Lenovo TAB S8-50 - Stock Firmware ROM/Root and Support

Did you find this thread useful?

  • Total voters
    33
  • Poll closed .
Search This thread
By:
Advanced…
S

Silme_2013

New member
Jun 23, 2018
2
2
felixtaf said:
Thanks. Please let me know after a day or two. Much appreciated..
Click to expand...
Click to collapse

It works. There has been one freeze but it's probably unrelated.

Also, the battery is very easy to replace - just open the back side, unscrew one screw, disconnect one connector and pry out the battery (there is some not very sticky glue). Put it back together and it's done!
 
  • Like
Reactions: felixtaf
L

lukpol

Member
Dec 10, 2017
8
0
Veni, vidi, vici!
I finally solved the blinking issue when watching videos on S8-50 with minimal brightness.!
All you need is to disable HW overlays.
The problem is that in KK version HW overlays doesnt work because when you disabled it in developer option, it will be unchecked when you will go to settings again so it doesnt work in KK.
I heard it work on LP but the problem is that mine tablet on LP sounds like a crap.

So what I did? I rooted my tablet and installed https://play.google.com/store/apps/details?id=com.intangibleobject.securesettings.plugin&hl=en_US. It has the option to disable HW overlays.

The problem is im using a 7-day trial so very likely it wil stop disabling HW overlays when trial expires.

XDA folks, how to disable HW overlays on a rooted s8-50 using a bulid.prop editior?
 
Last edited:
felixtaf

felixtaf

Senior Member
Sep 14, 2014
75
14
Google Pixel 3
Samsung Galaxy Note 10+
Silme_2013 said:
It works. There has been one freeze but it's probably unrelated.

Also, the battery is very easy to replace - just open the back side, unscrew one screw, disconnect one connector and pry out the battery (there is some not very sticky glue). Put it back together and it's done!
Click to expand...
Click to collapse

Thanks Bro. My battery finally arrived and my tab is working fine now :). Appreciate your help!
 
K

kobir

New member
May 24, 2010
4
0
Lollipop s8-50f_s000479_160216_row

Hi just wanted to check what the latest build everyone has?

I used the kit kat firmware here then upgraded

It's now at s8-50f_s000479_160216_row

That build doesn't come up in searches on Google or here.

Software says s8-50f_150821

Is this normal?
 

Attachments

  • 20351E9F-E318-4B79-BA70-E50CF1DEDDEA.jpg
    20351E9F-E318-4B79-BA70-E50CF1DEDDEA.jpg
    165.8 KB · Views: 263
Minto107

Minto107

Senior Member
Aug 10, 2013
3,937
1,385
21
kobir said:
Hi just wanted to check what the latest build everyone has?

I used the kit kat firmware here then upgraded

It's now at s8-50f_s000479_160216_row

That build doesn't come up in searches on Google or here.

Software says s8-50f_150821

Is this normal?
Click to expand...
Click to collapse
Yeah it's the newest. Lenovo forgot that this device still exists

Sent from my SM-N950F using Tapatalk
 
S

syafiq300

New member
Sep 6, 2018
2
0
stock rom

S8-50LC firmware version 151016 S000456 - thanks to @Minto107 for providing download link. If download link does not works, please ping @Minto107
can you give me the another link? i can't open this one.
 
R

relic

Senior Member
Aug 15, 2006
263
15
did you notice any improvements? I am doubting if i should update mine. Have is on 4.4 still and I heard updating just makes it worse!
 
Minto107

Minto107

Senior Member
Aug 10, 2013
3,937
1,385
21
relic said:
did you notice any improvements? I am doubting if i should update mine. Have is on 4.4 still and I heard updating just makes it worse!
Click to expand...
Click to collapse
Yeah. Do not update if you like your S8. Lollipop is usable but has lots of bugs. Lenovo released it just because they said they will. It's pure android with ugly launcher on top of it

Sent from my SM-N950F using Tapatalk
 
K

kejkla

Member
Oct 27, 2018
6
0
Help me please

Hello I have bricked Lenovo TAB S8-50F and I dont know how to repair it. When I turn it on (normal or with volume-/+/both) it reboot itself once (on first boot there is something like "boot image digital verification failed" but it is there like 100ms befor it reboot) and on second boot there is only "FastBoot Starting...". I cant connect with adb and I cant go in recovery. Also i tried Intel flash tool but it failed. On "fastboot devices" command I can see it there but all other commands I tried was unsuccessfull. Help me please. :(

Log from Intel tool:
10/28/18 00:53:55.177 INFO : [Port 1/4] Start flashing the flash configuration with dnx_os start state for Baytrail3C02EAC3
10/28/18 00:53:55.178 INFO : [Port 1/4] Starting flash ...
10/28/18 00:53:55.178 INFO : [Port 1/4] Flash started
10/28/18 00:53:55.178 INFO : [Port 1/4] Sleep 500 ms before executing first flash command
10/28/18 00:53:55.679 INFO : [Port 1/4] Running `"C:\Program Files (x86)\Intel\Platform Flash Tool Lite\fastboot.exe" "-s" "Baytrail3C02EAC3" "flash" "osloader" "C:\Users\Petr\Desktop\lenovo\Lenovo_S8-50F_S000143_140929_4.4.2\Lenovo_S8-50F_S000143_140929_4.4.2\Firmware\efilinux.efi"` command
10/28/18 00:53:55.779 INFO : [Port 1/4] Command `"C:\Program Files (x86)\Intel\Platform Flash Tool Lite\fastboot.exe" "-s" "Baytrail3C02EAC3" "flash" "osloader" "C:\Users\Petr\Desktop\lenovo\Lenovo_S8-50F_S000143_140929_4.4.2\Lenovo_S8-50F_S000143_140929_4.4.2\Firmware\efilinux.efi"` succeed
10/28/18 00:53:55.779 INFO : [Port 1/4] Running `"C:\Program Files (x86)\Intel\Platform Flash Tool Lite\fastboot.exe" "-s" "Baytrail3C02EAC3" "boot" "C:\Users\Petr\Desktop\lenovo\Lenovo_S8-50F_S000143_140929_4.4.2\Lenovo_S8-50F_S000143_140929_4.4.2\Firmware\droidboot.img"` command
10/28/18 00:53:56.259 INFO : [Port 1/4] Command `"C:\Program Files (x86)\Intel\Platform Flash Tool Lite\fastboot.exe" "-s" "Baytrail3C02EAC3" "boot" "C:\Users\Petr\Desktop\lenovo\Lenovo_S8-50F_S000143_140929_4.4.2\Lenovo_S8-50F_S000143_140929_4.4.2\Firmware\droidboot.img"` succeed
10/28/18 00:53:56.259 INFO : [Port 1/4] Running `Sleeping for 40 seconds` command
10/28/18 00:54:36.259 INFO : [Port 1/4] Command `Sleeping for 40 seconds` succeed
10/28/18 00:54:36.259 INFO : [Port 1/4] Running `"C:\Program Files (x86)\Intel\Platform Flash Tool Lite\fastboot.exe" "-s" "Baytrail3C02EAC3" "oem" "start_partitioning"` command
10/28/18 00:54:36.306 WARNING: [Port 1/4] Command `"C:\Program Files (x86)\Intel\Platform Flash Tool Lite\fastboot.exe" "-s" "Baytrail3C02EAC3" "oem" "start_partitioning"` failed
10/28/18 00:54:36.306 INFO : [Port 1/4] Retrying `"C:\Program Files (x86)\Intel\Platform Flash Tool Lite\fastboot.exe" "-s" "Baytrail3C02EAC3" "oem" "start_partitioning"` command
10/28/18 00:54:36.352 ERROR : [Port 1/4] Command `"C:\Program Files (x86)\Intel\Platform Flash Tool Lite\fastboot.exe" "-s" "Baytrail3C02EAC3" "oem" "start_partitioning"` failed
10/28/18 00:54:36.352 ERROR : [Port 1/4] Flash failed (Command type: Fastboot)
 
Last edited:
Minto107

Minto107

Senior Member
Aug 10, 2013
3,937
1,385
21
All those things already happened, if you'd use search I bet you'd find an accurate answer on how to resolve your issue. I'd help myself but I dont use S8-50 for more than a year(its just laying around as backup if my Tab A would refuse to work) so I would make few mistakes here and there instead of helping, but if you can pinpoint to me what happened before you got there and you've actually tried to do and what failed I think I can at least point you in the right direction. So just quote my post and tell me in points what happened

Sent from my SM-N950F using Tapatalk
 
K

kejkla

Member
Oct 27, 2018
6
0
Minto107 said:
All those things already happened, if you'd use search I bet you'd find an accurate answer on how to resolve your issue. I'd help myself but I dont use S8-50 for more than a year(its just laying around as backup if my Tab A would refuse to work) so I would make few mistakes here and there instead of helping, but if you can pinpoint to me what happened before you got there and you've actually tried to do and what failed I think I can at least point you in the right direction. So just quote my post and tell me in points what happened

Sent from my SM-N950F using Tapatalk
Click to expand...
Click to collapse

It broke when i was doing factory reset. After it wont boot. I was searching around all internet and didnt find solution to my exact problem. I tried lots of tools and stuff. The thing is that adb fastboot and recovery doesnt work so i dont know how should i repair it...
 
B

Brianakin

Member
Apr 24, 2012
25
2
I should have known better...

I have combed this thread for days figuring out how to get my S8-50F booting and finally did with KitKat firmware. Then what did I do? I ran the S8 Unlocker on top of it which I eventually realized is only meant for LP!!!!!! So I fear I have a completely bricked tablet. I can hold the 3 buttons down to get to fastboot mode, but no matter what I try to flash with the Intel Phone Flash tool, it wants to reboot and that only gets me a bunch of gibberish (below). But does anyone know if it's possible to flash something in fastboot mode that can fix my bootloader (I assume it's the bootloader that is doing this)? Or some other "back door" process that can unwind what the S8unlocker did to it?


Thanks in advance.
 
Last edited:
R

relic

Senior Member
Aug 15, 2006
263
15
This is by far the best hardware built tablet I Owned. and I'm really sad noone was able to flash custom rom on it. I'm afraid to update stock rom to lollipop as it is buggy. I wish someone can miraculously revive it. The specs of new tablets are mediocre considering how smooth the s8 runs for 4 years now.
 
You must log in or register to reply here.

Similar threads

djbenny1
[Q] Lenovo S8 (S8-50) Tablet - Possible Support?
Replies
564
Views
175K
L
lukpol
C
[Q&A] Lenovo phones / Cybermaus ROM's (A750, A789, P700i, A660)
Replies
1K
Views
397K
H
haumich_blau
cron0s879D
Smartphone Lenovo A820
Replies
793
Views
362K
G
giaur
U
Lenovo Vibe X2
Replies
535
Views
334K
H
Half ice
Snoop05
[OFFICIAL][TOOL][WINDOWS] ADB, Fastboot and Drivers - 15 seconds ADB Installer v1.4.3
Replies
2K
Views
6M
candywayne
candywayne

Top Liked Posts

24 Hours All time
  • There are no posts matching your filters.
  • 64
    jazzespresso
    jazzespresso
    Lenovo TAB S8-50 - Stock Firmware ROM/Root/emp CWM Session, and Support

    Hi All,
    I have hard time to figure out since there's no dedicated thread for this tablet. I know you can find couple of posts related to this tablet here in XDA, but again I like all the info for this tablet in one page :D
    My idea here is put all together here in XDA forum, can't promise you that this will be ultimate guide for this tablet, but at least this may help you get started.

    By the way; there are 3 models of the TAB S8-50:
    • Lenovo TAB S8-50F (WiFi)
    • Lenovo TAB S8-50L (WiFi+ Data)
    • Lenovo TAB S8-50LC (WiFi+LTE (Voice)
    Click to expand...
    Click to collapse

    Lenovo Official Stock Firmwares
    Lenovo Official Stock Full ROM (TABS8-50F_140929)

    KitKat (Official or Users provided Firmwares)

    TABS8-50F_USER_S000143_1409291652_WW14_BMAIN_ROW_US
    This is official full stock ROM that comes with device when you first open it (then gets several update patches after that).
    Download it and unzip it, you should see doc "how_to_download.docx", follow the instruction to flash firmware above. There's also Lenovo_TAB_S850_V1.0.1.msi for Windows drivers in case you needed.

    Update (official patch): Lenovo Official Stock ROM (S000143_140929_ROW_TO_SS000200_150121_ROW) - a big thanks to @KainXSS for getting this for us!
    Important: this is update zip that Lenovo pushed the device, it is NOT full ROM. It will most likely break the root, so use the root method here again to re-root once you got updated.
    S8-50F_S000143_140929_ROW_TO_S8-50F_S000200_150121_ROW

    Update (offical patch): Lenovo Official Stock ROM (S000164_141103_ROW_TO_S000185_141203_ROW)
    Important: this is update zip that Lenovo pushed the device, it is NOT full ROM. It will most likely break the root, so use the root method here again to re-root once you got updated.
    S8-50F_S000164_141103_ROW_TO_S8-50F_S000185_141203_ROW_WC5F.zip

    Lenovo Offical Stock ROM ( TABS8-50LC_141010) - a big thank to @tigr72 for providing this firmware
    tabs8-50lc_s139_141010_ww14_bmain_row_us.rar

    Lollipop (Official or Users provided Firmwares) - Update 11/23/2015

    A big thank to both; @mac231us and @Shump for providing following information below -
    If you have questions, you may ask @mac231us, @Shump, @balika011, and @Minto107, I am sure they will be happy to help you out whenever they can, but be nice to them!

    Lollipop TWRP backup S8-50F_S000456_151016_ROW
    S8-50F http://forum.xda-developers.com/showpost.php?p=63598258&postcount=947

    @bailka011 Unlock Tool
    https://balika011.me/dl/S8unlocker.zip
    @Shump 's excellent explanation of how balika011 unlock tool works: http://forum.xda-developers.com/showpost.php?p=63716397&postcount=1085

    Updated flash tool;
    https://01.org/android-ia/downloads/intel-phone-flash-tool-lite


    S8-50LC firmware version 151016 S000456 - thanks to @Minto107 for providing download link. If download link does not works, please ping @Minto107
    http://tab-dl.ota.lenovomm.com/dls/v6/S8-50LC_S000456_151016_ROW_WCC5.zip
    Click to expand...
    Click to collapse

    Root Methods

    Root (method 1): - - a big thank (спасибо) to Xakep @tigr72 at Lenovo-forums.ru
    Root_S8-50LC_tab
    This is for S8-50LC, but it works for S8-50F too. Download it your PC (windows only) and hook up your tablet to your PC, and double click on Root_S8-50LC_tab.exe, it should flash SuperSu and root your device.
    it is important that your device can be recognized by ADB command in order to root tool work (test your adb connection: adb devices, make sure it connects to your device)
    Check @Hash.H's post here for detail instruction; Official "How To" root Lenovo Tab S8-50

    Root (method 2):
    Check @bogdann8's post here - this method may come handy if you get new firmware upgrade and above method no longer works, then this may be another way to root;
    Lenovo S850 (ROW) Rooting (manual process)
    Click to expand...
    Click to collapse

    Installing Temp CWM Session

    Custom Recovery installing Temp CWM Session (method 1): --> don't use this, use method 2 CWM below
    Based on this Russian forum, this works for all variant of Lenovo S8-50L, S8-50F, etc. In fact, I tested and yes it does work.
    CWM Recovery for Lenovo S8-50F

    Instruction to install CWM:
    • Make sure that your computer is not connected to other Android phones
    • Make sure that you have installed the ADB driver for S8-50 tablet
    • Make sure that the tablet is turned on USB debugging
    • Connect the device to your computer via USB
    • Download IntelAndroid-FBRL_LF_Edition.7z file, unzip it on your PC's desktop, and run the program called launcher.bat
    • If all the conditions and requirements are met, once finalized, the program automatically closes, the tablet will automatically restart and boot into CWM Recovery, from there you can perform full-nandroid backup or any other stuff.
    • p.s: you need to repeat above steps each time you want to use CWM

    Custom Recovery installing Temp CWM Session (method 2):--> Use this CWM from @social-design-concepts
    If method 1 does not works for you, try @social-design-concepts Temp CWM session. See his thread for more info and instruction. I have tested this, it works. It seems like you can also restore your CWM nandroid backup with this, see @Lander00 post.
    Temp CWM Session by @social-design-concepts

    For Linux stuff - Tethered CWM and Phone Flash Tool:
    Please @Maheshwara 's post here:
    http://forum.xda-developers.com/showpost.php?p=60559734&postcount=273
    I also like to thank both @kandalph and @Maheshwara, sharing their finding and helping this community.
    Click to expand...
    Click to collapse

    How to flash stock firmware
    How to flash stock firmware using How to flash stock firmware tool:
    Follow this instruction if you like to flash full stock firmware to your device, please also http://lenovo-forums.ru for some additional info if you like.
    See post #90
    Click to expand...
    Click to collapse

    Additional Info
    Additional Info:
    Lenovo S8-50 tablet (Russian user forum)
    Use Google translate to translate - to download stuff from this forum, you need to register the forum.

    [Q] Lenovo S8 (S8-50) Tablet - Possible Support?
    Some useful discussing thread, go review it, there's some additional info there as well.
    Click to expand...
    Click to collapse

    P.s: The last firmware upgrade (build 141203) that Lenovo pushed changes tablet's default DPI 240 to 320. If you happened to get upgrade before root, re-root it and then modify build.prop's to ro.sf.lcd_density=240. The 240 is tablet native default DPI. There's no word when Lenovo officially fix this, see official lenovo user forum below:

    http://forums.lenovo.com/t5/Other-Android-based-Tablets/Re-Tab-s8-50-Latest-update-changes-resolution/td-p/1825209

    Update: ‎01-28-2015 11:06 AM
    Here's one of the stupidest respond from Lenovo Tech Support about their screwed up DPI - this simply tells you that they will keep 320 DPI for any new upcoming updates. Now, why they do this!?, we don't know nor they are giving any technical explanation, but we all know that original native DPI of this tablet is 240.

    Solution! Re: Tab s8-50 - Latest update changes resolution?
    Options
    ‎01-28-2015 11:06 AM

    At this time, the design for the S8-50 tablet image will be maintained at a DPI of 320.

    As noted in this discussion, there are several work-arounds available for customers who prefer a lower setting.

    Thank you to everyone who contributed to identifying the issue and the work-arounds.
    Amy Tupper
    Technical Resolution Lead, Pervasive Issues
    Lenovo US
    Click to expand...
    Click to collapse

    Increasing Headset Volume
    Increasing Headset Volume
    A few of you complain about how low the headset volume, to increase it a bit, see the instruction here in this post;
    Increasing Headset Volume Mode by me:p
    Click to expand...
    Click to collapse

    Additional Lenovo Apps
    Additional Lenovo Apps
    Here's some newest Lenovo apps (beta) that is not included in official firmwares. Some apps are updated, most likely included as final version upcoming firmware (depends on which region you are on).
    you already may have these apps, before installing, make sure you take a backup so that you can revert it back to original.
    Lenovo_Apps_Beta.zip

    More updated apps will be posted here...
    Click to expand...
    Click to collapse

    Using Xposed Framework
    XPOSED:
    Warning!!:
    Please note official @rovo89 's Xposed should support Intel x86 devices now. You may use that. Below is just some workaround from Asus thread x86 in case orginal Xposed thought some may find it useful.
    Do not try this if you don't know what you are doing or if you don't have full nandroid backup. This is related to Xposed apps for some x86 devices that causes soft-reboot and
    following is a work-around solution from ASUS thread (since it has x86 intel CPU). As I am not heavily using xposed apps, I have not tried this method.

    *** Install Xposed: Root is a MUST. USB debug turned on. Windows only and Driver for Intel and ASUS must be ready on PC.

    Step1: download xposed apk and install the apk. DO NOT RUN APP AND DO NOT INSTALL FRAMEWORK.
    Step2: Run command promt (Run / cmd). assume adb folder is on C:\ drive and you are now in C:\ADB
    Step3: Type following (or copy and paste)

    adb devices (make sure your phone show!)
    adb shell (hit Enter)
    su (hit Enter, then look on your phone and touch OK)
    echo 148 > /data/data/de.robv.android.xposed.installer/conf/jit_reset_offset (hit Enter)
    chmod 664 /data/data/de.robv.android.xposed.installer/conf/jit_reset_offset (hit Enter)

    Step4: Now go to app drawer and run Xposed which you installed earlier. Touch "Framework" and touch "Install/Update"
    DONE. Now install addons.​
    http://forum.xda-developers.com/android/help/asus-zenfone-5-zenfone-6-to-t2839984
    Click to expand...
    Click to collapse


    Help/Support/Troubleshoot

    Help/Support/Troubleshoot:
    Remember and always keep in mind; just because I posted this thread out here does NOT mean I am your tech-support. This post provided as it is information only.
    However, you can still post your questions/issues here, and maybe I can or someone else can help you out, this is user driven community, so it is all about sharing and passing the knowledge to each others.
    If find some additional info, tricks, full official firmwares that's not posted here, lenovo apps, etc., please do let me know so I can post them here, so others can benefit as well.
    Click to expand...
    Click to collapse

    If you find this thread helpful, please click THANKS button:p
    .
    .
    View
    14
    S
    social-design-concepts
    Accessing the Lenovo TAB S8-50 UEFI Setup

    Accessing the Lenovo TAB S8-50 UEFI Setup :
    You will need the following in order to access and navigate the uefi setup :
    1. USB OTG Cable
    2. Powered USB Hub
      note : I tried 4 powered usb hubs and 2 usb-otg cables before finding a pair that work.
    3. efibootmgr binary here : View attachment efibootmgr.zip
      note : I did not port efibootmgr simply complied it from source found here.
    • Step 1. Extract the View attachment efibootmgr.zip somewhere on you computer and push efibootmgr32 to /data/local/tmp/
      Code: 
      adb push efibootmgr32 /data/local/tmp/efibootmgr
    • Step 2. start an adb shell and navigate to /data/local/tmp
      Code: 
      adb shell
[email protected]:/ $ cd /data/local/tmp
    • Step 3. as root change permission of efibootmgr
      Code: 
      [email protected]:/data/local/tmp $ su
[email protected]:/data/local/tmp # chmod 6755 efibootmgr
    • Step 4. using efibootmgr
      Code: 
      [email protected]:/data/local/tmp # ./efibootmgr -?
./efibootmgr: invalid option -- ?
efibootmgr version unknown (fix Makefile!)
usage: efibootmgr [options]
        -a | --active         sets bootnum active
        -A | --inactive       sets bootnum inactive
        -b | --bootnum XXXX   modify BootXXXX (hex)
        -B | --delete-bootnum delete bootnum (hex)
        -c | --create         create new variable bootnum and add to bootorder
        -D | --delete-by-label delete ALL boot entries with the same label
        -d | --disk disk       (defaults to /dev/sda) containing loader
        -e | --edd [1|3|-1]   force EDD 1.0 or 3.0 creation variables, or guess
        -E | --device num      EDD 1.0 device number (defaults to 0x80)
        -g | --gpt            force disk with invalid PMBR to be treated as GPT
        -H | --acpi_hid XXXX  set the ACPI HID (used with -i)
        -i | --iface name     create a netboot entry for the named interface
        -l | --loader name     (defaults to \elilo.efi)
        -L | --label label     Boot manager display label (defaults to "Linux")
        -n | --bootnext XXXX   set BootNext to XXXX (hex)
        -N | --delete-bootnext delete BootNext
        -o | --bootorder XXXX,YYYY,ZZZZ,...     explicitly set BootOrder (hex)
        -O | --delete-bootorder delete BootOrder
        -p | --part part        (defaults to 1) containing loader
        -q | --quiet            be quiet
           | --test filename    don't write to NVRAM, write to filename.
        -t | --timeout seconds  set boot manager timeout waiting for user input.
        -T | --delete-timeout   delete Timeout.
        -u | --unicode | --UCS-2  pass extra args as UCS-2 (default is ASCII)
        -U | --acpi_uid XXXX    set the ACPI UID (used with -i)
        -v | --verbose          print additional information
        -V | --version          return version and exit
        -w | --write-signature  write unique sig to MBR if needed
        [email protected] | --append-binary-args file  append extra args from file (use "-" for stdin)
      Code: 
      [email protected]:/data/local/tmp # ./efibootmgr -v
BootCurrent: 0000
Timeout: 10 seconds
BootOrder: 0000,0001
Boot0000* EFI Hard Drive        ACPI(a0341d0,0)PCI(17,0)Controller(0)
Boot0001* EFI Internal Shell    MM(b,fff68000,fff97fff)
    • Step 5. set next boot option / power off tablet
      note : originally i used efibootmgr -n 0002 for setup but after accessing the setup menu this this boot option was no longer available ?
      not sure what happened but maybe someone would be nice enough to post the output of efibootmgr -v for me.
      Code: 
      [email protected]:/data/local/tmp # ./efibootmgr -n 0001
BootNext: 0001
BootCurrent: 0000
Timeout: 10 seconds
BootOrder: 0000,0001
Boot0000* EFI Hard Drive
Boot0001* EFI Internal Shell
      Code: 
      [email protected]:/data/local/tmp # reboot -p
    • Step 6. Connect USB OTG cable , powered USB Hub, and keyboard to the tablet and power on.
    • Step 7. Exit the EFI Shell by typing exit then hit Enter
      1.jpg
    • Step 8. Scroll down to Device Manager then hit Enter - Hit Enter again to select System Setup
      2.jpg3.jpg
    • Step 9. Scroll down to boot and hit Enter
      4.jpg
    • Step 10. We need to disable UEFI Fastboot in order to be able to access the setup and boot manager directly from the keyboard.
      Scroll down to fastboot and hit Enter arrow up and select disable and the press Enter the hit F4 to save changes.
      5.jpg6.jpg
    • Step 11. Hit Esc to return to the Main Setup Menu, Scroll down to Commit Changes the hit Enter, Hit Enter to confirm changes and the device will reboot.
      You can now access the UEFI Setup by hitting F2 when powering the tablet on, or you can access the boot manger by pressing F7
      7.jpg8.jpg

      In order to boot a traditional Linux distribution or Windows you need to change the OS Selection from Android to Windows 8.x tne the Boot Setup in the UEFI Setup menu.
      DSCF3088.jpg

    These instructions are awful.
    View
    12
    B
    banmeifyouwant
    My custom kernel now in stable stage.:cool:
    Fully working, but the camera.
    I'm looking forward to someone's camera fix.:angel:

    (It's time to start CM12.1 or CM13 development!)
    View
    12
    Spitras
    Spitras
    Downgrade from LP 5.0 to KK 4.4

    Hello,

    Since some of you been asking for full translation and files uploaded from Russian Lenovo forums, here it is.

    This is not my guide, original site: lenovo-forums.ru
    Thanks for VVizard for this guide. Im not responsible for any damage to your equipment. You need to understand what you're doing.

    Latest Phone Flash tool version here

    Downgrading procedure:
    1. Download stock firmware for your tablet. Either it is F, L or LC variants for Phone Flash Tool. This should be original, unmodified stock firmware, not TWRP backup or something.
    2. Download the archive TABS8-50_Otkat.rar. Extract this rar to original firmware folder. You need to copy and replace existing files. (Suggestion: You might want to have 2 copies of original firmware, one unmodified, another with this rar extracted, just in case of course)
    3. Run Phone Flash Tool
    4. Browse -> open the file from the firmware (step 2) -> pft_flash_lte_normal.xml (Dont mind if it says lte, if your tablet is F and you downloaded F firmware it will flash F)
    5. Turn off your tablet
    6. Enter Fastboot mode. Volume down (-) and power button.
    7. Plug tablet to PC, it should be detected by Phone Flash Tool.
    8. Click Flash
    9. If Phone Flash Tool shows FINISHED - in any way do not disconnect from a computer! Tablet still continues flashing on its own.
    10. After couple of restarts tablet should boot as normal.
    11. Finished. You can use your tablet with KK firmware now.
    12. Don't forget to set Region Code

    How to install 5.0 Again:
    Via OTA updates all over again, from version S000143

    The recovery of the tablet
    Perhaps you once wanted to downgrade from 5.0 to 4.4 - and now the tablet doesn't work, error like Boot failed: EFI Hard drive and tablet load Bios but does not start. A little instruction.
    1. Downlaod repair_Bios.rar and unzip it to the root of any drive.
    2. Run Phone Flash Tool (version 5.2.4)
    3. Browse -> open the file from the archive -> flash.xml
    4. Turn off the tablet
    5. Hold volume buttons (both) and the power button. The tablet should go into Fastboot Starting...
    6. Plug tablet to PC, Phone Flash Tool should detect it (Some issues have been reported when plugging into front USB ports, USE ONLY BACK USB PORTS)
    7. Click Flash
    • Since my tablet is S8-50F, after repair_Bios.rar in droidboot it was determined as S8-50LC. Don't worry, after a full flash everything will fall into place everywhere and will be determined correctly.
    • During the firmware repair_Bios.rar long "does nothing". Do not worry, just wait.
    8. The firmware should pass successfully, the tablet itself will boot in FASTBOOT MODE.
    9. Use Downgrading procedure to get back to stock KK firmware.
    10. Read all instructions carefully
    11. Flash a manual roll back from LP 5.0 to KK 4.4.

    After 8th paragraph do not turn off Tablet, let it stay in Fastboot Mode until you figure out how to downgrade!

    I Hope it will be useful to someone as it was for me.

    PS. After downgraded to KK i updated to LP via OTA again. LP build is terrible, even Youtube is lagging after clean installation, everything is buggy, im thinking going back to KK until lenovo releases more OTA's or someone manages to build CM for it :)
    View
    12
    S
    social-design-concepts
    Minto107 said:
    I'll do my best ;) we will see if it will succeed ;)

    Wysłane z mojego GT-I9305 przy użyciu Tapatalka
    Click to expand...
    Click to collapse

    Screenshot_2016-02-29-22-27-49.png
    View

New posts