Redeeming an Autodesk AutoCAD LT 2021 key is really simple, just follow these steps:
You need to download 1 LINK to install this software:
English (Windows):
https://edutrial.autodesk.com/NetSWDLD/2021/ACDLT/B1A1D73D-D894-441D-803D-BFFCF11A1340/SFX/AutoCAD_LT_2021_SWL_English_Win_64bit_dlm.sfx.exe
German (Windows):
https://edutrial.autodesk.com/NetSWDLD/2021/ACDLT/7E536EAC-A330-4F9F-B695-BC9549153D0D/SFX/AutoCAD_LT_2021_SWL_German_Win_64bit_dlm.sfx.exe
Czech (Windows):
https://edutrial.autodesk.com/NetSWDLD/2021/ACDLT/E85E656A-FA56-4B9A-8204-8FA8A36686A0/SFX/AutoCAD_LT_2021_SWL_Czech_Win_64bit_dlm.sfx.exe
Spanish (Windows):
https://edutrial.autodesk.com/NetSWDLD/2021/ACDLT/9B276558-7E50-49DC-9FFE-9D1509CD1481/SFX/AutoCAD_LT_2021_SWL_Spanish_Win_64bit_dlm.sfx.exe
English (MAC):
https://edutrial.autodesk.com/NetSWDLD/2021/ACDLTM/2BCDE0A3-4706-4ED2-956D-26EE44B0CDBB/ESD/Autodesk_AutoCAD_LT_2021.2_macOS.dmg
German (MAC):
https://edutrial.autodesk.com/NetSWDLD/2021/ACDLTM/2BCDE0A3-4706-4ED2-956D-26EE44B0CDBB/ESD/Autodesk_AutoCAD_LT_2021.2_macOS.dmg
French (MAC):
https://edutrial.autodesk.com/NetSWDLD/2021/ACDLTM/2BCDE0A3-4706-4ED2-956D-26EE44B0CDBB/ESD/Autodesk_AutoCAD_LT_2021.2_macOS.dmg
Chinese (MAC):
https://edutrial.autodesk.com/NetSWDLD/2021/ACDLTM/2BCDE0A3-4706-4ED2-956D-26EE44B0CDBB/ESD/Autodesk_AutoCAD_LT_2021.2_macOS.dmg
The key is not working
If you have activated the key according to the guide but the code appears not to work, please check what type of error message you receive and depending on it follow the appropriate instructions: