Issue description


TS-x31P/x31+ running QTS prior to 4.3.6.0895 build 20190328 will fail to upgrade to QTS 4.4.1 with the following system log Failed to update system. A flash read/write error occurred. Error code: FW004. 


Please run following procedures to resolve this issue. 



Applied model

TS-x31P/x31+ 

The Procedure


1. Download the latest QTS 4.3.6.1070 firmware from following link below or later version 


https://download.qnap.com/Storage/TS-X41/TS-131P_231P_431P_X31+_20190919-4.3.6.1070.zip


2. Manually Upgrade TS-x31P/x31+ by web interface with above file. 


https://support.itcgindia.com/support/solutions/articles/64000225084-how-to-manually-upgrade-downgrade-firmware-by-qts-web-interface


3. After NAS reboots, run Live update to upgrade the firmware to 4.4.1  again.