My wife and I both have Aura H2O eReaders - hers is a v1, mine is a v2 (according to the serial numbers). We recently upgraded to firmware 4.38.23171 having been on 4.38.23038.
Both readers worked as expected on the earlier version. However, after the upgrade, books transferred via Calibre to the v1 eReader were not being imported. After ejecting the device, the imported progress bar got to 6% and then the eReader rebooted but the newly transferred books were not available even though they were visible in the device's folder structure.
The v2 device continued to work as expected. This was all using Calibre 7.22. To eliminate database corruption as the cause, I did a factory reset of the v1 device but it continued to fail to import newly transferred books.
I manually reverted the v1 firmware to 4.38.23038 and things all started working as expected again.
I haven't seen any other reports of this problem, so posting in case anyone can shed any light on it and in case it can help others.
Both readers worked as expected on the earlier version. However, after the upgrade, books transferred via Calibre to the v1 eReader were not being imported. After ejecting the device, the imported progress bar got to 6% and then the eReader rebooted but the newly transferred books were not available even though they were visible in the device's folder structure.
The v2 device continued to work as expected. This was all using Calibre 7.22. To eliminate database corruption as the cause, I did a factory reset of the v1 device but it continued to fail to import newly transferred books.
I manually reverted the v1 firmware to 4.38.23038 and things all started working as expected again.
I haven't seen any other reports of this problem, so posting in case anyone can shed any light on it and in case it can help others.