Good news everyone! Stable firmware for LightningAsic controllers is underway, it should be ready for public in the coming week and it will be possible to upgrade (from v1, v2, v2.1..) by uploading it to the upload page. The firmware .bin will be released for public, but it is compatible only with LightningAsic controllers. Upgrading from factory Tp-link 703N will not work and it might brick your Tp-link, so don't even try!

It has some awesome features:

• Stripped, custom compiled OpenWrt (controller's OS) image optimized for size and speed
• Stability is heavily emphasized and guaranteed! No more random reboots or crashes
• Custom compiled cpuminer OC, frequency selectable up to 1200 MHz. We have tested it for 48 hours straight at 950 MHz (405 Kh/s) and without hardware errors! (see #1)
• Advanced miner monitoring and management
• Option to auto power cycle miners when one of the miners is stuck, this is done software wise and it has the same effect as unplugging, and plugging in the USB cable! (see #2)
• Up to 10 miners per controller, replacing the 32MB RAM chip with 64MB will double that figure
• 

note #1: depends on miner hardware
note #2: this will only work if the USB/hub is powered by the controller, you must not supply power to the USB hub.

BTC or dual mining is removed in the firmware for a multitude of reasons, BTC mining on GC3355 is unstable and wasteful.

If this doesn't want to make you pull out the LA controller out of the trash, I don't know what will...
For questions or feature requests, please PM me, not Jack.   Donations (1AMsjqzXQpRunxUmtn3xzQ5cMdhV7fmet2) are gladly accepted, and will be put towards improving the firmware even more.