I always keep my books are on the inserted 32GB microSD on my H2O.
I have added some books to microSD using Calibre(64bit 2.60.0 on Windows 10 Pro x64 laptop) and everything went well. But the total no. of books on device does not tally. Thought of removing all the books and start afresh. Deleted all the books from the Library menu.
Added some books using the Calibre to microSD and everything went well. Then I added few more books to the microSD and ejected the device. The processing books bar has appeared and that bar stayed for long time at 6%. I waited and waited and nothing happened. Tried to reset with a single poke on the reset button in the bottom. This restarted the device and again the processing books bar appeared with no progress. After waiting for long time thought something is wrong with the library. Shutdown the device and removed the microSD and restarted the device. The device does not restart and was at a blank screen. Then connected to standalone USB charger and left it alone for few hours. Afterwards found the device booted and seems working.
Thought of doing a clean factory reset from Settings and everything went well. Updated to the latest firmware through Wi-Fi. Left the device without adding any books for few hours. In the night I was going through various menus in the device to check. When I tried to open the Library menu in Settings, suddenly the system hanged with a white screen. Tried to boot with power button but nothing happened.
Next day morning read most of the posts from the Mobileread forum for rescuing the H2O and tried all the tricks explained in them. Tried the reset button with pin, Tried the double tap in the bottom screen with power button. The screen blinks twice and goes back to white screen. Sometimes the power light appears continuously brightly, sometimes it blinks and other-times it just appears dim or switches off.
Charged the device for few hours. Tried connecting the device to the laptop. I get the ding dong sound (which we get when a flash drive or an external drive connected), but the H2O's internal drive does not appear on PC. Pushed the reset button few times. The computer makes the sound of disconnecting USB drive and reconnecting.. but nothing happens. Only the Blank white screen. No squares or black screen...
(Image of Aura H2O attached). You can see the power light glowing in the image. But the screen illumination LED lamps in the bottom are switched off. I am sure the screen is not broken.
I have tried almost all the tricks available on Internet. This device I bought in US in November 2015 through Amazon and now I am in Saudi Arabia. I can not return it on warranty repair.
I have the image of H2O courtesy of frostschutz. But I don't want to open the device until the last resort. I appreciate any help from the members.