I was soldering a resistor for my tp4056 board when i accidentally put solder on c3 capacitor, after i cleaned all the smd capacitor now has a black dot over it,tested with a multimeter and it gives me 0.6 and it triggers the charge terminated led, when the board is plugged the red light turns on indicating charging, the board is the clone with protection function, so... is the capacitor okay?
C3 is 100nf iirc and the multimeter applies 200ma iirc
Meter in what mode?
Can you upload a detailed photo also.
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The multimeter continuity mode, i am not home rn but you can see a black dot on the top center of the ceramic capacitor
Its very small but visible
You are testing the capacitor in circuit, yes? So you are not just testing the capacitor, you are testing everything it's connected to as well, which makes it difficult to tell if the capacitor is any good or not.
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But with no power connected to the circuit, the ceramic smd capacitor only had too much solder by mistake bc i wanted to solder the resistor
Hard to tell, it could be that the whole circuit is drawing power from the meter so it gives you a low reading.
The black dot could be flux from the solder, nothing important.
A picture would be good, if possible a schematic too, to see what that C3 do.
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The c3 controls charge completed led i think
Its just a decoupling capacitor across the input voltage supply.
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No it is a decoupling capacitor for the IC.
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From my time in a repair shop I learnt that any suspect component, especially if it's cheap, should be changed. No point agonising over whether it is or is not faulty, just put a new one in.
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Thats right to filter the noise, im so stupid lol
Well.. sort of noise, but .. anyway, as @PerryBebbington says, change the C3. If you're not up to it yourself, visit a local tv repair shop.
Assuming the OP's soldering skills are up to it - which, from the content of the OP, seems questionable ... 
could easily be a blob of solder flux. Try scraping it off with your fingernail, if it goes away and the surface underneath is unblemished, you're good.
Thanks for the responses guys, well i had a rough day and my hand was shaking like crazy, i could order smds but replacing the board costs 30 cents!!
Most chip manufacturers recommend a bypass capacitors between Vcc and ground. One for each chip (or more if there is more than one Vcc pin), and close to each chip (short traces).
Sometimes it will work without it, especially if there are several chips on the board, all with their own bypass caps... If you remove one bypass cap (or if one is missing) from a motherboard, it's probably going to work fine.
There is usually at-least one higher-value4 electrolytic capacitor in-parallel, in the power supply or on the board, but electrolytic capacitors don't "act like" capacitors at high frequencies (and the inductance of long wires/connections "don't help") so the bypass cap "takes over" and prevents high-frequency oscillation or instability.
thanks
The result of using resin cored solder. Clean with IPA and a tooth brush!