yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] fujihau:
Thank you for posting this guide. I followed it and was successful in rooting my Lenovo Tab2 A8-50F. I only had one issue and was stuck for hours on step 4. I had the hardest time finding the device driver for this device. I eventually found the driver from the above mentioned Russian Lenovo forum:

http://lenovo-forums.ru/index.php?app=core&module=attach&section=attach&attach_id=39196
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Please, share your backup.

Hi, I have a tablet Lenovo Tab 2 A8-50F and brickeв my tablet. Now, I want to restore my android rom. Please, help me.

Can you backup your android lenovo a8-50f system and to send.

specifications of my tablet:

Lenovo tab 2 A8-50F 8" display.

Thanks.
[Android Q&A, Help & Troubleshooting] :
Just received a new OTA update (Dated 23.10.15), no detailed changelog apart from "Bugfixes & Stability", but seems to have fixed the white flashes in the YouTube app when it changed video quality & also the preview window of playing videos which when slided went white.

Sadly none of the other issues I previously mentioned have been fixed.
[Android Q&A, Help & Troubleshooting] Max_Cohen:
I am bricket my Lenovo.

Hi,

I am bricked my tablet Lenovo TAB 2 A8-50F. I can't load the system. This is show only this:

After a few seconds, restarts. And so on... Until I am myself turn off the tablet.

Can you help me? What I must to do?

Does anyone to help me to send a stock files: preloader.bin. lk.bin, boot.img, recovery.img, system.img?

Thanks.
[Android Q&A, Help & Troubleshooting] mars28:
@up: How did you brick it? Did it happen while doing root procedure? There is one "not used" answer in root guide poll, but it's not your vote. I needed to buy a new tablet after I bricked my Ainol Aurora II, and I decided to buy Lenovo right after I saw it has been rooted by guide's author, but it would be nice to know if there might be some unexpected difficulties.
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Hi. I have a lenovo tab 2 a8-50f tablet. And I done it be as root. If you want to root this tablet, you should must to take backup your recovery.img back up. If you don't know to do this, I can help you, but if you want to buy a lenovo 50f.

I am bricked it, when I install there a 50LC firmware.
[Android Q&A, Help & Troubleshooting] Sir Jaxxy:
How do you backup your recovery.img before rooting?
[Android Q&A, Help & Troubleshooting] fujihau:
Make sure to make a backup of the stock ROM of the device. You may need it if ever want to get the latest OTA updates. The modified boot and system images from the root guide will prevent OTA updates.
[Android Q&A, Help & Troubleshooting] mars28:
@up: How can I make that backup? This is the first thing I want to do, before rooting. Can I use SPFlashTools to do it?
[Android Q&A, Help & Troubleshooting] Max_Cohen:
I am backup my lenovo by flash-tool.exe.

---------- Post added at 10:25 AM ---------- Previous post was at 10:22 AM ----------

Yes, you can. This is the simple method to do this.
[Android Q&A, Help & Troubleshooting] mars28:
I'd be grateful for little help in making full stock ROM backup. I assume it should be done exactly the same way as backing up system partition, as described in root guide, right? Start address is shown in scatter file, right? I.e. recovery start address is 0x3d80000. But how to find end address? I'm not good at binary math. SPFT shows 0x0000000 in "end address" columns. And what full backup means - preloader, lk, boot, logo, secro etc.?
[Android Q&A, Help & Troubleshooting] fujihau:
There is a guide that [MENTION=5006081]Inside 4ndroid[/MENTION] linked a few post back that details how to make a full ROM backup:

http://xdaforums.com/showthread.php?t=2540400

The start address, length, and region for each part is listed in the MT6735_Android_scatter.txt file:

preloader 0x0 0x40000 EMMC_BOOT_1

lk 0x1c80000 0x80000 EMMC_USER

boot 0x1d80000 0x1000000 EMMC_USER

logo 0x3d80000 0x800000 EMMC_USER

secro 0x5200000 0x600000 EMMC_USER

tee1 0x6000000 0x500000 EMMC_USER

tee2 0x6500000 0x500000 EMMC_USER

system 0xb000000 0x74000000 EMMC_USER

cache 0x7f000000 0x19000000 EMMC_USER

userdata 0x98000000 0x60000000 EMMC_USER
[Android Q&A, Help & Troubleshooting] Max_Cohen:
How to backup you ROM by Flash-tool.exe

Hi, I can show you, how to create all img-files. Please, just repeat this. Thanks. This is only to CPU MTK6735! Not else other!

1. Open flash-tool.exe.

2. Go to tab "Readback".

3. Push the "Add" button.

4. In the appear list, in the file column double click.

5. Save the file as "preloader.bin".

6. In this window, repeat:

[IMG="1"]http://s49.radikal.ru/i125/1510/d9/f5dd47e60ec0.png[/IMG]

[IMG="2"]http://s019.radikal.ru/i607/1510/a0/4647b0b6ee90.png[/IMG]

7. Then add else one, as there and double click in file column:

[IMG="3"]http://s020.radikal.ru/i718/1510/78/2550c51a6d37.jpg[/IMG]

8. Save as "LK.bin".

[IMG="4"]http://s013.radikal.ru/i323/1510/02/1c67f60c132e.jpg[/IMG]

9. Then do as this:

[IMG="3"]http://i057.radikal.ru/1510/b1/7d43af7ce434.png[/IMG]

Region address: 0x01c80000

Length: 0x01d00000

10. Then do by steps above:

Add a new, file names, just repeat this. If you need texts, so there:

[IMG="6"]http://s019.radikal.ru/i641/1510/ff/5a1ec16635a8.png[/IMG]

file_name: preloader.bin

Start Address: 0x0

size: 0x40000

Region: EMMC_BOOT_1

file_name: lk.bin

Start Address: 0x1c80000

Length: 0x80000

Region: EMMC_USER

file_name: boot.img

Start Address: 0x1d80000

Length: 0x1000000

region: EMMC_USER

file_name: recovery.img

Start Address: 0x2d80000

Length: 0x1000000

region: EMMC_USER

file_name: logo.bin

is_download: true

Start Address: 0x3d80000

Length: 0x800000

Region: EMMC_USER

file_name: secro.img

Start Address: 0x5200000

Length: 0x600000

Region: EMMC_USER

file_name: trustzone1.bin

Start Address: 0x6000000

Length: 0x500000

Region: EMMC_USER

file_name: trustzone2.bin

Start Address: 0x6500000

Length: 0x500000

Region: EMMC_USER

file_name: system.img

Start Address: 0xb000000

Length: 0x74000000

Region: EMMC_USER

file_name: cache.img

Start Address: 0x7f000000

Length: 0x19000000

Region: EMMC_USER

file_name: userdata.img

Start Address: 0x98000000

Length: 0x60000000

Region: EMMC_USER

[IMG="7"]http://s019.radikal.ru/i641/1510/ff/5a1ec16635a8.png[/IMG]

11. Turn off your tablet.

12. In the flash-tool, push the button "Readback".

13. Connect your turned off table to PC with usb cable.

14. In the flash-tool will start copy your tablet images in your PC, where you show place to save. [IMG="3"]http://s020.radikal.ru/i704/1510/10/f4f314c6ac07.png[/IMG]

15. Then send me the saved images.

I am so thank you. If you don't understand, I can write to how do this.
[Android Q&A, Help & Troubleshooting] mars28:
Is the boot.img file the same for all Lollipop versions? My tab has 5.0, and the author of the root guide has 5.0.2. And what will happen when I first upgrade my tab to LP 5.1? Can I use that modified boot.img file too?
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Nothing.

Hi. Nothing.

Before do backup. Full backup your tablet.
[Android Q&A, Help & Troubleshooting] mars28:
Today I tried rooting. And I have a problem after STEP 5:

"Now you should have the ability to flash the boot. Type into cmd "fastboot flash boot boot.img" the device will let you know it is done and when it is done flashing just type into cmd "fastboot reboot" and let the device fully boot and goto the next step."

After typing "fastboot reboot" tablet rebooted, but suddenly big green droid appeared on the screen, with text "deleting" below, and after few seconds tablet rebooted again, and now is stuck on "lenovo" logo. What should I do now? Should I try to flash modified system? Or maybe insecure boot.img was deleted when that droid appeared? How to turn tablet into fastboot mode now?

Or maybe I understand "let the device fully boot" wrong? Does it mean full boot to working system?

I've read "boot" again witf SPFT and the insecure boot.img is there, not the original one. So it haven't been deleted after reboot.
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Your tablet is Lenovo Tab2 A8-50F? If yes, then repeat all from begin.
[Android Q&A, Help & Troubleshooting] mars28:
I don't know how to start the tablet in fastboot mode. It is stuck on "lenovo" logo.
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Hi, first restore your tablet by your stock rom bacup. Then repeat the steps. It is work. Maybe you do something wrong.
[Android Q&A, Help & Troubleshooting] nulda:
Hi,

have someone full backup of A8-50F ? I bricked it :-/

Thank you
[Android Q&A, Help & Troubleshooting] mars28:
Check 1 or 2 pages back, there is a link to root guide, and there you should find it.
[Android Q&A, Help & Troubleshooting] nulda:
I found this link, but there is no files to download
[Android Q&A, Help & Troubleshooting] mars28:
I'm 100% sure it's there. Check the section "REQUIREMENTS/DOWNLOADS:" at the top of that post. There is a green link "DOWNLOAD". After unpacking, the scatter file you'll find inside SPFlashTool folder.
[Android Q&A, Help & Troubleshooting] nulda:
Yes, I found this, folder called ROOT but SPF tool say: brom error s_dl_get_dram_setting_fail (5054)

I tried downgrade from Android 5.0 to 4.4 but it failed. Now Lenovo is dead. Can't turn on
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Hi,

Can anyone send me files: "PRELOADER.bin", "LK.bin", "BOOT.img", "RECOVERY.img", "LOGO.img" ?

I have a problem. When the tablet goes to sleep mode... Then I can't turn it on (display not turn on) when I press "ON/OFF" button. I think, this is problem with one of the upper files.

Thanks you.
[Android Q&A, Help & Troubleshooting] mars28:
I followed instructions, installed adb drivers, mtk drivers, and SPFT works like a charm with attached scatter file. Maybe you did something wrong.

I still haven't rooted my tab, but I'm working on it.
[Android Q&A, Help & Troubleshooting] nulda:
https://cloud.mail.ru/public/Fn6t/DAr7cqfZk There is files for SPFT

Lenovo A8-50F

Tablet is now ready to use.

---------- Post added at 12:50 PM ---------- Previous post was at 12:05 PM ----------

Now I need files for SPFT on Android 4.4. Have somenone?
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Hi, this is to me?

I think, you can't downgrade your tablet android 5 to android 4.4. Because, by Lenovo there is no suck version.
[Android Q&A, Help & Troubleshooting] mars28:
It seems my tablet became un-rootable. I thought LP 5.0 was the problem, so I upgraded to 5.0.2. And then I did the whole procedure from the beginning, step by step, I think I did everything right, and it still didn't boot after step 5. [MENTION=452453]INSIDE[/MENTION]4ndroid, if you're still around, please, a little help is needed.
[Android Q&A, Help & Troubleshooting] nulda:
Yes, it is for you. It is a pitty. But my tablet has 4.4 So someone has backup 4.4 maybe...
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Hi, this is work! My problem with sleep mode and can't turn on it back when press ON/OFF button problem was been solved by you! Thank you very much!
[Android Q&A, Help & Troubleshooting] nulda:
:good:
[Android Q&A, Help & Troubleshooting] mars28:
Have anyone heard about other way of rooting this tablet? Working Kingoroot or something? I really don't want to sell this tablet and buy other rootable one, because I really like this one, but without root it's just crippled.
[Android Q&A, Help & Troubleshooting] Max_Cohen:
I can send you my boot.img and recovery.img if you need. My old image of tablet (wich has a problem with sleep and power on/off button) I can send you. May be it help you.
[Android Q&A, Help & Troubleshooting] mars28:
If you took them from "root guide files pack" then it won't help, I think, but I can try them. The problem is my tablet after unlocking bootloader and flashing insecured boot.img reboots, but then it deletes something, something about guide author didn't say a word in his guide - there is a big green droid with "deleting" text below. Maybe it locks bootloader again, that's why after next reboot it's not booting, I don't know.
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Hi,

this is... I don't know wich is work. Please look and upload. Must work.

https://yadi.sk/d/u524nMuwkvHPF

https://yadi.sk/d/BviyrOtikvHPt

Thanks.
[Android Q&A, Help & Troubleshooting] atcrist:
I am having trouble with flashing the recovery.img

when i try to fastboot flash recovery recovery.img i get a remote: download permission denied partition 'recovery'

and im not sure how to fix this.

any help??
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Hi, you must upload this image files by Flash-tool.exe.
[Android Q&A, Help & Troubleshooting] mars28:
I tried many times, still no luck. The only thing I discovered is that my tablet after unlocking bootloader, relocks it again after restart. So how can I unlock the bootloader? I don't see the option "allow bootloader to be unlocked" in developer options. I think this is the problem. [MENTION=452453]INSIDE[/MENTION]4ndroid mentioned about this in this thread, in the OP ("first enable usb debugging and make sure oem unlock feature is enabled in developer options"), but he didn't say a word about this anymore in root guide. Anyone has that option? If yes, what is the version of Android that has this option?
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Hi, do you know how to show "Developers Options" in Settings?If you don't know how do this: please google "how to enable developer options in android". If you know, then you must in Charge Mode choose Enable Debugging. If you don't know, you can find this in google.
[Android Q&A, Help & Troubleshooting] mars28:
I'm talking about " oem unlock feature in developer options", not the developer option itself. I'm using android phones and tablets long enough to know how to enable developer options, usb debugging etc. ;)

Without mentioned option present in "developer options" I'm unable to unlock bootloader permanently. After unlocking in fastboot mode, the tablet locks bootloader again after reboot. Looks like nobody knows how to avoid that, and [MENTION=452453]INSIDE[/MENTION]4ndroid is not here anymore, unfortunately.
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Do you repeat all step in post? If yes, it must work. Because I am do all in post, and I have a root.
[Android Q&A, Help & Troubleshooting] mars28:
Do you have "bootloader unlock" feature in developer options?
[Android Q&A, Help & Troubleshooting] Sir Jaxxy:
Has anyone found a way to root it without having to use Linux?
[Android Q&A, Help & Troubleshooting] mars28:
I've rooted my tablet, finally. Android version matters, really. After upgrading to 5.1, everything went nice and smooth.
[Android Q&A, Help & Troubleshooting] Sir Jaxxy:
Did you do it using the guide linked in the OP with using Linux?
[Android Q&A, Help & Troubleshooting] mars28:
Yes, I followed the [MENTION=452453]INSIDE[/MENTION]4ndroid's guide. It's not hard to do, you can use virtual machine with any Linux distribution (I was using Ubuntu) to modify "system.img".
[Android Q&A, Help & Troubleshooting] Gromit1996:
Is there any 'easy' way to root this device and apply a custom Rom?
[Android Q&A, Help & Troubleshooting] jayzon915:
I am also running into this problem. Did you figure it out?
[Android Q&A, Help & Troubleshooting] atcrist:
Yes I actually just used flash tool to flash the recovery img on my tablet. It worked like a charm and I've been rooted for awhile now everything running smoothly.
[Android Q&A, Help & Troubleshooting] jayzon915:
Perfect! It works and I was able to get rooted. Excellent!
[Android Q&A, Help & Troubleshooting] atcrist:
:) great to hear!
[Android Q&A, Help & Troubleshooting] VeZReVouLiS:
Hello,

I asked also in the root thread but i will ask again here since this thread is more popular that the other.

Yesterday i bought Lenovo tab 2 A8-50 with MT-8735.

The root guide will work with this or i have to search for specific guide?

Thanks in advance,

Dimitris
[Android Q&A, Help & Troubleshooting] profchaos1981:
hello and thank you for the guide.

I have upgraded to lollipop 5.1 .

Can i still use this guide to root the device?
[Android Q&A, Help & Troubleshooting] mars28:
Yes, you can. In fact, from my experience, it looks like upgrading to 5.1 is necessary. I tried many times (5.0, 5.0.2) with no luck, after upgrading to 5.1 (first release) everything went nice and smooth. I haven't tried upgrading to newer 5.1 release, because I read it has some new bugs and battery drains faster.

Don't forget to make full rom backup.
[Android Q&A, Help & Troubleshooting] boss0285:
To anyone having trouble getting through the guide I am a novice to android OS's and have rooted using the guide within this thread if it helps:

I used windows 7 64bit

and had to flash the recovery file using SPFTools worked like a charm.

I cant really offer much other help other than I tried the same guide using windows 10 and it for some reason was a no go no matter what I did so I made the switch back to 7 and Im rooted.

Thanks.
[Android Q&A, Help & Troubleshooting] Gromit1996:
I found this guide on Lenovo's forum site. Anyone know if this would work?

https://forums.lenovo.com/t5/Androi...ow-to-Root-a-Lenovo-Tab-2-A8-50F/td-p/2226421
[Android Q&A, Help & Troubleshooting] hamedfarahabady:
hello tanx for your help.

I want to know How I can root LENOVO TAB 2 A8 50 LC .

media tek MT6735

android 5.0.2

kernel version : 3.10.65 (A8-50LC_S000021_150623_ROW)
[Android Q&A, Help & Troubleshooting] Sakata San:
Can you guys reupload all of the files needed to root this tablet?

This will be my first time actively trying to root without just simply getting root by flashing something..
[Android Q&A, Help & Troubleshooting] smrtdrmmr:
Bricked and not turning on

I too am in the boat where my tablet is bricked and not turning on. I have followed the instructions to re-flash the recovery image with the flash-tool, and that seems to work (it says success) but doesn't turn on when I restore power to the tablet after disconnecting it from my Windows 7 laptop. Does anyone have the other stock elements of the ROM that could be flashed or anyone have any ideas of what is necessary to get it working?

Steps to reproduce:

1. Disconnect battery from tablet

2. Start download of recovery image with scatter plot found here https://forums.lenovo.com/t5/Androi...ow-to-Root-a-Lenovo-Tab-2-A8-50F/td-p/2226421 It waits for connection of the tablet to my PC

3. Connect tablet to PC and Windows makes the audible "connected" sound. Recovery image downloads to tablet and success message appears

4. Windows makes the audible "disconnected" sound automatically

5. I disconnect the tablet from the PC and reconnect power via the battery

6. I try turning on the tablet with the power button or volume down and power button but nothing happens (screen does not turn on, etc)

Any assistance is greatly appreciated.
[Android Q&A, Help & Troubleshooting] Max_Cohen:
Hi, you can download my ROM image, then by SFTool to recovery this. When my tablet is bricked, I do this and my tablet is work. Thanks.
[Android Q&A, Help & Troubleshooting] smrtdrmmr:
Thank you!

Thanks [MENTION=7029339]Max_Cohen[/MENTION] for your help and sharing your working ROM https://yadi.sk/d/Ii0LAabHoeCYp My tablet is turning on and working again. So happy!
[Android Q&A, Help & Troubleshooting] Jspex:
This is the method I used and I haven't lost recovery yet
[Android Q&A, Help & Troubleshooting] Gromit1996:
Other than being able to do more root-y things, what else is capable? Can I install Cyanogen or some other flavor of Rom?
[Android Q&A, Help & Troubleshooting] Jspex:
I have not found any roms for this device just yet but after some work I got xposed installed and am running a hand full of mods that turned this little $100 tablet into a pretty nice media/content device for me.

I hope to find someone working on roms for this device but am not holding out too much hope in that respect.
[Android Q&A, Help & Troubleshooting] Gromit1996:
What exact guide did you use to root your tablet? A link would be great. Also, if you could point me to a tutorial for xposed framework, that would help me a great deal.

Are you using the tablet with Kodi or?

Thanks for any and all help.
[Android Q&A, Help & Troubleshooting] Jspex:
https://forums.lenovo.com/t5/Androi...ow-to-Root-a-Lenovo-Tab-2-A8-50F/td-p/2226421

And just search the forum for xposed 5.1

It took a while to get xposed to flash and the app to install. Just follow the instructions for xposed exactly and you shouldn't have a problem.
[Android Q&A, Help & Troubleshooting] s_16val:
one question!!

i made that backup like described at page 4 and i saved those 11 files that resulted. now how can i restore them if something goes wrong? because it doesn't have the scatter-file to load them to spft. thanks
[Android Q&A, Help & Troubleshooting] Eurofighter_ty:
Hi,

I have Lenovo Tab 2 A8-50LC and with Android 5.0.2 is laggy as hell and the RAM management sucks... How can I upgrade it to Android 5.1 ? On OTA says that no updates are availabale.
[Android Q&A, Help & Troubleshooting] SpookehAndroid:
I have been trying to get Xposed but it is hard with lollipop could you tell me how you did it, or how you unlocked bootloader and installed custom recovery. The other tutorials were a little too complicated for me. I already rooted it and have SuperSU just want to get recovery, PLEASE REPLY!!
[Android Q&A, Help & Troubleshooting] Gromit1996:
What guide did you use to root? I just want to block ads. [emoji2]
[Android Q&A, Help & Troubleshooting] SpookehAndroid:
This is for you Gromit1996 ?

By the way if you have seen this already, it is because I posted it on my Lenovo support account as well

Ok, before I post I am going to say that I have a question but I also have a MAJOR breakthrough answer for all Lenovo Tab 2 A8-50F owners wishing to have FULL root access! So don't forget to give me Thanks!

Alright, Let's get to it then!

So my question is could someone tell me how to go about just unlocking the bootloader and installing a custom recovery for this device. I know this thread is a tutorial but I don't know what part is the bootloader unlocking and installing the recovery to the device because I already rooted it with a one click software. WHAAAAAATT??? A one click app that supports Lenovo Tab 2 A8-50F? Yes, there is and it's simple! Scroll down for a tutorial! But first... Answer my question please! Also again don't for get to give me thanks and I will give you thanks if you answer my question!

Alright, people who are struggling to root their Lenovo Tab 2 A8-50F who think there isn't a one click root option, THERE IS NOW!!!!!! Feel free to jump up and down yelling and don't let others in your home stop you! WOOOHOOOO!!! All you have to do is go to kingroot.net and download and install the Android app. The best part is NO PC NEEDED! When it's done tap the root button and wait. If it reboots, don't worry. If it fails, DON'T WORRY!!!! It takes a couple times for it to stay, since this tablet is pretty well locked down when it comes to unlocking the device. But come on let's be honest, you have to give Lenovo a lot of props for being so good at locking it down! Keep trying until it succeeds. It will automatically install Kingroot's version of SuperSU (which isnt supersu at all) so just follow this tutorial if you wish to have the luxury of SuperSU's simplicity. It's fairly simple to do.

http://www.w0lfdroid.com/2015/05/How-to-Remove-Replace-KingUser-KingRoot-with-SuperSU.html

You are now good to go!
[Android Q&A, Help & Troubleshooting] Gromit1996:
I installed KingRoot and tried a few times and voila, I have root. It allowed me to install AdAway and that's all I really want. Thanks.
[Android Q&A, Help & Troubleshooting] Jspex:
Go into dev settings and tick oem unlock (makes sure USB debugging is on) and adb unlock bootloader, that's what I did.
[Android Q&A, Help & Troubleshooting] Ronobono123:
Anyone know if this rom will work for us using the Tab 2 A8-50f?

It says for the normal A8-50 but it would be cool if it worked.

Well im a new user so it wont let me post the link..but google the Marshmallow rom for the Tab 2 A8-50 and theres a guide to install the rom with links to the rom as well.