CUAV Mavlink minimosd OSD text reboot when GPS locked

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What steps will reproduce the problem?
I bought CUAV Mavlink minimosd for my CX20, APM 2.5.2 v5.0 stock firmware. I 
install to the UART Port, Tx and Rx crossed. connected to the Boscam TS5823 fpv 
and sj4000, both using external battery. everything works fine. OSD data and 
sj4000 video can be shown on the screen.

But it got one serious problem. every time when the GPS locked(steady green led 
light). the OSD text keep reboot, but the sj4000 video keep show up. The text 
keep rebooted forever. 

What is the expected output? What do you see instead?
The OSD text keep rebooted forever if GPS locked.

What version of the product are you using? On what operating system?
CX20, APM 2.5.2 v5.0 stock firmware. I install to the UART Port, Tx and Rx 
crossed. connected to the Boscam TS5823 fpv and sj4000, both using external 
battery.

Please provide any additional information below.
OSD board Pad not solder yet

Original issue reported on code.google.com by rickysu...@gmail.com on 18 May 2015 at 3:16

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[deleted comment]

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Fixed by upgrading firmware to 792. 726 not work (reboot) on GPS locked.

Thanks

Another question:
Where can I download the latest complied pre-release firmware ? ex. r808

Download section only has 726 but buggy

Thanks

Original comment by rickysu...@gmail.com on 18 May 2015 at 3:30

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Hi, was wondering if someone could assist me, I bought the CUAV Minimosd (comes 
with aluminum casing)  5wire on one side with gnd,5v,tx,rx and dtr. The problem 
with it, since i bought it and install, it has been working fine until i 
decided to change the telementary. hook it up to the usb to serial(cuav 
usb-uart) downloaded the software. I was unable to read the minimosd. (Fail to 
talk to bootloader) and etc. But after that the osd stop working. Onyl one lite 
power up(red) but the st led does not come up anymore. Ive been trying to 
access it until today with no luck. Ive tried all the osd software available 
but with no success. Unable to talk to bootloader is the fisrt thing that comes 
up when trying to read.

Original comment by racetu...@gmail.com on 17 Jun 2015 at 4:13

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