Lenovo Yoga Book YB1-X90L Android 7.1.1 update notes

YB1-X90FL-Android7.txt

Yoga Android 7.1.1 update notes!
Models: YB1-X90F and YB1-X90L (LTE needs to be added back, not covered here)

seamonkey420
created: 9/21/2024
updated: 10/16/2024

Wait to plug in yoga to pc!

Pre-req work:

-On Tablet, enable developer options and enable OEM unlocking and usb debugging
	to go about, tap build version until it says developer options unlocked
	go back to developer options and enable OEM unlocking and usb debugging

-Install Intel Platform Flash Tool Lite 5.8.9


-Driver installs for Intel Android ADB - https://www.intel.com/content/dam/develop/external/us/en/protected/IntelAndroidDrvSetup1.10.0.zip

	be sure to disable driver signature check in windows, reboot and F8 - advanced startup options - enable unsigned 	 drivers: 
	https://www.tenforums.com/tutorials/156602-how-enable-disable-driver-signature-enforcement-windows-10-a.html
	choose install when red prompts popup

-get platform-tools from google - https://developer.android.com/tools/releases/platform-tools

-use adb to reboot to recovery/fastboot

-in fastboot, unlock bootloader, wipe cache and factory reset, leave in fastboot mode

1 Extract firmware zip to folder, android 7.1.1 = YB1-X90F_USR_S100043_1709020000_WW08_BP_ROW-flashfiles

2. Open Intel Platform Flash Tool, dont change any settings

3. Click browse and then choose the flash_update.json and then click Start to Flash

4. Once finished, it will reboot and load up. If it doesnt load up in 5 mins, power off and back on and should load (i had to do this)

bootloader will relock after update

----------------------
Halo keyboard will not work until you do these steps (Thank vimalbhimani from xda for the solluction)

a) Open ‘’contacts’’ app, create a new local contact ” test”
b) Click search button at contact app
c) Input ####6020# code into search bar (and wait a few sec)
d) a list of country codes will po up, browser the country code list, then chose country code US and click OK
e) Then device will reboot and update, you should be able to use halo Keyboard after that.
f) If devices hangs on lenovo orange logo, just hold power until you feel it vibrate, then power back and it will load into the Halo intro!
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--Sources for information--

-all files needed including drivers, flash tool and firmware and some notes - Oct 16, 2024 upload date
https://mega.nz/file/N48DiKqQ#AVQ_hLVesHr5nh728xffwHQiNrj7PXQwGDAvZ6zWjOI

-this link is down at the moment, alt with all files needed provided above as of Oct 16, 2024
https://archive.org/details/yb-1-x-90-f-usr-s-100043-1709020000-ww-08-bp-row-flashfiles

-for info about why adb drivers would not show up in windows 10 pro 64bit
https://xdaforums.com/t/missing-usb-driver-cherry-trail-tablet-while-on-bootloader.3537008/

Hi,
I have read your post. And would like to Update the Tab of my girly.
But I don't finde the Flash files. And the Link here does not work.
Can you put it somewhere, that I can download it?

hello. yes i am working on adding a megaupload link right now and will include said link. prob be ready in an hour or so (slow upload speeds atm)                                         

Hi, I have read your post. And would like to Update the Tab of my girly. But I don't finde the Flash files. And the Link here does not work. Can you put it somewhere, that I can download it?

here is a working link!
https://mega.nz/file/N48DiKqQ#AVQ_hLVesHr5nh728xffwHQiNrj7PXQwGDAvZ6zWjOI