u/Commercial-Stage6425 — reddlx

JHEMCU GHF435AIO V2 bricked with latest Betaflight configurator?

Just wondering how many people are experiencing issues with the JHEMCU GHF435AIO V2. I know someone else recently opened a a post with getting their FC in a bad state that required it to be reflashed. My board, now fails to see its own GYRO, with “No_GYRO BOOT_GRACE_TIME MSP” after making a simple change and applying it under the ports tab.

While using the latest betaflight configuration online at app.betaflight (2025.12.2 a2d0f50) , I was trying to avoid running changes that would get me in a bad state. Soldering was clean and got it to connect without issues to the betafligh configurator app. Performed the first step by calibrating it without issues. Updated my settings on the modes and osd tab, and renamed the drone. Updated my controller expresslrs from the 10.0.0.1 page without any error. Did motor spin out test, and corrected one motors by simply swapping a single cable on it. At this stage I performed an ARM test, and it work. All looked good, until I went to the Port tab and enabled UART5 by enabling configurator/MSP and setting up Peripherals for VTX(MSP + Display). Once I rebooted, the arming flags say “No_GYRo_BOOT_GRACE_TIME MSP”. Drone can’t no longer be calibrated for the accelerometer. No longer functions. I attempted to revert back the simple change, but nothing.

I went to the listed site and downloaded the firmware for this model. Installed drivers and flashed using the provided hex file using betaflight. As it stand, no gyro is found. Any thoughts? Brand new out the box. Also odd that someone else also experience issues with theirs.

u/Commercial-Stage6425 — 3 days ago

▲ 7 r/HDZero

So with the HDzero expansion being end of life, it is appears a rare and a hard to get item. There are good, existing documentations online regarding the pinout layout for the HDzero expansion slot. It breaks down the video, audio, power, ground pins. It does appear we can simply connect the corresponding pins directly and bypass the expansion accessory to get it to work with any analog module. It is totally doable and people have been having success. I been wondering if we can make some diy kit that can be easily remove in and without manually inserting pins into the hoes.

Does anyone know what pin header size is used for the expansion? I’ve only seen online 2.54mm size. I believe the spaces are much tighter than this.

There does appear to be existing 3D printable shell of the expansion slot. This would help resolve the separate part of the puzzle.

What are people sorting to on this? Is HDzero coming out with a solution for those who wish to use an external analog module?

reddit.com

u/Commercial-Stage6425 — 10 days ago

▲ 12 r/HDZero

I’ve build a Kayoumini with a HDZero AIO15 FC and I’ve notice I get a lot of video noise when throttling. I have it paired with a hd lux camera running on channel 1 at 200mw. Using the supplied AWG cables for the camera. Using TrueRC antenna combo.

I’ve started with RCinpower GTS 1203 motors, with the default pigtail cable with the original capacitor and antenna. The punch out in configuration was bad. So made some changes to see what would help.

I changed the capacitor to a 1000uf ruby 35v rated on the tail and changed the antenna to a generic rchp one. As per manual instruction, antenna was layout away from pcboard. In addition,I’ve also drop down in motor size to 1103 spark motors. At this stage, although the changes did help, it did not compare to some of the online videos which appear excellent. Interesting, adding a capacitor directly to the power pads on the board did help, but just an odd spot for it. Video feed is way better when throttling, but doesn’t come close to some other videos in YB. The other factor would be antennas on the goggles, but is so odd since my test were done close proximity.

Is this a common thing? Anyone else experience this?

u/Commercial-Stage6425 — 13 days ago