Gpio pin 2 and 6 turns on green led. But doesnt boot

Hi there, currently trying to build handheld computer project and have soldered pin 2 and 6 to Power Board with a 2100mah battery on power board. Got them to their respective pins. The tft screen comes on (connected via hdmi) and the board powerd but no booting process.

I have just come to learn that I had shorted the board from the first attemp with previous PDB. I have learned my mistake and will try agiain with new board. Thank you foruns for giving me hope. I will not give up. PLUS ULTRA