[yihill]

I bought my Z10 at unlocked-mobiles.com from UK to China. It's factory unlocked STL100-2.
Works well with China Mobile sim card at GSM. No LTE however.

I have try my best to update my Z10 from 10.0.9.348 to 10.0.10.86. No matter reload OS or OTA with or without our SIM card, we get nothing. I think most unlocked Z10 owner did this very hard these days.
We got Z10 at higher price, use it with our home carrier. So we can not get the latest update.

Recently, I and my friends who use Z10 in China, find a pathway updating our Z10.
We bought a obsolete Vodafone sim card from taobao.com, about 1 dollar. Insert it in Z10, no signal of course. But we can check update with WIFI, and we find the 10.0.10.90 is avialable to update. Although it only 147M, but rely on the Great Fire Wall by the Gov, 1 hour later, we did update to 10.0.10.90.

Maybe unlocked Z10er in other country can copy this pathway. Good Luck!

[theslick]

can't wait to get Vodafone simcard to try this :P