I was updating the router, but it took a long time to turn off and it became a brick. I connected it by serial communication, and the following log only stopped. What should I do? Actual ram and nand is 128mb. U-Boot 1.1.4 (Mar 1 2015 - 22:07:55) ap135 - Scorpion 1.0 DRAM: 4 MB -- Sent from: http://u-boot.10912.n7.nabble.com/