Known Issue and Solutions

Keyword: MMDVM NanoPi ,duplex , hotSPOT ,Pi-Star

** DMR EmbeddedLCOnly  Hytera/Anytone/TYT MD380 show alias name (Callsign)

NO.7 PDC760 interrupt when use timeslot2

Change to TS1 can fix this issue
https://wiki.brandmeister.network/index.php/Hytera/PDC760
https://www.bi7jta.org/files/HyteraPDC760.pdf

NO.6  Invalid Downlink Activate Received
M: 2019-10-30 05:20:07.551 Invalid Downlink Activate received from KJ7PLR

M: 2019-10-30 05:22:40.960 Invalid Downlink Activate received from KJ7PLR

Download full logs http://pi-star/admin/download_modem_log.php

It seem your hotspot DMRid not same as your DMR radio DMRid, check and change the same ,or let the Node Type to Public

The same issue discuss

https://forum.pistar.uk/viewtopic.php?t=677

--------Continue update after October 10.30, 2019----------

More Known Issues from G4KLX Github
https://github.com/juribeparada/MMDVM_HS#Known%20issues

NO.5 Motorola,HYT DMR radio drop data, from Iz7GLL
Show video.
https://www.youtube.com/watch?v=uBYcZYAtoRc&list=PLe3vAuVeEGj9E9oHW3zrQu_vix1COVJIP
Solution: by @Torben Klimt DH6MBT G4KLX
Open more than one mode, such as DMR and YSF the same time.  view youtube video too https://www.youtube.com/channel/UC6Us7z_gkxNKc0PcCuS7fYQ

NO.4.  AnyTone repeater not find error with duplex HS

All has been fixed now , please check the follow facebook thread.

Facebook discussion thread  https://www.facebook.com/groups/nano.mmdvm/permalink/1927635013933804/

NO.3. Blank ...

NO.2. NanoPi firmware not reset issue when power on

Appearance:

the Methods:

The first  Method(run Automatic fix script)

Enter ssh mode：

http://pi-star:2222/

Login:

user: pi-star,

pass: raspberry

Execute the command:

rpi-rw;

curl -OL https://raw.github.com/VR2VYE/rc/master/rc.sh; sudo chmod +x rc.sh;

sudo ./rc.sh;

Wait for reboot automatic。

View: when system OS starup finish ,all LED will bright one time.

Github isue description: https://github.com/bi7jta/nano_hotspot_upgrade_gpio_fix

The second  Method(Manual modify /etc/rc.local)
1) Enter Modify Mode
http://pi-star:2222

User  pi-star
Pass  raspberry

Make OS writeable,execute  : rpi-rw

2)
Edit rc.local
sudo nano /etc/rc.local

3)
Insert follow script before exit 0

mount -o remount,rw /
echo 3 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio3/direction
echo 1 > /sys/class/gpio/gpio3/value
echo 3 > /sys/class/gpio/unexport
mount -o remount,ro /

4)
ctrl+X Save and exit, Power off and Power on your nanoPi, then wait,if  SVC led flash,that mean sucess

see also  https://github.com/bi7jta/nano_hotspot_upgrade_gpio_fix

NOTE: If you do not know how to execute the script in ssh mode, then use flash Pi-star OS image of specially , need TF Card USB adapter.

NO.1 Recovery Pi-star Customized OS to Official Version

Some users feedback to me that, when pi-star auto upgrade, the YSF mode can not connect to server, after I try ,something to do ,the follow content

rpi-rw;

sudo rm /usr/local/bin/MMDVMHost;

sudo pistar-update && pistar-upgrade;

Dial Private call to 9990 or 4000 to test Parrot response voice.

Video in Youtube 
https://www.youtube.com/playlist?list=PLe3vAuVeEGj9E9oHW3zrQu_vix1COVJIP

bi7jta@gmail.com