Lenovo Yoga 2 1050L - The tablet does not work after upgrading to Android 5

Hello.

Tablet Lenovo Yoga 2 version with LTE or 1050L. The tablet worked under the control of Android in 4 versions. After starting, he notified about update to 5 and asked whether to update, I gave it yes. After downloading, the tablet rebooted, had quite a long time. After grinding, he showed 4 options in Chinese that you could navigate with the + / - key. I found info on the net about choosing the right option and chose it. Now the case looks like this - the tablet turns on, the Lenovo logo is shown and that's it. After connecting to USB it detects the drive "Lenovo_Suite" and you can install drivers from it. Also, you can't turn on the tablet ...

How to act in this situation?

Upload him all the firmware again. https://firmwarefile.com/lenovo-yoga-tablet-2-1050l

I have downloaded, the tablet works. I currently have Android version 4. Is it worth going to version 5 by updating OTA?

This update can be manually installed.

The first update attempt has just ended up tamping the tablet. I don't know why, but he didn't get up. I have now uploaded kitkat, then updates to 5.0 and tablet is running.