Where is the serial connector of a EX7300?

I have a Netgear EX7300 that I installed OpenWrt on and configured as an Extender, for some reason it now refuses to connect to my network, I have tried to connect trough with a wire but it still doesn't open a connection even if I have a static ip, I know that it is working because it emits wifi.

I am now trying to connect trough serial to give it a factory reset, does anyone knows where the serial connector is, or can you give me a suggestion that I haven thought about how to fix the problem.

already tried https://openwrt.org/docs/guide-user/troubleshooting/failsafe_and_factory_reset ?

Serial's probably the four pins in the upper left corner, on the 1st internal photo at https://fccid.io/PY318300422/

Manged to open it, there is something weird with those pins as none of them are a ground pin, the only ground pins are in the power connector, the 4*2 connector half the pins are GND the other half are 5V.

I tried to hard reset button but so far It hasn't done anything and now that I opened it it is beeping when powered.


Beeping problem solved, I had made a mistake while re connecting the power supply, multiple times, one side of the casing holds the main board and has to be closed by hooking some tabs at the top and then closing the bottom where the connector is an you can only see part of it through the ventilation holes. A warning to anyone else that has to open theirs.

I am going to try the other methods to see if they work.