I am using beta mac OS Big Sur . one night i shut down my mac mini and morning i try to open but its continues restart. after that i try to recovery but its failed . then i formate my hard disk . when i open thats download os from internet but there is lot of error show . i try and try , progress almost finished but again 1008f error occur . when 1008f occur then i log in iCloud then erase mac . but its not done . i wait 1 day but there is same error occur . from my anger i remove my device from my account . but still same error occur . i also try to install Catalina from bootable pendrive . but pendrive show 2 time when i click on that pc restart . now pendrive not showing. how can i fix this issue. please some one help me . i am help less . last 10 days i feel very bad about it.

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