TRMNL 7.5" (OG) DIY Kit Unboxing

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Hi
I have the TRMNL 7.5" (OG) DIY Kit which is using a XIAO ePaper Display Dev Board with XIAO ESP32-S3 Plus onboard. I have loaded the TRMNL firmware on it, and got the hardware all working fine. I want to now flash it again, however I am having trouble putting this board back in flashing mode.

I tried pressing on each of the key1/key/2/key3/reset buttons and plugging in the USB-C power cable, however it seems it never goes into flashing mode. Can someone please clarify what is the sequence to enable flashing mode?

Press and hold the boot button when connecting power (USB) and/or hold boot button while pressing reset button… very difficult with these smapp buttons… use the tip of a chopstick or something…