[Miscellaneous Android Development] Luke'sFather:
Lenovo TB-8304F1

Reply to Original Post:

Working on Lenovo TB-8304F1 w/ specs:

CPU: MediaTek MT8163B

Android 7.0

Software version: TB-8304F1_RF01_200302

Build number: TB-8304F1_S000020_200302_ROW

Security patch level: February 5, 2020

Dalvik VM Version 2.1.0

Factory ID: HBDG

:good: :cool: Thanks!

Reply to

Up-to-date bootless root for Magisk 20+!

:

Thanks for sharing this excellent work ! It's an amazing root method.

Few issues / improvements / clarification help for confusions :

Step #4:

I had trouble locating any Magisk APK file for installing Magisk from the link provided.

I had to extract an APK file from another installation on another rooted device (with the same O.S. and x64 bit architecture).

Step #5: Link found below last step.

Step #6: Link from first post.

Step #11:

This appears to contradict step #4, which says download and install the latest Magisk Manager apk. I was confused at first, especially since the link in step #4 did not locate an apk installation file.

But it worked for me, once I extracted the latest APK file from another installation on another device.

I think Step #11 meant to say disable automatic update of Magisk Manager in Magisk settings.

Thanks again to O.P. for sharing this amazing root method and all for all your hard work.

:good::cool:

General Warning :

After successfully using this method to root this device: <Lenovo TB-8304F1>...

I Soft Bricked the device.

I tried to use a program that requires root which rebooted the device.

Since this method does not unlock the bootloader, it failed and could not move past the boot logo. It could not boot into the operation system again.

I had to do a Hard Reset. But it was not an easy process, since this device has the "No Command" Recovery screen.

Hard Reset method for Lenovo TB-8304F1:

Power device OFF

Press & Hold "Volume Up" & "Power" buttons

Wait 3 seconds...

Release "Power";

Continue to Hold "Volume Up"

Once Options appear on screen:

Release "Volume Up"

Scroll to Recovery option via "Volume Up"

Select via "Volume Down"

From "No Command" Screen:

Simultaneously press "Volume Up" & "Power" buttons

It should take you to Recovery Options screen, almost immediately, *IF* the buttons were pressed at the *EXACT SAME TIME*

Note: It Doesn't Always Work... It's *very* finicky

If it doesn't take you to Recovery Options screen, almost immediately...

Release buttons

? Tap Power button 3 times ?

Try again

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Note: Lenovo (OEM) provided false/incorrect info for accessing Recovery Options (after requested Serial Number of Device). Their Tech advice was to Press & Hold all 3 buttons (Power & Volume Up & Volume Down) to start device... Which failed / did nothing... After that they redirected me to seek paid tech support.

Fortunately, I discovered this:

https://www.youtube.com/watch?v=wcsW7U_kuzw

Not sure if it's all 100% accurate for devices having same model number. It works for device in my possession.

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Also, adb reboot recovery doesn't get us past "No Command" screen. Only manual buttons method works.

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Good luck! Hopefully my post doesn't cause confusion and helps someone.