Donnie/Et al.,
I tried the downgrade on my used purchase after working through logistical issues to get the right files. The bird goes through its update process all the way through the motors updating, camera moving, fans shutting on-off, etc. After about 1.5 hours the beeping sound goes to firmware fail (D-D-D-D-D-D-D-D-D-D-D-D-D...….). I have tried it from 1.11 to 1.08, 1.11 to 1.09 and 1.11 to 1.10. I even got a fully charged battery and let it go till shutoff and the D-D-D-D-D-D-D-D-D-D-D-D... And the beeps never transitioned. After the failed updates, I checked the FW Log and it shows only the 1500 device not detected (see below). I am not getting the 0800 device not failed. the update always fails at 1900.
the FW Result never transitions out of "Upgrading".
Anyone seen this? I am fully prepared for the "you effed up the downgrade...send it in"!!
I am guessing send it in, but wanted to check with the gray beards to see if anyone had any suggestions.
FW RESULT AB
========== 2014.01.01 00:00:12 remo-con disconnect======
Packet: WM610_FC550_FW_V01.08.01.00.bin
Upgrading ...
========== 2014.01.01 00:00:12 remo-con disconnect======
Packet: WM610_FC550_FW_V01.10.01.40.bin
Upgrading ...
========== 2014.01.01 00:00:06 remo-con disconnect======
Packet: WM610_FC550_FW_V01.09.01.30.bin
Upgrading …
FW Log AB
[01625706]Version checking[3]...
[01625791][04 00][05] v1.30.1.28 -> v1.30.1.28 need upgrade.
[01625887][08 00][05] v2.14.9.42 -> v2.14.9.42 need upgrade.
[01625956][01 00][05] v1.29.5379 -> v1.29.5379 need upgrade
[01626025][01 01][05] v1.29.5379 -> v1.29.5379 need upgrade
[01626113][01 04][05] v0.5.5085 -> v0.5.5085 need upgrade
[01626239][03 05][05] v34.1.0.5 -> v34.1.0.5 need upgrade.
[01626349][03 06][05] v2.4.20.28 -> v2.4.20.28 need upgrade.
[01626468][05 00][05] v3.0.6.2 -> v3.0.6.2 need upgrade.
[01626553][09 00][05] v3.1.0.0 -> v3.1.0.0 need upgrade.
[01626668][11 00][05] v3.9.0.0 -> v3.9.0.0 need upgrade.
[01626788][12 00][05] v1.11.0.0 -> v1.11.0.0 need upgrade.
[01627029][12 01][05] v1.11.0.0 -> v1.11.0.0 need upgrade.
[01627168][12 02][05] v1.11.0.0 -> v1.11.0.0 need upgrade.
[01627348][12 03][05] v1.11.0.0 -> v1.11.0.0 need upgrade.
[01631850][15 00][06] device not detected.
[01631954][17 00][05] v1.1.0.8 -> v1.1.0.8 need upgrade.
[01632089][17 01][05] v2.0.1.6 -> v2.0.1.6 need upgrade.
[01632178][19 00][00] v0.0.0.0 -> v1.0.8.96 need upgrade.
[01632254]Done.
[01632331]Firmware upgrading[3]...
[01634657][19 00] Firmware upgrade start...
[01745759][19 00] Firmware upgrade finish failed (step = 4, err = 0xaa, idx = 4342, los = 1, ng = 0, usb = 1).
[01755830]Done.