yashsingh1/xdaforums huggingface dataset:
[General Questions and Answers] NMR2D2156:
The easiest method to root this tablet is to follow the guide posts to unlock the boot loader, (my device never reset-I forced a factory reset thru android marshmallow). Download the fireflash root image, and flash that to the tablet via fastboot using guide posts on here. You can also flash twrp if you like but you will have root without that recovery. It is stated if you flash the root image you will loose serial number... I never checked... But I know this method worked for me. Googling or searching rooting other phones will help with understanding the process. I agree a step by step guide is nice, but you can find the info if you research a bit before doing it. If you look at my previous posts you will see my challenges lol.
[General Questions and Answers] NMR2D2156:
Just installed lineage and gapps and same problem. Date always reverts to 1970. Only way it fixes itself temporary is to have it get time from network when WiFi is connected. Rebooting it will revert again right back to 1970.
[General Questions and Answers] GartimusPrime:
That's weird I have had lineage running with the aroma installer open gapps and for a good two weeks with reboots and have zero issues.
[General Questions and Answers] NMR2D2156:
I am new to installing roms. Perhaps it's where I got gapps from. It seemed to happen after installing that. Where did you download your gapps from? I'll try again using that site for gapps.
[General Questions and Answers] Qwzykx:
I just found the solution, and it's so simple.

I just needed to allow NTP in AFWall and enable Auto date and time. The funny thing is, I have several other devices that are Wifi only and I never had to allow NTP.

Edit: Yes it's temporary, but it's better than setting the clock manually each time.
[General Questions and Answers] NMR2D2156:
Cool. Unfortunately I will not have a constant WiFi connection. I am interested in knowing what is different about GartimusPrime setup, unless it's the same deal, he has a constant Internet connection.
[General Questions and Answers] Qwzykx:
All I can tell you is that he flashed gapps and I didn't.
[General Questions and Answers] GartimusPrime:
I don't always have WiFi. Last night I traveled 30 minutes from and back to my home (1 hour) no WiFi using my GPS and the time stayed. Also everyday I travel 20 minutes to work and the time stays. I am using Open gapps from opengapps.org. I went with the aroma installer so I could decided what I wanted installed

Edit:

I turned off my WiFi and rebooted and now I have traveled back in time to March 10th 1970. I have let bbelos know of the issue and how to reproduce
[General Questions and Answers] NMR2D2156:
Thank you both.
[General Questions and Answers] Madman_X2:
Thanks to many here who've posted, I've been able to complete steps in the root process, but I'm hung up on flashing TWRP. I'm hoping someone can help me point me in the right direction. I've read through the entire thread and my problems seem similar to NMR2D2155's in post 216. Bascially the TWRP image from bbelos seems to successfully flash to recovery, but won't launch from recovery. Instead the standard Android Recovery loads with the standard menu and "No Command" in the center of the screen. I have pretty modest goals in rooting, just keeping stock ROM for now, but may switch later. Mainly want to install adblock tweaks and xposed modules, but I do prefer the flash TWRP route so I can make a stock backup, etc. I don't mind flashing from PC, since I don't do it often.

So, here's what I've done so far:

- Started with stock image (new tablet) and performed all OTA updates, think there were 3 or 4 for mine.

- Activated developer mode, enabled USB Debugging on the tablet.

- Downloaded the TWRP image from bbelos post.

- Installed latest ADB and Fastboot from this XDA post

- Executed the commands below in w/ administrative dos box/command prompt (snapshot below)

My results:

- adb reboot recovery results in boot to stock recovery not TWRP

- manual recovery through Vol + and Power results in boot to stock recovery not TWRP

Hoping someone can help me figure out what I'm doing wrong, as I'm most certain is operator error :)

Thanks,

MMx

****************Command Prompt Snapshot**************

E:\Phones and Tablets\Lenovo x103f>adb reboot bootloader

E:\Phones and Tablets\Lenovo x103f>fastboot flash recovery twrp.img

target reported max download size of 262144000 bytes

sending 'recovery' (11706 KB)...

OKAY [ 0.375s]

writing 'recovery'...

OKAY [ 0.203s]

finished. total time: 0.594s

E:\Phones and Tablets\Lenovo x103f>fastboot reboot

rebooting...

finished. total time: -0.000s

E:\Phones and Tablets\Lenovo x103f>adb reboot recovery

E:\Phones and Tablets\Lenovo x103f>

*************************End Command Prompt Snapshot*****************
[General Questions and Answers] NMR2D2156:
Yes, seems the same as mine. I assumed it was some kind of driver issue. Not sure. I had a previously installed adb that was missing some stuff. I removed it and used the portable one noted in the topic here. After that it seemed to work. I can not give any other good explanation as mine stated it flashed too and did not. I can tell you there is a boot command to just boot twrp instead of flashing it. You could try that to at least test the twrp image integrity. That is, if it runs OK your image should be fine.
[General Questions and Answers] Madman_X2:
Thanks for the suggestion! I was able to fastboot boot the TWRP recovery image and it worked fine, so I know the image seems to be okay. I even loaded adb and fastboot on my other PC and tried to complete the process... same results... can't seem to flash the twrp recovery. Not sure what to try next. I'm wondering if it has something to do with all of the OTA updates that I applied prior to starting the whole root process? Maybe Lenovo patched something in a later OTA to prevent overwriting the stock recovery?
[General Questions and Answers] NMR2D2156:
Hmm, good thinking.. Possible, I know I read others had rerooted after getting Ota but I don't think everybody flashed twrp. So that could be a possibility. I don't think you could have gotten as far as you have without it, but did you ensure bootloader is unlocked? I have only rooted two devices using twrp, so this is a bit new to me. Throwing out ideas and not sure...
[General Questions and Answers] Madman_X2:
I followed the instructions in the front page post on how to unlock the bootloader and actually even redid that step and it came back that the bootloader was already unlocked, so I think that's ok. I may try to lock it and then unlock it again though, repeating the twrp steps again. I read on another site (for an LG device) that sometimes the twrp recovery image can be overwritten by the stock recovery image when you reboot after applying twrp via fastboot. The guy there suggested flashing twrp with fastboot, then booting the twrp image file with fasboot boot. When twrp launches (mine did), he said then reboot to recovery from the twrp menu and see if it reboots to twrp or stock. Mind did reboot to recovery with twrp as a result, but after a system reboot, android stock recovery returns.

I'm testing some steps now.... I noticed on the last twrp load via fasboot boot that I didn't get the "read only" warning that I got when I first tried to verify the twrp image, so maybe I can go ahead and attempt to install supersu to see if I can get root. If root will stick through a reboot, I'll be good... I can always follow this longer path to make future revisions as long as it works.
[General Questions and Answers] NMR2D2156:
Wow, that's good to know info. Thanks for sharing... Yeah it's interesting a reboot wiped it. I too followed an LG stylo 2 plus post to use as a basic root guide of steps to root this device. Good luck :)
[General Questions and Answers] Zemnexx:
I can tell you that I had to try a few times to get TWRP to flash completely, it was also reverting back to the stock Android recovery after flashing multiple times before finally working. I flashed via fastboot using the command. I tried it a few times, and when it wasn't working, stated over from the beginning with unlocking the boot loader again and it finally flashed. I also performed all the OTA updates before flashing, so unless they released an update in the last few days, doubt they fixed anything.
[General Questions and Answers] Madman_X2:
I think your suggestion worked... I basically re-traced all steps, including locking/relocking the bootloader. I then reflashed twrp. This time, when completing the step just after the flash (fastboot reboot), I noticed the Android logo come onscreen with "erasing...." which disappeared fairly quickly. Made me a bit nervous, but I had fastboot boot twrp earlier and made both recovery and system backups prior to taking these steps. The tablet essentially did a hard reset. I set it back up, flashed twrp once more and then did fastboot boot twrp.img and went ahead and installed supersu zip to get root. Root successful on first boot after rooting. So I then issued the adb reboot recovery command and there she was.... TWRP in all her glory. So, looks like I'm good to go.

Thanks to you and NMR2D2156... and all others who contributed pieces along the way! Much appreciated!
[General Questions and Answers] Zemnexx:
Glad to help! Enjoy :)
[General Questions and Answers] casm23:
Hey there,

I picked up two of the TB-X103F tablets in Wal-Mart's clearance sale a couple of days ago, and I'm having some difficulty getting lineage-13.0-20170219 to install.

Activating Developer Mode went OK, and there were no issues with unlocking the bootloader. TWRP 3.0.2 installed fine, and I can boot into it. /system mounts fine under TWRP. However, when trying to apply the update from external SD storage, I get the following:

E:failed to verify whole-file signature
E:signature verification failed
Installation aborted.

(Note that I get the same result if trying `adb sideload`.)

lineage-13.0-20170219-UNOFFICIAL-x103f.zip has been downloaded three times; its SHA256 hash is 5a952ece0fbbdea2a6f581af8eea31e7749adf6439248300673e25a3bcf6eb0f on each occasion. Hashes match between the copy on the SD card and the copy on local storage.

I'm afraid that I'm out of ideas at this point. Could someone please point me in the right direction?
[General Questions and Answers] NMR2D2156:
Just an idea, if you haven't done it try a different SD card.
[General Questions and Answers] casm23:
Should have mentioned that one - I've been through three different SD cards. Bear in mind that I'm getting the same error using `adb sideload`, though, so the card probably isn't a factor.
[General Questions and Answers] NMR2D2156:
Really odd... I installed lineage easy as cake from twrp... I had to wipe cache dalvik and I think I formated just about everything lol... Newbie trying to figure things out... But it worked after that
[General Questions and Answers] casm23:
Something just occurred to me, and I feel dumb for not asking this earlier.

Would someone please post a picture of the recovery screen that they see immediately after booting into recovery?

I don't want to say why I'm asking for this yet, but I will say that I am *not* seeing a screen full of Chinese characters as referenced earlier in the thread. But something has crossed my mind.
[General Questions and Answers] NMR2D2156:
Looks like this after splash screen
[General Questions and Answers] casm23:
Thanks for that. As suspected, the recovery on my device may not be the correct one. This is what I have after issuing an `adb reboot recovery`:

What I'm not sure of is why I have what looks like a CWM-based recovery - I followed the download link in the first post of this thread, which redirects to post #65. Grabbed TWRP-3.0.2_TB-X103F-beta.img from the attachment in that post, flashed it, and got the above.
[General Questions and Answers] NMR2D2156:
This is the same issue I and the other two posters before you had. Despite getting two confirmations that twrp flashed with OK twice, it did not actually correctly keep the flashed twrp. That screen you showed is the stock recovery of the tablet, unchanged... Check out a few posts before yours as to clues how to fix... So far no one has given a concrete answer why this happens.
[General Questions and Answers] casm23:
Thanks for that - it was exactly what I had suspected.

I went back and re-read the posts you're referring to. As it turns out, despite having been over them three or four times, I'd managed to completely gloss over the part where doing `fastboot boot /path/to/recovery` may solve the issue. As it turns out, once I'd done that, the LineageOS image flashed OK (along with the Gapps) and I'm now looking at the LineageOS boot animation :)

I still need to do the second tablet that I picked up from scratch. It may not happen tonight, but I'll get the process that I use for it documented once it's successful. There was too much experimenting going on with this one to really remember clearly what the sequence of events was, and I'd rather not write it up from half-baked memories of the process.
[General Questions and Answers] NMR2D2156:
Glad you got it working... :)
[General Questions and Answers] AHedgehog:
Anyone encounter Chinese after activating fastboot

Held down left side of volume control and then pressed down power button until vibration began. Released both.

Presented with large page full of Chinese with two columns at top

Near bottom there were two entries surrounded by Chinese: SD & WiFi

Thoughts ...
[General Questions and Answers] jtrosky:
It's a device testing utility...
[General Questions and Answers] alvarez3010:
Thank you all for this magnificent thread, this was the first time that i've obtained ROOT not by one of "one click root apps" . Every thing went as described on the first page of this thread. all contributors should be elevated to GODs.

After having root and TWRP working perfectly, i by mistake pressed the update the software and with the update i lost root access . I still have twrp working fine as is the updated ROM. so, my question is, do i have to start from step one or is there any advice on how to use the recovery to gain root or if i have to start from step one, is there a way not to loose the twrp recovery and then have to flash it again ? thanks everybody .
[General Questions and Answers] alvarez3010:
A few hours after and I found a supersu.zip that I have installed with TWRP and all is well now, I love this tablet. Shame we don't have Walmart in London I had to pay £130 for mine. All the best for the future.
[General Questions and Answers] GartimusPrime:
I managed to get my build environment up and running and did a successful build. If anyone is interested here is my build. There are no fixes just a sync with the repo. Also no root built in. Need to flash SuperSU for root.

https://drive.google.com/file/d/0B83FI26rMA8ZcmxSejZISERoOTA/view?usp=drivesdk
[General Questions and Answers] ilan316:
If its not an issue ,

can any one make a youtube tutorial on how to root this device

i have tried to understand what you all wrote above , but i am too beginner to try to do that without a visual help.
[General Questions and Answers] Hohobobo:
Time bug

I don't know if it's with the recovery or the ROM (leneage) but every time I reboot the time is wrong. I have to sync with network to get the correct Time. Any thoughts?
[General Questions and Answers] NMR2D2156:
This was already discussed. Appears to be a bug and was reported, unfortunately it doesn't look like it has been addressed. I am hopeful it will. I have tried a few play store gps time sync apps to sync the time, but they do not work even with root.
[General Questions and Answers] TimD123:
Do you still have this boot.img? I'm in the same boat. Or does anybody know of a mirror?

Thanks in advance.
[General Questions and Answers] TimD123:
[MENTION=2707713]aslezak[/MENTION] Do you still have a copy of this boot.img? I've tried to download it but no go and I can't seem to find any mirrors. [MENTION=786144]imo[/MENTION] didn't replace it in the .zip as far as I can tell.

Thanks
[General Questions and Answers] Bfef:
Well I picked one up from Argos in the UK for £120, thanks to this thread have successfully put the Lineage ROM on it. Many thanks to all the people who made it possible!
[General Questions and Answers] bornagainpenguin:
Just got a notice that an update was available. Anyone try it out yet?

I'm afraid to just go ahead and do it in case I lose the ability to root and flash roms. Ironically enough I'm still on stock due to being busy so I don't want to take any chances. The update file was several hundred megabytes so I'm thinking it could be a big upgrade.
[General Questions and Answers] GartimusPrime:
Hmm, since my wife has no interest in rooting or lineage I will update hers tonight. I am guessing that it is just a security update though. Very cool that Lenovo is actually still pushing out updates for such a budget device.
[General Questions and Answers] jtrosky:
Since I really haven't been using mine (I have over 10 tablets - it's an (expensive) hobby of mine), I went ahead and did a Full Unroot (from SuperSU) and then updated. The update worked fine, but it's still Android 6.0.1 with the same kernel version. Not really sure what changed, to be honest. I'll try re-rooting it shortly and report back...

My latest "thing" has been dual-boot (Windows 10 & Android/RemixOS) Chinese tablets with keyboard docks (Onda Obook 11 Plus, Chuwi Hi12, Chuwi Hi10 Pro and Chuwi Hi10 Plus). Very, very cool devices! :) Sorry, getting off-topic... Will report-back.

EDIT: Was able to re-root easily using same TWRP and same SuperSU that I used previously... All seems well.

EDIT2: Ok, I *think* I see why the update was so big... It looks like Lenovo is officially supporting this device now - it now has it's own section on their website here:

http://pcsupport.lenovo.com/us/en/products/tablets/a-series/tab-10/downloads

When you connect the tablet to you PC now (after the update), it creates it's own drive (besides the normal "Internal Storage" drive) that contains a "Mobile Assistant" application. Allows you to access all sorts of stuff on your tablet from your PC. Also, at the website above, there is a link to download the "Lenovo Smart Assistant" - which is how they want you to upgrade the device now. It seems that they don't give you a way to download the update files from the website directly though... I guess they want you updating via OTA or via this new PC application....

At least, I *think* this is all new! :) Unfortunately, I didn't "capture" the update .zip file from my tablet before updating, which is something that I normally do. Can someone else "capture" the update file after the tablet downloads it (via OTA) and before they reboot the tablet to apply the update? Would be nice to have it available...
[General Questions and Answers] Pavina:
Think the Lenovo Smart Assisstant tool has as Rescue Device mode to download temporary .zip to pc
[General Questions and Answers] GartimusPrime:
Alrighty, nothing special, just an upstream build, no fixes. March 1st security patch included. No root included.

https://drive.google.com/file/d/0B83FI26rMA8ZaFIyekl2OTFpY2c/view?usp=drivesdk
[General Questions and Answers] isaac2k10:
Anyone got a stock rooted room that's completely updated. I can't seem to successfully unroot and update. Be very appreciated. :fingers-crossed:
[General Questions and Answers] jtrosky:
The battery life of this tablet is simply amazing... I haven't been using it, but left it on - it's been on since 3/23 and estimates that it still has 10 days left (at about 35% still)! Granted, I haven't been using it, but that is still some amazing sleep time since wifi is on 24/7 and it wakes up to get emails, etc... I've never seen an Android tablet last so long.... Crazy...
[General Questions and Answers] GartimusPrime:
Stock or Lineage?
[General Questions and Answers] jtrosky:
Stock
[General Questions and Answers] GartimusPrime:
Anyone interested in a lineage build with April 1st security patch?
[General Questions and Answers] ilan316:
need help on rooting device
[General Questions and Answers] Bfef:
This is a better ROM, lots of UI changes. It just looks a lot more finished and professional.
[General Questions and Answers] Pavina:
I have stock official firmware with updates. I have locked device with pin-code. On 23. march update, I got the "add user" option on lockscreen. Do not want it.

The "Add users when device is locked" is not ticked. Tried to tick on/off. Nothing helps. Is it a general bug? I dont whant to reset device if it does not help.

Still present in april uppdate...
[General Questions and Answers] hahahin:
camera on leneage seems really dark.
[General Questions and Answers] kgorilla:
I would appreciate it!

Thanks much
[General Questions and Answers] johoso:
So the bugs with lineage are what?

1. Time is always wrong unless synced with network.

2. WiFi randomly disconnects and connects.

3. Sound is not as loud as stock ROM.

4. Camera is too dark.

Anything I forgot?
[General Questions and Answers] GartimusPrime:
I don't have the WiFi disconnecting issue.

I don't use the camera on tablets usually.

I only use headphones.

I do have the time issue but I am always connected to a network. It only seems to be when you are not connected then reboot. As long as you don't reboot it stays correct.

I have not found any bugs that make lineage unusable.

I do feel that stock battery is a bit better but not by much.
[General Questions and Answers] Bfef:
Lineage bugs on mine:

1) The clock bug

2) The first time any noise is made the speakers crackle for a brief moment. It's only the initial beginning of a sound that does it, once playing it's fine. Stock never did this - have played about with the graphic but it didn't help.

3) If I set the Wifi to turn off (settings / wifi / advanced / keep wifi on during sleep / "never" or "only when plugged in") the wifi never comes back on when the tablet is woken. I have been using the power control widget to toggle it off/on after waking the tablet.

That's all for me :)
[General Questions and Answers] alvarez3010:
I have the same problem, got the update on my sd card and flasher, flashify, rasher fail to install. my last atempt was through TWRP and all looks well and then reboots back in TWRP recovery, when i reboot to system i get a " fail to install the update "

---------- Post added at 04:07 PM ---------- Previous post was at 03:28 PM ----------

This was the first time that i''ve installed a true new android OS, i've been using it for the past 10 days and i love every bit of it. only noticed that the battery drains a bit faster then the stock rom but nothing big. great work superkudos for you . Real thank you.
[General Questions and Answers] GartimusPrime:
Glad you enjoy it. I wish I could take the credit, however [MENTION=4000778]bbelos[/MENTION] is the true winner here. I Just synced with his trees and all I can do is upstream changes, he does the fixes and such.
[General Questions and Answers] Yakuman:
Has anyone found tempered glass for this device?
[General Questions and Answers] GartimusPrime:
I use this one on mine and my wife's.

https://www.amazon.com/gp/aw/d/B01BTR7W1C/ref=yo_ii_img?ie=UTF8&psc=1
[General Questions and Answers] mmidgley:
Where do i find the stock Lenovo ROM? The Lenovo Smart Assistant doesn't seem to know this device series exists.
[General Questions and Answers] DorfPilot:
Flash Broken Tablets

Hello,

I have several of these tablets, all with Android broken. I don't know the device history.

Boot gives error: "Unfortunately process com.android.phone has stopped."

Boot on another device gives error: "Unfortunately System UI has stopped."

The devices do not boot correctly.

I would like to flash these with the stock ROM. I cannot get into Android setting to enable debug.

Can anyone walk me though what to do, or send me in the right direction?