Tello wont initialize

[bmcin33]

I have a Tello that turns on, 1 green light, then 4 red flashes and then stops working. Only way to continue is to remove the battery and start again. I have tried different batteries - same thing.

 

[Abc74sp]

Turn the TELLO on until its flashing yellow rapidly, then press and hold the power button for 5-8s until the led goes off, then reconnect after it auto rebooting.

 

[bmcin33]

Turn the TELLO on until its flashing yellow rapidly, then press and hold the power button for 5-8s until the led goes off, then reconnect after it auto rebooting.

The Tello doesn’t get that far. Only 4 red flashes and then essentially shuts down.

 

[Garana]

Hello. I'm having the same problem. Have you find a solution?

 

[ZWActual]

@Garana

Can you elaborate more on when this occurs?

Four red flashes followed by a shutdown would (typically) indicate the Tello was overheated.

 

[Garana]

Got the solution... At least it worked out fine for me.

I contacted the Ryze Robotic Support. That light sequence: 1 green followed by 4 (or 5) quick red flashes indicates that the Tello needs to update its firmware. The instructions they gave were these:

-Press and hold the Power Button for 5 seconds when the Tello is powered off, and release it when the green indicator turns off.

-Then the indicator will pulse red. Connect to the Tello's Wi-Fi and update the firmware again by using the Tello app. Check whether the issue is resolved.

I followed those instructions and my Tello is back to life.

I hope it works for you too.

Greetings from Colombia.

 

[Bennlexx]

Got the solution... At least it worked out fine for me.

I contacted the Ryze Robotic Support. That light sequence: 1 green followed by 4 (or 5) quick red flashes indicates that the Tello needs to update its firmware. The instructions they gave were these:

-Press and hold the Power Button for 5 seconds when the Tello is powered off, and release it when the green indicator turns off.

-Then the indicator will pulse red. Connect to the Tello's Wi-Fi and update the firmware again by using the Tello app. Check whether the issue is resolved.

I followed those instructions and my Tello is back to life.

I hope it works for you too.

Greetings from Colombia.

I have exactly this problem with my Tello. I followed the above instructions and got as far as the pulsing red light but the Tello just does not appear in my Wi-Fi list. Any suggestions?

 

[Bennlexx]

Still trying to connect to Wi-Fi and have persevered with the above instructions. Following the above, pressing the start button until the green light goes off I have got as far as connecting the Tello to the "Tello Wi-Fi" however when I try to update the firmware I get the message "Upgrade failed". I note that the Tello Wi-fi is "Connected without internet". Wouldn't this mean that it can't download the firmware update? I am obviously missing something. Any help is appreciated.

 

[udig]

Still trying to connect to Wi-Fi and have persevered with the above instructions. Following the above, pressing the start button until the green light goes off I have got as far as connecting the Tello to the "Tello Wi-Fi" however when I try to update the firmware I get the message "Upgrade failed". I note that the Tello Wi-fi is "Connected without internet". Wouldn't this mean that it can't download the firmware update? I am obviously missing something. Any help is appreciated.

I am experiencing exactly the same behavior. Receiving the "Upgrade Failed" message.
Did you manage to resolve the issue?
Anyone else with a solution?
Thanks

 

[udig]

Solution: I came across this post

Unable to re-update firmware

I'll hold the power button for 5 seconds. It will glow green for 5 seconds and then it will turn off, after which I'll let go of the power button and it will start pulsating red. Standard procedure. Where problems begin is when I connect to Tello in this state, it's reading low battery (also...

tellopilots.com

Worked like magic!