Important notes:
The Ext and Ext2 firmware will only operate in an RFXtrx433E and cannot be used in an RFXtrx433!
Type1 and Type2 firmware will operate in the RFXtrx433 and RFXtrx433E.
The preferred firmware for the RFXtrx433E is Ext or Ext2.
Check chapter 2 in the RFXtrx User Guide for the list of supported protocols.

You only have to flash the latest firmware version.
The previous version is only present to enable you to go back in case of troubles.




RFXtrx433, RFXtrx433E, RFXrec433 change history:
============================================================
FW release 433_1025 06-04-2018
    Byron SX improved
    Visonic WTN201 detection added
    BTHGN129 temperature corrected for 0 and -0.1 degrees Celsius
    Kerui motion sensor correct reported as X10 motion sensor
    Livolo update for Scene cmd
    Mertik G6R-H4TB updated

FW release 433_1024 31-01-2018
    Viking 02038 03/2017 improved

FW release 433_1023 29-01-2018
    A-OK AC127 added
    Cartelectronic improved
    LightwaveRF updated
    Livolo updated

FW release 433_1022 26-10-2017
    Kerui gas and CO2 detectors supported
    1byOne improved
    Energenie transmit packets increased
    Imagintronic/Opus improved
    A-OK corrected

FW release 433_1021 18-09-2017
    new WS1200 detected
    Blyss receive improved
    BLYSS Temp/Hum sensor 630467 added in Ext
    BlindsT1 improved (Type1/2)
    BlindsT2 and BlindsT3 improved
    Cartelectronic Linky added

FW release 433_1020 09-06-2017
    Temp/Hum sensor AOK2011/2026 added as Rubicson
    Chuango keyfob added in Ext2
    BlindsT3 A-OK AC114 unit code forced to 1
    New version Banggood sensor supported in Ext firmware

FW release 433_1019 03-05-2017
    cartelectronics in Type2 and Ext2

FW release 433_1018 02-05-2017
    homeconfort in Ext

FW release 433_1017 25-04-2017
    RM174RF always battery full indicated
    Chuango updated
    BLYSS Temp/Hum sensor 630467 added in Type1 & Type2
    BTHGN129 updated
    Energenie improved
    Imagintronix improved

FW release 433_1016 28-02-2017
    TH9 - F007TH temperature+humidity sensor added (Ext2)
    TH9 - TFA 30.3208.02 added (Ext2)
    cartelectronics removed from Ext2 (keep using 1015)
    BBSB removed from Ext2
    Kerui improved (Ext2)

FW release 433_1015 03-02-2017
    Kerui improved with Lighting4 + Rubicson or LaCrosse enabled

FW release 433_1014 01-02-2017
    Kerui improved
    WSD10 added (Ext2)

FW release 433_1013 13-01-2017
    Kangtai, Cotech, SilverCrest, ... added (Ext2)
    Kerui improved

FW release 433_1012 14-12-2016
    Screenline added (Ext2)
    Kerui improved (Ext2 + X10 enabled)
    Mertik G6R-H4T1 improved
    MCZ check on valid command added

FW release 433_1011 02-12-2016
    MCZ pellet stove 3 fan model added

FW release 433_1010 29-11-2016
    Marquant 934134 added in Type2
    ARC undecoded updated

FW release 433_1009 04-11-2016
    RFY corrected

FW release 433_1008 27-10-2016
    Mertik G6R-H4TD (DRU) receive corrected
    SA33 smoke detector added (Type1,  Ext)
    MCZ pellet stove added (Type2, Ext)

FW release 433_1007 09-10-2016
    Firmware code optimized
    BTHGN129 corrected 
    Lighting4 low pulse timing accepted
    THN129 added
    WS1700 battery empty indication removed
    Philips SBC unit 9-16 added
    RM174RF smoke detector added (Ext2 firmware)
    Westinghouse fan control 7226640 added (Ext2 firmware)
    TFA 30.3056 pool sensor added

FW release 433_1006 08-08-2016
    Motorlux added
    Seav TXS4 added
    Livolo updated
    WS3500/4500 rain sensor corrected

FW release 433_1005 23-05-2016
    LightwaveRF corrected

FW release 433_1004 17-05-2016
    Livolo improved
    AC corrected

FW release 433_1003 14-05-2016
    Cartelectronic added to Type2 firmware
    Rubicson/IW008T/TX95 corrected
    WS3500/WS4500 temperature corrected
    MDRemote V108 added

FW release 433_1002 06-05-2016
    Cartelectronic TIC & Encoder added
    BlindsT6 updated
    ByronSX + Oregon enabled improved
    Somfy improved
    Mertik G6R-H4T1 improved
    WS1200 improved
    WS3500 corrected

FW release 433_1001 18-02-2016
    Firmware type Ext2 released
    Firmware version restarted at 1 (combination with Type now)
    Firmware Type displayed in response message.
    IT transmit protocol PROmax, FA500S, FA500WD, FA500DSS added (RFXtrx433E Ext2)
    Auriol Z31055B-TX sensor added (RFXtrx433E Ext2)
    WS1200 battery low detected
    Chuango, Eminent security sensors added:
    - decoded as Lighting4 in Type1, Type2 and Ext
    - decoded as X10 in Ext2

FW release 433_95/195/251 06-02-2016
    OWL CM180 ID improved
    Maverick ET-733 added
    Maverick ET-732 ID added (Type2 & Ext only)
    Alecto WS1700/3500/4500 negative temp corrected
    Viking 02813 added
    WS1200 updated
    ARC & Lighting4 can be enabled both (ARC/BBSB has priority)
    Lighting4 improved
    New PCR800 added
    ASP blind motors added (Type1 & Type2 only)
    Avantek added (Ext only)
    HQ COCO-20 added (Ext only)

FW release 433_94/194/250 24-12-2015
    ARC improved with RSL enabled (Type1 only)
    Rubicson pool sensor 49.019 added
    Blyss improved for blinds module
    Lucci Air added (ext only)
    Inovalley S80 plant humidity sensor added (ext only)

FW release 433_93/193/249 23-11-2015
    Mertik G6R-H4T16 added
    MDremote version 107 added
    Legrand CAD radio added (Ext only)
    Conrad RSL sensors improved (Type2 only)
    UPM improved (Type1 only)
    Cresta improved

FW release 433_92/192/248 17-09-2015
    Home Confort added
    Lighting4 improved

FW release 433_247 31-08-2015
    ASA blinds added (Ext only)

FW release 433_246 06-08-2015
    Oregon MSR939 motion sensor updated, false packets eliminated (Ext only)
    Revolt only available in Type2 (removed from Ext)

FW release 433_91/191/245 24-07-2015
    Conrad RSL updated for sensors (Type2 only)
    Oregon MSR939 motion sensor added (Ext only)
    WS1700 updated  (Ext only)
    BlindsT6 also in Ext available
    BlindsT6 Brel and ESMO added

FW release 433_90/190/244 23-06-2015
    Lighting4 reports real pulse length
    Imagintronix/XT300 optimized

FW release 433_89/189/243 01-06-2015
    RFY updated for Somfy DC RTS Receiver Part Number 1870135
    Alecto WS1700/WS4500 corrected
    Transmitter output level reported (+10dBm)
    RGB 432W added http://www.ebay.com/itm/191481664563 (maybe dx.com 227892??)

FW release 433_88/188/242 05-05-2015
    Oregon THR128/138 corrected
    RFY - MY/Stop command changed. (Some position functions did not operate)

FW release 433_87/187/241 02-05-2015
    KD101 number of xmit packets increased
    Mertik G6R_H4S added (transmit only)
    Improved; WS1700/WS4500
    Corrected Type2 firmware; Imagintronix/Opus with HW version 0
    Corrected; WT0122 temperatures < 14C
    Corrected; Transceiver type could be wrong after flash update

FW release 433_86/186/240 19-03-2015
    TFA water temp sensor 30.3160 added

FW release 433_85/185/239 18-03-2015
    Alecto WS4500 updated
    Oregon THGR328N corrected
    Sunpery,BTX added
    Dolat DLM-1 blinds added
    Mertik G6R_H4TD (DRU) added
    OTIO improved

FW release 433_238 05-03-2015
    Save Settings corrected

FW release 433_84/184/237 27-02-2015
    SelectPlus changed (important: requires an update of the application)
    Alecto WS4500 added
    Envivo ENV-1348 chime added
    DEA Systems receivers added
    CM180 improved

FW release 433_83/183/236 14-01-2015
    CM180 instant power reported (IMPORTANT: check if the HA application is updated for this else you get wrong total power)
    Viking sensors corrected
    Imagintronix enable added

FW release 433_182/235 06-01-2015
    SelectPlus200689103 Black Chime added (Action NL)
    SelectPlus200689101 RF corrected

FW release 433_81/181/234 02-01-2015
    smartwares improved
    Chamberlain CS4330CN added
    SelectPlus200689101 White Chime added (Action NL)
    Meiantech and Oregon3.0 received if both enabled
    Conrad RSL receive improved
    Rubicson stektermometer (2nd version) high temp corrected
    Eurodomest moved to Type2 firmware (ARC can be used instead)
    Philips SBC moved to Type2 firmware
    Media Mount moved to Type2 firmware
    Ninja removed from Type1 firmware

FW release 433_80/180/233 13-12-2014
    Mertik G6R-H4T1 transmit improved
    BlindsT0 & BlindsT1 transmit improved
    BlindsT0 receive improved (180 only)
    Byron SX receive improved
    LWRF receive improved
    Elro AB600P PIR added
    XDOM TH10 added
    Rubicson stektermometer corrected
    Livolo on/off modules with unit nbr 1 to 10 added
    Somfy Enable Sun+Wind & Disable Sun commands added  (233 only)
    Smartwares radiator valve added (233 only)

FW release 433_232 09-10-2014
    Alecto WS1700 and compatibles added

FW release 433_231 24-09-2014
    Check if RFXtrx433E OK
    RAEX removed from ext
    Media Mount support in ext

FW release 433_79/179/230 17-09-2014
    RFY program command changed
    Number of RFY remotes increased from 30 to 40
    Byron MP001 transmit added
    WT0122 pool thermometer added (maybe also Kjell 48019 Rubicson)
    Eurodomest added
    TRC02 receive improved
    Viking temperature measurement extended

FW release 433_78/178/229 25-07-2014
    Aoke relay added

FW release 433_77/177/228 17-07-2014
    RFY Erase remote corrected
    List RFY remotes added

FW release 433_77/177/227 25-06-2014
    Viking checksum added
    Conrad RSL improved
    BTHR968 forecast corrected
    RTHN318 corrected
    DM10 corrected
    LightwaveRF Off corrected
    Prego P-8426 sensor added
    Somfy venetian commands added
    Number of RFY remotes increased from 16 to 30
    Kambrook, Rubicson and Viking supported in EXT firmware.

FW release 433_76/176/226 29-05-2014
    Imagintronix soil sensor added

FW release 433_175/225 05-05-2014
    RFY protocol added (E version only)
    Type2 - Kambrook RF3672 added (Australia)
    Internal changes

FW release 433_74 19-04-2014
    Visonic improved
    Forest improved

FW release 433_73 07-04-2014
    Forest motors added

FW release 433_72 31-03-2014
    RTHN318 date/time added
    UPM with temp only sensor decoded as TEMP6 sensor
    Oregon3.0 with Byron SX or LWRF enabled improved
    Energenie 5-gang 429.950 added
    COCO GDR2-2000R transmit added
    Atlantic tamper & battery low added
    ARC with HomeEasy EU enabled improved
    DC106, YOODA, Rohrmotor24 tubular motor added

FW release 433_71    05-12-2013
    BLYSS transmit improved
    new version Rubicson stektermometer supported
    AB400 house code I to P corrected
    RGB controllers dx.com 130913 and 67412 added
    Revolt only in Type2 firmware

FW release 433_70    11-11-2013
    Conrad RSL2 transmit improved
    Byron SX receive improved
    Maverick ET-732 added
    Alecto SA30 added
    Oregon EW109 added
    CM180i corrected
    Mertik Maxtrol G6R-H4T21-Z22 added
    Revolt added

FW release 433_69    23-10-2013
    Siemens SF01 LF959RA50/LF259RB50/LF959RB50 transmit for extractor hood added
    Livolo transmit added
    TFA 30.3133 improved

FW release 433_68    07-10-2013
    Byron SX improved
    Lighting5 LWRF Colour commands added
    MDREMOTE LED dimmer added
    Alecto WS1200 added
    Byron SX Chime added
    ELEC4 CM180i AMP corrected
    ELEC3 CM180 battery indicator corrected
    HomeEasy EU improved (but ARC/Lighting4 degraded with HE EU enabled!)
    Impuls corrected
    Ematronic AC114 improved
    Viking/FineOffset improved

FW release 433_67    7-6-2013
    BlindsT0 transmit updated for battery motor.
    BLINDST4 addressing changed
    Transmit sequence number corrected
    LightwaveRF ON decoded
    ARC PIR improved
    Conrad RSL2 added