[Android Q&A, Help & Troubleshooting] Dead2:
So, I have spent about 5 hours attempting to find a way to dump the firmware without first rooting the device, so that I could share it with you guys (and have a backup for myself in case I attempt to root it myself.) Unfortunately it seems like it needs to be rooted before I can create a nandroid backup through adb. Unfortunately the tablet is not based on mtk, and I cannot find any qualcomm utils that can dump the firmware.

The one Qualcomm util I found (QFIL) seems like it is only for flashing, and for backing up some individual data for the tablet (I assume it may contain such as license keys for the commercial features in the recent phones such as Sony Xperia Z3). I also looked into fastboot, and that too can only flash a new firmware.

So, unless the tablet gets rooted I don't see any way to make a proper backup.

I am unable to post links in messages, so you need to do some manual editing.

This however seems like very valuable information, unfortunately the only places I can find that has this available for download is charging money for access to the file.

50$ at dlgsm,com www DOT dlgsm DOT com/register.php?file=TB2-X30F_USR_S000015_1601151950_Q8009_ROW_qpst.zip&dir=%2FFLASH-FILES%2FLENOVO%2FT_Series%2FTB2-X30F

or from 10$ at pars-hamrah,com: www DOT pars-hamrah DOT com/%D8%A7%D8%AE%D8%A8%D8%A7%D8%B1-%D9%85%D8%B1%DA%A9%D8%B2-%D8%AF%D8%A7%D9%86%D9%84%D9%88%D8%AF-%D8%A7%D8%AE%D8%AA%D8%B5%D8%A7%D8%B5%DB%8C-%D9%BE%D8%A7%D8%B1%D8%B3-%D9%87%D9%85%D8%B1%D8%A7%D9%87/38027-%D8%B1%D8%A7%D9%85-%D8%A7%D9%88%D8%B1%D8%AC%DB%8C%D9%86%D8%A7%D9%84-%D9%84%D9%86%D9%88%D9%88-lenovo-tb2-x30f-%D9%86%D8%B3%D8%AE%D9%87-s000015-%D8%A7%D9%86%D8%AF%D8%B1%D9%88%DB%8C%D8%AF-5-1-1-%D8%AF%D8%B1-%D9%85%D8%B1%DA%A9%D8%B2-%D8%AF%D8%A7%D9%86%D9%84%D9%88%D8%AF-%D9%82%D8%B1%D8%A7%D8%B1-%DA%AF%D8%B1%D9%81%D8%AA.html"]Here[/URL]

It might also be available www DOT fars-gsm DOT com/75531-tb2-x30f_usr_s000015_1601151950_q8009_row_qpst-zip.html, at least they list the changelog for the firmware.

Since I have no use for a firmware right now, I will not be buying access to one (unless I at some point manage to brick mine as well). But if anyone decides to do so, please share it so others can enjoy it as well. I also suspect that if the file was available, it would increase the probability of someone attempting to make a custom rom at some point as well, it is a very cheap tablet when on sale, so it should have good potential for a community.

PS: I also stumbled over something called vRoot, that might be an alternative to Kingroot, although I have no idea whether it is as good at rooting and not installing unwanted extra apps. I guess someone who has used it on a tablet/phone that has a backup available might be able to shed some light on that.

---------- Post added at 08:08 PM ---------- Previous post was at 08:02 PM ----------

This is the QFIL (Qualcomm Flash something system) mode, however I do now know whether that helps anything at all. Since it seems to me it probably wont accept the TB2-X30F_USR_S000015_1601151950_Q8009_ROW_qpst.zip file mentioned in the thread. It seems to expect some xml file, maybe the zip file contains that?