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

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, can't promise you that this will be ultimate guide for this tablet, but at least this may help get started.


Lenovo Offical Stock ROM (TABS8-50F_140929)
TABS8-50F_USER_S000143_1409291652_WW14_BMAIN_ROW_US
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.

This is the firmware that comes with your tablet (at least the one I bought from BestBuy, USA version). I know that after this firmware, there's another update build 141203 pushed to tablet, but unfurtantely, I could not able to find full firmware download for build 141203, if you do have or know, please let me know so I can list it here. If you do Google and search Lenovo S8-50F, you will run into several different sites posting different firmware of Lenovo S8-50F variants, it is all depends on region where Lenovo pushes the firmware even if all firmwares for Lenovo S8-50F somehow same, but slightly different build for each region, so it gets confusing.

Root (method 1): - a big thank to Xakep 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)

Custom Recovery:
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

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.

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


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, this is user driven community, so it is all about sharing the knowledge, and experiences :silly:

Whenever I find or run into additional info about Lenovo TAB S8-50F, I will try to post it here. You are all more than welcome to provide your feedback, details, additional info, links..etc. :good: