini key copy machine firmware release to latest version v1.50.2.23 in May 2019.
CN900 Mini 1.50.2.23 Update Feature :
Add: Detect Hitag AES (7A) 88
Add: CN5, CN5-new to copy 4C, 4D or 64 and to generate
Add: Toyota 8A smart key type identification
Improve 3A,88, 8E information display
Free Download CN900 Mini 1.50.2.23 update tool with Win7 Win8 driver
https://mega.nz/#!u2ATCSrB!7iQNPtXTyc5FTntJ_UtVhK6sD-feROXp1Vw02JTu7zY
How to Update Key Programmer CN900 mini firmware to 1.50.2.23 ?
Connect mini900 with laptop via USB cable
Open driver folder, install driver (for Win7 or Win8 system)
Set com port to COM4
Run CN900 Mini firmware update tool on desktop
Press CONNECT
Mini cn900 will display current firmware version and prompt new version available to update
Click on Update
Follow step 1 to step 4 to finish firmware update
Close the update tool
Run update again and connect
The firmware has updated to the new version.
How to Update CN900 Mini Firmware to 1.50.2.23 (with Update Tool)
原文：https://www.cnblogs.com/obd2tool/p/10987852.html