$ emmcdl -p ttyUSB0 -f ~/Idol35_5_NPRG7627.bin -d logbuf@9ff00000 1
Version 2.10
Sahara Connectting To Device
Sahara version 1--2 
mode 3.
Sahara Downloading flash programmer: /home/vince/Idol35_5_NPRG7627.bin
Successfully open flash programmer to write: /home/vince/Idol35_5_NPRG7627.bin
FileOffset 0 bytesRead 52
[...]
FileOffset 110592 bytesRead 3600
Waiting for flash programmer to boot

===============Device Class:sahara Protocol:firehose Emergency:true================
Dumping at start logbuf@0x9ff00000 for size: 1 
Connected to flash programmer, starting dump
Firehose:ConnectToFlashProg
Serial Port No data within five seconds. Success
Firehose:ConnectToFlashProg
Serial Port No data within five seconds. Resource temporarily unavailable
Serial Port No data within five seconds. Resource temporarily unavailable

Status: 90 Message too long