[Thinkpad Tablet Android Development] ziggy815:
Hello everyone,

because we have at least 3 old Threads with TWRP for the Lenovo Tab 3 8 Plus, i thought lets make it four :)

Just kidding, i am trying to illustrate how to flash the lastest TWRP Version with boot signing by [MENTION=7737930]highwaystar_ru[/MENTION]

You should use this recovery because its working for all known Custom Roms without any trouble.

The problem with our Tablet is that we cant unlock the bootloader.But [MENTION=7737930]highwaystar_ru[/MENTION] developed this

fantastic version of TWRP that just signs the boot.img with the right signature so our Tablet does not notice

that we are using a Custom Rom.

On the end of this post you find a download link to an archive including anything you need.

If you already have an old chinese Version of TWRP on the Tab you can go straight to part 2 of this instruction

to see how to update TWRP from within an installed TWRP.

So... enough of the technical stuff lets start.

Part One, flashing the Recovery to a Device with factory Recovery:

Download an unpack the TWRP.zip to a Directory of your choice.

Now you should have an Directory that looks like this :

View attachment 4595300

Now go to the drivers directory and install the two files. No need to change any option just click thru it.

1. 1 - Lenovo_USB_Driver_1.1.41_Setup.exe

2. 2 - Qualcomm_USB_Host_Driver_1.00.40.5_Setup.exe

If those installed without problems you can now go to the Tools Directory and install QPST.2.7.460.exe

Same as above dont change anything just click thru it. Could be that it wants to install some C++ Runtime and stuff, let it do so.

Now you should have a new program group (under all programs) called QPST from here you click on QFILas shown in the picture.

View attachment 4595301

Lets fire it up and see what happens:

View attachment 4595302

First you need to click on "Flat build"(1)

Now you can click on "Browse"(2)

Here you browse to the TWRP Directory and choose "prog_emmc_firehose_8953_ddr.mbn"

View attachment 4595303

Now you click on "Load XML"(3)

Choose "rawprogram0"

View attachment 4595304

Another Filerequest will open itself, choose "patch0"

View attachment 4595305

If you did everything right, your QFIL should look like this:

View attachment 4595306

You still see the "No Port Available" that means the tablet is not connected or not recognized.

Lets change that... :)

Turn off you tablet. Hold down the Volume+ key while connecting the usb cable. Windows should

now install another driver, if it asks you to trust the driver, do so.

If you did anything right and Windows did install the driver correctly the "No Port Available" should

change to something like "Qualcomm HS-USB QDLoader 9008 (COM3)" as shown in the picture.

View attachment 4595307

Now simply click "Download" and the flashing should begin.

You should now see some messages scrolling thru the Status Window at the bottom of the Mainwindow.

When it says "Download Succeed", "Finish Download" as shown in the pic you should be done.

View attachment 4595308

Quit the QFIL programm, disconnect the tablet, hold Volume+ Key and Power Key pressed until you feel

the tablet vibrate and the Lenovo Logo appears (about 5-10 sec.) a moment later you should be in the

TWRP Recovery.

Congrats you're done and can Backup/Wipe/Flash or do whatever you want to do with it :)

Part two, only needed if you already have an older Version of TWRP already running

Copy the new TWRP-Image from the TWRP directory of the Archive to your SD-Card

Simply boot into TWRP

Click on install, as you would for flashing a custom rom.

Now click on "Install Image" and you should see the twrp image.

View attachment 4595309View attachment 4595310

Select the file and a new screen should open, here selct "Recovery" and swipe to flash.

View attachment 4595311

Reboot into Recovery and you should see the new one.

Congrats you're done and can Backup/Wipe/Flash or do whatever you want to do with it :)

Addendum :

Whenever you flash a new Firmware or anything that changes your boot.img(like Magisk, SuperSU ...)

you have to use the "Sign boot" option that you see after flashing or that you can find under Advanced.

If you dont, you will get stuck after the Lenovo Logo, but no need to worry, just reboot into twrp and

sign the boot.

I hope this thread helps anyone who does not know what twrp to use or how to install it.

Thanks to [MENTION=7737930]highwaystar_ru[/MENTION] for his great work on the TWRP and the Device/Vendor/Kerneltree for this

wonderfull tablet!

TWRP Download : https://www.androidfilehost.com/?fid=1322778262904004643

Greetings

Zig.