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Unfortunately the restore option is failing when I try from an external SSD.
Please find the error details attached in the link.
Also tried to install macos X (using Ctrl+R) I got the same error again.
Tried LAN, but That doesn't help. For the time being, I have used a pre-loaded internal SSD But a bit afraid that customer will face the same problem when they get the upgrade option.
I have tried to upgrade the os from preloaded bigsur to Montero while upgrading it's stopped
" Installation can not proceed because the installer is damaged"
What does it mean ?
"I have used a pre-loaded internal SSD
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I have tried to upgrade the os from preloaded bigsur to Montero"
I was thinking you've already booted an old macOS.
If yes, explain to the client and tell him to keep actual version.