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Sep 6, 2021 at 7:58 vote accept Julian
Sep 6, 2021 at 0:07 answer added pion timeline score: 1
Sep 5, 2021 at 14:51 comment added Julian @pion Yes I have 2 same Power Adapters and tried it on both, without luck. I also tried now the SMC with the Powerbutton and Control Shift Option keys pressed for 10 seconds. Also after that no response. And I have attached a external Monitor now also without a signal there. So propably I have to go the store next week. Thank you very much for your help.
Sep 5, 2021 at 10:38 comment added pion Do you have another power adapter you can try? Have you done an SMC reset? Do you have an external display you can attach?
Sep 5, 2021 at 9:15 comment added Julian @pion No unfortunately I don’t hear any boot chime and also the key light on the caps lock don’t turn on. I also tried many of key combinations to access the recovery tools or boot picker, but here again without success. Also when I plugin the power adapter, it does not make any chime. May there is a hardware problem or something wrong with the BIOS. Thanks for your help.
Sep 4, 2021 at 20:19 comment added pion 1. Do you hear a boot chime? 2. Does the caps lock key light when you press it? 3. Have you tried booting in Safe Mode (Shift during boot), Recovery Mode (Command+R during boot), Verbose Mode (Command+V during boot), Boot Picker (Option during boot), or Target Disk Mode (T during boot)?
Sep 4, 2021 at 15:57 history edited user3439894 CC BY-SA 4.0
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S Sep 4, 2021 at 15:54 review First questions
Sep 4, 2021 at 15:57
S Sep 4, 2021 at 15:54 history asked Julian CC BY-SA 4.0