Last week I encountered a ZMax receiver that took forever to read the SD Card. And after it completed registering the card (about 10 minutes), the ZMax just rebooted. I watched it happen.
I pulled the SD Card and stuck it in my laptop to check out the Micro_Z.bin.
Of course the file was 512 megabytes in size.
This won’t work! There is not enough internal memory in a ZMax to mount a Micro_Z file larger than 128 meg and I STRONGLY recommend that you use a 24-Meg file.
If you find yourself in the position, you can quickly fix it by
1. Download this ZIP file: http://www.ashgps.com/bin/MICRO_Z.zip
2. Unzip the contents to a ‘MICRO_Z.bin’ file.
3. Format the SD card.
4. Just copy the extracted ‘MICRO_Z.bin’ file to the SD card.
The smaller bin file will mount very quickly.
My theory is when the file is damaged, the ZMax builds a new one that completely fills the available SD card. And 512 Meg is just way too big.
BTW, I don’t think that the ZMax can read SD cards larger than 2 gig.