For L04 I have not yet seen a revert package so do not use these
Official downgrade package for L04:
- This downgrade packet is used for downgrade EMUI3.0 to EMUI2.3, only available for H60-L04...
You can also do it without 3but. Put update.app to you sd and then do local update. What you got in this case?
Sent from my H60-L04 (B370)
Great! Finally we got 4G button!