ipad pro 10.5 will not update ipadOS 15.0.2. Have tried all troubleshooting tips!
Tried to install ipadOS 15.0.1 and it failed. Waited for 15.0.2 and tried that and it also failed. I went online and tried as many troubleshooting tips as I could find. iTunes update did not work. I deleted the update many times and tried to reinstall (OTA and from iTunes). Nothing is working. iTunes give error message: "The <name> ipad could not be updated. An unknown error occurred (4000). WTF is error code 4000? It's not even in the error code list provide by Apple? I DO NOT want to restore my ipad! I have too much stuff on there that won't be restored even with a full backup. This is crazy. Any help is much appreciated.
iPad Pro 10.5-inch, Wi-Fi, Cellular