Decrypt `update.upx` the encrypted ROM update package released by Onyx Boox, so as to get the zip format update package which can be read by Recovery directly
Wow. There really is something called the "Edu3". It's Chinese. Does it have a 3" display?
Do you have ADB working? Can you find /system/lib/libota_jni.so or /system/lib64/libota_jni.so ?
Please post it here.
Key for edu3 needed,pls help!