The flash have enough memory for the software.
AR1220 connect with PC directly. PC set up ftp service.
43%finished. network failure or no enough space on flash disk.
1. restart the AR1220 and press ctrl+B.
2. delete the old running software.
3. config the parameters of the ftp and name of software.
4. upload the new software but still fail.
5. formate the flash disk and upload the softare again.
1. This software has uploaded on another AR1220 as the same model with this one. Another AR1220 run normally.
So this software should be OK.
2. This software have uploaded several times and it fails every time at 43%.
3. Maybe there is something wrong with the flash.
4. So decide to delete the running software and upload the new software.
when dir the document on the AR1220 flash.
It shows there 59M space ocuppied by unkonw.
Maybe part of the flash is broken.
please make sure the hardware have high qualilty.