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- Jun 4, 2014
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What capacity cards are you using?
Are they formatted as FAT32 or exFAT?
I've got a 200GB Sandisk microSD card (formatted as exFAT using my Win7 PC) in my M1, and it works fine.
Is your M1 in its leather case, or not?
If it's not positioned properly, maybe the case is pressing on buttons, and affecting the bootup.
200 Gb exFAT cards, and no case on the M1. I have some higher-speed 256 Gb cards I'll try later tonight. It's obviously something to do with the microSD cards, because the M1 boots up in seconds with no card present. BTW, I'm using the 3.0 firmware.