yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] Minto107:
I'm getting Huawei MediaPad M3 in a month so I will most likely retire using S8 but I will still try to get you some builds ;)
[Android Q&A, Help & Troubleshooting] mac231us:
s850LC is unique in that like the Samsung tab s2 international versions (not tab s unless just the extremely rare S. American version) and Sony Z3 compact tablet that it catches U.S 4g LTE bands and does cellular calls...not so with Huawei, Asus etc (except one version of Mediapad m2 8.0 dav 802L which is again rare that gets most US LTE bands except a major one band 17) The network capability is one of the main reasons that this was a great find (s850lc) ...too bad the m3 8.0 (8.4 screen) has no variant that gets at least the partial list of U.S bands like the m2 8.0 dav 802L
[Android Q&A, Help & Troubleshooting] Minto107:
I wouldn't go for Huawei 'myself' but my carrier gives it for free, so I'm not complaining about that ;) personally, I would go for iPad mini, I'm surprised as I'm not an apple fan but I had it in hands and 4:3 is more comfortable to hold than S8 or M3 but my carrier sadly doesn't offer ANY apple tablet at all(while they still offer iPhone 5 and newer...) about LTE bands. Yeah it sucks but there's nothing we can do about it. It's US carriers fault, here in Europe all carriers uses same bands so just 'LTE' or 'International variant' is fine to use in whole Europe
[Android Q&A, Help & Troubleshooting] mac231us:
yes agree about the system here..only now do we have official unlocking but even that has to be done with some service on a device if bought from a carrier...the carrier subsidies are gone..instead they say no contracts...like anyone would be switching carriers every few months anyway...replaced by payment plans which are basically rent to own type plans...ridiculous prices when seen in total in exchange for ´freedom´ from contracts...the ipad mini is like the tab s2 8.0 the 4:3 reader type format is easier to look at but wider on the grip versus the portrait tab s and this s8-50 device
[Android Q&A, Help & Troubleshooting] przemo10371:
My bricked tablet Fixed

I had just fixed my tablet from total brick tablet ,only lenovo logo showing up and ,i will upload rar file with all files i used meaby i will help some people.

I will upload it shortly.

mega(Place dot)nz/#!MRNnjZRB!ST85JeiP-WMhwWn4cv4QeJnH6xlBf9KYPl87CX698Cg
[Android Q&A, Help & Troubleshooting] Lannig:
Thanks for the upload. For which variant of the tablet (F, L, LC) is this?
[Android Q&A, Help & Troubleshooting] przemo10371:
This is for f version but it should work at other version as well. Of course is easier to change version when tablet works. right ? ;)

Btw. this will make tablet runs on android 4.4 the version with big screen UI. That one with smaller sized menu. And if when updating system you get error you probably have damaged bootloader , and all you have to do is flash new one . To fix It you have to flash droidboot.img as your bootloader

(If you dont see droidboot.img anywhere in folder i probably already changed name to bootloader.img and all is left is flash) .

Och boy i got a bit carried away.
[Android Q&A, Help & Troubleshooting] make it ra1n:
Hi there [MENTION=5387684]Minto107[/MENTION], i have a small problem. I tried to flash KK when i was on LP, but something went wrong and now I'm sitting here with bootloop. All i can access is Fastboot (FastBoot starting...) and this menu which appears when u press Vol- and Power button (I'm not sure how it is called) if i try to use bios-fix. Any ideas?

---------- Post added at 13:45 ---------- Previous post was at 13:17 ----------

Also, [MENTION=8287679]przemo10371[/MENTION] i have downloaded your repair.rar, in ReadMe there is "flash red.xml" but there is no red.xml there

---------- Post added at 14:08 ---------- Previous post was at 13:45 ----------

Oh, wait. I just used [MENTION=8287679]przemo10371[/MENTION] second method (if tablet still doesn't want to boot) and it worked! Thanks guys, i thought I will have second cutting board here.
[Android Q&A, Help & Troubleshooting] przemo10371:
i can reupload with name fixed if you want :P
[Android Q&A, Help & Troubleshooting] make it ra1n:
Yes, could you please? And I hope you won't be mad if I save it to my cloud just in case I would mess something in my tablet?
[Android Q&A, Help & Troubleshooting] przemo10371:
i will upload with name fixed and also i will add data what you need to prepare to update from 4.4 to 5.0.1

(4.4 micro updates can be tricky and not always want to download)

---------- Post added at 06:26 PM ---------- Previous post was at 05:37 PM ----------

https://mega.nz/#!gNNTBSpK!jYe00sV41AuUY9dUkfvHzKowzjmDfCG72vHZ_zzK2Ag

Here you go
[Android Q&A, Help & Troubleshooting] make it ra1n:
Thanks a lot. I'm sure it will help not only me.
[Android Q&A, Help & Troubleshooting] Lannig:
Thanks again [MENTION=8287679]przemo10371[/MENTION]. I've downloaded your stuff and will keep it safe.

Much appreciated.

I'm generally happy with the tablet running Kitkat, but I'm having issues with different TV Replay and Pay-TV apps, presumably due to lack of DRM libs on this tablet (or so I've been told).

I might give Lollipop a try to see if that fixes it, and go back to Kitkat if that doesn't.
[Android Q&A, Help & Troubleshooting] chet_03:
bricked s8-50lc

I have a Lenovo s850LC, unrooted and way past warranty and for whatever reason, I decided to upgrade the system yesterday. Everything was fine then during the updating process (android with its guts out), then it just turned off. And until today I cant seem to turn it back on. (vol + or -, power btn 20+ secs)

I have been reading through this thread and I cant seem to find a similar case. I have installed the drivers and Phone Flash tool 5.2.1, to repair bios or flash the tab, but the thing is, My tab cant be detected by the computer. Wont do anything. help please?
[Android Q&A, Help & Troubleshooting] przemo10371:
Well in one of worse cases your usb port is broken.

Try lifting usb cable when pluged , best to put it on something like there (and if work dont move it untill everything ends)

In my case it worked cuz i had slightly damaged usb port

Of course you can try other ports in your pc

PS.You instlled drivers from my pack right ?

---------- Post added at 02:15 PM ---------- Previous post was at 02:09 PM ----------

and if you dont installed drivers from my pack you should becouse something might be missing
[Android Q&A, Help & Troubleshooting] chet_03:
Thanks for the quick reply, its very much appreciated!

As for your pack. yes I did... I think i got them all installed.

I think i forgot to mention this tab wont turn on, as in no logo, no vibrations... it just wont turn on after the system update. it just went blank.

i've tried leaving it to charge both adapter and computer... still no go, power buttons and vol+/- also no go...

then i saw your pack and tried it. but yeah, pc cant detect the tab. Will try the usb lift tho...

What else do you think i should do?
[Android Q&A, Help & Troubleshooting] przemo10371:
You could try to "unplug" "tapes" connecting battery to mother board for while connect them again and try to turn tablet on
[Android Q&A, Help & Troubleshooting] chet_03:
I tried lifting/adjusting usb cable, but still no go.

Also tried unplug the battery cable to the board + power btn. then reconnect, still no go.

also tried that then connected the usb with all 3 buttons pressed. no go.

Help...
[Android Q&A, Help & Troubleshooting] przemo10371:
Try this too:

Hold the power button for about 20 seconds without AC plugged then wait about 5 seconds and now with AC plugged in hold power button for about 20 seconds.

This is suppose to be and battery memory reset or something. Could work tho...
[Android Q&A, Help & Troubleshooting] chet_03:
Hi Guys, tried it but still no go. I have downloaded tons of other tools, but the main problem is it cant be read by the computer. Btw, used 3 diff computers on it, still no go... any more ideas?
[Android Q&A, Help & Troubleshooting] przemo10371:
How do you know if pc dont recognizes your tablet. Pc can detect device without telling you. You should check in Device Manager if there any undetected devices, or if you have something like Intel android adb interface, or adb google or something like tha.

Of course with tablet plugged into pc.
[Android Q&A, Help & Troubleshooting] chet_03:
Yep, checked device mgr to see if the tab is detected. no ADB, android or any of those kind present in the device manager when tab is connected.
[Android Q&A, Help & Troubleshooting] icanttinkofaname:
Hey guys,

Does anyone know of there is any solution to help get my otg working again? It refuses to recognise any drive that's attached. PC and power connections work perfectly fine. I don't know what has gone wrong or how to fix it. Is it likely to be a hardware failure?

I also recently discovered another issue. The tablet is no longer discovering any casting devices.

Would a factory reset possibly help to fix these issues?
[Android Q&A, Help & Troubleshooting] kmem:
Any word on development for the tab S8? Not asking for an ETA but several folks have said they had something in the works yet there is very little activity here lately.
[Android Q&A, Help & Troubleshooting] Minto107:
I want to start working on it, however so far I don't have possibility to do so

Wysłane z mojego Lenovo TAB S8-50LC przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] kmem:
Thanks Minto. Hope one day you will be able. What about SDC or jazzpresso? Did they throw in the towel?
[Android Q&A, Help & Troubleshooting] mac231us:
Can't watch it now..so am asking..what is this working solution for?
[Android Q&A, Help & Troubleshooting] mrhamed:
how to unlock boot loader permanently?
[Android Q&A, Help & Troubleshooting] Minto107:
On Lollipop by using unlock tool. It's permanent till you flash/update
[Android Q&A, Help & Troubleshooting] The_baytrail_guy:
for the auto dimming issue
[Android Q&A, Help & Troubleshooting] grfloater:
Hi guys,

I have a S8-50L. I have not used it for about a year. I tried yesterday to switch on, but it was soft bricked (bootloaders etc responding). I tried flashing stock image, but would not complete, stuck in EFI. So, I tried repair_Bios flash. Unfortunatelly, after first reboot, it lost adb drivers (later I read about "permanent" drivers through installing Android SDK). So, the process stuck and now I have a nice brick. No bootloader with any key combination. Tried with battery connector, but the tablet seems "naked". It boots, vibrates, shows battery charging indicator and that's it. Connecting USB to PC shows it as "MTP USB Device". The mounted drive, "LenovoTABdriver" has only two files, "Lenovo_TAB_S850_V1.0.1.msi" and "MagicPlus_setup.zip" (some Chinese music application, ruin from some installation, I believe).

Do I have a nice brick to remember, or there is any way to install from scratch?

Thanking you, Dimitry
[Android Q&A, Help & Troubleshooting] Minto107:
If it shows as MTP it means it had to boot to android. Especially if you see those drivers. Try adb then. If it won't work try to unplug battery and button combinations once again, after it vibrates plug USB to pc and try to flash stock
[Android Q&A, Help & Troubleshooting] mrhamed:
thank you for reply!

Are you sure? do you test is and install permanent TWRP as custom recovery?!

It seem so complicated :( can you provide step by step guide please?!
[Android Q&A, Help & Troubleshooting] Minto107:
I use it ;) and it's not that complicated ;) just follow the guide ;)
[Android Q&A, Help & Troubleshooting] ...Saurav:
I have a lenovo tab S8 50 LC (was running kitkat non rooted and no custom recovery )one morning when I picked my lenovo tab S8 50 LC I saw it was dead I thought the battery was drained and It got switched of on its own !

Then I tried powering it up It didn't turned on a black screen continuously flashing on its own I tried to open fast boot mode it was opening then I thought to get into recovery mode and to do a factory reset but it was not booting into recovery again black screen flashing I took my tab to nearest lenovo service center they kept it for a week they said when they are flashing software after flashing the phone doesn't boots into system again a flashing black screen the lenovo service center said that it has major software problem it cannot be fixed

So now the fast boot menu is still accessible so is there any way to fix the tab

pls help!
[Android Q&A, Help & Troubleshooting] Minto107:
Is it on lollipop? If so it's the reason why Lenovo didn't fix it. Then just use back to otkat zip and official KitKat firmware
[Android Q&A, Help & Troubleshooting] ...Saurav:
No I think it was running KitKat

But I didn't get u means what is otkat zip?

But I have downloaded s850 LC firmware 1.1gb from the website firmwarefiles.com I don't about that file's Android version

Pls if u write a step by step tutorial how to unbrick it will be helpful for me
[Android Q&A, Help & Troubleshooting] Minto107:
I wouldn't download it from there, you can get software from this thread or from lenovo-forums.ru (also recommended)

Back to otkat is a zip that contains flash procedure that allows you to go back from Lollipop to KitKat
[Android Q&A, Help & Troubleshooting] mrhamed:
because I could not found twrp.img file for lenovo s8, where is it?
[Android Q&A, Help & Troubleshooting] Minto107:
Here you go

https://xdaforums.com/showthread.php?p=70390973
[Android Q&A, Help & Troubleshooting] ...Saurav:
One question can I flash twrp via fast boot on my s8 50 LC and flash a twrp backup of s8 50 LC or twrp flashable stock ROM zip file of s8 50lc

Pls give links for twrp backup of s8 50 lc or twrp flashable zip stock ROM file for s8 50lc

And how to flash twrp via fast boot mode in s8 50lc through pc.
[Android Q&A, Help & Troubleshooting] Minto107:
Yes you can flash it through fastboot. Just simple command fastboot flash recovery name_of_recovery_image.img and you're good. There aren't flashable stock ROMs I believe, I'm not sure if any backup link in this head is still alive. BTW to flash recovery you need to unlock bootloader first
[Android Q&A, Help & Troubleshooting] ...Saurav:
Pls guide me how to unlock bootloader and where to find a link of twrp backup of s850lc

Pls if any one can create a flasable zip of S850 LC from their twrp back it will be helpful for all of us

Links of how to create

https://xdaforums.com/showthread.php?t=2746044
[Android Q&A, Help & Troubleshooting] grfloater:
Thank you Minto,

Unfortunatelly S8 does not connect to adb or flash tool. I have no access to any boot menu, black screen, by any key combination, even after unplugging battery. It only shows as MTP with these two files in it (mounted like a storage device). Is there any way to push a loader? through usb, or I'd need programming i/f (like jtag etc)? Should I forget it, try Lenovo service, or useless?

D
[Android Q&A, Help & Troubleshooting] Minto107:
To unlock bootloader you need to be on lollipop

If you can send it to Lenovo, do it, if you're still under warranty it's the easiest option. Another thing you can try is to unplug battery for longer period of time(like overnight) and then try droidboot combination

FOR YOUR INFORMATION, SINCE SATURDAY I'M RETIRING MY LENOVO TAB S8, I WILL KEEP THE DEVICE AS I PROMISED YOU A CUSTOM ROM AND WHEN THIS WILL BE POSSIBLE, YOU WILL GET IT ;) I'LL BE HERE AROUND FOR SOME MORE TIME AND MAYBE I'LL POST SOME ALL IN ONE GUIDE TO LENOVO S8, WHO KNOWS ;) ​
[Android Q&A, Help & Troubleshooting] ...Saurav:
Pls publish the guide soon
[Android Q&A, Help & Troubleshooting] Clairvoyant:
Sorted.
[Android Q&A, Help & Troubleshooting] ...Saurav:
Thank You!
[Android Q&A, Help & Troubleshooting] wookario:
Hello - can anyone tell me if it's possible to Flash A8-50F with a 4G rom, so that I can use sim card data transmission?
[Android Q&A, Help & Troubleshooting] Minto107:
Nope, it doesn't even has sim slot lol

Wysłane z mojego LG-H815 przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] wookario:
It does have a sim slot, but with no sim tray.
[Android Q&A, Help & Troubleshooting] Minto107:
Non LTE version shouldn't have it, anyway it doesn't have modem so still nope

Wysłane z mojego LG-H815 przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] mac231us:
Great post openslt!...one question

You mentioned "After installing, you can step by step update/upgrade to further official Lenovo S8-50LC versions by conventional Android update tools:"

How does one flash those zips? TWRP? thanks

Edit

have been out of touch with this device for some time now but hanging on to it (gets all major U.S LTE bands, has a flash for camera and the 1920x1200 on 8 inches is perfect especially when reading Flipboard...Tab S anything else does not come close-natively very well presented size at least on 4.4)

so question is ...is that 2016 update for 5.0 any good or is it still having the mushy laggy response to text inputs (talking about the LC version-anyone? I know the first 5.0 was lousy and hence so much interest in downgrade procedure...for now sticking with 4.4...Thanks)

EDIT2

searched the board for keyboard and found my own posts among others..lol but cannot recall (in Feb/Apr 2016 I say LL is bad then say agreeing with Minto that LL is good (in June 2016) both after the latest update (it appears). Only one way-try it out yet again (I use the 4g SIM and that is what was driving down the keyboard response it seems from past experience-and I do need to use the device with the 4g SIM so nothing around that)
[Android Q&A, Help & Troubleshooting] openslt:
For conventional update, you should go into Settings > About tablet > System update.

Or if you have ZIP in SD card, you can enter into recovery mode (then device is turned off, pressing Vol- and Power simultaneously, then selecting Recovery mode), then select update from external storage and navigate for ZIP.
[Android Q&A, Help & Troubleshooting] mac231us:
thanks .. it was the zip file flashing that I was wondering about. got it.

Edit LL as horrible as ever for keyboard and touch...when will I ever learn...back to KK for me.
[Android Q&A, Help & Troubleshooting] Minto107:
Well, LL is horrible when you use modem, if you don't, it's quite nice, it's snappier, works faster and smoother but of course battery life...

Wysłane z mojego LG-H815 przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] mac231us:
yes unfortunately have to use the LC as an LC...painful downgrade again (and never again 'upgrade')
[Android Q&A, Help & Troubleshooting] przemo10371:
Just posting again link to my bootloop fix (designated for s8-50f but should work on others) in case for sb who dont want to look for it in whole post

https://mega.nz/#!gNNTBSpK!jYe00sV41AuUY9dUkfvHzKowzjmDfCG72vHZ_zzK2Ag.
[Android Q&A, Help & Troubleshooting] ...Saurav:
Please someone create a noob friendly video how to unbrick Lenovo tab s850lc cuz iam not able to fix my tablet so please make noob friendly video please
[Android Q&A, Help & Troubleshooting] ...Saurav:
Please some one make one full video with all problems elaborated and solved for proper guidance and help for noobs please help
[Android Q&A, Help & Troubleshooting] Minto107:
Jeez just search this thread you'll find everything... It's so annoying when everyone asks the same stupid questions

Wysłane z mojego SM-T585 przy użyciu Tapatalka
[Android Q&A, Help & Troubleshooting] ...Saurav:
I understand that but everyone is not smart enough and overall this thread is very long to find things properly a guide would be appreciated so that no one ask the same question again and again .

A pc screen recording video will do
[Android Q&A, Help & Troubleshooting] openslt:
Don't panic about forum - look at right of this forum webpage and will see section "Most Thanked" with highlighted most valuable messages in this thread; and below is search field.

Don't panic about reading - solutions are quite enough explained; please understand that create video is very big task and requires to reproduce all scenarios to be captured in video (usually no one would like to repeat bricking of his tablet).

Don't panic about bricked tablet - it is very expected to temporally brick tablet while downgrading; how to repair, please read message "Downgrade from LP 5.0 to KK 4.4" (with Phone Flash Tool), especially part from middle of it with "The recovery of the tablet" header. Based on this, I wrote this text to work with alternative tool "Intel Platform Flash Tool Lite".

---------- Post added at 06:35 AM ---------- Previous post was at 06:11 AM ----------

To unbrick your tablet, you can read what I wrote here from section:

To provide that unbricking information in short in more structurally:

1) you need to enter into Fastboot screen by pressing all three buttons (Vol-, Vol+ and power button) simultaneously (then tablet is off) (it may require to try this combination multiple times to success),

2) then you can flash files from repair_Bios.rar archive with Intel Platform Flash Tool Lite.
[Android Q&A, Help & Troubleshooting] ...Saurav:
The problems iam facing

Intel flashtool not getting installled in my windows 10

Which driver to use?

Next

Which to flash first repair Bios or stock ROM?

And pls give link of s850lc ROM and how to flash it using flash tool lite that part is confusing means extraction otkat.rar in the original ROM part

( What actually happened to my tablet

The tablet bricked on its own I put it on charge and went to attend class when I came back home I picked it up it was switched off when I turned it on it was not turning on and a black screen flashing but it can enter to fastboot mode but my tablet was never rooted and it was on KitKat

And when i took it to Lenovo service centre they said that this tablet can't be fix by them replace mother board that I can't because it was out of warranty)
[Android Q&A, Help & Troubleshooting] openslt:
As alternative you can use Linux (it is free); you can run Linux even without installing it into computer (i.e. using LiveUSB).

If you can enter into recovery mode, you don't need repair (i.e. you can flash ROM immediately)

There was already links to required files for flashing with Intel Platform Flash Tool Lite or with Phone Flash Tool (note: it is not conventional ROM)

In this case seems flashing ROM will not help...
[Android Q&A, Help & Troubleshooting] ...Saurav:
So what should I do means fastboot opening and other menus opening which giving options to enter this and that but when I click reboot to recovery it again shows flashing Black screen

Which version of Linux to use means there are many suggest one I will try to dual boot

The Lenovo service centre guy said after keeping it for one week that seviour software problem can't be fixed by them change mother board

Local repairers also can't say anything

So what should I do now?????

Please help!
[Android Q&A, Help & Troubleshooting] Devtaji:
I just got the tab today and when I got the notification for update I went into it and got a message of "not found. Please connect to a stable connection and try again".

Is this a temporary thing or has the server that provides updated been taken offline and I'll have to do it all manually?
[Android Q&A, Help & Troubleshooting] openslt:
Thus seems you success to enter into boot menu, and thus you don't need flash.xml from repair_Bios.rar. I.e. you can try to flash pft_flash_lte_normal.xml directly.

Personally, I used Intel Platform Flash Tool Lite with openSUSE Leap 42.3 Linux.

Note: openSUSE uses RPM packages for software installation (like Fedora), thus to install Intel Platform Flash Tool Lite into openSUSE, select link for Fedora (i.e. link for RPM package; as of today, latest RPM is https://download.01.org/android-ia/...latformflashtoollite_5.8.4.0_linux_x86_64.rpm )
[Android Q&A, Help & Troubleshooting] ...Saurav:
So as per your message what should i do now ?

Recycle or keep trying??
[Android Q&A, Help & Troubleshooting] openslt:
If problem is with motherboard (as you mentioned here) – then I suggest to recycle.

If problem is with software (as you mentioned here) – you can keep trying.
[Android Q&A, Help & Troubleshooting] ...Saurav:
Ok