Hardware Brick when transfering content from an old 3DS to New 3DS

[Melachan]

When I was transfering the content from my old 3DS I lost the connection to internet. The New said that the source console wasn't responding, so I turned it off.

The New 3DS continued the process and worked well, nothing of my eshop data was lost. But when I turned on my old 3DS it shows only a black screen and the blue light of on.

I tried the L+R+up+A combination, I opened the 3DS to check if anything in the motherboard was wrong and isn't working. There is a way to unbrick it?
Only one time showed me a message was this:

 

[CrispyYoshi]

Did you try taking out the SD and powering on? It could simply just be menuhax

 

[Melachan]

Yes, and isn't still working. Today the button combination for recovery mode worked, but when I selected my wifi and the password, the 3DS freezes :/

 

[driverdis]

Yes, and isn't still working. Today the button combination for recovery mode worked, but when I selected my wifi and the password, the 3DS freezes :/

Sounds like a hardware problem to me.