I went to update my ipollo g1 mini and it doesn't turn on anymore

[Anynomous]

See here how to unbrick your miner by upgrading firmware via SD card.

[Help] How to unbrick miner ipollo g1 mini

The latest iPollo G1 series firmware download: version G2.54 Requires micro SD (TF) card. This is the recommended method for upgrading firmware. Upgrading by Ethernet will only overwrite certain files which can result in faults (red light indicator remaining on). One confirmed major fault being that a power outage can reset/erase your pool configurations. The latest firmware is also provided in this G1-mini fan listing: