yashsingh1/xdaforums huggingface dataset:
[Thinkpad Tablet General] Alivevil:
1. YES, i tried both of them and in each of them exactly after flashing the first file with fastboot i get that error.

2. NO i can not rich recovery menu anymore.

3.YES, i will attach the images.
[Thinkpad Tablet General] :
from the way it fails you should be on a kitkat bios...

try again the same using the attached files (make sure you try with each of the two zip files in separate sessions)

start in DnX mode, screen with "Fastboot starting..." and input:

fastboot flash osloader efilinux.efi

fastboot boot droidboot.img

and report back whether at least one of them works (starts the droidboot menu, or at least doesn't give the blue error message) and which one

can't you get your 'friend' to tell you what did he did so we don't wander at random?

should the above fail too, i can only think of two possible scenarios:

1. (unlikely) your tab has a custom (???), modified from the Lenovo international one, security checking and in this case you must find the original (made for your tab) stock rom that will allow the (custom) efi loader to get loaded (i gave you the Lenovo signed ones from various sources)

2. (likely) your friend 'managed ' to alter the correct (original) chain of security in bios and this causes ALL the checkings for valid signed binaries to fail. considering that we can no longer interact with the tab using software means in order to fix that, nothing can be done, your bios will need to be reprogrammed with the correct bios firmware. although the tab 'lives' when started this is the same as a hard-brick (no software will save), if at least fastboot(droidboot) mode would be working we could try and flash a bios from it to fix the loading issue, but since you say you cannot start it... (try to start it with the usb disconnected when you pwr on and using the pwr&V+ or pwr&V-) though if the loading chain is broken not even a good partition with fastboot will save (as the bios will still refuse to start the loader from your tab)
[Thinkpad Tablet General] WaitingForGodot:
Hi,

I just got a yoga 2 (1050f) for Christmas. It's a good budget tablet, but I really hate the default Lenovo android OS. I would love to flash a custom rom, or a very stripped down lollipop. Are any of these available for this tablet?

Thanks.
[Thinkpad Tablet General] :
there's no custom rom available (yet) but if lenovo bloatware is what bothers you i guess you can use the pm disable lenovo_packages as root in order to get rid of them and you can also install an alternative launcher (nova for eg) to get rid of the stock lenovo one
[Thinkpad Tablet General] WaitingForGodot:
Great. Thanks for letting me know of those options.
[Thinkpad Tablet General] :
an older post on what i have disabled on mine (you should have the same stuff i assume)
[Thinkpad Tablet General] QuietLife:
Could any one help me flashing Yoga tab 2 1050l again after hardbrick. :(

I flashed dvt.xml by wrong instead of flash.xml in Phone flash tool.

Now it won't turn on fastboot just blackscreen.

I tried Power+ vol down, Power+ vol up, Power+ vol down & up nothing happend just blackscreen.
[Thinkpad Tablet General] salami.mahdi:
I have a 1050L Upgraded to Lollipop. But my wifi doesnt working after Upgrade. now I wanna downgarde it to KitKat. I followed every step provided in this topic by flashtool 4.4.4.1 . but it always errors during the process of flashing at 23 percent and the device automatically boot on to the system

error: ( Process TIMEOUT Failed to execute ""C:/Program Files (x86)/Intel/Phone Flash Tool/fastboot.exe" -s BaytrailB5F7B8CD -S 500M oem wipe ESP" )

Could anyone help me what to do!?
[Thinkpad Tablet General] workdowg:
http://xdaforums.com/showthread.php?t=3240487
[Thinkpad Tablet General] QuazIqbal:
Great work. As the bootloader is now unlockable, I would like to know if it is possible to achieve permanent custom recovery on our devices? Is there any permanent recovery available yet? Thank you.
[Thinkpad Tablet General] workdowg:
Short answer... no.
[Thinkpad Tablet General] Olivier:
Umm... Why not? I've been using TWRP on my 830F for weeks; fastboot flash recovery <recovery.img> will work like on any other device.
[Thinkpad Tablet General] workdowg:
You flashed the temp recovery to YOUR device? Hmmm...
[Thinkpad Tablet General] QuazIqbal:
Did you extract the twrp recovery.img from temp root of social design?
[Thinkpad Tablet General] Olivier:
No? I built TWRP from source, and flashed the recovery image using fastboot (hence, it is permanently installed).

Attached is a screenshot of the version I'm running, it is a bit more up to date.
[Thinkpad Tablet General] workdowg:
Maybe you could start a thread and share it?
[Thinkpad Tablet General] QuazIqbal:
+1
[Thinkpad Tablet General] :
anyone has seen 'Idiocracy'? , heard is mandatory for Lenovo employees https://www.youtube.com/watch?v=fJIjoE27F-Q

---------- Post added at 21:59 ---------- Previous post was at 21:44 ----------

this is a tool i made having the x98 owners in mind (i had to ... due to the individual requests) but maybe someone can find it useful
[Thinkpad Tablet General] workdowg:
Added TWRP Fastboot/Permanent by [MENTION=997923]ionioni[/MENTION]
[Thinkpad Tablet General] workdowg:
Is now.... Thread by ionioni
[Thinkpad Tablet General] Roipnol:
Are there ways to install the neat lollipop rom from nexus devices, for example, instead of lenovo one?

I can find guides to install bootloader and recovers, but not rom links
[Thinkpad Tablet General] bigakira:
Hello together,

I have a big problem and I hope somebody can help me.

I had my 830F updated with OTA to Lolipop but I had many problems with it and so I got back to the stock 4.4. All was fine... I also rooted the tablet after the downgrade and also here was all ok... This was round about 2 weeks ago. Today I wanted to try the Lolipop update ones more so I used the guide "2) Return to stock KitKat from rooted KitKat to take Lollipop OTA" because I had it rooted. All looks fine after the flash process. I saw "Result OK" AND "Flash Success" in the log window. So I tried to reboot but nothing happens. The tablet is dead. Even if I connect the tablet to the power nothing happens. I tried also to hold long the power button and tried to go to the fastbot with vol +- too. Is this now a hard brick or have I a chance to get it back alive?

Sorry for my bad english. If something is doubtful don't hasitate to ask me.

Many thanks

Chris
[Thinkpad Tablet General] :
check on the name of the file you loaded in phone flash tool... was it something with dvt in it? if so you (unfortunately) wrote your bios with a non valid version (the dvt/design validation test/ are used in the testing during manufacturing) and they won't load on a shipped tablet... and this means you hard-bricked. only a service will help as your bios needs to be flashed with a good version but now it can be done only by dismantling the tablet and using a hw programmer.
[Thinkpad Tablet General] KyroPL:
Hello. Your post might be very useful, but I don't know where can I get my 1050L bootx64.efi and droidboot. Please point where it should be, since Your hosted files doesn't exist anymore :(

Best regards

Marcin
[Thinkpad Tablet General] workdowg:
I pulled them because it was felt novices will hard brick. If you are savy enough to need them they are in the firmware ota

Edit: Just realized the lollipop ota's aren't posted. I'll upload in the morning and put in the firmware post.
[Thinkpad Tablet General] KyroPL:
Hello again.

The fact I couldn't find those files says I'm novice, but Your 'Edit' justify me a bit :)

I'm waiting for Your upload.

REgards

Marcin
[Thinkpad Tablet General] :
[MENTION=3971563]workdowg[/MENTION] was referring to SOMETHING ELSE when saying 'novice' (he removed some files that were used in an old method to downgrade the bios to the kitkat version and some users 'managed' to hard-brick their tab using it). why would you need those OTHER two files anyways?
[Thinkpad Tablet General] workdowg:
My guess would be the "repair bios error". I just removed the old "dangerous" way and left the link to your thread.... Much better indeed.
[Thinkpad Tablet General] KyroPL:
Hi ionioni.

I found [MENTION=3971563]workdowg[/MENTION] old method while searching for alternate solution, when Your great (assuming) solution failed in my case :( I really hoped one file download, double-click and (C)ontinuing will do work for me, but it wasn't (still isn't) so easy. Maybe I'm mixing threads, but Your solution stops on:

'

[PC] Sending files for booting in fastboot mode.

[PC] Error when flashing osloader

[PC] have you started in DNX mode?

'

even when I get tablet with 'Fastboot Starting...' message, BUT when Your tool is alone in folder.

When I start Your tool from KK target_bin folder I get:

'

[PC] Sending files for booting in fastboot mode.

[PC] Starting in fastboot mode

'

then tablet retart in 'normal' mode and tool adds another line :

'

[PC] Preparing to push files

'

waitng and waitng and waiting and nothing so i turn off tablet and once again I start it in DNX and tool says:

'

[PC] failed on preparing to push ....

'

So I thought maybe it's already on KK BIOS already ((3) of Your instruction) and tried to flash.xml from stock KK, but stopped on 'fastboot oem wipe ESP' after automated reboot.

I don't know where I am at the moment, actually. So decided to start it once again with old method. Taht's why I need those files.

Marcin
[Thinkpad Tablet General] :
sure thing, yours is a well structured message...

1. as per p. (3) in the 'how to' of the 'return to kitkat' guide: (3) if while running the tool hangs on the "Preparing to push files..." message, and your tab just starts(boots) to whatever you had on it before, it means that you already have a KitKat bios (the tool works only with the Lollipop bios firmware) so you don't need to restore the bios, you can flash stock KitKat rom directly (in this scenario the tool doesn't modify anything on your tab) was your tab booting to whatever you had before when you run the tool? (as if you just pressed power on to start you tab). if it was, then yes, you are on a kitkat bios (if you have run the tool from dnx mode as you said)

2. the oem wipe ESP is the first command of the flashing script, is executed from fastboot mode but that mode needs DIFFERENT drivers than DNX mode, try and install the drivers again. uninstall what you have so far (Intel Phone Flash Tool and drivers) reboot your PC and install them (The Inel Phone tool and the two drivers) from here

your assertion 'when Your great (assuming) solution failed in my case' only proves that is much more easier for one to assume that something(anything) else is at blame, instead of the obvious 'i f***ed up something' (not to say that statistically speaking when 1000 owners use a method and it works for them but not for you, hmm... take a guess)

Murphy law 'It is impossible to make anything foolproof because fools are so ingenious'
[Thinkpad Tablet General] KyroPL:
Hi.

First of all. There was no sarcasm in my assumption about Your solution. I'm aware that many owners used it and it works. And I REALLY think it's great. And I'm also aware that I f*** up, well, maybe not exactly - I'm just in wrong starting point, and I don't know where.

Thank You for clue about drivers. I will try to reinstall all in few hours.

Marcin
[Thinkpad Tablet General] OverkillRabbit:
Is there a known way to unlock the bootloader? If yes, it might be a good addition to this already great All-In-One Guide.
[Thinkpad Tablet General] workdowg:
Check post #5... ;)
[Thinkpad Tablet General] OverkillRabbit:
But #5 only tells me the partition layouts. I am a layman, essentially, so I can't quite do anything by knowing where the boot partition is hidden at.

Another concern is that there is no permanent root method, it seems. I wanted to flash a Custom ROM, as the UI is horrendous, and I don't want to tether my device to my pc every time it turns off, just so it gets usable again. Do you know of a way to do this? Sorry if this is too much to ask for :(
[Thinkpad Tablet General] workdowg:
my bad post #6 http://xdaforums.com/showthread.php?p=62237385 or directly http://xdaforums.com/showthread.php?p=63662159

And what lead you to think root isn't permanent? Originally we used a temporary tethered recovery to achieve root. But root has always been permanent... Also check the first few posts for a permanent TWRP install...
[Thinkpad Tablet General] KyroPL:
Hello.

OK. Reinstalled DVR to 1.10, installed IPFTL. Sadly - nothing changed :(

Flashing to stock KK fails at fourth step: fastboot oem wipe ESP

Actually, after second step (fastboot boot $droidboot_file) tablet boot normaly to OS. Tried to stretch third step (sleep) and put tablet in DnX mode again, but it seems it's not the way as Flash Tool stops flashing with error.

Help Guys.

Marcin
[Thinkpad Tablet General] :
have you tried again to restore the bios AFTER you reinstalled the drivers?

if you run the bios tool from DNX mode (when screen says "fastboot starting...") and instead of proceeding with the bios restore it starts to the 'normal mode' (ie like without running the tool and just powering on) then you are(you should be) on a kitkat bios. also, if you tried to flash a KitKat rom and the tab started to the 'normal mode' then you are on a Lollipop bios. it can only be one of those so some information is missing...

if on a lollipop bios(if you were on lollipop when started all this and since no restore bios operation succeed then your bios is a lollipop one) and what you want is to get back to kitkat you must first restore the bios and only AFTER that you can flash the kitkat stock rom, however, if what you need is just a fresh lollipop on your tab then no bios restore is required, just flash the stock lollipop rom from below (no need to restore kitkat bios->flash kitkat rom->take lollipop ota)

load flash.xml in intel phone flash tool and start, your tab MUST be in DNX mode when you start flashing /screen with a still 'fastboot starting...' message on it

1050L stock lollipop rom

or

1050L stock kitkat rom

at least ONE should work! if not there could be a problem with your usb connection (drivers on PC or a hardware one on either the PC or the tab)

try and also append the log from Intel Phone Flash Tool log window for better details
[Thinkpad Tablet General] KyroPL:
SUCCESS!!

After reinstalling drivers I tried everything again and everything went as before. Then I once again read all comments to Your Bios Tool, and two of tchem pointed me to some nuances. First of all I copied Your tool fro my D:\some folder\ to C:\

Not only, but also I changed order of steps I took to run Bios tool. I started it, hit (C)ontinue and AFTER that I connected DnX moded tablet to PC. Et Voila. Right after that the tool worked as expected. Then flashing to KK stock was piece of cake.

Conclusion. I don't know what helped. Running tool from C (system?) disk. Order of steps. I don't know, but if anybody has such problems, try both.

And second - I tried to flas stock KK while I still was on L Bios, and flashing failed. Nevertheless I didn't bricked my tab. In my case, flash error was feature, not a bug.

Once again, HUGE thanks for this tool. You're a man. And many thanks for every contributors to this thread/forum. Sometimes even smallest clue leads to solution.

Marcin
[Thinkpad Tablet General] :
already pointed that the tool should be run from C: drive (for eg. Desktop or Downloads forlder where normally is the tool placed when downloaded)

when flashing the kitkat stock rom you did not bricked because the flash.xml script never got the chance to run because the tab was started from dnx mode(and it just rejected the commands) however some kitkat stock rom scripts require flashing from fastbot mode and when using that mode flashing will proceed (at least enough to write some partitions and brick)

since you say that now you succeed in restoring the bios your real problem was with the drivers (as i recall, you tried running the tool from C: even before and didn't worked)
[Thinkpad Tablet General] KyroPL:
Hi.

No, I run the tool from D: drive. I must have missed this requirement. After DRV upgrade I still tried that, so upgrade did't have to be solution (but could, of course). I bet on drive.

Thanks again.
[Thinkpad Tablet General] :
as said if you run from D, or any other drive than C, it will fail to start the operation (won't find the needed files) but no change will be done to the tab

@ ALL

if what one needs is lollipop back (from an existing altered one) simply flashing stock lollipop rom is enough (no need for the restore bios etc) here is a folder with various YT2 stock rom files (the ones with (L) at the end are the lollipop ones the others are kitkat, all are to be flashed from DNX mode)
[Thinkpad Tablet General] mahdisalami:
I have a 1050l device, after updating to lollipop I couldn't connect to wifi, so I returned to kk, Is there any lollipop Rom for me with no wifi bug?

And can I have another version of rom installed ( for example 1050f) on my 1050l?

One more question, is just flashing from kk to lollipop with flash tool enough with not changing the bios or anything ?
[Thinkpad Tablet General] :
your wifi should be working, what wifi bug you're referring to?

you can flash the F rom but you will lose the specific L extras (3G data etc)

no, you need to update to lollipop using the OTA process as this will update the bios too (just flashing the lollipop rom will not update the bios (once you are on lollipop you can flash a stock lollipop rom when needed)
[Thinkpad Tablet General] mahdisalami:
no, you need to update to lollipop using the OTA process as this will update the bios too (just flashing the lollipop rom will not update the bios (once you are on lollipop you can flash a stock lollipop rom when needed)[/QUOTE]

But now on kk whenever I try to OTA it fails I don't know why,

is any procedure to upgrade to lollipop using flash tool?
[Thinkpad Tablet General] :
go in Contacts and in search contacts box input ####0000# and tell me what says under BIOS version

how it fails the OTA? any messages?
[Thinkpad Tablet General] mahdisalami:
Nothing happens when I type that in contact box. For more information I have once changed my bios to kk and downgraded from lollipop.

After update it just reboots into stock recovery and after reaching 100% says update failed.
[Thinkpad Tablet General] :
then flash this (from DnX mode, PwrOn with both Vol keys pressed, screen says "fastboot starting...") and see if it fixes anything (after you flash remember to set the country code ####6020# in Contacts before you attempt to take an ota)
[Thinkpad Tablet General] mahdisalami:
I couldn't find my country code so I changed it to " th". It worked and updated to lollipop. This lollipop update that I have now is a little bit different from the update released some month ago, and I don't have any wifi issues with it.

Thanks everyone who helped me.

For more information :

In my previous update from kk, I made 4 updates: (12mb - 300mb - 1200mb - 1300mb)

But this time: (12mb - 1200mb - 162mb)

I think something was wrong with the first release now the fixed it. ☺
[Thinkpad Tablet General] :
i have some problem:

-i can't do nothing from bootloader mode because adb and fastboot doesn't recognise my device (i don't know which driver to install)

-when i try to boot in fastboot mode (up+down+power and the release power when tablet bzz) the tablet say "fastboot starting" but nothing happens
[Thinkpad Tablet General] MikeChannon:
Closed at OP request.
[Thinkpad Tablet General] semsem81:
can u help me with this
[Thinkpad Tablet General] workdowg:
I'm at the vet right now and can't read the picture. What device do you have? I'll be home in an hour.

From my LG-G3 running Jasmine8.0/Skydragon Kernel 4.2
[Thinkpad Tablet General] semsem81:
Yoga tablet 2-1050L
[Thinkpad Tablet General] pregis:
Your link ain't redirect correctly...

From what I see the driver isn't installed and you are running windows 8.

The problem comes from win8 refusing to install insigned driver.

Google installing Mkt65.. Driver windows 8

Here it is...

https://m.youtube.com/watch?v=PAxTCvRmlio

Envoyé de mon Be Touch en utilisant Tapatalk

---------- Post added at 05:11 PM ---------- Previous post was at 05:09 PM ----------

Your pb seems due to insignes driver versus win8.

Go to:

https://m.youtube.com/watch?v=PAxTCvRmlio

To properly install them.

Envoyé de mon Be Touch en utilisant Tapatalk
[Thinkpad Tablet General] workdowg:
[MENTION=4762992]semsem81[/MENTION] - yes, what he said.
[Thinkpad Tablet General] xterminater07:
Edit: Does anyone know how to have windows installed on the 1380F android version? It would be awesome to have projector on the windows OS instead of android.
[Thinkpad Tablet General] workdowg:
Pico projector...Lucky guy. Keep checking back it is being worked on. ;)
[Thinkpad Tablet General] xterminater07:
lol thanks :) I got a good deal from my company so I bought it. Where can I follow up with the development on windows for the 13" android version?
[Thinkpad Tablet General] workdowg:
Russian and Chinese web sites... Seems not much goes on in the states...

From my LG-G3 running Jasmine8.0/Skydragon Kernel 4.2
[Thinkpad Tablet General] pregis:
You have some link in Ru or CN ?

I'm curious.... and translate.google.com is my friend !! (sometimes)
[Thinkpad Tablet General] workdowg:
I'll PM you...

Sent from my YOGA Tablet 2-1050F
[Thinkpad Tablet General] xterminater07:
Yes pm me the links too please so I can follow up on it.
[Thinkpad Tablet General] tang1331726:
[MENTION=3971563]workdowg[/MENTION]

I have found a simple new way to enter BIOS, which only（I think） applied in 4.4.2 version:

deleted 4.4.2 flashxml command lines as following, and use the Phone Flash Tool to flash that flash.xml

<command>
<string>fastboot flash ESP $esp_file</string>
<timeout>120000</timeout>
<retry>2</retry>
<description>Flashing 'ESP' image.</description>
<mandatory>1</mandatory>
</command>
<command>
<string>fastboot flash system $system_file</string>
<timeout>420000</timeout>
<retry>2</retry>
<description>Flashing 'system' image.</description>
<mandatory>1</mandatory>
</command>
<command>
<string>fastboot flash fastboot $droidboot_file</string>
<timeout>120000</timeout>
<retry>2</retry>
<description>Flashing 'fastboot' image.</description>
<mandatory>1</mandatory>
</command>
<command>
<string>fastboot flash boot $boot_file</string>
<timeout>120000</timeout>
<retry>2</retry>
<description>Flashing 'boot' image.</description>
<mandatory>1</mandatory>
</command>
<command>
<string>fastboot flash recovery $recovery_file</string>
<timeout>120000</timeout>
<retry>2</retry>
<description>Flashing 'recovery' image.</description>
<mandatory>1</mandatory>
</command>

reboot and you will go into BIOS.

When you want to restore to Android, simply flash the complete Flash.xml in fastboot mode (Volume+ and Volume- and power) again!:)
[Thinkpad Tablet General] workdowg:
GREAT WORK!! Nice info.

Seems pretty strait forward that the Intel Phone Tool is just using fastboot to do the work. This is encouraging because I'm thinking of just scripting a tethered dual boot.

But if we can somehow unlock the bootloader or sercumvent it (maybe like my LG G3) we could dual boot Linux or Windows. The issue is the small internal SD card. I've been able on other devices to get Linux to boot from the MicroSD, so maybe that can happen. It is actually better because you are only messing with the boot partition..
[Thinkpad Tablet General] kurtkombajn:
Hello, I have Lenovo Yoga 2 830L last firmware Lollipop, I would like to do downgrade. How I should do it?

Thanks
[Thinkpad Tablet General] workdowg:
http://xdaforums.com/showthread.php?p=62237383 - I suggest plan B

Sent from my YOGA Tablet 2-1050F
[Thinkpad Tablet General] kurtkombajn:
I edited .xml files as is in Manual, should I edit other thinks to what I have?like names:

YT2-830L_USR_S000209_1504220538_WW21_ROW

YOGA Tablet 2-830L

When I reboot my tablet to fastboot, then PF tool doesnt see it and I cant flash it :(

I am sorry, but I am flashing Android first time, so need more infos how to do it.