Board not working anymore

Hello I'm curently working on a Project where I'm using the nrf52dk board with the nrf52832.

I wanted to change the dimension of the data transfered with my characteristics from uint8 to uint32, to be able to transfer more data with one characteristic.

I changed in the file ble_gatts.h  the GATT struct attribute init_len and *p_value from uint8 to uint32, and under the struct of GATT attribute value the *p_value from uint8 to uint32.

Now nothing works anymore, it doesn't even advertise with the blinky example. I need to reset completely the board but with just erasing the chip I still get the same problem.

When i debug a simple example which is fresh from the sdk, so without any modificaations, i still have the same problem. I got the same problem on two different boards so it's a software problem. 

I hope you can help me to solve this issue.

Greetings from Switzerland 

Ale

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