Phantom 3 4K downgrade

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yupiter00

Well-Known Member
Hello!
Anybody could me post firmware for 4K which is older than latest?I don t know exactly with which firmware number,but previously than 1.5.4 I reached 1427 m distance without returning to bad signal or anybody can you give advice how to downgrade it?
 
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yupiter00

Well-Known Member
No I have 4K version which is not compatible with PRO version so when I with this try to update beeping and the red LED blinking...So I need to get from one copter
 
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