Doesn't lift even full throttle

Hallo everyone,

I made Quadcopter with specification :

1. Arduflyer V2.5

2. Sunny-Sky 980 KV

3. EMAX 4in1 ESC 30 A

4. GPS Ublox neo 8n

My quadcopter doesn't lift even full throttle. Any one have solution?

Thank

PS: I'm newbie

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