Devo f12e fpv stops working after deviation

vlad_vy wrote: My Devo F12E from today is on the way to me.

Now I have Devo F12E.

You need to change receiver. Phantom use Futaba FASST compatible receiver. Deviation has not support for Futaba FASST protocol.

By the way, my Devo F12E work with Deviation normally (both computer screen and video screen) with old nightly build settings only, what doesn't work for other users. So we need investigate that problem further.

Moreover, I've replaced original Flash memory chip UPCT25VF512A (512 Kbit) to SST25VF032B (32 Mbit), so now I have "Ultimate Devo F12E"(devof12e-4Mb). It's very simple (you need replace 8-pin chip) and promising mod and you will have: stable filesystem with easy access (USB drive), 4Mb of file space and it will open the opportunity to further development.

SST25VF032B chip is 2mm wider than UPCT25VF512A, so I need straighten pins (about 90 degree to chip body) in order to fit pins to PCB pads. It takes about a hour to implement the mod. I haven't image of modded Devo F12E board, but you can look on original Devo F12E board:



I've added to my custom v5.0.0 build "devof12e-4Mb" and "emu_devof12e-4Mb".

Artus, if I can to desolder original chip and solder new chip with my old eyes, it can be performed by any user. I use wide chisel (5mm) to desolder (slightly raise) one side of the chip and then do it for other side of the chip. With two iterations I can desolder chip completely.

I do not use any additional pins to solder new chip, I bent pins at right angle to chip surface and solder to PCB tabs.

Unfortunately you can't use original Walkera firmware after this mod.

With my build you have to install "DevoF12E-4Mb" firmware exactly same way as for Devo 10: flash firmware by DfuSe USB Upgrade, format USB drive and copy filesystem files.