Iceriver AE1 LITE

Does anyone know if there is a updated firmware for the AE1 litle 300mgh by Iceriver. My miner doesnt hold a constant hashrate and drops off periodically. And my pool is only reporting a 280mh for 24hours and my iceriver screen saying 340+ with the periodical hash drop. Is the any differnet firmware like after market thats better than the stock. All help is greatly appreciated thank.

Im using F2Pool as well do you think it could be the pool and i need to switch

Switch to whale pool . I was using DxPool on one of my ae lites and whale on the other . Noticed the one on whale hashrate was good so I switched other one over -problem solved !