EZ-Flash Junior stuck OSINIT - another one

Hello,

I recently ordered an EZF jr from official ETSY shop, and it worked like a charm with a 2GB Sandisk class 10 (FAT32, 16KB) with Factory Firmware 1.04e

And last morning, I powered it up, and... stuck at "OSINIT..."

• Color Game Boy CGB-CPU-003
• No mod
• Fresh batteries

Same issue on Original GBA SP using wall charger.

I bought a Sandisk red, FAT32/32k, same issue.

I tried removing the battery for minutes, same issue

I tried waiting, same issue.

Tried soft...

EZ-Flash Junior stuck OSINIT - another one