Currently I only know of one way to install the second OTA update. That is the update that will bring you up to Android 9. It requires that you use an external SD card (even if you just insert one temporarily for this purpose). Per standard Android documentation, you should be able to install the update using ADB sideload but that method is broken. I have only had success updating manually from the external SD card.
Here are the steps to manually install OTA update #2 (Android 9) via the external SD card:
- Download the zip file for OTA #2 (I provided a link in a previous post)
- Copy that zip file to the top folder of the external SD card.
- Boot into stock recovery (power off device then press volume up and power simultaneously).
- From the stock recovery menu, choose "Apply update from SD card".
- Select the zip file for OTA #2
I don't know why the P10 currently thinks it is fully up-to-date at Oreo with OTA update #1. I know that it used to work and now it doesn't. I'm not a big conspiracy theorist, but it's almost like Lenovo rescinded the update. This happened a week after I posted the bootloader unlock instructions. Maybe they never meant for the bootloader to be unlocked and they are cooking up a replacement update. But I don't know why they would bother because we already have the copy of the bootloader that allows the unlock and they can never undo that.
I should just use Occam's Razor and go with the simplest solution... Lenovo doesn't seem to know their head from their ass when it comes to the software support of this tablet. Just look at the LMSA tool. It's practically useless. The only thing it gets right is the rescue feature that brings you to the original stock Oreo. Actually, the Qualcomm update tool should get the credit there as LMSA uses that to install the ROM in the background.
This is really great device device, especially considering the price. I have used a lot of tablets and I am very pleased with the P10. The people that designed the P10 from a hardware standpoint did a good job. Even the people who made the stock ROM for Oreo and Pie did a good job. However, the people in charge of the support software are freaking idiots.
Let me know if you run into any problems installing OTA update #2 (Android 9).