I tried to flash my w810 with xs++ (darwin)

Here's the phone's profile

22:11:28| Profiling SEMC phone...
22:11:28| Platform: DB2010
22:11:28| OTP CID: 50
22:11:28| EROM CID: 50
22:11:28| EROM Color: Red
22:11:28| IMEI: 35657301xxxxxx
22:11:28| Phone ID: W810
22:11:28| Region: APAC
22:11:28| CDA: CDA102555/101 R2A
22:11:28| Firmware Version: R4ED001
22:11:28| EROM: n/a
22:11:28| Ready for operation!

Here's the files that used:

MAIN: W810_R4EA031_MAIN_GENERIC_HN_RED50.mbn
FS: W810_R4ED001_FS_APAC_RED50.fbn

Here's what I get when I begin the process

22:12:01| ~~~~~~~~~~ Custpack information ~~~~~~~~~~
22:12:01| Custpack: APAC (CDA102555/101) (W810)
22:12:01| Generic(non-branded) custpack: No
22:12:01| Allowed languages: en, id, ms, tl, vi, zs,
22:12:01| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
22:12:23|
22:12:23| Sending db2010_db2012_cid50red_flash_r1a002.bin...
22:12:24| Applet ID: 060712 1520 HAN_DB2012_FLASHLOADER_R1A002_CXC1250695
22:12:24| This is a FLASH loader
22:12:24| Now flashing firmware main...
22:12:24| Flashing c:\documents and settings\spocadmin\desktop\se tools\w810_r4ea031_main_generic_hn_red50.mbn
22:12:24| Header type: BABE
22:12:24| 344 flashblocks
22:12:26| Binary acknowledge failed with: 15
22:12:26| Command: Error 0x15
22:12:26| Failed sending flashblock 1. Returnvalue 0xFFFF250B
22:12:26| Finishing flash
22:12:58| Error: Flashing failed
22:12:58| Disconnected... Unplug the phone


Any suggestions?

The main and fs file should always be the same .
For example if Main is R4EA031 , then FS also should be same version.

Correct

But: for CID49 red r4ea031 for the w810, the FS is called R4ED001, so Im tempted to say that they have got the right FS for their phone

Check http://www.iprotebe.cz/ just to make sure they havent got a FS in r4ea031 though in CID50, just to be on the safe side though

Used setool to flash and add custpack. Worked fine