Dell Inspiron 7390 2n1 - Page 83

Dell Inspiron 7390 2n1

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3 Press and hold the power button for 15 seconds to drain the ea power.

4 Connect the power adapter to your computer.

5 Turn on your computer.

Troubleshooting 83

Table of Contents

Default Chapter3
- Table of Contents3
1 Before Working Inside Your Computer7
- Before You Begin7
2 After Working Inside Your Computer8
3 Safety Instructions9
- Electrostatic Discharge-ESD Protection9
- ESD Field Service Kit10
  - Components of an ESD Field Service Kit10
  - ESD Protection Summary10
- Transporting Sensitive Components11
  - Lifting Equipment11
4 Recommended Tools12
5 Screw List13
6 Removing the Base Cover14
- Procedure14
7 Replacing the Base Cover16
- Procedure16
8 Removing the Battery18
- Lithium-Ion Battery Precautions18
- Prerequisites18
- Procedure18
9 Replacing the Battery21
- Procedure21
- Post-Requisites21
10 Removing the Wireless Card22
- Prerequisites22
- Procedure22
11 Replacing the Wireless Card24
- Procedure24
- Post-Requisites25
12 Removing the Power-Adapter Port26
- Prerequisites26
- Procedure26
13 Replacing the Power-Adapter Port27
- Procedure27
- Post-Requisites27
14 Removing the I/O Board28
- Prerequisites28
- Procedure28
15 Replacing the I/O Board29
- Procedure29
- Post-Requisites29
16 Removing the Fan30
- Prerequisites30
- Procedure30
17 Replacing the Fan31
- Procedure31
- Post-Requisites31
18 Removing the Solid-State Drive32
- Prerequisites32
- Procedure to Remove M.2 2230 Solid-State Drive32
- Procedure to Remove M.2 2280 Solid-State Drive33
19 Replacing the Solid-State Drive35
- Procedure to Replace M.2 2230 Solid-State Drive35
- Procedure to Replace M.2 2280 Solid-State Drive35
- Post-Requisites36
20 Removing the Coin-Cell Battery37
- Prerequisites37
- Procedure37
21 Replacing the Coin-Cell Battery38
- Procedure38
- Post-Requisites38
22 Removing the Touchpad39
- Prerequisites39
- Procedure39
23 Replacing the Touchpad40
- Procedure40
- Post-Requisites40
24 Removing the Speakers41
- Prerequisites41
- Procedure41
25 Replacing the Speakers42
- Procedure42
- Post-Requisites42
26 Removing the Heat Sink43
- Prerequisites43
- Procedure43
27 Replacing the Heat Sink44
- Procedure44
- Post-Requisites44
28 Removing the Display Assembly45
- Prerequisites45
- Procedure45
29 Replacing the Display Assembly47
- Procedure47
- Post-Requisites48
30 Removing the System Board49
- Prerequisites49
- Procedure49
31 Replacing the System Board52
- Procedure52
- Post-Requisites54
- Entering the Service Tag in the BIOS Setup Program54
32 Removing the Keyboard55
- Prerequisites55
- Procedure55
33 Replacing the Keyboard58
- Procedure58
- Post-Requisites59
34 Removing the Power Button with Fingerprint Reader61
- Prerequisites61
- Procedure61
35 Replacing the Power Button with Fingerprint Reader63
- Procedure63
- Post-Requisites63
36 Removing the Palm-Rest and Antenna Assembly65
- Prerequisites65
- Procedure65
37 Replacing the Palm-Rest and Antenna Assembly66
- Procedure66
- Post-Requisites66
  - Procedure67
38 Device Drivers68
- Intel Chipset Software Installation Utility68
- Video Drivers68
- Intel Serial IO Driver68
- Intel Trusted Execution Engine Interface68
- Intel Virtual Button Driver68
- Wireless and Bluetooth Drivers68
39 System Setup69
- Entering BIOS Setup Program69
- Navigation Keys69
- Boot Sequence69
- System Setup Options70
- System and Admin Password78
40 Troubleshooting80
- Enhanced Pre-Boot System Assessment (Epsa) Diagnostics80
  - Running the Epsa Diagnostics80
- System Diagnostic Lights80
- Recovering the Operating System81
- Flashing BIOS (USB Key)82
- Flashing the BIOS82
- Wifi Power Cycle82
- Flea Power Release82

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