a A7105 module defective?

my module a7105 seems to be defective:
how should i check if this is really true?
i posses a multimeter and a generator of signal.
if i have to buy another one should this one be ok: link to the seller
merci!

if i install a model*.ini file wich uses the A7105 ( for a hubsan for example) my radio won't work (the lcd is lighted but there is no information and it won't be possible to switch it off using the power button (i have to remove the battery). If i place model*.ini files for models which don't use the module it seems to work.
I say it seems cause i posses only an hubsan...
to edit the tx.ini file i use programmer's notepad. I removed only two semicolons in front of "enable-a7105..." and "has-pa-a7105....".
At the first line of the modules section there is a semicolon in front of "enable...cyrf6936=B12" and no semicolon in front of "has-pa-cyrf6936=0"
i soldered the module with the help of an engineer in electronics i think he did no mistake. I see him soon to check it.

What connections did you make to the module?

i did the connections respecting the chart in page 10 of the file "adding external modules to your deviation transmitter"
i made three connections from the cyrf module to the a7105:
7 to 3
2 to 4
3 to 5
no connection to miso (marked N/C ) it's maybe here that there is something
wrong
two connections from pcb pins to a7105:
(1+9) to vdd (1 and 9 are connected together)
2 to tms (i have only one module)

i choosed to remove the a7105
i checked the connections it seems ok
i will bind a model with another protocol (dsmx or dsm2 for example)

what position dod you give in

enable-a7105=???

tms should be A13 so the line should be

enable-a7105=A13

here are some pictures of the module
when i installed it i respected the chart of the "adding external module..." pdf document in page 10.
the module is currently not installed in the radio
i binded a blade nano cpx with my radio

gnd also needs connected to rxen, though I'm not sure if that would cause your problem. but the TX.ini part is crucial to have right

i am a bit surprised because it's not indicated in the chart i mentioned earlier

would it not be better to wire rxen to vdd if you want to use the hubsan protocoll?

i will reconnect the module next week;i will provide pictures
at that time.
in the tx.ini file in the subsection [modules] i use to remove the 2 semicolons which concerns
the a7105.

i had a look to the documentation on this site:
click here
especially on the picture attached to this post
it seems to me i have to connect the ground pin (n°7) of the Cyrf module to the
ground pin of the bug port.

i have similar problem when trying the hubsan protocol and i can use v911 flysky no problem help

also i used daryoons tut for mod step by step


this is the tx ini. im on devo 7e 4.0

current_model=4
language=0
music_shutdown=0
mode=2
brightness=5
contrast=5
volume=10
vibration=0
power_alarm=0
batt_alarm=4100
batt_critical=3900
batt_warning_interval=30
splash_delay=35
[modules]
enable-cyrf6936=B12
has_pa-cyrf6936=0
enable-a7105=A13
has_pa-a7105=1
enable-cc2500=None
has_pa-cc2500=0
enable-nrf24l01=None
has_pa-nrf24l01=0
[calibrate1]
max=3831
min=350
zero=1982
[calibrate2]
max=3864
min=213
zero=2012
[calibrate3]
max=3848
min=189
zero=1961
[calibrate4]
max=3824
min=375
zero=1990
[touch]
xscale=197312
yscale=147271
xoffset=-404
yoffset=-20
[autodimmer]
timer=20000
dimvalue=0
[countdowntimersettings]
prealerttime=30000
prealertinterval=10000
timeupinterval=10000
[telemetry]
temp=celcius
length=meters

as promised here are some new pictures of my soldering:
bug2.jpg and bug1.jpg show a confiuration where the lcd will remain blank as described above ( plus tx won't turn off with the power button).
Works.jpeg shows a soldering where vcc+txen won't be soldered to vdd.
with that soldering there is no message of error but i didn't succed in binding my hubsan, it sounds logical because the a7105 is not receiving any power!!

DO HAPPEN TO HAVE A V911 ALSO OR ANY OF THE WL TOYS STUFF CHRIS I WAS WONDERING IF WE HAVE THE SAME ISSUE WHEN I TRY TO BIND THE HUBSAN MY TX ALSO FREEZES REQUIREING RESTART BY BATTERY REMOVAL AND EVEN SO MUCH AS I HAD TO GO INTO USB MODE AND COPY A DIFFRENT WORKING MODLE CONFIG OVER THE HUBSAN ONE TO GET IT TO WORK RIGHT AGAIN BUT IT BINDS RIGHT UP TO THE WLTOYS HELIS NO PROBLEM I SCAVENGED MY BOARD FROM A V911 TX WITH THE POWER AMP