[Q] Lenovo A820 - Lose root after update to S149
so I bought my Lenovo A820 rooted with a stock S135 ROM. An update came through saying it needed to be updated to S149, and I stupidly updated it through the system without checking first or creating a backup of my current ROM. Now my phone has loads of Chinese apps installed, I cannot use the play store as it says "no connection" and root checker says there are no SuperSU binaries installed.
My problem is that I was hoping to install the Etotalk MOD ROM which they put on their website for sale a few days ago. I should be receiving the ROM from them on Monday, however I cannot install it if my phone is not rooted.
So basically, is there any way I can re root my phone, downgrade it back to S135 so I can install CWM recovery, and then the Etotalk ROM? Any help of suggestions any of you can give me on this would be greatly appreciated.
Many thanks in advance!