Please help me for Rc transmitter repair

[pervinder]

Guys help me i have a Flysky Fs-i6 tx and rx both but recently i overvolted my transmitter with twice the volt supply and now it's stopped working with the required battery . please anyone from Delhi who can repair it or any repairing shop you know where it can be repaired plssssssssss help i haven't used it yet n baught it a week ago plsssss guys someone help me

[Kantesh]

Test the  resistors in power supply side  remove the resistor  check their value

[pervinder]

It's Too Complicated and i replaced my all batteries with new ones and after opening the transmitter seems nothing to be damaged or any defect
check out this video this dude had a same problem as mine having

[kunal nirmal]

Did u connected lipo to it..??