I have been using rooted Lenovo K3 Note k50a40 ( Android version 5.0 firmware S117 ROM) , system shows a notification for a firmware update I have downloaded it but I am unable to locate the package so that I can flash it manually.
I've looked at /cache
partition(as suggested in this post did not find any OTA file but it has an empty directory called OTA)
Finding - On another forum somebody suggested that the file can be found at /lenovoota folder but I can not locate the folder itself let alone the package file.