最后稻草，如果DELL电脑拒绝开机，专家会让你做这些

如果机器在保，你打电话可能他们会让你完成这些步骤。如果出了保修期，这些步骤是花钱送修前的最后稻草。有些组合键，还真是第一次学到。这些步骤可能对正常使用出问题的机器有效，对物理损坏或进水估计就没戏了。

前一段与机器人的对话只留了最后一步。前面的省略是各种常规操作大部分人都会尝试下（如电源线、拨电池）。

[2022-07-12, 9:14:48 PM] Dell Technical Support - NA: Please perform one last step by resetting the Real-Time Clock (RTC).

Please connect the AC adapter or charger, and then press and hold the power button for 30 seconds. 
The following video demonstrates how to reset the RTC: 

Note: When the AC adapter or charger is removed from the computer during the reset process, or the power button is pressed for less than 25 seconds or longer than 40 seconds, the RTC reset will be aborted.
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[2022-07-12, 9:17:54 PM] Dell Technical Support - NA: Okay. We will connect you with an expert now to assist you. We appreciate your patience while we connect you.
[2022-07-12, 9:18:41 PM] Dell Technical Support - NA: Thanks for reaching out to us.

I’m Aniket from the Dell Social Media team. I understand that you're facing an issue with the system not powering on. Please be assured that I will look into this and help you with the best available options to have this resolved for you at the earliest. 

*Step 1: Please answer the following questions* 

a) Are there any signs of power on the system?
This quick video will show you how to check:
https://dell.to/3uGtvME

b) Does the LED light on the charger turn off when connected to the system?

c) Were there charging-related issues prior to this issue?

d) Were there any recent hardware or software changes to the system?

*Step 2: Please share images of the power cord, charging pin, and charging port.*

[2022-07-12, 9:24:08 PM] Dell Technical Support - NA: I appreciate your efforts in performing the above steps. 

*Step 1: Please answer the following question*
a) Do you see any physical damage?

*Step 2: Remove the customer-replaceable units (CRU)* from the system one by one. This short video has step-by-step instructions:
https://dell.to/3cbVFZp

*Note:* Be careful while removing the parts so that there is no damage caused during the process. If you're not comfortable doing this, let us know. 

Please test the system after removing each of the components to check if there is any change. 

*Step 3: Check if the power button is working*. Use this video as a quick guide:
https://dell.to/3cd1zJy

If you're unable to power on the system using the power button, you can bypass the power button. You can learn how here:
https://dell.to/3cc2utN

Let me know if the system powers on.
‎[2022-07-12, 9:24:20 PM] Me: ‎image omitted
[2022-07-12, 9:25:08 PM] Me: A . No
[2022-07-12, 9:26:07 PM] Me: Step 3 . No
[2022-07-12, 9:26:44 PM] Me: Step2 . No removable part
[2022-07-12, 9:26:58 PM] Me: Step 1 A . No
[2022-07-12, 9:27:41 PM] Dell Technical Support - NA: Thank you for those details.

*Step 1: Perform hard reset* to release any static power that might remain in the system. Watch this video to learn how: 
https://dell.to/3Rufj2X

Let me know once the above steps have been completed and whether it helped resolve the problem.

[2022-07-12, 9:31:22 PM] Dell Technical Support - NA: To perform M-BIST, follow these steps:

- Leave the AC adapter plugged into the system.
- Hold down the M key on the keyboard and press the Power Button at the same time.
- Look at the battery LED to see if it lights up amber while both keys are held.

[2022-07-12, 9:35:29 PM] Dell Technical Support - NA: Let me know if you have tried a known good charger.
[2022-07-12, 9:36:12 PM] Me: I have another charger which works on another Dell
[2022-07-12, 9:36:29 PM] Me: I tried that charger as well
[2022-07-12, 9:36:32 PM] Me: No luck
[2022-07-12, 9:38:17 PM] Dell Technical Support - NA: Let me know if the LED on adapter lit when you connect it to system.
[2022-07-12, 9:39:11 PM] Me: LED stays
[2022-07-12, 9:39:22 PM] Me: On adapter
[2022-07-12, 9:39:35 PM] Dell Technical Support - NA: Could you share the following details meanwhile for me to set up the service?
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