can a martingale strategy ea really works?

it depends on how much capital...

at the moment i'm using these settings;

1) capital = usd3000

2) initial lot = 0.01 (InstaFX)

3) account = eurica (1 pip = 1 cent)

4) leverage = 1:500

5) target = 20-50usd daily (10-30% monthly)

6) ea setting pips = 10

7) ea setting takeprofit = 20

8) pair = EUR/GBP