yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] Kyokushin:
Otkat is for Kitkat TABS8-50LC_LTE_VOICE_ROW_WW14_S000200_150121

I injected otkat into this rom, but after flash and first phone restart i am getting a short blue Intel Atom screen and then EFI hard drive. I also tried inject otkat to TABS8-50LC_S139_141010_WW14_BMAIN_ROW_US but effect is the same.
[Android Q&A, Help & Troubleshooting] ronnie29:
Thanks Man. You saved me.

Now I can see another system update for 1112 MB which is for android 5.0

Seeing so many reviews for Lollipop reducing the readability of screen and other issue, do you or others suggest to update to lollipop (5.0)

What are benefits or disadvantages for the same.

I am happy to wait for few days since I am going to give this as a gift to my nephew next week.

Thanks again.
[Android Q&A, Help & Troubleshooting] fat-lobyte:
I don't know, I never had KitKat. People were complaining a lot about battery life and the Speakers being worse. But personally, I like it a lot. It's a pretty smooth experience, with a lot of UI improvements, and all of the Lollipop goodies

I have definitely no problem with screen readability, my screen is very readable.

No Problem, glad to help :)
[Android Q&A, Help & Troubleshooting] LordHelmchen1:
Battery-Problem (0%) and Factory-Reset not possible after Upgrade to 5.0.1

Hello,

I've read (almost) the complete thread - but did not find a solution for my problem:

My device is a S8-50L (i.e. only Data w/o Voice)

I was running 4.4.2 KK official

I received a message, that my Tablet can be updated to 5.0

I did a factory-reset (under 4.4.2), downloaded the update (1,1 gb) and flashed

Flashing completed et voilá: Lollipop on my S8

Immediately first boot (which took quite a while): Another Upgrade (a few mb's)

downloaded and tried to flash

Flashing not possible: Battery too low (0%) - although battery is propably fully charged

Battery-Icon disappeared from the settings-page

Interesting since then:

when unplugged from charger: battery-indicator says 0% (and red exclamation-symbol)

if I plug the charger: Exclamation disappears but battery-level stays at 0%

And: Factory-Reset is no longer possible: Tablet says, all data will be deleted, but after reboot, all apps and data are still present.

Strange:

I can downgrade to KK by just restoring a CWM-Backup of 4.4 (downloaded it from another post in this thread)

And I can upgrade to LL by restoring a TWRP-Backup of 5.0 (downloaded too from a post in this thread)

I assume, that the initial UEFI-Update did not happen (don't know why this happened, but if I understood this thread right, the LL-Update comes with a Upgrade of the UEFI-Driver to 64bits. And this makes it impossible to downgrade to 32bit KK without "repairing" the BIOS)

Because I haven't read about this problems: Am I the only one?

Any ideas, how to solve the problem(s)?

Is there a (simple) way to check, which UEFI-Version is installed?

Thanks in advance.
[Android Q&A, Help & Troubleshooting] JustPlayingHard:
I have battery issues as well. It goes from 7% to 0%
[Android Q&A, Help & Troubleshooting] LordHelmchen1:
At least you can see a change ... :)
[Android Q&A, Help & Troubleshooting] Kyokushin:
Problem solved.

1. I used Bios repair

2. i did Temp Recovery Session, T4, http://xdaforums.com/android/development/intel-android-devices-root-temp-cwm-t2975096

3. restored from a TCWM backup made by user J0s3f http://1drv.ms/1O3qTvg
[Android Q&A, Help & Troubleshooting] panosfx:
There is no way for me to OTA update to lollipop from last kit kat firmware.

Everytime seems to flash the update and then bootloop.

S8-50F no root.No recovery either to wipe data...

I don't want to stay to 4.4.2 [emoji20]

Edit:Maybe that's the problem.

Always downloading Lollipop update stops to 98%.I don't know why...
[Android Q&A, Help & Troubleshooting] fat-lobyte:
What do you mean "no recovery"? You can create a temporary TWRP recovery session with awesome stuff from social-design-concepts: http://xdaforums.com/android/development/intel-android-devices-root-temp-cwm-t2975096

Wait, I do not understand the logic here. You have bootloop but you show us a screenshot of booted device??

Anyway, try to find the update on the interwebz (search the the update string) and try to install it manually.
[Android Q&A, Help & Troubleshooting] panosfx:
Can't boot to recovery after the update to lollipop.Stays to boot logo.If i stay to kit kat i can do everything.So the screenshot is from kit kat.If the download of the lollipop update finish and install it ihave bootloop.

Sorry for my poor English...
[Android Q&A, Help & Troubleshooting] fat-lobyte:
Are you sure it's a real boot loop? After the upgrade, the device should reboot like 2-3 times.

What you can do is get Temporary Recovery from link above, and wipe data/cache.

Good tool for debugging is typing "adb logcat" in your terminal and observe what is the output. (You need android tools for that, maybe other users can point you to the download link)
[Android Q&A, Help & Troubleshooting] Minto107:
That's strange. For me when I was recently updating to lollipop updated hanged on 97% with title in notifications download finished and then it checks integrity of files and then I hit reboot and it works perfectly... You can try to send it on warranty servicing if nothing will help. What is your manufacturing date?

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] hard_snake:
I have updated my tab to lastest S8-50F_S000478_160204_ROW while it was still rooted. Ever after that, the tab seems to stops at booting screen. I have done facotry reset and cache wipe out, but the issue remains. try to down grade to 4.4 using Intel Phone tool but couldn't and get the following error message;

03/18/16 11:23:34.151 ERROR : [Port 0/8/3] Command `C:\Program Files (x86)\Intel\Platform Flash Tool Lite\fastboot.exe "-S" "500M" "-s" "Baytrail07B66364" "oem" "start_partitioning"` timed out (60 s)

03/18/16 11:23:34.158 ERROR : [Port 0/8/3] Flash failed (Command type: Fastboot)

On the recovery screen it say my rom version is on S8-50F_S000478_160204_ROW.

Does anyone experience the same and how can I bring my tab back to life again?

Thanks
[Android Q&A, Help & Troubleshooting] Hash.H:
After the latest version of lollipop came out along with the upgrade last week or so, does anyone know how to get back into the UEFI/BIOS settings, because I want to change boot mode to windows 8.x rather then android, because I'm implementing some mods. If anyone has any idea on how to get back into it, that will be of tremendous help. Thanks ! BTW, cant anyone use the windows roms from the windows yoga tabs, because they have identical specs to the tab s8-50 ?
[Android Q&A, Help & Troubleshooting] panosfx:
How can I see it?
[Android Q&A, Help & Troubleshooting] Hitah:
I have the same problem: Flash failed because timed out in step "start_partitioning".

I'm also asking for help. Thanks in advance
[Android Q&A, Help & Troubleshooting] fat-lobyte:
Which Version of Phone Flash Tool are you using?

Which Version of Phone Flash Tool are you using?
[Android Q&A, Help & Troubleshooting] Hitah:
Which Version of Phone Flash Tool are you using?[/QUOTE]

I used Phone flash tool 442 which is mentioned in post90, but I also tried 5.4.2.0 lite (link from the first post)
[Android Q&A, Help & Troubleshooting] Minto107:
Mine has it on the back cover, it also should be on the box look at the photo

Wysłane z mojego GT-I9305 przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] panosfx:
Mine is 25/5/2015
[Android Q&A, Help & Troubleshooting] mt.blackwell:
Hi. I've just bought on of these 2nd hand for my daughter (already have one for my other daughter which for the money i believe still can't be beat), and am having issues updating. Have found this thread but can't find a definitive answer to my problem. I'm guessing i need to reinstall the firmware but am unsure which i download. My table has S8-50F_S000103_140817_ROW and i'm getting offered S8-50F_S000200_150121_ROW as the update but i'm getting the following error.

Basically i'm just wanting to confirm that i can download the full firmware package from post 1 (although it's S000148), and update as per post 90, which should then enable OTA updates successfully, and then change the region afterwards back to UK?
[Android Q&A, Help & Troubleshooting] Batmat86:
Hi, I need help because since the last update I have no access to my secondary users .... I tried to restore the backup TWRP above but it does not change despite a factory reset.

And I can not put kitkat with error 7, how can I find the ability to create multiple users as this is essential because I share my shelf with my son.

Thank you for your help, sorry for English, French being I use Google translate

P.S : Would anyone a backup TWRP kitkat the last release?
[Android Q&A, Help & Troubleshooting] Minto107:
Your tablet's software has been modified as recovery log says. Verification failed. You need to reflash S8-50F 140929 firmware and then you can update up to lollipop update 2

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] mackhenri:
Guys got a update on LC its rooted what all I need to do before I apply this
[Android Q&A, Help & Troubleshooting] mairenomon:
Hello there, I managed to update the tablet to the latest version LP, but there's no way I can root it, when I follow the steps to unlock the bootloader I get an error saying something about backlight failed all the time, I can't figure out hot to root it as the root method doesn't work either,

There doesn't seem to be a step by step guide on how to root it when in Lollipop. I would appreciate if anybody can help , I'm on win 10 btw, thank you!
[Android Q&A, Help & Troubleshooting] dzidexx:
http://xdaforums.com/android/development/intel-android-devices-root-temp-cwm-t2975096 [MENTION=6288150]mairenomon[/MENTION]
[Android Q&A, Help & Troubleshooting] Minto107:
Please read last pages next time

Reflash stock firmware(KitKat with back to KitKat fix)

You can root it via temp recovery session eg TWRP as I did and root works correctly on newest firmware, haven't tried unlocking bootloader but it should work as it uses same bootloader as first lollipop

Wysłane z mojego GT-I9305 przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] itasoulas:
After testing, battery on latest Lollipop update is still awful as it was on previous major Lollipop. Stand by is ridiculous bad! :p

EDIT: And it's not the easiest thing selling this crap!
[Android Q&A, Help & Troubleshooting] Minto107:
Lol easily getting 5 to 6hrs of screen on time with 1/2 brightness and wlan always on just do factory reset

Wysłane z mojego GT-I9305 przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] mac231us:
if you update can you post the firmware version or update name..is this different from the one like 10 days back? Thanks (for 50LC)
[Android Q&A, Help & Troubleshooting] yili:
I am using 50LC, 4days ago, the battery shows 0% all the time, even when I plug the charger. However, I am still able to use it with 0%! It also shows temperature too low for charging. What can I do?

Has anyone one has the same issue? Thanks.
[Android Q&A, Help & Troubleshooting] JustPlayingHard:
I have an similar issue, it shows you lenovo didn't care that much about our tablet on lollipop :(
[Android Q&A, Help & Troubleshooting] szczesny:
So latest update fixed bad sounding speakers or no ?
[Android Q&A, Help & Troubleshooting] Minto107:
It's droidboot/fastboot problem. There was a leak of lollipop sometime ago back in early 2015 and those who flashed that leak had problems with 0% battery because they couldn't flash unsigned bootloader. Reflash KitKat and then update and should be ok

To be honest I don't know but it seems alright

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] szczesny:
So it seems ill never know if dont do it alone.

How you reccomand me EASIEST and FASTEST way to downgrade root and avoid bootloop ?

My tab was : always updated by ota to 5.0.1 without root. Later did some backups imgs, before root, messed with these dolby atmos and removing dolby, did load old backups 2 times, one time had problem with wiping cache , later tablet didnt want to load cache - errors.

Basicaly its backup state of 5.0.1 plus root .

If do factory reset that should prepare for update ? Update still notificates me that hes ready.
[Android Q&A, Help & Troubleshooting] Minto107:
If you have unlocked bootloader and perm recovery you will need to reflash KitKat unless you have WiFi only model. If you have you should be able to update if you have a working backup of unrooted stock lollipop image(no modifications done at all)

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] szczesny:
Have L ver. How to chceck i have unlocked bootloader ?

And , if now jist unroot update will still fail?
[Android Q&A, Help & Troubleshooting] Minto107:
If you haven't done anything to your tablet excluding root you don't have unlocked bootloader. If you just unroot it will fail booting.

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] szczesny:
I updated by Ota , never loaded other system Roms , but i loaded 2x backup of my system from before root state. And also loadedmthese Dolby Atmos and other audio progs. But that didnt worked so i backed to original factory statemDolby.

So i have unlocked bootloader or locked ? What soft will check that ?? As i said - did load my own system imgs backups but never try to load unoficial system rom. Never tried to rewind to Kitkat, etc.

So?
[Android Q&A, Help & Troubleshooting] hard_snake:
I have tried on 5.4.2.0 as my pad kept losting connection on ver 4.4.2.
[Android Q&A, Help & Troubleshooting] itasoulas:
This device is history for me since this morning. I am so happy I got rid of it. Crappiest device I have ever owned. Thanks all for this great thread. It has been the one and only source of useful info for the device. I am not gonna buy a new one as the money will go to upgrading my PC ( and so happy with it). If I was to buy another tablet, I would go with the Mi Pad 2. Who knows, maybe soon. But for the time being I don't need one.

Be well everybody. Thanks all for the great help provided!
[Android Q&A, Help & Troubleshooting] mac231us:
I got mine in more or less pristine condition from EBay in the U.S for $90..the LC version so cannot complain... use it for taking pictures...not mainstream device

Main complaint is typing which may be tad better in latest LL.. BTW can anyone state what is the latest version on LC... After Ota (the build number)

Am down to this and the sm-T235...got rid of t705 and t715...lol..my tinkering got out of hand
[Android Q&A, Help & Troubleshooting] Minto107:
I right now easily get 5 to 6hrs of sot. On kitkat it really rarely go up to 5 and half hour but if I would now change a tablet I would buy something with excellent battery life. S8 is powerful and battery is average but I would like to have something to take on longer trip and not have to have a 20k PowerBank in pocket or bag ;) about build number it's S000478 160204 and droidboot 150821(unchanged still same bootloader)

Wysłane z mojego GT-I9305 przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] kevkev22:
Hello Guys,

im trying to downgrade my S8 50f to KK but just can't get my PC or Laptop do detect the Device in fastboot mode.

I have the Lenovo TAB S850Driver V1.0.1.msi driver installed and just don´t know what to do. I read through most of this Thread but didn't see anyone with the same Problem.

Im open for all Suggestions.

My build is S8-50F_S000478_160204_ROW

Thank you for the good work you are doing here
[Android Q&A, Help & Troubleshooting] LRGBX:
There are some problems with drivers installation on Win 8.1 and Win 10.

You will try to disable driver signature verification.

Link: howtogeek. com/167723/how-to-disable-driver-signature-verification-on-64-bit-windows-8.1-so-that-you-can-install-unsigned-drivers/

---------- Post added at 11:32 AM ---------- Previous post was at 11:20 AM ----------

I did full downgrade (to S139) and than i did full update (to S478) on my S8-50LC.

Now i have cwm backup with latest firmware right after factory reset so i would never waste THAT much of time.

drive.google. com/open?id=0B5SgaYWkJFESaTgwWHh0Z1VQUXM
[Android Q&A, Help & Troubleshooting] kevkev22:
Thank you for the fast respons, tried it but my PC (win 10) still doesn't detect the device
[Android Q&A, Help & Troubleshooting] szczesny:
Did that update after loading system and boot from stock 5.0.1

Zero change, zero performamce gain. Did test in Seascape benchmark - same average fps as before. Sound from speakers still the same - distorted.
[Android Q&A, Help & Troubleshooting] Minto107:
For me it's not lagging anymore. Systemui is much smoother than before and antutu benchmark score raised almost 2x so it's only you ;) sound is maybe same but for me it's ok
[Android Q&A, Help & Troubleshooting] dzidexx:
Usb 2.0? Did you install PFT 5.+ ver.? Tried another usb port?

Uninstall all drivers for android, apps like kies etc, restart pc, install only s850 and PFT 5.+.

For pft 5.+ you can connect in bootloader mode.
[Android Q&A, Help & Troubleshooting] elsauvageon:
root s8-50 with last rom(s000478-160204)

hello,

i want to root my s8-50F tab but the launcher.bat doesn't run correctly on my w10 pc. it's start script and stop at "ERROR: You must run this script from the standard Windows Command Shell (%SYSTEMROOT%\system32\cmd.exe). Please start this shell first before this script." , after that cmd's windows desappear.

only good thing is that after reinstall phone flash tool without signed driver check, the tablet is recognize IN FASTBOOT.

can someone explain me the next step for rooting this device?
[Android Q&A, Help & Troubleshooting] RaawrItsTomi:
Guys can one of you tell me if your camera quality has decreased after updating to lollipop? Or is it just a placebo effect and there isn't a difference what's so ever
[Android Q&A, Help & Troubleshooting] dzidexx:
I think you can try:

Run launcher.bat as administrator (right mouse), or

Go to the folder intel_fblr, run cmd.exe here (right mouse), type launcher.bat and hit enter.

Usb debugging must be on in the tab, normal connected or bootloader mode. [MENTION=7364764]elsauvageon[/MENTION]
[Android Q&A, Help & Troubleshooting] szczesny:
There is some way to change frequency of that Auto display brightness dimming due to "overheat" ?

Now tablet dont let heat any near of 4.4 level, not slowing down processors, but it can auto dim display twice in 3 minutes. Its super annoying.

Tried shutting down running these intel aps, but that change nothing. They return automaticaly after some time. Maybe need some changes with more advanced ways ?

Its auto secure, but..... dimming display non stop , even when no noticable heat ? Omg.

Im sick of leveling up brightness n middle of action in Wot Blitz etc.

This tablet is mad. Hes too hot even when do nothing special in android menu! Where is that heat ? Hamds on back, not feel any noticable heat from 4.4.

Stupid lazy-novo.

Or maybe there is app to automaticaly return to favorite brigh without user clicking ?
[Android Q&A, Help & Troubleshooting] elsauvageon:
thx for the reply!

after test and searching i think i don't have the good drivers (adb or fastboot) or not the ones need... so can you give me a link where i can download all the correct drivers.... after many downloads last days i'm a little bit confuse...
[Android Q&A, Help & Troubleshooting] Shump:
What are you experiencing? If it's difficult to explain please post a screenshot. I needed to go into control panel and select a different driver. If you are having trouble connecting to your device via the Android device bridge I think this post might help:

http://xdaforums.com/showpost.php?p=63764169&postcount=1129
[Android Q&A, Help & Troubleshooting] dzidexx:
[MENTION=7364764]elsauvageon[/MENTION]

You need only s850 drivers and intel_fblr.

All are in 1st page of this thread.

Sorry intel_fblr here:

http://xdaforums.com/android/development/intel-android-devices-root-temp-cwm-t2975096
[Android Q&A, Help & Troubleshooting] Minto107:
Again I don't have such issue. One time I had problem with contrast but it fixed itself before I restarted. Maybe your tablet is faulty or just go back on KitKat? At least until CM12.1/13 will get released
[Android Q&A, Help & Troubleshooting] stas333:
Hello everyone,

It has been a while since i have been here, but i need your assistance. I let my friend have the lenovo tablet, which was rooted. he decided to take OTA update and bricked it. I have tried to return it to stock but not working. I get an error when fastboot starts. Anyone know what to do?

Thanks
[Android Q&A, Help & Troubleshooting] Minto107:
Flash bios fix and revert to KitKat and you'll be ok

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] stas333:
Thanks!

got it working
[Android Q&A, Help & Troubleshooting] elsauvageon:
[IMG="error"][IMG="error"]http://xdaforums.com/album.php?albumid=13173&pictureid=52746[/IMG][/IMG]hi,

so now i can run the launcher.bat file but it's stop when i must select type of TRWP install (T1-2-3 or 4)... it's get out of script with error: "recursion of the order exceeds the limits of the stack (number of recursion=593 , battery 90% ....aborded"

what the f... is this?
[Android Q&A, Help & Troubleshooting] fat-lobyte:
Hi! I have noticed that my device keeps changing the screen brightness a lot. I think it depends on the image currently on the screen. Is anyone else experiencing this? Any way to set it fixed?
[Android Q&A, Help & Troubleshooting] dzidexx:
Which port usb are you using? (Usb 2.0; 3.0; front; back).

Which version of windows?

Are you connecting tab as: normal/bootloader mode; mtp/usb/charging mode; usb debugging on/off?

Give here a picture of bootloader mode (or rewrite).
[Android Q&A, Help & Troubleshooting] Minto107:
You're probably on first KitKat release, 140929 or 1411xx(for LC model). On this firmware it's normal on newer firmwares this bug doesn't exist any more

Wysłane z mojego GT-I9305 przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] Sam00r:
I think I'll wait for the official update
[Android Q&A, Help & Troubleshooting] REAL_BALIKA011:
This is official :p
[Android Q&A, Help & Troubleshooting] Lander00:
Hello guys.

I bought this tablet recently. I searched all settings to find "battery percent" options, but I didn't find such one. Is there any option/app to have percent of battery charge?

I have LTE version (Data only) and rooted.

Appreciate any help.
[Android Q&A, Help & Troubleshooting] kandalph:
Battery app

You can use this at GP

Otherwhise you need to go to settings, battery and you can see the actual properties of the battery, also in %

I am still looking for the firmware of the model you have. The Lenovo S8-50L without voice. Would be nice to get it from you.

THX
[Android Q&A, Help & Troubleshooting] REAL_BALIKA011:
LC rom should work for L too.

At least LC works on F.

Its crying for sim after boot, but i just have to hit ok.
[Android Q&A, Help & Troubleshooting] kandalph:
Warrany reason.....

............yes I know. I just need to flash it back to stock mode which is S8-50L for warranty reason. I might get mine replaced because of the quick discharging battery.

Thank you REAL_BALIKA011. Perhaps you are able to look for it as well.

Greetz
[Android Q&A, Help & Troubleshooting] kevinbakon:
I use Energy Bar on all of my Android devices. It doesn't display a %, but I like the simple and non-intrusive look of the bar!

https://play.google.com/store/apps/details?id=you.in.spark.energy
[Android Q&A, Help & Troubleshooting] jazzespresso:
[MENTION=1585179]highHopes[/MENTION] or [MENTION=3576981]KainXSS[/MENTION], can you repost 5.01 update again?
[Android Q&A, Help & Troubleshooting] Sam00r:
Give me 10 and I'll put it on my Google drive.

Edit: Uploading. I'm on fairly fast cable so it shouldn't take too long.

Edit 2: Here you go https://drive.google.com/a/atlantis.me.uk/file/d/0B99JKKd5zaw_bVJaZjVTMW0xQXc/view?usp=sharing