yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] jipeng:
Hallo,

i got it last Satday, all are perfect. :D

But i have noticed, there are two types of s8-50, one has resolution 1280X800, and one has 1920x1200. Mein is 1920x1200. One has name a5500, what is the code of other?

are the size the same? i want buy case for my new one, but not sure, if i can find any.

best regards
[Android Q&A, Help & Troubleshooting] RaawrItsTomi:
Infact no. There is only one version of s8-50 and that is 1920x1200 (fullHD), the other you mentioned is probably the a8
[Android Q&A, Help & Troubleshooting] mackhenri:
Yes. The other tab is A8. I got a flip cover for me but it has made the tab a little heavy. U can get the cover on amazon. I got it from amazon India
[Android Q&A, Help & Troubleshooting] jipeng:
Thank you, yes, you are right, but in germany it was wrongly used, like this

http://www.amazon.de/Lenovo-Tablet-...?ie=UTF8&qid=1428921940&sr=8-1&keywords=a8-50

i have just found one case for mein s8-50.:o
[Android Q&A, Help & Troubleshooting] ts1506:
In case someone wants to buy a Lenovo S8, here is a video going over the pros and cons of the device.

I hope this will make your purchase decision simpler.

[YOUTUBE]MrXGdPdIxi4[/YOUTUBE]

You are confused among S8-50 and A8-50. S8-50 has one model, and thats 1920x1200. The A8-50 on the other hand has codename A5500 and has a 1280x800.
[Android Q&A, Help & Troubleshooting] busyinny:
Thanks, I will try it. Do not remember opening this tab up before (have opened others) and was trying to see if I can avoid it, but at this point it has been a week or so and nothing else has worked, so not much to lose.
[Android Q&A, Help & Troubleshooting] nekubg:
Got Xposed on my S8-50F. Installed and activated mods, rebooted and they to not seem to work at all, got Xblast and Wanam so far. Any ideas?

Edit: Got Gravity Box it seems to be working, other modules are still not working.
[Android Q&A, Help & Troubleshooting] MeDo ALi:
I tried your solution but once the flash tool starts to initiate the command "boot droidboot" the tablet shows EFI hard drive message again and restarts in shell .. I don't know what to do please help me!
[Android Q&A, Help & Troubleshooting] dcccxda:
My take on the autodimming problem

First of all, the fact that the Tab S8 has this annoying habit of controlling the backlight at its whim is very, very bad. I almost returned the tablet because of that, now I am glad I didn't.

The tablet has this feature of adjusting the backlight and the colors depending on the content displayed on the screen. For darker images it dims the backlight, while for whiter content it makes the backlight brighter. This works badly and is very annoying. The factory-installed firmware was really awful in this respect, consequent updates changed it slightly for the better.

The feature had nothing to do with thermal throttling, and although it looked a probable cause, work done by other contributors here proved it. The feature is actually called Content Adaptive Backlight Control, it is implemented in the Intel graphics driver (i915), and theoretically it should have been controllable in software. Not so easy though.

The Lenovo S8 i915 driver provides an apparent way of controlling the CABC behavior through the /sys/kernel/debug/dri/64/i915_cabc_enable file. Writing 0 to this file should disable the feature. While writing to it definitely affects the backlight adaptation feature to some extent, it never disables it. Also, the build.prop file contains a property seting

persist.sys.cabc.enable=0

which should disable the feature, but doesn't work.

By looking at different i915 driver code versions on the net, I finally discovered a setting that, once inserted in the build.prop seems to work. It declares that the tablet does not support the CABC feature at all, tricking the driver in not even trying to use it. The property setting is:

ro.service.cabc.supported=false

Of course, it needs root and a reboot after inserting the line.

The above details are valid for the KitKat firmware, but it should be somewhat similar for Lollipop, too.

Hope this helps,

Dan
[Android Q&A, Help & Troubleshooting] CaSspeR:
Hello , could you provide a way to install Xposed S8-50L ?
[Android Q&A, Help & Troubleshooting] ghost_aud:
hello. thank you so much for the detailed information provided here. I followed every step and I still cannot do it. I don't know how many times I have to ask before someone actually helps me. I have lenovo tab s8-50lc. I downloaded the ADB driver. also all the drivers mentioned here. But still my pc cannot recognise my phone while in downloading mode. I don't know how to solve this problem. some help would be really appreciated. :good::good:
[Android Q&A, Help & Troubleshooting] social-design-concepts:
What OS? Changed usb cables? Have you tried this driver? Remember download mode is not Intel SoC on these devices its a adb / fastboot driver, since you say download mode what version of Phone Flash Tools? You sure it's not your PC, i probably have a million dollars if i was given a nickel for every time windows caused me a usb hardware error.
[Android Q&A, Help & Troubleshooting] mrhamed:
I tried to unlock the "S8-50LC" via "bailka011 Unlock Tool" but it brick and I flashed stock firmware... and in Russia forum I can't understand/found how to unlock the "S8-50LC" to install permanently TWRP, can someone describe here please?!
[Android Q&A, Help & Troubleshooting] mac231us:
There are so many messages almost every 2 days someone has same issues you have scroll back and see... Really ...think I tried helping someone out maybe 7 days back or so ...the board is full of them

http://xdaforums.com/showthread.php?p=65200174

I even posted live links post 1381 or 1341? Forget.. Just search... and even explained what 3 button method is nowhere was it explained... actually there are only 2 buttons.. So hold volume up down and power then release power on vibrate

here many many

http://xdaforums.com/showthread.php?p=64854957
[Android Q&A, Help & Troubleshooting] doomcz:
Hi, I have problem with my S8-50 battery life. After root, something happened and now, battery life is approx 3 days without any work, only WiFi active.

Today, I unplugged tablet from charger at 6 AM and now at 7 PM, battery says 64%. Whole day, tablet was idle, no work (I was on job and tablet at home).

Before root, tablet battery lasted for 7 days of light using - 0,5 hours of browsing Facebook and playing Solitaire.

What can be wrong? I did not install any apps after rooting. I rooted after update to Android 5.

Thanks for help.
[Android Q&A, Help & Troubleshooting] Minto107:
Android 5 is wrong ;) but my S8 has good battery life on lollipop. 3 days with 5hrs screen on time. Try to wipe cache. Sometimes it helps

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] mrhamed:
I have a Lenovo TAB S8-50LC (Firmware: S000456_151016_ROW) Lollipop and rooted with temp twrp session so I'd like to --> unlock boot-loader to install permanently twrp...

But after flash ESP.img file via fastboot, it did not unlock the boot-loader

I'm not newbie but for this case I need your help please...
[Android Q&A, Help & Troubleshooting] mrhamed:
I have a Lenovo TAB S8-50LC (Firmware: S000456_151016_ROW) Lollipop and rooted with temp twrp session so I'd like to --> unlock boot-loader to install permanently twrp...

But after flash ESP.img file via fastboot, it did not unlock the boot-loader :(

I'm not newbie but for this case I need your help please...
[Android Q&A, Help & Troubleshooting] aduhai:
Where did you get this lollipop rom for your tab ?
[Android Q&A, Help & Troubleshooting] Jspex:
5.1 is the official firmware version
[Android Q&A, Help & Troubleshooting] social-design-concepts:
Unless I missed an ota it's 5.0.1
[Android Q&A, Help & Troubleshooting] Jspex:
Looks like you missed an ota. Mine came as 5.1 out of the box and all I've done is flash twrp/su/xposed, no roms at all.
[Android Q&A, Help & Troubleshooting] KainXSS:
You have an A8-50, thats a completely different tablet than the S8-50(same battery though)
[Android Q&A, Help & Troubleshooting] Minto107:
A8 is not same and even similar to S8. S8 has better bigger screen, better CPU, camera etc and flashing unlocker for S8 you will hard brick your device

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[Android Q&A, Help & Troubleshooting] Jspex:
Well, that's my fault for not reading.
[Android Q&A, Help & Troubleshooting] aduhai:
I can't update my s8 -50 cl to lollipop yet. Maybe it isn't available yet in my country Malaysia.
[Android Q&A, Help & Troubleshooting] mrhamed:
One clear question: does release a tool to unlock boot-loader (TAB S8-50LC) to install permanently twrp?

One clear answer: Yes or No?
[Android Q&A, Help & Troubleshooting] JustPlayingHard:
The unlock tool is for F only???

If not, it allows for permanent install of twrp :)

Sent from my Lenovo Tab S8 (S8-50F)
[Android Q&A, Help & Troubleshooting] Minto107:
You can upgrade it manually ;)

Yes it does

It works for every Lenovo S000456(151016 if this number is incorrect) Firmware. Bootloader between all S8s is same and we run same firmware on both 3 versions so it works on every S8 running Lollipop bootloader ;)

PS. Got my new PC(motherboard, CPU and RAM memory to be clear :)) I'll try to do something for you guys but Lenovo sucks here. They haven't uploaded Lollipop sources so I will have to base ROM on Yoga 2 lollipop(first ROM will be pure stock based, but I know someone who fixed deep sleep issues(1% drop for 1 day[keep in mind that yoga with same hardware has 2x or 3x larger battery than S8-50X]) so hope he'll help me with this. Also I'll try to do something with this delays, lags. Hopefully they'll be gone if it's not problem in the Android(5.0.x was terrible release but my S3 worked pretty damn well on that so I expect S8 to do same ;))

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[Android Q&A, Help & Troubleshooting] JustPlayingHard:
Please make a ROM if you can (I would help but very newbie at ROM building [emoji14])

The stock Lenovo one is just terrible

Sent from my Lenovo Tab S8 (S8-50F)
[Android Q&A, Help & Troubleshooting] Minto107:
I'll do my best ;) we will see if it will succeed ;)

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[Android Q&A, Help & Troubleshooting] JustPlayingHard:
Cross my fingers. I love the tablet just the unoptimized software with pull it's self down to the ground :( and High five to you kind sir/Madame
[Android Q&A, Help & Troubleshooting] JustPlayingHard:
No way!!! You are awesome SDC!! Many high fives to you sir!
[Android Q&A, Help & Troubleshooting] Minto107:
Yeah SDC as always great job! Any ETA if I can ask? :)

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] social-design-concepts:
I hope to have something to test up by the end of the weekend and if not at least have my lenovo / baytrail / Intel_base device tree and other sources up so other users can build it.
[Android Q&A, Help & Troubleshooting] Minto107:
Nice to hear that. Hopefully I'll be able to setup my Ubuntu and try to do something. Are you planning to release a patch/version for LTE users? That would be great ;)

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[Android Q&A, Help & Troubleshooting] social-design-concepts:
The goal would be to have things enabled / disabled through build.prop / default.prop changes if possible.

As you see I'm using stock kernel for now as the goal is to have a base rom that is easily adaptable to other intel android baytrail devices.
[Android Q&A, Help & Troubleshooting] Minto107:
This is a great news! I played with build.prop of S8 a bit so far and I saw lte software 'switch'. How is the kernel? Does it cause any problems? I mean if Lenovo ****ed that too or just firmware :D

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[Android Q&A, Help & Troubleshooting] mac231us:
thanks so much! too much to ask but will you have an LC rom too? (data voice calling)

anyway great big step (the keyboard sludge lag is the one that is keeping me away from using this much on LL)
[Android Q&A, Help & Troubleshooting] Minto107:
Yes it will work with full support for LTE modem. As you've read it works on stock Lenovo kernel so you backup your LTE kernel and after ROM flash restore, then you will be able to enable Sim card via build.prop tweak ;)

This is how SDC imagines 5.1.1 ROM by himself ;)
[Android Q&A, Help & Troubleshooting] goku310702:
hi guys im trying install xposed on 5.0.1 lollipop but on cmd i have this message on last 2 moves
[Android Q&A, Help & Troubleshooting] Minto107:
You have to flash it through TWRP

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[Android Q&A, Help & Troubleshooting] mrhamed:
The "S8unlocker.zip" unlock tools does not unlock boot-loader of (S8-50LC with LP)

I did flashed "ESP.img" manually via fastboot but did not work too :(

Only temporary session could installed TWRP but it need PC for every TWRP access :(

Any solution to install permanently TWRP on S8-50LC with LP???
[Android Q&A, Help & Troubleshooting] panosfx:
Why you need TWRP?There is nothing to flash...

Στάλθηκε από το SM-G920F μου χρησιμοποιώντας Tapatalk
[Android Q&A, Help & Troubleshooting] Minto107:
I have S8-50L upgraded to S8-50LC and works for me. To flash i used Windows 7 Asus laptop. Make sure you've got all drivers set and working

SDC is bringing us CM12.1 this/next week so there'll be something to flash ;)

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] JustPlayingHard:
I hope SDC releases like a beta for some tests like you [MENTION=221068]minto[/MENTION] or me, or anyone else who's interested in the project
[Android Q&A, Help & Troubleshooting] Minto107:
Yeah that would be awesome. If I wouldn't have bandwidth limit even sources(that are 99% dropping on github this/next week) I would do some builds by myself and probably not only stock CM but also O3 or with Just Archi's optimizations ;) or even a Resurrection Remix(I strongly recommend it. Best custom ROM for me ;))
[Android Q&A, Help & Troubleshooting] JustPlayingHard:
That's a shame :(

Some optimisations would be good for this tablet[emoji14]RR is a good ROM ;) DU seems good for my N6P at the moment
[Android Q&A, Help & Troubleshooting] Minto107:
S6 couldn't carry up? ??? I haven't tried Dirty Unicorns but I think its almost the same as RR as both has too much settings[emoji14]but if you're not a Nexus user then stock is better. Always better. S3 loves TouchWiz even my G4 loves this UX(I don't know how it's called :P)

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[Android Q&A, Help & Troubleshooting] JustPlayingHard:
The S6 failed to please me with the new touchwiz and lack of custom development. Stock Android UI is probably the best Android UI on my opinion ??
[Android Q&A, Help & Troubleshooting] hama2:
new Ota update?

Today a new ota update . Any info about this?
[Android Q&A, Help & Troubleshooting] Minto107:
Oh that's good to see. Maybe Lenovo fixed the firmware? I've got S8-50LC so probably update will be delayed slightly. Check it out. You will loose perm recovery and root.

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---------- Post added at 10:12 AM ---------- Previous post was at 09:59 AM ----------

Hmmm I also got it

I will restore default build.prop and then try to update. I just hope that Lenovo hasn't updated bootloader. Or we will again be ****ed with stock firmware like on kitkat

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] fat-lobyte:
I have the same update.

I have rooted my device and slightly modified system image (installed XPosed, AdAway, BetterBatteryStats, ...). Can I safely use OTA update? Or do I need to do a factory flash or something?

I am also looking forward to SDC releasing 5.1.1 source and image! I hate being in the ROM-Desert, because Lenovo don't give a crap and only so few users have S8-50 :(
[Android Q&A, Help & Troubleshooting] Minto107:
You should have a clean system image for doing this. I will restore my /system and build.prop before updating and then I'll try to update soon. It's small update so I don't think it will lock bootloader and I'll tell you what's new in it in a while

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---------- Post added at 10:44 AM ---------- Previous post was at 10:32 AM ----------

Does any one have a stock recovery for lollipop. I've got perm TWRP and I can't flash it through TWRP... Or I need to reinstall whole firmware?

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---------- Post added at 11:07 AM ---------- Previous post was at 10:44 AM ----------

I will reinstall whole firmware ;)

Update zip for S8-50LC users :

https://drive.google.com/file/d/0B1rqpiMcpORZM0U3WTFDOWc5Rlk/view?usp=docslist_api

IMPORTANT INFO ABOUT THE UPDATE:

This update updates ESP so we will loose unlocked bootloader! If you need unlocked bootloader stay on S000456 firmware. Also I'm not sure if S8unlocker will work on this firmware. Hope [MENTION=6112002]balika011[/MENTION] will take a look on that

The only new app is Android For Work. I don't know what is this but I was able to install it on S000456 firmware and it looks like that

There is new default wallpaper looks very nice

There is also new WiFi driver

And this is all.

So far Dolby is probably not fixed(as there aren't any files that can fix it)

Lagging is probably not fixed too

Probably you'll be able to get back from this update to KitKat as it uses unsigned bootloader so you can take the update and if you don't like it just go back ;)

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] nachiket_xda:
Is it 5.1.1?
[Android Q&A, Help & Troubleshooting] JustPlayingHard:
Nope. Still 5.0.1
[Android Q&A, Help & Troubleshooting] Minto107:
Have you updated already? :)

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[Android Q&A, Help & Troubleshooting] social-design-concepts:
I haven't dug into the update / especially the new droidboot.img yet but looking at the yoga it could break your ability to root the device. I installed it on mine after editing the installation script to remove updating the esp and the flashing of droidboot.img I would suggest doing the same if you don't want to lose root or the unlocked bootloader.

Durning my next bud I'll download all three otas and edit them so they don't include the files that could break root.
[Android Q&A, Help & Troubleshooting] busyinny:
Very disappointed right now with this tab. It died on me about a month ago after about 13 months of rather casual use. Would go through battery rather quickly, then one morning would not boot up after charging. Have tried everything l could find on Internet, even disconnecting battery and leaving overnight. Considering buying a battery on eBay to try to replace but although I like the tab's specs, not sure I want to sink another $25 in it to try a battery when I am not sure that will solve the problem and it is stuck on 5.01.

First tab or piece of electronics in general that has died on me this early in its lifecycle and without any accident of any sort. Love thinkpads and they have lasted me a long time and gone through a lot with me, but quite disappointed from Lenovo on this.
[Android Q&A, Help & Troubleshooting] Minto107:
So Lenovo wants us to **** up with this tablet... Damn why don't they just stop updating it... How is the new update? Lagging a bit less?

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[Android Q&A, Help & Troubleshooting] szczesny:
You guys not suggest to update it on Rooted device ??????

Update says " bug fixes " , so maybe it repair awfull speakers sound.

If loose root, so maybe do it again same easy twrp method as before. What you suggest ?
[Android Q&A, Help & Troubleshooting] mac231us:
i tried updating on rooted LLollipop.,,,would not boot (sitting forever in the Lenovo screen even though went through the progress bar...tried wiping factory reset too did not work) in the end went back to KK (since could not do anything with it...may have a backup somewhere but just decided to go back to KK and start all over again,,,but did not go back to LL after seeing SDC's post-my only motivation to try an update on LL would be if the typing lag is taken care of)
[Android Q&A, Help & Troubleshooting] Minto107:
Next changes that I've found in zip:

1. New Dolby libs. Still digital plus but maybe it will fix sound distortion

2. Updated apps:

- Browser

- FM radio(maybe UI is fixed?)

- Wallpaper picker

- Email

3. New Intel Graphics driver

4. New Camera driver

5. New Bluetooth driver

6. Changes to LTE driver(L/LC only)

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] szczesny:
So it seems it should repair sound ,but you guys say you still have ( if had it after 5.0.1 update ) distorted sound from speakers ?
[Android Q&A, Help & Troubleshooting] dzidexx:
Hi, update changes also esp and droidboot, I don't know what will happen with root before/after this. Update-script(s8-50F) in attachement.

[MENTION=4821597]social-design-concepts[/MENTION]

Hi, do you think - if I will remove from updater-script these lines:

apply_patch_check("/system/bin/droidboot", "b38....0") || abort(""/system/bin/droidboot" has unexpected contents.");

apply_patch("/system/bin/droidboot", "-",

b38cbedd2a31b68776972e5e5268c3c15ebde3fe, 353556,

bee....0, package_extract_file("patch/system/bin/droidboot.p"));

↕

package_extract_file("esp.zip", "/tmp/esp.zip");

flash_esp_update("/tmp/esp.zip");

package_extract_file("droidboot.img", "/dev/block/by-name/fastboot");

(Only here I found any esp or droidboot)

After paste new script and repack ota.zip - can I flash updateOta without any bugs in root permissions?

I have also busybox and app opps in system - should I remove it before?
[Android Q&A, Help & Troubleshooting] Minto107:
I've just checked file that you've attached. It looks okay(I couldn't find any command about droidboot or esp. So it's fine). I recommend you to also delete droidboot and esp from OTA zip and flash it in custom recovery

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[Android Q&A, Help & Troubleshooting] dzidexx:
[MENTION=5387684]Minto107[/MENTION]

What are you talikng about? The attachement is without any changes. All ..esp.. and ...droidboot... lines are untouched.

I cannot delete anything from ota.zip - it will be 'corrupted'.

I haven't custom recovery and unlocked bootloader - so I cannot flash anything.

Here is updater-script wih my changes.
[Android Q&A, Help & Troubleshooting] Minto107:
So I've must missed that[emoji14]ES text editor isn't best :D why would it get corrupted? If you delete all lines and turn off signature verification(you will have to because of changed updater script. So has anyone flashed it so far? Better than first lollipop? If it's not any faster so I'm not going to mess with it at all

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[Android Q&A, Help & Troubleshooting] dzidexx:
Answer in stock recovery will be "file is corrupted". I didn't flash it yet.
[Android Q&A, Help & Troubleshooting] mac231us:
new graphics driver and lte driver might imply more responsiveness and better signal (though have no complaints in that department)...wishful thinking maybe-tempted to update
[Android Q&A, Help & Troubleshooting] Minto107:
Try with custom recovery. Make sure you've deleted all lines with those files and then you should be able to delete that from zip. Of course it will fail in Stock recovery because of mismatch in CRC/MD5 sums

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[Android Q&A, Help & Troubleshooting] Bartekreaper:
Hi guys, my dad was trying to update to the newest ota. But on tablet was root and it cant boot now, after wipe cache and factory reset/wipe data too... I tried to flash KK in Phone Flash Tool but there is a error and it stop on 28% :(

Anyone can help? On my Z3C never happened that "thing" ... maybe because i have Sony and its ****** Lenovo :silly: