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I need to use a different version of ADE (from 4.5 to either 3 or 4) to be able to open ACSM files. Since 3 and 4 are earlier versions to 4.5, I guess that they will not install unless I uninstall 4.5. If I do so, will I lose the books I already have on my computer?
I was able to un authorize ADE by using Ctrl + Maj + D. Then I have re-authorized ADE and it can download ACSM files. Thanks.
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No, you found your eBooks in the My Digital Edition Folder under your System. When reinstall the Software this folder should not remove. If you want to make sure you easily back up this folder.
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I have uninstalled ADE 4.5 and still have my books. I have installed ADE 3 and still have the same message: Communication problem with the licensing server E_AUTH_BAD_DEVICE_KEY_OR_PKCS12 when I want to open an ACSM file. What's next to try?
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Which operating system do you use?
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Mac OIS El Capitan. I had the same problem with Yosemite before.
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I was able to un authorize ADE by using Ctrl + Maj + D. Then I have re-authorized ADE and it can download ACSM files. Thanks.