Voltage drop out

Hi,

I recently installed the A7105-500 in my devo7E already modded with the nRF24L01+PA. Everything worked well .... but no suddenly, the voltage drop out from 5.6V with full charged AA to 3.6V in 10s. Of course I checked the true voltage and it was 5.6V.... Both chips are working but it's puzzleling me .... I am afraid that I broke something in the power-in part ot the radio . What kind of checking I can do ? I installed the last nightly build... I don't think it's linked to that...

Ok ... seems to be a pb with one of the soldering point ... at GND of the CYRF ... Sorry false alert ...