New firmware out today:

Dear
We are presenting you with an extensive A5 and A4+ firmware upgrade that improves the stability and convenience of the miner greatly. For your benefit, your firmware needs to be upgraded to the latest version (no.12.11 version). Here are the upgrades:
1. Fixed the bug that causes hashrate to decrease, making the hashrate more stable.
2. Added a preheating function before booting, partially sovled the decrease in hashrate due to temperature
3. Further optimized the overheat protection system, so that the miner is more stable.
 
Firmware dodwnload link: http://www.innosilicon.com.cn/download/update.bin
How to upgrade: Follow the appendix of the user manual
Support center: http://www.innosilicon.com/html/downA4/index.html
Thank you for your support of Innosilicon, we will persevere in our efforts to bring you the best user experience. 
Please reply this email,thanks very much.
Wish you a good day.