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Tello wont initialize

bmcin33

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Jul 31, 2019
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Location
Morayfield Qld
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.
 
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.
 
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.
 
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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?
 
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.
 
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
 
Solution: I came across this post
Worked like magic!
 

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