Dell Latitude 5430 Chromebook Service Manual - Page 59

Recovering the operating system, WiFi power cycle, Drain residual flea power (perform hard reset

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The following are the steps for running the CROSH diagnostics: Steps 1. Open the Chrome browser. 2. Press + + . 3. Type in the CROSH command for diagnostics. Type help for a list of available commands. Recovering the operating system When your Chromebook's operating system (OS) isn't working properly, you can recover it. Recovery is removing and reinstalling the OS. To know how to recover your Chromebook's operating system, see Recover your Chromebook at ttps://support.google.com/ chromebook WiFi power cycle About this task If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be performed. The following procedure provides the instructions on how to conduct a WiFi power cycle: NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device. Steps 1. Turn off your computer. 2. Turn off the modem. 3. Turn off the wireless router. 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7. Turn on your computer. Drain residual flea power (perform hard reset) About this task Flea power is the residual static electricity that remains in the computer even after it has been powered off and the battery is removed. For your safety, and to protect the sensitive electronic components in your computer, you are requested to drain residual flea power before removing or replacing any components in your computer. Draining residual flea power, also known as a performing a "hard reset", is also a common troubleshooting step if your computer does not power on or boot into the operating system. To drain residual flea power (perform a hard reset) Steps 1. Turn off your computer. 2. Disconnect the power adapter from your computer. 3. Remove the base cover. 4. Remove the battery. 5. Press and hold the power button for 20 seconds to drain the flea power. 6. Install the battery. Troubleshooting 59

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The following are the steps for running the CROSH diagnostics:
Steps
1.
Open the Chrome browser.
2.
Press <
Ctrl
> + <
Alt
> + <
T
>.
3.
Type in the CROSH command for diagnostics. Type
help
for a list of available commands.
Recovering the operating system
When your Chromebook's operating system (OS) isn't working properly, you can recover it. Recovery is removing and
reinstalling the OS.
To know how to recover your Chromebook's operating system, see
Recover your Chromebook
at
ttps://support.google.com/
chromebook
WiFi power cycle
About this task
If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be
performed. The following procedure provides the instructions on how to conduct a WiFi power cycle:
NOTE:
Some ISPs (Internet Service Providers) provide a modem/router combo device.
Steps
1.
Turn off your computer.
2.
Turn off the modem.
3.
Turn off the wireless router.
4.
Wait for 30 seconds.
5.
Turn on the wireless router.
6.
Turn on the modem.
7.
Turn on your computer.
Drain residual flea power (perform hard reset)
About this task
Flea power is the residual static electricity that remains in the computer even after it has been powered off and the battery is
removed.
For your safety, and to protect the sensitive electronic components in your computer, you are requested to drain residual flea
power before removing or replacing any components in your computer.
Draining residual flea power, also known as a performing a "hard reset", is also a common troubleshooting step if your computer
does not power on or boot into the operating system.
To drain residual flea power (perform a hard reset)
Steps
1.
Turn off your computer.
2.
Disconnect the power adapter from your computer.
3.
Remove the base cover.
4.
Remove the battery.
5.
Press and hold the power button for 20 seconds to drain the flea power.
6.
Install the battery.
Troubleshooting
59