Solutions for No HOST FIS-ReadyStatusFlags malfunction

“No HOST FIS-ReadyStatusFlags” is one of the most common malfunctions among Seagate F3 hard drives


When “No HOST FIS-ReadyStatusFlags” error occurs, usually the disk can not be ready and will continuously keep BUSY. There are many reasons that can lead to “No HOST FIS-ReadyStatusFlags” problem, and usually they belong to complicated firmware problems. What’s more, for “No HOST FIS-ReadyStatusFlags” error, there will be different error codes, and the specified reason for each error code is not the same, so in this article, the key point will not focus on the caused reasons but on how to solve “No HOST FIS-ReadyStatusFlags” problem.

In MRT software, since version of Seagate F3 Architecture, we have added one patch function in ROM tools which can fix “No HOST FIS-ReadyStatusFlags” problem. This function is very powerful, it can modify ROM data thus to solve “No HOST FIS-ReadyStatusFlags” problem.

Detailed steps of how to use MRT “No HOST FIS-ReadyStatusFlags” patch function are as following:

Open MRT software and enter into Seagate F3 Architecture, click “Tools->Firmware area object viewer->ROM tools”, we can see there are four ways to read out the ROM in the pop-up dialog box, they are ATA, BootCode, System file and Load from file. We know that when the disk keeps busy, ATA commands will be invalid, so we would like to recommend to use BootCode method to read the ROM out, and the baud rate is recommended to set to 460800.


Once the ROM has been successfully read out, we click the icon of patch tool, and we can see there is one option named “No host”. It only needs one click on this option, then “No HOST FIS-ReadyStatusFlags” problem will be easily resolved. We need to save the patched ROM, and write this new ROM to disk via Boot mode tool



After the writing is done, we need to power off and on, and after recalculating the translator, we can see there will be no more “No HOST FIS-ReadyStatusFlags” error notice, and usually the disk will be ready soon. Till now, “No HOST FIS-ReadyStatusFlags” error has been successfully resolved.

At the same time, for Seagate DM series hard disks, since version of Seagate F3 Architecture in MRT software, we have added virtual boot function, which is used to deal with fake ready DM series disks that can not execute any ATA command or serial command. There is “No HOST FIS-ReadyStatusFlags” patch function in DM virtual boot function.


Here is the tutorial link of DM series virtual boot for your reference:

The above all are the contents of how to solve “No HOST FIS-ReadyStatusFlags” problem, thanks for your reading.