I took out my N810 after a long time and put it to charge. After sometime the device turned on and has been on a boot loop since then. It shows the boot screen and then reboots. I left it to charge for a few hours but nothing changed. To prevent it from rebooting, I booted it up in Flash Mode by holding down the swap while powering it on. The screen shows the USB icon and stays on as long as I put it in charge but as soon as I disconnect USB it goes back to the same old loop.

I tried flashing but Flasher-3.5 fails to install on Mac OS X 10.11. I tried 770Flasher but it seems to be built for PowerPC and not updated since. I tried flashing using a Windows 7 machine but the Flasher is not able to detect the device.

If you guys have any idea how to fix this, kindly help me out.