Update OpenTX Firmware to 2.3.10
Update 4in1 Firmware to V1.3.1.69

OpenTX Firmware update:
https://www.open-tx.org/downloads
Copy new firmware to TX SDCard then flash update.
Update SDCard content for 2.3.10

4in1 Firmware update:
If you don't need/want to customize the multi module firmware then you can use pre-compiled binaries available here: https://github.com/pascallanger/DIY-...odule/releases

To just use the firmware file selector here: https://downloads.multi-module.org/ .

Flashing from the Transmitter
For radios running OpenTX, there is an option to flash a precompiled firmware file to the multiprotocol module:

OpenTX: using the SD card browser

What you need:

A precompiled multiprotocol firmware file (.hex for Atmega328p or .bin for STM32)
A Flash from TX bootloader installed on an Atmega328p or STM32 multiprotocol module
A means to get the firmware file onto the transmitter's SD card
OpenTX 2.3.3 or newer
Copy the firmware file to the radio's SD card - it doesn't matter where you put it
Switch the radio on normally and use the radio SYS menu to locate the file on the SD card
Highlight the file and press the ENTER button
Choose Flash internal module or Flash external module as...Continue Reading

Replace brushless motor bearing and test flight (1 min 40 sec)

Front bearing 3*6*2.5mm
Rear bearing 3*7*...Continue Reading

Only replace front damage bearing low to middle speed test flight (3 min 24 sec)

Lucky found one same size of front bearing to replace, okay for low to middle speed running.

Build a new home for the old motor,
White Wing Maiden Flight

White Wing Maiden Flight (1 min 24 sec)

The damaged bearing persisted until the maiden flight was completed,
lucky ;-)

wingspan 860 mm
length 530 mm
height 132
weight 220g
C.G 20mm
old motor (bearing damage)
old ESC (? spec)
New servo dualsky AS55 * 2
Old Battery DUALSKY 3S 550mAh
Old receiver DSM2 6ch
New folding propeller 6*3

Maiden flight in the typhoon NANGKA outer circulation weather, lucky me.

KungFu Build Log and Maiden Flight (2 min 8 sec)

Wingspan 710mm
Length 520mm
Height 160mm
Motor A2208 2600KV
ESC EMAX Blheli 12A
Servo dualsky AS55 6g * 2
Battery 3S 550mAh
Propeller 4045~6040
Receiver DSMX 6ch
Total weight: 210g

Plan Download: http://jivaro-models.org/kungfu/page_kungfu.html...Continue Reading

72% Strange 900 Build Log and Maiden Flight (2 min 6 sec)

C.G 123mm
Wingspan 900mm
Length 430mm
Height 105mm
Weight 247g
Motor EMAX 1804 2480kV * 2
ESC HOBBYWING 10A 2~3S * 2
BEC 5V 1.5A
Receiver CORONA CR4D 4ch
Servo DUALSKY AS55 6g x 2
Propeller 5030 * 2
Battery dualsky 3S 550mAh (1 motor middle speed 8mins., 2 motors low speed 8mins.)

Plan Download: http://jivaro-models.org/strange/page_strange.html...Continue Reading