Recorder button spoiled, can't boot after flashing

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My recorder button is broken (confirmed after opening casing, button solder broken) and after I flashed with the kitchen, I'm now stuck in 3 colours screen but I can't activate the No, Yes, Yes routine to format my BA.

Anyone can help?

PS:
Connected O2 repair centre and was told replacing the motherboard will set me back by US$438.

Bite the bullet and use my soldering iron. Do the soldering was not very nice, it solved my problem. I'm playing with the kitchen now.