Update Indoor Troubleshooting guide

[KevinWassermann94]

No lights are turning on:

• add information to check that the compute module is properly seated (add pictures)
• try a different power adaptor if available
• wait for the hotspot to boot up
• on first startup wait for the hotspot to update

Hotspot is not showing in the Helium App

• wait for the hotspot to boot up before pairing

Hotspot is not detecting Wi-Fi networks

• Only 2.4G Wifi is supported

Syncing Issues

• We provide an instant sync feature that download a new snapshot on startup
• If you ever find your hotspot more than 300 blocks behind according to the local IP diagnostics you should reboot the hotspot

Add Onboarding Key Issues

• Please contact our tech support via sales@nebra.com and provide your MAC address. We will update the onboarding key for you

Add Lora concentrator false

• Reseat Lora concentrator if it is showing for the first time(with power turned off)
• Contact support if that doesn't resolve it

Add Hotspot not witnessing

• check your antenna connector/ cable
• Improve the antenna placement/ place it as high as possible

[salmanfarisvp]

Added missing informations : see https://github.com/NebraLtd/Helium-Guides/pull/306