JKing2 Yes i was successful in uninstalling the browser (and any other app) on the nuu f4l.
Ill try to be as clear as possible:
First you have to enable debugging by dialing *#777# .....
Then download adb....
On adb type in "./adb devices" - make sure your device is connected.
Next type in "./adb shell pm list packages"
Find the package (app) you want to uninstall in our case with the browser, "com.android.browser"
Enter "./adb shell pm uninstall --user 0 com.android.browser"
This should uninstall the browser FOR THIS USER meaning it can technically be reinstalled but not very easily...
Hope this helps you.