I am having this same error when trying to connect (run db2020.xml script?) using a w380 CID53.

This is what I do:
1. Start FAR Manager
2. Press F11
3. Select Just da flasher
4. Select "db2020, DCU-60, 921600"
5. Select Jump down into a large rabbit-hole"
6. Hold C and connect to USB, meanwhile it connects and I see "bflash, oflash, ofs"
7. Select "oflash"
8. See this on screen:

used script: db2020.xml
turn off the phone, hold "c" button and plug usb cable
found EPIUSB2
connecting...
got response
protocol: 0301 baseband: D000
cid detect
<- cid=53 color=red platform=pnx5230
qhldr: 070703 1229 DB2020_SEMC_RECOVERY_P3N.2020_1_BLUE
error: SetDirectory(setdir(setmode(doscript(qhldr(header not accepted)

With only an OK button where script closes and I am brought back to the main menu in FAR manager.

I've used 3 different db2020.xml scripts I've downloaded off this site.

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This is what the end of my db2020.xml looks like:

<device name="db2020">

....[parts of the script for CID 49,51,52]...

<cid num="53" color="red">
<bflash break="2020_52">
<qhtry>2020_prologue</qhtry>
<run/>
<cmd3c>2020_f_R2A005</cmd3c>
<activateloader/>
</bflash>
<oflash>
<qhldr>070703 1229 DB2020_SEMC_RECOVERY_P3N.2020_1_BLUE</qhldr>
<cmd3c>080108 1810 DB2020_FLASHLOADER_R2A015.2020_53_RED</cmd3c>
<activateloader/>
</oflash>
<ofs>
<qhldr>070703 1229 DB2020_SEMC_RECOVERY_P3N.2020_1_BLUE</qhldr>
<cmd3c>070904 1245 DB2020_CSLOADER_R3A013.2020_53_RED</cmd3c>
<activatecsloader/>
</ofs>
</cid>
</device>
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Is there something wrong with the script? Or is there something wrong with the SEMC/FLASHLOADER files that the script is pointing to?