Lenovo Yoga Tab 3 10

Lenovo Yoga Tab 3 10" (YT3-X50) factory image, OTA update or backup needed

Question

I was playing around with some modifications to my rooted Yoga Tab 3, and I messed up - the tablet wouldn't boot anymore, even after a factory reset. I could still boot into recovery, so I was not too worried until I realized that I can't just download a factory image or an OTA update for my tablet in order to restore everything.

In desperation, I tried flashing the update image for YT3_850F, which was available online. This made the tablet boot again (I can hear the sound and I can see it through ADB), but without anything being displayed on the screen, which is strange, since both tablets seem to share the same graphics card (Qualcomm Adreno 304).

I think my only remaining option is to locate a factory image, or an OTA update for my tablet and flash it in recovery. Does anyone know where I can get an image for YT3-X50?

Or maybe someone with a rooted tablet could do me and the rest of the Internet a huge favour and make a backup image of their tablet available?

Are there any other recovery options that I am missing?

— Val Blant | Sources

Answer

Since I'm a Chinese, I could browse Chinese sites (including Lenovo's own) and grab what I can get. Here's something I dug up with a wee bit of search.

Factory images (page in Chinese). Available for both F (WiFi) and M (cellular) variants. Click any link with "é“¾æŽ¥è·³è½¬" before them to go to the download landing page, then click what's behind "ä¸‹è½½åœ°å€" for the actual download site (Baidu Cloud). It does seem to require Baidu Cloud client to be installed, so if you can't download it yourself, give me a heads-up and I'll see if I can host it on my own AFH. The extraction password (if there's any) is "ask.lenovomobile.com".

Flashing tutorial (page in Chinese). Requires an SD card with >4GB free space, and a >50% charged battery. Rename the extracted firmware package (something like YT3-X50F_USR_S000015_1509171725_Q1241_PRC_CN_otafull_factory_update.zip) to * factory_update.zip (as the page says, "*" stands for any amount of characters - I don't know what that means exactly so I'll just leave the translation here). Insert the card into the device when it's powered off, then hold POWER and VOL+ for ~3 secs until it vibrates and boots. The devices should automatically do a factory reset and update from the zip, then reboot subsequently.

Also refer to this starter thread for general info.

— Andy Yan | Sources

Lenovo Yoga Tab 3 10" (YT3-X50) factory image, OTA update or backup needed

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